improvements for notifications and prepare for release

.gitignore

@@ -175,6 +175,7 @@ cython_debug/
 .pypirc
 
 /individual_images
+/plugins
 *.xlsx
 *.csv
 *.snirf
@@ -183,4 +184,5 @@ flares-*
 *.flare
 *.cfg
 tempCodeRunnerFile.py
-*.pkl
+*.pkl
+*.joblib

changelog.md

@@ -1,3 +1,43 @@
+# Version 1.8.0
+
+- Plugin Manager now supports checking and downloading plugin updates to ensure plugins can be updated
+- Plugin Manager now properly uninstalls plugins when requested rather than doing nothing
+- Installing plugins now displays a progress bar when downloading and no longer hangs the application when downloading a big plugin
+- Project loading now displays a loading message when loading big projects and no longer hangs the application when loading
+- New preferences options and menus are now available! All existing preferences have been moved into new sub categories
+- The UI preference category now has the Show Advanced Parameters preference
+- The Updates preference category has two ney options to prevent the automatic checking of application or plugin updates
+- The Theme category has remain untouched and all other preferences have been moved to the Processing category
+- Added a new preference in the Processing category called "Separate Events". This allows events to have their own values, and not be collapsed into a single value
+- Export To CSV Viewer export options now perform the actions they claim rather than having no functionality
+- Logs on a per participant basis are now available to be viewed from within the application
+- They can be accessed by right clicking a participant bubble and selecting "Show Logs". Logs will be empty if they have not been processed
+- A notification now appears when processing completes even if the application is not focused
+- Fixed a regression where opening a folder would no longer load all the files in that folder
+- Added inspirational quotes to the About window
+- Licence is now clickable from the About window
+- Improved code stability and functionality
+
+
+# Version 1.7.2
+
+- Fixed the Linux build not starting if shared library files were missing from the host machine
+- Fixed the macOS version not loading plugins due to not having an HTTPS certificate
+
+
+# Version 1.7.1
+
+- Added support for Plugins! Plugins can be downloaded from the official repository or from custom ones. Support for creating a plugin can be found on the wiki
+- Files and folders can now be dragged and dropped into the loaded files area to be loaded instead of relying on the file menu
+- Fixed an issue where shadow snirf files would attempt to be loaded by the application. Fixes [Issue 92](https://git.research.dezeeuw.ca/tyler/flares/issues/92)
+- Fixed an issue where the application could not automatically update between versions 1.5.1 to 1.7.1. Sorry! 1.7.1 upgrading onward should be fixed and more robust
+- Fixed an issue where some log files would not generate, or would generate in an incorrect location
+- Fixed an issue where updating events in a snirf file would not release memory properly
+- Fixed an issue where loading multiple files in quick succession could cause some of the files to never finish loading
+- Fixed an issue where loading a saved project, pushing clear, and re-opening snirf files would cause them to appear incorrectly in the loaded files area
+- Fixed a crucial bug where short channels were still being sent to the donor pool to assist in interpolating long channels from. Fixes [Issue 80](https://git.research.dezeeuw.ca/tyler/flares/issues/80)
+
+
 # Version 1.7.0
 
 - This is potentially a save-changing release due to adding more data into the save file. Please update your project files to ensure compatibility
@@ -12,6 +52,7 @@
 - Added a new parameter to the PSP section on the right side of the screen: PSP_USE_HEART_RATE_BAND. This functions similarly to the existing SCI_USE_HEART_RATE_BAND
 - Added description text to the Inter-Group and Intra-Group Brain and Image Viewers, as well as the Functional Connectivity windows to explain what output can be expected
 - Added a new Preference option of Theme. Allows from selecting Auto (System default), Light, or Dark. Fixes [Issue 7](https://git.research.dezeeuw.ca/tyler/flares/issues/7)
+- Optode updater can now update optode locations in multiple snirf files at once
 - Removed image index 1 (Significance) from the Intra-Group Brain and Image Viewer as it is now provided more in depth with the Stats viewers
 - Modified the timeout when waiting for the application to close while performing updates down to a reasonable number
 - Modified the help messages for parameters in the SCI and PSP areas to better reflect how the parameters are used
@@ -32,6 +73,7 @@
 - Fixed an issue where certain parameters would not enable or disable depending on other parameters when they should've
 - Fixed an issue where not all widgets would close when attempting to close the application causing the application to crash
 - Fixed an issue where events were not created correctly after the data had been resampled by the design matrix
+- Fixed an issue where progress bar colors would not reset if the data was reprocessed
 
 
 # Version 1.6.0

changelog_major.md

@@ -1,35 +1,55 @@
-# Version 1.6.0
+# Version 1.7.2
 
-- This is potentially a save-changing release due to adding more data into the save file, renaming existing data, and changing what part of the code saves data. Please update your project files to ensure compatibility
-- It is still possible to load older saves by enabling 'Incompatible Save Bypass' from the Preferences menu, but your mileage may vary
-- Optimized calculations being performed when calculating the Heart Rate to speed up step 5 by up to ~35% on a per-file basis
-- Optimized calculations being performed when running the General Linear Model to speed up step 5 by up to ~35% on a per-file basis
-- The Group Stats Viewer windows will now properly load the Right/Left or Front/Back fallback ROIs if JSON_LOCATION is not set
-- Changed the warning message for lots of short channels and changed when it shows to be percentage based (35%) instead of numerical based (6)
-- Renames GENDER to SEX to better represent the values that the field expects and to be more BIDS compliant
-- Changed the Assign Groups by AGE window to now be the Assign Groups by Metadata window and added support for grouping by other metadata values
-- Added a new metadata value of HAND to allow for grouping participants based on their handiness
-- Updated the layout of the participant metadata area to better accommodate current and future metadata values
-- Updated the message displayed when "Why are these useful?" is clicked to better represent what the values are used for and to accommodate the new metadata values
-- Changed the application title to now show what project you are working on. If you are not working on a project, it will display 'Untitled'
-- Tracking of current save states is now present and an asterisk will now appear in the title bar when a project has not been saved
-- Currently tracking is only supported on loaded files, parameters on the right side of the screen, and when processing has completed. Per-file metadata or processing stages are not currently implemented
-- Clicking close on the Main Window will now properly close all sub windows when closing the application and closing the application with unsaved changes will now prompt to save a project or discard changes. Fixes [Issue 87](https://git.research.dezeeuw.ca/tyler/flares/issues/87)
-- The Save button under the File menu no longer asks for a destination if a saved project was already loaded. Fixes [Issue 72](https://git.research.dezeeuw.ca/tyler/flares/issues/72)
-- Added an icon to the 'Toggle Status Bar' view option
-- Status bar visibility and window layout sizes are now stored between application sessions. Fixes [Issue 88](https://git.research.dezeeuw.ca/tyler/flares/issues/88)
-- The popup that appeared when a project was saved has now been moved to a message displayed from the status bar
-- Moved all loading of files, loading of folders, loading of projects, and saving of projects to a new file for easier future development
-- Changed the working of some messages on the status bar to better reflect what has occurred
-- Added a new terminal command 'assoc' to associate .flare files to the application. This is undergoing testing and may not function correctly.
-- Removed the debug flag from the application package, which may speed up the application. Fixes [Issue 11](https://git.research.dezeeuw.ca/tyler/flares/issues/11)
-- Fixed an issue where the two Group Stats Viewer windows would crash the application once attempted to be opened if JSON_LOCATION was not set
-- Fixed an issue where participants could be skipped when processing multiple participants at once which could prevent overall processing from completing
-- Fixed an issue where when loading a save file some list dropdowns could go blue and bold even if the value was default
-- Fixed an issue where the Analysis button would not be clickable if the user had previously pushed Clear. Fixes [Issue 83](https://git.research.dezeeuw.ca/tyler/flares/issues/83)
-- Fixed an issue where removing all files via their right click feature would cause the Process button to still be visible. Fixes [Issue 91](https://git.research.dezeeuw.ca/tyler/flares/issues/91)
-- Fixed an issue where some popup windows would not properly display the application name when they would open
-- Fixed an issue where the welcome dialog image would not display correctly on macOS
-- Fixed an issue where the Linux version would fail at 0 seconds when attempting to process files
-- Fixed an issue where fOLDing channels could cause the same channels to be repeated misaligning the labels
-- Fixed all instances of the word MacOS to now read macOS to match Apple branding
+- Fixed the Linux build not starting if shared library files were missing from the host machine
+- Fixed the macOS version not loading plugins due to not having an HTTPS certificate
+
+
+# Version 1.7.1
+
+- Added support for Plugins! Plugins can be downloaded from the official repository or from custom ones. Support for creating a plugin can be found on the wiki
+- Files and folders can now be dragged and dropped into the loaded files area to be loaded instead of relying on the file menu
+- Fixed an issue where shadow snirf files would attempt to be loaded by the application. Fixes [Issue 92](https://git.research.dezeeuw.ca/tyler/flares/issues/92)
+- Fixed an issue where the application could not automatically update between versions 1.5.1 to 1.7.1. Sorry! 1.7.1 upgrading onward should be fixed and more robust
+- Fixed an issue where some log files would not generate, or would generate in an incorrect location
+- Fixed an issue where updating events in a snirf file would not release memory properly
+- Fixed an issue where loading multiple files in quick succession could cause some of the files to never finish loading
+- Fixed an issue where loading a saved project, pushing clear, and re-opening snirf files would cause them to appear incorrectly in the loaded files area
+- Fixed a crucial bug where short channels were still being sent to the donor pool to assist in interpolating long channels from. Fixes [Issue 80](https://git.research.dezeeuw.ca/tyler/flares/issues/80)
+
+
+# Version 1.7.0
+
+- This is potentially a save-changing release due to adding more data into the save file. Please update your project files to ensure compatibility
+- Renamed all instances of "Inter" to properly read as "Intra" and changed "Cross" to now read as "Inter"
+- Changed RESAMPLE to only apply where it is required to avoid having Functional Connectivity analysis methods running on data that has been resampled
+- Added parameters that appear when attempting to generate results from the Participant and Intra-Group Functional Connectivity viewers and removed the non-functional placeholder parameters
+- Modified the Participant and Intra-Group Functional Connectivity analysis options to better perform their expected tasks. This remains as a BETA feature
+- Removed the existing Intra-Group Functional Connectivity option and replaced it with two new ones: Beta-Series Correlation and Spectral Coherence (epochs)
+- Updated the names of the methods provided for the Participant Functional Connectivity Viewer to better match the actions they perform
+- Updated the warnings for the Functional Connectivity Viewers to better represent the challenges these analysis options now face
+- Added basic unit testing to hopefully prevent any accidental processing changes from occurring in the future
+- Added a new parameter to the PSP section on the right side of the screen: PSP_USE_HEART_RATE_BAND. This functions similarly to the existing SCI_USE_HEART_RATE_BAND
+- Added description text to the Inter-Group and Intra-Group Brain and Image Viewers, as well as the Functional Connectivity windows to explain what output can be expected
+- Added a new Preference option of Theme. Allows from selecting Auto (System default), Light, or Dark. Fixes [Issue 7](https://git.research.dezeeuw.ca/tyler/flares/issues/7)
+- Optode updater can now update optode locations in multiple snirf files at once
+- Removed image index 1 (Significance) from the Intra-Group Brain and Image Viewer as it is now provided more in depth with the Stats viewers
+- Modified the timeout when waiting for the application to close while performing updates down to a reasonable number
+- Modified the help messages for parameters in the SCI and PSP areas to better reflect how the parameters are used
+- Modified the heart rate calculation to be more precise and correct when dealing with good data and not messy data
+- Modified the heart rate calculation to not take only one channel in the data to use, but rather an average of channels. This still prefers short channels if they are present
+- Fixed an issue where loading a project from a saved project file would not allow the data to be reprocessed with new parameters
+- Fixed an issue where the "Hand" BIDS metadata value would not populate on bubbles correctly
+- Fixed an issue where performing PSP could ignore the bad channels that were marked by SCI and SNR
+- Fixed an issue where the heart rate calculation would disregard all calculations and fall back to an extremely rudimentary calculation
+- Fixed an issue that could prevent log file generation while the application was in the middle of an update
+- Fixed an issue where a rare crash could occur while the application was in the middle of an update
+- Fixed an issue that could have passed multiple conditions when generating an Intra-Group Stats image
+- Fixed an issue that could pass NaN values when attempting to collapse channels
+- Fixed an issue that was causing the OLS model to always be used for brain images with multiple participants, and not the MixedLM model
+- Fixed an issue that could cause the Wavelet filtering step to crash
+- Fixed an issue where file associations appeared to work as intended but would not load the project on macOS and only open the application
+- Fixed an issue where file associations would refuse to associate on macOS once they have attempted to be associated
+- Fixed an issue where certain parameters would not enable or disable depending on other parameters when they should've
+- Fixed an issue where not all widgets would close when attempting to close the application causing the application to crash
+- Fixed an issue where events were not created correctly after the data had been resampled by the design matrix
+- Fixed an issue where progress bar colors would not reset if the data was reprocessed

flares_updater.py

@@ -20,21 +20,24 @@ from pathlib import Path
 from datetime import datetime
 
 # External library imports
-from src.shared.shareddata import APP_NAME, PLATFORM_NAME
+from src.shared.shareddata import APP_NAME, PLATFORM_NAME, get_app_dir
 
 
 if PLATFORM_NAME == 'darwin':
     _log_path = os.path.join(os.path.dirname(sys.executable), f"../../../{APP_NAME}_updater.log")
 else:
-    _log_path = os.path.join(os.getcwd(), f"{APP_NAME}_updater.log")
+    _log_path = os.path.join(get_app_dir(), f"{APP_NAME}_updater.log")
 
 LOG_FILE = _log_path
 
 
 def log(msg: str) -> None:
-    with open(LOG_FILE, "a", encoding="utf-8") as f:
-        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
-        f.write(f"{timestamp} - {msg}\n")
+    try:
+        with open(LOG_FILE, "a", encoding="utf-8") as f:
+            timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+            f.write(f"{timestamp} - {msg}\n")
+    except Exception:
+        pass
 
 
 def kill_all_processes_by_executable(exe_path: Union[str, Path]) -> bool:
@@ -45,22 +48,28 @@ def kill_all_processes_by_executable(exe_path: Union[str, Path]) -> bool:
         for proc in psutil.process_iter(['pid', 'exe']):
             try:
                 proc_exe = proc.info.get('exe')
-                if proc_exe and os.path.samefile(os.path.realpath(proc_exe), exe_path):
-                    log(f"Terminating process: PID {proc.pid}")
-                    _terminate_process(proc)
-                    terminated_any = True
+                if proc_exe and os.path.exists(proc_exe) and os.path.exists(exe_path):
+                    if os.path.samefile(os.path.realpath(proc_exe), exe_path):
+                        log(f"Terminating process: PID {proc.pid}")
+                        _terminate_process(proc)
+                        terminated_any = True
+            except (psutil.NoSuchProcess, psutil.AccessDenied, FileNotFoundError) as e:
+                continue
             except Exception as e:
                 log(f"Error terminating process (Windows): {e}")
+
     elif PLATFORM_NAME == 'linux':
         for proc in psutil.process_iter(['pid', 'cmdline']):
             try:
                 cmdline = proc.info.get('cmdline', [])
-                if cmdline:
+                if cmdline and os.path.exists(cmdline[0]) and os.path.exists(exe_path):
                     proc_cmd = os.path.realpath(cmdline[0])
                     if os.path.samefile(proc_cmd, exe_path):
                         log(f"Terminating process: PID {proc.pid}")
                         _terminate_process(proc)
                         terminated_any = True
+            except (psutil.NoSuchProcess, psutil.AccessDenied, FileNotFoundError) as e:
+                continue
             except Exception as e:
                 log(f"Error terminating process (Linux): {e}")
 
@@ -82,6 +91,9 @@ def _terminate_process(proc: psutil.Process) -> None:
 
 
 def wait_for_unlock(path: Union[str, Path], timeout: Union[int, float] = 100) -> None:
+    if not os.path.exists(path):
+        return
+
     start_time = time.time()
     while time.time() - start_time < timeout:
         try:
@@ -95,7 +107,7 @@ def wait_for_unlock(path: Union[str, Path], timeout: Union[int, float] = 100) ->
             log(f"Still locked: {path} - {e}")
             time.sleep(1)
     log(f"Failed to delete after wait: {path}")
-    
+
 
 def delete_path(path: Union[str, Path]) -> None:
     if os.path.exists(path):
@@ -130,8 +142,8 @@ def copy_update_files(src_folder: Union[str, Path], dest_folder: Union[str, Path
 
 
 def copy_update_files_darwin(src_folder: Union[str, Path], dest_folder: Union[str, Path], updater_name: str) -> None:
-
-    updater_name = updater_name + ".app"
+    if not updater_name.endswith(".app"):
+        updater_name = updater_name + ".app"
 
     for item in os.listdir(src_folder):
         if item.lower() == updater_name.lower():
@@ -152,10 +164,7 @@ def copy_update_files_darwin(src_folder: Union[str, Path], dest_folder: Union[st
 
 
 def remove_quarantine(app_path: Union[str, Path]) -> bool:
-    """Removes the macOS quarantine extended attribute from an application bundle using osascript.
-    Returns True on success, False on error or cancellation.
-    """
-
+    """Removes the macOS quarantine extended attribute from an application bundle using osascript."""
     clean_path: str = str(app_path)
     escaped_path: str = shlex.quote(clean_path)
 
@@ -172,7 +181,7 @@ def remove_quarantine(app_path: Union[str, Path]) -> bool:
         return False
 
 
-def main():
+def main() -> None:
     main_exe: str = ""
     app_dir: Path = Path()
     bundle_dir: Path = Path()
@@ -189,17 +198,24 @@ def main():
         main_exe = sys.argv[2]
 
         main_exe_path = Path(main_exe).resolve()
-        app_dir = main_exe_path.parent                         
-        bundle_dir = main_exe_path.parents[2]                 
-        parent_bundle_dir = main_exe_path.parents[3]
+        app_dir = main_exe_path.parent
 
-        updater_name = os.path.basename(sys.argv[0])
+        if PLATFORM_NAME == 'darwin':
+            # Bundle hierarchy on macOS: App.app/Contents/MacOS/executable
+            if len(main_exe_path.parents) >= 4:
+                bundle_dir = main_exe_path.parents[2]
+                parent_bundle_dir = main_exe_path.parents[3]
+            else:
+                bundle_dir = app_dir
+                parent_bundle_dir = app_dir.parent
+
+        updater_name = os.path.basename(sys.executable if getattr(sys, 'frozen', False) else sys.argv[0])
 
         log("Updater started.")
         log(f"Update folder: {update_folder}")
         log(f"Main EXE: {main_exe}")
         log(f"Updater EXE: {updater_name}")
-        if PLATFORM_NAME == 'darwin':
+        if PLATFORM_NAME == 'darwin' and bundle_dir:
             log(f"Main App Folder: {bundle_dir}")
 
         # Kill all instances of main app
@@ -212,18 +228,22 @@ def main():
                 try:
                     if PLATFORM_NAME == 'windows':
                         proc_exe = proc.info.get('exe')
-                        if proc_exe and os.path.samefile(os.path.realpath(proc_exe), os.path.realpath(main_exe)):
-                            running = True
-                            break
+                        if proc_exe and os.path.exists(proc_exe) and os.path.exists(main_exe):
+                            if os.path.samefile(os.path.realpath(proc_exe), os.path.realpath(main_exe)):
+                                running = True
+                                break
                     elif PLATFORM_NAME == 'linux':
                         cmdline = proc.info.get('cmdline', [])
-                        if cmdline:
+                        if cmdline and os.path.exists(cmdline[0]) and os.path.exists(main_exe):
                             proc_cmd = os.path.realpath(cmdline[0])
                             if os.path.samefile(proc_cmd, os.path.realpath(main_exe)):
                                 running = True
                                 break
+                except (psutil.NoSuchProcess, psutil.AccessDenied, FileNotFoundError):
+                    continue
                 except Exception as e:
                     log(f"Polling error: {e}")
+
             if not running:
                 break
             time.sleep(0.5)
@@ -231,11 +251,11 @@ def main():
             log("Warning: main executable still running after wait timeout.")
 
         # Delete old version files
-        if PLATFORM_NAME == 'darwin':
+        if PLATFORM_NAME == 'darwin' and bundle_dir and parent_bundle_dir:
             log(f'Attempting to delete {bundle_dir}')
             delete_path(str(bundle_dir))
-            update_folder = os.path.join(sys.argv[1], f"{APP_NAME}-darwin")
-            copy_update_files_darwin(update_folder, str(parent_bundle_dir), updater_name)
+            extracted_update_folder = os.path.join(update_folder, f"{APP_NAME}-darwin")
+            copy_update_files_darwin(extracted_update_folder, str(parent_bundle_dir), updater_name)
 
         else:
             delete_path(main_exe)
@@ -252,8 +272,8 @@ def main():
         if PLATFORM_NAME == 'linux':
             os.chmod(main_exe, 0o755)
             log("Added executable bit")
-    
-        if PLATFORM_NAME == 'darwin':
+
+        if PLATFORM_NAME == 'darwin' and bundle_dir:
             os.chmod(str(bundle_dir), 0o755)
             log("Added executable bit")
             remove_quarantine(str(bundle_dir))

main_unit_tests.py

@@ -25,11 +25,11 @@ main_test.py::test_save_project_actions_pass_correct_ask_parameter
 main_test.py::test_main_window_opens
 main_test.py::test_file_recent_submenus_exist
 main_test.py::test_view_reset_layout
-main_test.py::test_preferences_actions[2D Data Bypass-2d_data_bypass]                                                                                                                      
-main_test.py::test_preferences_actions[Incompatible Save Bypass-incompatible_save_bypass]                                                                                                  
-main_test.py::test_preferences_actions[Missing Events Bypass-missing_events_bypass]                                                                                                        
-main_test.py::test_preferences_actions[Analysis Clearing Bypass-analysis_clearing_bypass]                                                                                                  
-main_test.py::test_preferences_actions[Folding Bypass-folding_bypass]                                                                                                                      
+main_test.py::test_preferences_actions[2D Data Bypass-2d_data_bypass]
+main_test.py::test_preferences_actions[Incompatible Save Bypass-incompatible_save_bypass]
+main_test.py::test_preferences_actions[Missing Events Bypass-missing_events_bypass]
+main_test.py::test_preferences_actions[Analysis Clearing Bypass-analysis_clearing_bypass]
+main_test.py::test_preferences_actions[Folding Bypass-folding_bypass]
 main_test.py::test_preferences_actions[Show Advanced Parameters-advanced_parameters]
 '''
 

package_updates

@@ -0,0 +1,49 @@
+Package                   Version  Latest       Type
+------------------------- -------- ------------ -----
+certifi                   2026.1.4 2026.7.22    wheel
+charset-normalizer        3.4.4    3.5.1        wheel
+decorator                 5.2.1    5.3.1        wheel
+fonttools                 4.61.1   4.64.0       wheel
+h5py                      3.15.1   3.16.0       wheel
+idna                      3.11     3.19         wheel
+joblib                    1.5.3    1.6.0        wheel
+kiwisolver                1.4.9    1.5.1        wheel
+lazy_loader               0.4      0.5          wheel
+lxml                      6.0.2    6.1.2        wheel
+matplotlib                3.10.8   3.11.1       wheel
+mne                       1.11.0   1.12.1       wheel
+mne-connectivity          0.7.0    0.9.0        wheel
+neurokit2                 0.2.12   0.2.13       wheel
+nibabel                   5.3.3    5.4.2        wheel
+nilearn                   0.13.0   0.14.0       wheel
+numpy                     2.4.1    2.5.2        wheel
+packaging                 25.0     26.3         wheel
+pandas                    2.3.3    3.0.5        wheel
+patsy                     1.0.2    1.0.3        wheel
+pillow                    12.1.0   12.3.0       wheel
+pip                       25.3     26.2.1       wheel
+platformdirs              4.5.1    4.11.7       wheel
+pooch                     1.8.2    1.9.0        wheel
+psutil                    7.2.1    7.2.2        wheel
+pyinstaller               6.19.0   6.22.2       wheel
+pyinstaller-hooks-contrib 2026.3   2026.7       wheel
+pyparsing                 3.3.1    3.3.2        wheel
+PySide6                   6.10.1   6.11.2       wheel
+PySide6_Addons            6.10.1   6.11.2       wheel
+PySide6_Essentials        6.10.1   6.11.2       wheel
+pytz                      2025.2   2026.3.post1 wheel
+pyvista                   0.46.5   0.48.4       wheel
+pyvistaqt                 0.11.3   0.12.0       wheel
+requests                  2.32.5   2.34.2       wheel
+scikit-learn              1.8.0    1.9.0        wheel
+scipy                     1.17.0   1.18.1       wheel
+scooby                    0.11.0   0.11.2       wheel
+setuptools                82.0.1   84.0.0       wheel
+shiboken6                 6.10.1   6.11.2       wheel
+statsmodels               0.14.6   0.15.0       wheel
+tqdm                      4.67.1   4.70.0       wheel
+typing_extensions         4.15.0   4.16.0       wheel
+tzdata                    2025.3   2026.3       wheel
+urllib3                   2.6.3    2.7.0        wheel
+vtk                       9.5.2    9.7.0        wheel
+xarray                    2026.1.0 2026.7.0     wheel

plugin_manager.py

@@ -0,0 +1,426 @@
+"""
+Filename: plugin_manager.py
+Description: Manager file for anything plugin related
+Note: Compliant with pylance strict type checking
+
+Author: Tyler de Zeeuw
+License: GPL-3.0
+"""
+
+# Built-in imports
+import io
+import ssl
+import sys
+import json
+import shutil
+import zipfile
+import platform
+import urllib.request
+import importlib.util
+from pathlib import Path
+from typing import Any, cast
+
+# External library imports
+import certifi
+from PySide6.QtCore import QObject, QThread, QUrl, Signal
+from PySide6.QtGui import QDesktopServices
+from PySide6.QtWidgets import QMainWindow, QMenu, QMessageBox
+
+from src.shared.shareddata import APP_NAME, CURRENT_VERSION, PLATFORM_NAME
+
+
+def get_ssl_context() -> ssl.SSLContext:
+    """Returns a cross-platform SSL context configured with certifi's CA bundle."""
+    return ssl.create_default_context(cafile=certifi.where())
+
+
+def get_current_platform_id() -> str:
+    """Returns standardized platform identifier (win_x64, darwin_arm64, etc.)."""
+    sys_name = sys.platform
+    arch = platform.machine().lower()
+
+    if sys_name == "win32":
+        return "win_x64" if "64" in arch or "amd64" in arch else "win_x86"
+    elif sys_name == "darwin":
+        return "darwin_arm64" if "arm" in arch or "aarch64" in arch else "darwin_x64"
+    elif sys_name.startswith("linux"):
+        return "linux_x64" if "64" in arch else "linux_x86"
+    return sys_name
+
+
+def parse_version(v_str: str) -> tuple[int, ...]:
+    """Parses a version string into a comparable integer tuple."""
+    try:
+        return tuple(int(x) for x in v_str.strip().lstrip("v").split("."))
+    except ValueError:
+        return (0, 0, 0)
+
+
+class PluginManager(QObject):
+    """
+    Handles plugin discovery, dynamic loading, menu building,
+    and plugin lifecycle (install, toggle, uninstall).
+    """
+
+    plugins_changed = Signal()
+
+    def __init__(self, main_window: QMainWindow) -> None:
+        super().__init__()
+        self.main_window: QMainWindow = main_window
+        self.plugins_dir: Path = self._resolve_plugins_dir()
+        self.loaded_plugins: list[Any] = []
+        self.current_platform: str = get_current_platform_id()
+        self.current_app_version: tuple[int, ...] = parse_version(str(CURRENT_VERSION))
+
+    def _resolve_plugins_dir(self) -> Path:
+        """Determines the local plugins directory based on execution context."""
+        if PLATFORM_NAME == "darwin":
+            base_dir = Path(sys.executable).parent / "../../.."
+        else:
+            base_dir = Path.cwd()
+
+        plugins_path = (base_dir / "plugins").resolve()
+        plugins_path.mkdir(parents=True, exist_ok=True)
+        return plugins_path
+
+
+    def reload_plugins(self) -> list[Any]:
+        """Scans directory, imports enabled plugins, and updates the main application menu."""
+        self.unload_plugins()
+
+        plugins_dir_str = str(self.plugins_dir)
+        if plugins_dir_str not in sys.path:
+            sys.path.insert(0, plugins_dir_str)
+
+        failed_plugins: list[tuple[str, str]] = []
+
+        for entry in sorted(self.plugins_dir.iterdir(), key=lambda p: p.name.lower()):
+            if entry.name.startswith((".", "__")) or entry.name.endswith(".disabled"):
+                continue
+
+            module_name = ""
+            init_file: Path | None = None
+
+            if entry.is_dir():
+                init_file = entry / "__init__.py"
+                module_name = entry.name
+            elif entry.is_file() and entry.suffix == ".py":
+                init_file = entry
+                module_name = entry.stem
+
+            if not init_file or not init_file.exists():
+                continue
+
+            try:
+                instance = self._import_and_instantiate(module_name, init_file)
+                if instance is not None:
+                    self.loaded_plugins.append(instance)
+            except Exception as e:
+                failed_plugins.append((module_name, str(e)))
+
+        # Report failures after all plugins have attempted to load
+        if failed_plugins:
+            error_details = "\n".join(f"• {name}: {err}" for name, err in failed_plugins)
+            summary_msg = f"One or more plugins failed to load:\n\n{error_details}"
+
+            print(f"[PluginManager] {summary_msg}")
+
+            parent_widget = getattr(self, "main_window", None)
+            QMessageBox.warning(
+                parent_widget,
+                "Plugin Load Failures",
+                summary_msg
+            )
+
+        self.build_plugins_menu()
+        self.plugins_changed.emit()
+        return self.loaded_plugins
+
+    def _import_and_instantiate(self, module_name: str, file_path: Path) -> Any | None:
+        """Dynamically imports a plugin module, attaches its metadata, and returns the Plugin instance."""
+        spec = importlib.util.spec_from_file_location(module_name, file_path)
+        if spec is None or spec.loader is None:
+            raise ImportError(f"Invalid or missing spec for file: {file_path}")
+
+        module = importlib.util.module_from_spec(spec)
+        sys.modules[module_name] = module
+        spec.loader.exec_module(module)
+
+        if hasattr(module, "Plugin") and isinstance(module.Plugin, type):
+            instance = module.Plugin(self.main_window)
+
+            # Attach manifest metadata directly to the plugin instance if plugin.json exists
+            manifest_path = file_path.parent / "plugin.json"
+            if manifest_path.exists():
+                try:
+                    with open(manifest_path, "r", encoding="utf-8") as f:
+                        instance.metadata = json.load(f)
+                        # Override class name property if specified in manifest
+                        if "name" in instance.metadata:
+                            instance.name = instance.metadata["name"]
+                except Exception as e:
+                    print(f"[PluginManager] Could not attach metadata to '{module_name}': {e}")
+
+            return instance
+
+        return None
+
+    def build_plugins_menu(self) -> None:
+        """Constructs or refreshes submenus under the top-level 'Plugins' menu item."""
+        menubar = self.main_window.menuBar()
+
+        # Dynamically locate the existing 'Plugins' menu on the menubar
+        plugins_menu: QMenu | None = None
+        for action in menubar.actions():
+            clean_text = action.text().replace("&", "").strip().lower()
+            if clean_text == "plugins":
+                menu = action.menu()
+                if isinstance(menu, QMenu):
+                    plugins_menu = menu
+                break
+
+        # If it doesn't exist yet, create it
+        if plugins_menu is None:
+            plugins_menu = menubar.addMenu("&Plugins")
+
+        plugins_menu.clear()
+
+        # 1. Populate loaded plugin submenus
+        if not self.loaded_plugins:
+            disabled_action = plugins_menu.addAction("No active plugins")
+            disabled_action.setEnabled(False)
+        else:
+            for plugin in self.loaded_plugins:
+                plugin_name = getattr(plugin, "name", "Unnamed Plugin")
+                plugin_submenu = plugins_menu.addMenu(plugin_name)
+
+                if hasattr(plugin, "register_menu") and callable(plugin.register_menu):
+                    plugin.register_menu(plugin_submenu)
+
+        # 2. Append entry to open Plugin Manager GUI
+        plugins_menu.addSeparator()
+        manager_action = plugins_menu.addAction("Manage Plugins...")
+
+        plugins_gui_func = getattr(self.main_window, "plugins_gui", None)
+        if callable(plugins_gui_func):
+            manager_action.triggered.connect(plugins_gui_func)
+
+    def unload_plugins(self) -> None:
+        """Clears current active plugin instances."""
+        self.loaded_plugins.clear()
+
+    def get_installed_plugins_info(self) -> list[dict[str, Any]]:
+        """Returns metadata for all local plugins in the plugins folder by reading their plugin.json."""
+        results: list[dict[str, Any]] = []
+
+        for entry in sorted(self.plugins_dir.iterdir(), key=lambda p: p.name.lower()):
+            if entry.name.startswith((".", "__")):
+                continue
+
+            is_disabled = entry.name.endswith(".disabled")
+            clean_name = entry.name[:-9] if is_disabled else entry.name
+
+            if entry.is_dir() or (entry.is_file() and (entry.suffix == ".py" or entry.name.endswith(".py.disabled"))):
+                if entry.is_file() and entry.stem in ("__init__", "__init__.py"):
+                    continue
+
+                # Load local plugin.json if present
+                manifest: dict[str, Any] = {}
+                manifest_path = (entry / "plugin.json") if entry.is_dir() else None
+
+                if manifest_path and manifest_path.exists():
+                    try:
+                        with open(manifest_path, "r", encoding="utf-8") as f:
+                            manifest = json.load(f)
+                    except Exception as e:
+                        print(f"[PluginManager] Warning: Failed to read manifest for '{entry.name}': {e}")
+
+                display_name = manifest.get("name", clean_name.removesuffix(".py"))
+                version = manifest.get("version", "1.0.0")
+                description = manifest.get("description", "")
+                author = manifest.get("author", "Unknown")
+
+                results.append({
+                    "id": manifest.get("id", clean_name),
+                    "name": display_name,
+                    "version": version,
+                    "description": description,
+                    "author": author,
+                    "path": entry,
+                    "is_disabled": is_disabled,
+                    "manifest": manifest,
+                })
+
+        return results
+
+    def toggle_plugin_state(self, plugin_path: Path) -> None:
+        """Swaps a plugin between enabled and disabled by renaming with/without '.disabled'."""
+        if not plugin_path.exists():
+            return
+
+        if plugin_path.name.endswith(".disabled"):
+            new_path = plugin_path.with_name(plugin_path.name.removesuffix(".disabled"))
+        else:
+            new_path = plugin_path.with_name(f"{plugin_path.name}.disabled")
+
+        plugin_path.rename(new_path)
+        self.reload_plugins()
+
+    def uninstall_plugin(self, plugin_path: Path) -> None:
+        """Deletes a plugin directory or file from disk."""
+        if not plugin_path.exists():
+            return
+
+        if plugin_path.is_dir():
+            shutil.rmtree(plugin_path)
+        else:
+            plugin_path.unlink()
+
+        self.reload_plugins()
+
+    def fetch_remote_repositories(self, repo_urls: list[str]) -> tuple[list[dict[str, Any]], bool]:
+        """Fetches remote plugin metadata from repository URLs."""
+        aggregated: list[dict[str, Any]] = []
+        failed_count = 0
+
+        for url in repo_urls:
+            try:
+                req = urllib.request.Request(
+                    url,
+                    headers={"User-Agent": f"{APP_NAME}-PluginManager"},
+                )
+                with urllib.request.urlopen(req, timeout=5, context=get_ssl_context()) as response:
+                    if response.status == 200:
+                        raw_data = response.read().decode("utf-8")
+                        data = json.loads(raw_data)
+                        if isinstance(data, list):
+                            aggregated.extend(cast(list[Any], data))
+                    else:
+                        failed_count += 1
+            except Exception:
+                failed_count += 1
+
+        all_failed = failed_count == len(repo_urls) and len(repo_urls) > 0
+        return aggregated, all_failed
+
+    def install_plugin_from_url(self, download_url: str, plugin_id: str = "") -> Path:
+        """
+        Downloads a single-folder ZIP archive and extracts it directly into plugins/.
+        """
+        req = urllib.request.Request(
+            download_url,
+            headers={"User-Agent": f"{APP_NAME}-PluginManager"},
+        )
+
+        with urllib.request.urlopen(req, timeout=15, context=get_ssl_context()) as response:
+            if response.status != 200:
+                raise RuntimeError(f"Download failed with HTTP status code {response.status}")
+
+            zip_bytes = response.read()
+
+        with zipfile.ZipFile(io.BytesIO(zip_bytes)) as zip_ref:
+            zip_ref.extractall(self.plugins_dir)
+
+        self.reload_plugins()
+        return self.plugins_dir
+
+    def open_plugins_directory(self) -> bool:
+        """Opens the local plugins folder in the operating system's file manager."""
+        if self.plugins_dir.exists():
+            return QDesktopServices.openUrl(QUrl.fromLocalFile(str(self.plugins_dir)))
+        return False
+
+    def check_for_updates(self, repo_urls: list[str]) -> list[dict[str, Any]]:
+        """
+        Fetches remote repositories and compares server plugin versions
+        against installed plugins, returning the installed plugins list
+        enriched with update metadata.
+        """
+        installed_plugins = self.get_installed_plugins_info()
+        remote_data, _ = self.fetch_remote_repositories(repo_urls)
+
+        # Index remote plugins by their ID (fallback to name if id is missing)
+        remote_map: dict[str, dict[str, Any]] = {}
+        for remote_plugin in remote_data:
+            plugin_id = remote_plugin.get("id") or remote_plugin.get("name")
+            if plugin_id:
+                remote_map[str(plugin_id)] = remote_plugin
+
+        # Compare versions and annotate each installed plugin dictionary
+        for plugin in installed_plugins:
+            plugin_id = str(plugin.get("id", ""))
+            local_version_str = str(plugin.get("version", "0.0.0"))
+            local_tuple = parse_version(local_version_str)
+
+            remote_plugin = remote_map.get(plugin_id)
+            if remote_plugin:
+                remote_version_str = str(remote_plugin.get("version", "0.0.0"))
+                remote_tuple = parse_version(remote_version_str)
+
+                if remote_tuple > local_tuple:
+                    plugin["update_available"] = True
+                    plugin["remote_version"] = remote_version_str
+                    plugin["download_url"] = str(remote_plugin.get("download_url", ""))
+                else:
+                    plugin["update_available"] = False
+                    plugin["remote_version"] = remote_version_str
+                    plugin["download_url"] = ""
+            else:
+                plugin["update_available"] = False
+                plugin["remote_version"] = None
+                plugin["download_url"] = ""
+
+        return installed_plugins
+
+
+class StartupUpdateWorker(QThread):
+    updates_checked = Signal(list)
+
+    def __init__(self, manager: Any, repo_urls: list[str]) -> None:
+        super().__init__()
+        self.manager = manager
+        self.repo_urls = repo_urls
+
+    def run(self) -> None:
+        try:
+            print("[StartupWorker] Starting background update check...")
+            installed_plugins = self.manager.get_installed_plugins_info()
+            print(f"[StartupWorker] Found {len(installed_plugins)} installed local plugins.")
+
+            remote_data, all_failed = self.manager.fetch_remote_repositories(self.repo_urls)
+            print(f"[StartupWorker] Fetch remote complete. Failed: {all_failed}, Items fetched: {len(remote_data)}")
+
+            if all_failed or not remote_data:
+                print("[StartupWorker] Aborting: Remote fetch failed or returned empty data.")
+                return
+
+            remote_map: dict[str, dict[str, Any]] = {}
+            for raw_plugin in remote_data:
+                if isinstance(raw_plugin, dict):
+                    remote_plugin = cast(dict[str, Any], raw_plugin)
+
+                    plugin_id = remote_plugin.get("id") or remote_plugin.get("name")
+                    if isinstance(plugin_id, str):
+                        remote_map[plugin_id] = remote_plugin
+
+            outdated_plugins: list[dict[str, Any]] = []
+            for plugin in installed_plugins:
+                plugin_id = str(plugin.get("id", ""))
+                local_version_str = str(plugin.get("version", "0.0.0"))
+                local_tuple = parse_version(local_version_str)
+
+                remote_plugin = remote_map.get(plugin_id)
+                if remote_plugin:
+                    remote_version_str = str(remote_plugin.get("version", "0.0.0"))
+                    remote_tuple = parse_version(remote_version_str)
+                    print(f"[StartupWorker] Comparing '{plugin.get('name')}': Local v{local_version_str} vs Remote v{remote_version_str}")
+
+                    if remote_tuple > local_tuple:
+                        plugin["remote_version"] = remote_version_str
+                        plugin["download_url"] = str(remote_plugin.get("download_url", ""))
+                        outdated_plugins.append(plugin)
+
+            print(f"[StartupWorker] Outdated plugins found: {len(outdated_plugins)}")
+            self.updates_checked.emit(outdated_plugins)
+        except Exception as e:
+            print(f"[StartupWorker] Error during startup update check: {e}")

project_manager.py

@@ -15,6 +15,7 @@ import copy
 import pickle
 import concurrent
 import configparser
+import concurrent.futures
 from pathlib import Path, PurePosixPath
 from typing import TYPE_CHECKING, Any, List, Optional, Union
 
@@ -37,6 +38,23 @@ if TYPE_CHECKING:
     from main import MainApplication
 
 
+class LoadProjectThread(QThread):
+    finished_signal = Signal(object)  # Emits the loaded project data dictionary
+    error_signal = Signal(str)  # Emits the error message string
+
+    def __init__(self, filename: str) -> None:
+        super().__init__()
+        self.filename = filename
+
+    def run(self) -> None:
+        try:
+            with open(self.filename, "rb") as f:
+                project_data = pickle.load(f)
+            self.finished_signal.emit(project_data)
+        except Exception as e:
+            self.error_signal.emit(str(e))
+
+
 class SaveProjectThread(QThread):
     finished_signal = Signal(str)
     error_signal = Signal(str)
@@ -55,6 +73,25 @@ class SaveProjectThread(QThread):
             self.error_signal.emit(str(e))
 
 
+class LoadingOverlay(QDialog):
+    def __init__(self, parent: Optional[QWidget] = None) -> None:
+        super().__init__(parent)
+        self.setWindowFlags(Qt.WindowType.Dialog | Qt.WindowType.FramelessWindowHint)
+        self.setModal(True)
+        self.setWindowModality(Qt.WindowModality.ApplicationModal)
+        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
+
+        layout = QVBoxLayout()
+        layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
+
+        label = QLabel("Loading Project…")
+        label.setStyleSheet(
+            "font-size: 18px; color: white; background-color: rgba(0,0,0,150);"
+            " padding: 20px; border-radius: 10px;"
+        )
+        layout.addWidget(label)
+        self.setLayout(layout)
+
 
 class SavingOverlay(QDialog):
     def __init__(self, parent: Optional[QWidget] = None) -> None:
@@ -63,7 +100,7 @@ class SavingOverlay(QDialog):
         self.setModal(True)
         self.setWindowModality(Qt.WindowModality.ApplicationModal)
         self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
-        
+
         layout = QVBoxLayout()
         layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
 
@@ -71,7 +108,7 @@ class SavingOverlay(QDialog):
         label.setStyleSheet("font-size: 18px; color: white; background-color: rgba(0,0,0,150); padding: 20px; border-radius: 10px;")
         layout.addWidget(label)
         self.setLayout(layout)
-        
+
 
 class ProjectManager:
     """
@@ -107,20 +144,117 @@ class ProjectManager:
     # =========================================================================
     # File & Folder Opening Dialogs
     # =========================================================================
+
+    def is_valid_snirf(self, path: str) -> bool:
+        """Fast header check to verify HDF5/SNIRF signature and ignore corrupt/shadow files."""
+        try:
+            if os.path.getsize(path) < 8:
+                return False
+            with open(path, "rb") as f:
+                return f.read(8) == b"\x89HDF\r\n\x1a\n"
+        except Exception:
+            return False
+
     def open_file_dialog(self) -> None:
         """Opens dialog to pick a single .snirf file."""
         file_path, _ = QFileDialog.getOpenFileName(
             self.app, "Open File", "", "SNIRF Files (*.snirf);;All Files (*)"
         )
-        if file_path:
-            self._load_files_into_pipeline([os.path.normpath(file_path)])
+        if not file_path:
+            return
+
+        norm_path = os.path.normpath(file_path)
+        filename = os.path.basename(norm_path)
+
+        # 1. Check specifically for macOS shadow files
+        if filename.startswith("._"):
+            QMessageBox.warning(
+                self.app,
+                "Invalid SNIRF File",
+                f"'{filename}' is a macOS system shadow file (Apple Double resource fork), not a actual data file."
+            )
+            return
+
+        # 2. Check for general header validity / corruption
+        if not self.is_valid_snirf(norm_path):
+            QMessageBox.warning(
+                self.app,
+                "Invalid SNIRF File",
+                f"'{filename}' is not a valid SNIRF file or has a corrupted header."
+            )
+            return
+
+        self._load_files_into_pipeline([norm_path])
 
     def open_folder_dialog(self)-> None:
         """Recursively finds all .snirf files in a selected directory."""
         folder_path = QFileDialog.getExistingDirectory(self.app, "Select Folder", "")
-        if folder_path:
-            snirf_files = [os.path.normpath(str(f)) for f in Path(folder_path).rglob("*.snirf")]
-            self._load_files_into_pipeline(snirf_files)
+        if not folder_path:
+            return
+
+        # Automatically filter out shadow files and invalid headers in batch mode
+        snirf_files = [
+            os.path.normpath(str(f))
+            for f in Path(folder_path).rglob("*.snirf")
+            if self.is_valid_snirf(str(f))
+        ]
+
+        if not snirf_files:
+            QMessageBox.information(
+                self.app,
+                "No Valid Files",
+                "No valid .snirf files were found in the selected directory."
+            )
+            return
+
+        self._load_files_into_pipeline(snirf_files)
+
+    def load_dropped_files(self, file_paths: List[str]) -> None:
+        """Public entry point for handling files or folders dropped onto the UI."""
+        if not file_paths:
+            return
+
+        # 1. Single file drop: Give explicit feedback like open_file_dialog
+        if len(file_paths) == 1:
+            norm_path = os.path.normpath(file_paths[0])
+            filename = os.path.basename(norm_path)
+
+            if filename.startswith("._"):
+                QMessageBox.warning(
+                    self.app,
+                    "Invalid SNIRF File",
+                    f"'{filename}' is a macOS system shadow file (Apple Double resource fork), not an actual data file."
+                )
+                return
+
+            if not self.is_valid_snirf(norm_path):
+                QMessageBox.warning(
+                    self.app,
+                    "Invalid SNIRF File",
+                    f"'{filename}' is not a valid SNIRF file or has a corrupted header."
+                )
+                return
+
+            valid_files = [norm_path]
+
+        # 2. Batch drop: Silently filter out shadow/corrupt files like open_folder_dialog
+        else:
+            valid_files = [
+                os.path.normpath(p)
+                for p in file_paths
+                if self.is_valid_snirf(os.path.normpath(p))
+            ]
+
+            if not valid_files:
+                QMessageBox.information(
+                    self.app,
+                    "No Valid Files",
+                    "None of the dropped items were valid .snirf files."
+                )
+                return
+
+        # Delegate to internal pipeline
+        self._load_files_into_pipeline(valid_files)
 
     def _load_files_into_pipeline(self, file_paths: List[str]) -> None:
         """Loads .snirf files into UI using chunked batches and background workers."""
@@ -135,7 +269,6 @@ class ProjectManager:
         # 2. Track this session to prevent ghost updates
         if not hasattr(app, "loading_session_id"):
             app.loading_session_id = 0
-        app.loading_session_id += 1
         current_session = app.loading_session_id
 
         # 3. Setup internal tracking if not exists
@@ -146,8 +279,11 @@ class ProjectManager:
         if not hasattr(app, "metadata_cache"):
             app.metadata_cache = {}
 
-        # Filter out files already in the UI to avoid duplicates
-        new_files = [p for p in file_paths if p not in app.selected_paths]
+        # Filter out duplicates AND non-SNIRF files (including macOS ._ shadow files)
+        new_files = [
+            p for p in file_paths
+            if p not in app.selected_paths and self.is_valid_snirf(p)
+        ]
         if not new_files:
             return
 
@@ -241,12 +377,31 @@ class ProjectManager:
             self.load_project(filename)
 
     def load_project(self, filename: str) -> None:
-        """Loads a .flare project file into the application."""
+        """Triggers asynchronous loading of a .flare project file."""
+        app = self.app
+
+        # 1. Show the custom loading overlay matching your saver design
+        self.loading_overlay = LoadingOverlay(app)
+        self.loading_overlay.resize(app.size())
+        self.loading_overlay.move(app.pos())
+        self.loading_overlay.show()
+
+        # 2. Fire up the background thread for pickle loading
+        self.loader_thread = LoadProjectThread(filename)
+        self.loader_thread.finished_signal.connect(
+            lambda data: self._handle_loaded_data(filename, data)
+        )
+        self.loader_thread.error_signal.connect(self._handle_load_error)
+        self.loader_thread.start()
+
+    def _handle_loaded_data(self, filename: str, data: dict) -> None:
+        # Close overlay
+        if hasattr(self, "loading_overlay"):
+            self.loading_overlay.close()
+            self.loading_overlay.deleteLater()
+
         app = self.app
         try:
-            with open(filename, "rb") as f:
-                data = pickle.load(f)
-
             checks = [
                 ("version", "<=1.1.7"),
                 ("file_metadata", "<=1.2.2"),
@@ -260,7 +415,7 @@ class ProjectManager:
                         f"This project was saved in an earlier version of {APP_NAME.upper()} ({ver_str}) "
                         "and is potentially not compatible with this version. "
                     )
-                    if getattr(app, "incompatible_save_bypass", False):
+                    if getattr(app, "processing_incompatible_save_bypass", False):
                         QMessageBox.warning(
                             app, f"Warning - {APP_NAME.upper()}", msg + "Attempting load."
                         )
@@ -340,16 +495,19 @@ class ProjectManager:
             if hasattr(app, "button3"):
                 app.button3.setVisible(has_data)
 
-            
             self.add_to_recent_projects(os.path.normpath(filename))
-
-            # Reset baselines cleanly
             self.reset_all_dirty_states()
 
             QMessageBox.information(app, "Loaded", f"Project loaded from:\n{filename}")
 
         except Exception as e:
-            QMessageBox.critical(app, "Error", f"Failed to load project:\n{e}")
+            QMessageBox.critical(app, "Error", f"Failed to process loaded project data:\n{e}")
+
+    def _handle_load_error(self, error_msg: str) -> None:
+        if hasattr(self, "loading_overlay"):
+            self.loading_overlay.close()
+            self.loading_overlay.deleteLater()
+        QMessageBox.critical(self.app, "Error", f"Failed to read project file:\n{error_msg}")
 
     # =========================================================================
     # Project Saving (Save / Save As)
@@ -719,7 +877,7 @@ def _get_bids_demographics(snirf_path: str) -> dict[str, str]:
         return {}
 
     def _row_to_dict(row: pd.Series) -> dict[str, str]:
-        result = {}
+        result: dict[str, str] = {}
         for field in fields:
             if field not in row:
                 continue
@@ -765,7 +923,6 @@ def _get_bids_demographics(snirf_path: str) -> dict[str, str]:
     return {}
 
 
-
 def extract_metadata_worker(file_name: str) -> dict[str, Any]:
     """Runs in the separate worker process. Returns a clean dict."""
 
@@ -823,7 +980,7 @@ def extract_metadata_worker(file_name: str) -> dict[str, Any]:
         if "hand" in demographics:
             snirf_info["BIDS - Handedness"] = demographics["hand"]
         return snirf_info
-    
+
     except Exception as e:
         print(f"Worker safely caught failure on {file_name}: {str(e)}")
         return {'status': 'error', 'reason': str(e)}

pylance_progress

@@ -1,7 +1,6 @@
-src\analysis\participantfoldchannels.py  158
-src\shared\flaresbasewidget.py  1001+
-src\window\updateevents.py  83
-flares.py  1001+
-main_unit_tests.py  153
-main.py  691
-project_manager.py 113
+src\analysis\participantfoldchannels.py  84
+src\shared\flaresbasewidget.py  1155
+flares.py  2900
+main_unit_tests.py  152
+main.py  732
+project_manager.py 109

src/analysis/exporttocsv.py

@@ -12,6 +12,7 @@ import os
 from typing import Any
 
 # External library imports
+from mne import Epochs
 from pandas import DataFrame
 
 from mne.io.base import BaseRaw
@@ -25,8 +26,9 @@ from src.shared.shareddata import APP_NAME
 
 class ExportToCSVWidget(CSVUIMixin, FlaresBaseWidget):
     def __init__(
-        self, 
-        haemo_dict: dict[str, BaseRaw], 
+        self,
+        haemo_dict: dict[str, BaseRaw],
+        epochs_dict: dict[str, Epochs],
         cha_dict: dict[str, DataFrame],
         df_ind_dict: dict[str, DataFrame],
         design_matrix_dict: dict[str, DataFrame],
@@ -36,10 +38,11 @@ class ExportToCSVWidget(CSVUIMixin, FlaresBaseWidget):
         fir_feature_dict: dict[str, dict[str, Any]],
         qc_dict: dict[str, dict[str, Any]],
     ) -> None:
-        
+
         super().__init__("ExportToCSV")
         self.setWindowTitle(f"Export To CSV Viewer - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
+        self.epochs_dict = epochs_dict
         self.cha_dict = cha_dict
         self.df_ind_dict = df_ind_dict
         self.design_matrix = design_matrix_dict
@@ -48,20 +51,19 @@ class ExportToCSVWidget(CSVUIMixin, FlaresBaseWidget):
         self.config_dict = config_dict
         self.fir_feature_dict = fir_feature_dict
         self.qc_dict = qc_dict
-        
+
         self.setup_csv_ui(["0 (Export Data to CSV)", "1 (CSV for SPARKS)", "2 (Export Configuration to CSV)", "3 (Paragraph of Configuration)", "4 (Export FIR Waveform Features to CSV)",
-            "5 (Export Quality Control Metrics to CSV)",
-            "6 (Export Master Consolidated Matrix [All Participants into 1 CSV])"
+            "5 (Export Quality Control Metrics to CSV)", "6 (Export Master Consolidated Matrix [All Participants into 1 CSV])"
         ])
-        
-    
+
+
     def process_request(self):
         selected_display_names = self._get_checked_items(self.participant_dropdown)
         selected_file_paths: list[str] = []
         for display_name in selected_display_names:
             for fp, short_label in self.participant_map.items():
                 expected_display = f"{short_label} ({os.path.basename(fp)})"
-                if display_name == expected_display: 
+                if display_name == expected_display:
                     selected_file_paths.append(fp)
                     break
 
@@ -74,7 +76,7 @@ class ExportToCSVWidget(CSVUIMixin, FlaresBaseWidget):
             return
 
         output_dir = QFileDialog.getExistingDirectory(self, "Select Output Folder for CSV Exports")
-        
+
         if not output_dir:
             print("Export cancelled: No folder selected.")
             return
@@ -120,78 +122,78 @@ class ExportToCSVWidget(CSVUIMixin, FlaresBaseWidget):
                         magic_string = self.gen_magic_str(first_params)
                         self.placeholder_label.setText(magic_string)
 
-                    # elif idx == 4:
-                    #     # FIR Waveform Features Export
-                    #     fir_data = self.fir_feature_dict.get(file_path)
-                    #     if fir_data and isinstance(fir_data, dict):
-                    #         names = fir_data.get("feature_names", [])
-                    #         vals = fir_data.get("features", [])
-                    #         chans = fir_data.get("feature_channels", [])
+                    elif idx == 4:
+                        # FIR Waveform Features Export
+                        fir_data = self.fir_feature_dict.get(file_path)
+                        if fir_data:
+                            names = fir_data.get("feature_names", [])
+                            vals = fir_data.get("features", [])
+                            chans = fir_data.get("feature_channels", [])
 
-                    #         fir_df = DataFrame({
-                    #             "Feature_Name": names,
-                    #             "Channel": chans if len(chans) == len(names) else ["N/A"] * len(names),
-                    #             "Value": vals
-                    #         })
-                    #         save_path = os.path.join(output_dir, f"{base_filename}_fir_features.csv")
-                    #         fir_df.to_csv(save_path, index=False)
-                    #         success_count += 1
+                            fir_df = DataFrame({
+                                "Feature_Name": names,
+                                "Channel": chans if len(chans) == len(names) else ["N/A"] * len(names),
+                                "Value": vals
+                            })
+                            save_path = os.path.join(output_dir, f"{base_filename}_fir_features.csv")
+                            fir_df.to_csv(save_path, index=False)
+                            success_count += 1
 
-                    # elif idx == 5:
-                    #     # Quality Control (QC) Metrics Export
-                    #     qc_data = self.qc_dict.get(file_path)
-                    #     if qc_data and isinstance(qc_data, dict):
-                    #         qc_df = DataFrame(list(qc_data.items()), columns=["Metric", "Value"])
-                    #         save_path = os.path.join(output_dir, f"{base_filename}_qc_metrics.csv")
-                    #         qc_df.to_csv(save_path, index=False)
-                    #         success_count += 1
+                    elif idx == 5:
+                        # Quality Control (QC) Metrics Export
+                        qc_data = self.qc_dict.get(file_path)
+                        if qc_data and isinstance(qc_data, dict):
+                            qc_df = DataFrame(list(qc_data.items()), columns=["Metric", "Value"])
+                            save_path = os.path.join(output_dir, f"{base_filename}_qc_metrics.csv")
+                            qc_df.to_csv(save_path, index=False)
+                            success_count += 1
 
-                    # elif idx == 6:
-                    #     # Master Consolidated Matrix (1 single CSV combining all selected participants)
-                    #     save_path = os.path.join(output_dir, f"{APP_NAME}_master_consolidated.csv")
-                    #     if not os.path.exists(save_path):
-                    #         master_rows: list[dict[str, Any]] = []
-                    #         for fp in selected_file_paths:
-                    #             abs_path = os.path.abspath(fp)
-                    #             grp = self.group_dict.get(fp, "Unknown")
-                    #             row: dict[str, Any] = {"Participant": abs_path, "Group": grp}
+                    elif idx == 6:
+                        # Master Consolidated Matrix (1 single CSV combining all selected participants)
+                        save_path = os.path.join(output_dir, f"{APP_NAME}_master_consolidated.csv")
+                        if not os.path.exists(save_path):
+                            master_rows: list[dict[str, Any]] = []
+                            for fp in selected_file_paths:
+                                abs_path = os.path.abspath(fp)
+                                grp = self.group_dict.get(fp, "Unknown")
+                                row: dict[str, Any] = {"Participant": abs_path, "Group": grp}
 
-                    #             # QC Metrics
-                    #             qc_info = self.qc_dict.get(fp, {})
-                    #             if isinstance(qc_info, dict):
-                    #                 for mk, mv in qc_info.items():
-                    #                     row[f"QC_{mk}"] = mv
+                                # QC Metrics
+                                qc_info = self.qc_dict.get(fp, {})
+                                if isinstance(qc_info, dict):
+                                    for mk, mv in qc_info.items():
+                                        row[f"QC_{mk}"] = mv
 
-                    #             # FIR Features
-                    #             fir_info = self.fir_feature_dict.get(fp, {})
-                    #             print("1")
-                    #             if isinstance(fir_info, dict):
-                    #                 print("2")
-                    #                 f_names = fir_info.get("feature_names", [])
-                    #                 f_vals = fir_info.get("features", [])
-                    #                 print("3")
-                    #                 if len(f_names) == len(f_vals):
-                    #                     print("4")
-                    #                     for fn, fv in zip(f_names, f_vals):
-                    #                         row[f"FIR_{fn}"] = fv
+                                # FIR Features
+                                fir_info = self.fir_feature_dict.get(fp, {})
+                                print("1")
+                                if isinstance(fir_info, dict):
+                                    print("2")
+                                    f_names = fir_info.get("feature_names", [])
+                                    f_vals = fir_info.get("features", [])
+                                    print("3")
+                                    if len(f_names) == len(f_vals):
+                                        print("4")
+                                        for fn, fv in zip(f_names, f_vals):
+                                            row[f"FIR_{fn}"] = fv
 
-                    #             master_rows.append(row)
+                                master_rows.append(row)
 
-                    #         if master_rows:
-                    #             df_master = DataFrame(master_rows)
-                    #             df_master.to_csv(save_path, index=False)
-                    #             success_count += 1
+                            if master_rows:
+                                df_master = DataFrame(master_rows)
+                                df_master.to_csv(save_path, index=False)
+                                success_count += 1
 
                     else:
                         print(f"No method defined for index {idx}")
-                
+
                 except Exception as e:
                     print(f"Failed to export {file_path} (Type {idx}): {e}")
 
         # 4. Final Notification
         if success_count > 0:
             QMessageBox.information(self, "Export Complete", f"Successfully saved {success_count} CSV files to:\n{output_dir}")
-            
+
             # # If SPARKS export was included, show the Event Window once at the end
             # if 1 in selected_indexes:
             #     win = UpdateEventsWindow(
@@ -203,62 +205,62 @@ class ExportToCSVWidget(CSVUIMixin, FlaresBaseWidget):
 
 
     def gen_magic_str(self, all_params: dict[str, str]) -> str:
-            
+
             magic_str = "To start, the data was loaded into the application. "
             if all_params['DOWNSAMPLE']:
                 magic_str += f"The data was downsampled to {all_params['DOWNSAMPLE_FREQUENCY']}hz. "
             else:
                 magic_str += "The data was not downsampled and was retained at its original sampling frequency. "
-    
+
             if all_params['TRIM']:
                 magic_str += f"The data was then trimmed to only keep {all_params['SECONDS_TO_KEEP']} seconds before the first event, as the earlier data with no events would not be needed. "
             else:
                 magic_str += "The data was not trimmed and was retained at its original length. "
-    
+
             if all_params['OPTODE_PLACEMENT']:
                 magic_str += f"A visualization check of the optode locations in 3D space was performed to ensure that they were at the correct location. "
-    
+
             if all_params['SHORT_CHANNELS']:
                 magic_str += f"A short channel(s) was specified with the maximum length of a short channel being {all_params['SHORT_CHANNELS_THRESHOLD']} metres. Channels that were over this distance but under {all_params['LONG_CHANNELS_THRESHOLD']} metres were retained. "
             else:
                 magic_str += f"No short channel was specified. Channels between the lengths of {all_params['SHORT_CHANNELS_THRESHOLD']} and {all_params['LONG_CHANNELS_THRESHOLD']} meters were used with all other channles being discarded. "
-    
+
             if all_params['HEART_RATE']:
                 magic_str += f"The heart rate of the participant was attempted to be calculated. {all_params['SECONDS_TO_STRIP_HR']} seconds were ignored from the start of the file to avoid motion artifacts. "
                 magic_str += f"The heart rate had hard limits of {all_params['MAX_LOW_HR']} to {all_params['MAX_HIGH_HR']} and was smoothed across {all_params['SMOOTHING_WINDOW_HR']} samples. "
             else:
                 magic_str += "The heart rate of the participants was not attempted to be calculated. "
-    
+
             if all_params['SCI']:
                 magic_str += f"The Scalp Coupling Index was calculated over {all_params['SCI_TIME_WINDOW']} second windows. The threshold value was {all_params['SCI_THRESHOLD']}. "
             else:
                 magic_str += "Scalp Coupling Index was not used. "
-    
+
             if all_params['SNR']:
                 magic_str += f"The Signal to Noise Ratio was calculated. The threshold value was set to {all_params['SNR_THRESHOLD']}db. "
             else:
                 magic_str += "The Signal to Noise Ratio was not used. "
-    
+
             if all_params['PSP']:
                 magic_str += f"Peak Spectral Power was calculated over {all_params['PSP_TIME_WINDOW']} second windows. The threshold value was {all_params['PSP_THRESHOLD']}. "
             else:
                 magic_str += "Peak Spectral Power was not used. "
-    
+
             if all_params['COEFF_VAR']:
                 magic_str += f"The Coefficient of Variation was calculated. The threshold value was set to {all_params['COEFF_VAR_THRESHOLD']}. "
             else:
                 magic_str += "The Coefficient of Variation was not used. "
-    
+
             if all_params['MAD']:
                 magic_str += f"Median Absolute Deviation was calculated. The threshold value was set to {all_params['MAD_THRESHOLD']}. "
             else:
                 magic_str += "Median Absolute Deviation was not used. "
-    
+
             if all_params['PSD_NOISE']:
                 magic_str += f"Power Spectral Density Noise was calculated with a target frequency divisor of {all_params['TARGET_FREQ_DIV']} and a decibal limit of {all_params['DB_LIMIT']}. "
             else:
                 magic_str += f"Power Spectral Density Noise was not used. "
-    
+
             magic_str += "More coming soon."
 
             return magic_str

src/analysis/intergroupbrainimage.py

@@ -68,13 +68,13 @@ DESCRIPTION = """\n1. Group Contrast 2D/3D (plot_2d_3d_contrasts_between_groups)
 class InterGroupBrainImageWidget(InterGroupUIMixin, FlaresBaseWidget):
     def __init__(
         self,
-        haemo_dict: dict[str, BaseRaw], 
+        haemo_dict: dict[str, BaseRaw],
         df_ind_dict: dict[str, DataFrame],
         design_matrix_dict: dict[str, DataFrame],
         contrast_results_dict: dict[str, dict[str, Any]],
         group_dict: dict[str, str],
     ) -> None:
-        
+
         super().__init__("InterGroupBrainImage")
         self.setWindowTitle(f"Inter-Group Brain & Image Viewer - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
@@ -87,7 +87,7 @@ class InterGroupBrainImageWidget(InterGroupUIMixin, FlaresBaseWidget):
 
 
     def process_request(self):
-              
+
         request = self.get_common_request_data(PARAMETERIZED_INDEXES)
         if request is None:
             return
@@ -122,7 +122,7 @@ class InterGroupBrainImageWidget(InterGroupUIMixin, FlaresBaseWidget):
         print("contrast_df_b empty?", contrast_df_b.empty)
 
         all_raw_objs = [self.haemo_dict.get(fp) for fp in all_selected_paths if self.haemo_dict.get(fp)]
-        
+
         if len(all_raw_objs) > 1:
             processed_raw = aggregate_fnirs_group_geometry(all_raw_objs)
         elif len(all_raw_objs) == 1 and all_raw_objs[0] is not None:

src/analysis/intergroupstats.py

@@ -125,7 +125,7 @@ PARAMETERIZED_INDEXES: dict[int, list[dict[str, Any]]] = {
         },
     ],
 }
-        
+
 
 DESCRIPTION = """0. Raw ROI Comparison (run_inter_group_second_level_analysis)
 \nCompares one ROI's raw response magnitude between two independent groups (e.g. control vs. target) for a given condition, using Welch's t-test. A significant result means the two populations differ in this ROI's response magnitude for this condition. It does not tell you whether that difference is a real, localized, task-specific effect or a generic between-population difference - different overall vascular reactivity, arousal, or skull/scalp optical properties can produce the exact same statistical signature, and two independently recruited groups (especially patients vs. healthy controls) are considerably more likely to differ this way than two subsets of one study population.
@@ -145,8 +145,8 @@ DESCRIPTION = """0. Raw ROI Comparison (run_inter_group_second_level_analysis)
 class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
 
     def __init__(
-        self, 
-        haemo_dict: dict[str, BaseRaw], 
+        self,
+        haemo_dict: dict[str, BaseRaw],
         cha_dict: dict[str, DataFrame],
         df_ind_dict: dict[str, DataFrame],
         design_matrix_dict: dict[str, DataFrame],
@@ -154,7 +154,7 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
         roi_channel_map_dict: dict[str, dict[str, str]],
         group_dict: dict[str, str],
     ) -> None:
-        
+
         super().__init__("InterGroupStats")
         self.setWindowTitle(f"Inter-Group Stats Viewer - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
@@ -166,7 +166,7 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
         self.group_dict = group_dict
 
         self.setup_inter_group_ui(["0 (Raw ROI Comparison)", "1 (Laterality Comparison)", "2 (Contrast Comparison)",], placeholder_text=DESCRIPTION)
-        
+
 
     def process_request(self):
         request = self.get_common_request_data(PARAMETERIZED_INDEXES, self.df_ind_dict, self.contrast_results_dict)
@@ -185,7 +185,7 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
 
         valid_chas = [df for df in self.cha_dict.values() if not df.empty]
         cha_combined = pd.concat(valid_chas, ignore_index=True) if valid_chas else pd.DataFrame()
-        
+
         sample_path = file_paths_a[0]
         p_haemo = self.haemo_dict.get(sample_path)
 
@@ -226,7 +226,7 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                     print("Laterality comparison requires a specific event/condition "
                           "to be selected first.")
                     continue
- 
+
                 params = param_values.get(idx, {})
                 p_threshold = params.get("p_threshold", 0.05)
                 min_subjects = params.get("min_subjects", 3)
@@ -234,36 +234,36 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                 target_chroma = params.get("target_chroma", "hbo")
                 roi_a: str = params.get("roi_a", "").strip()
                 roi_b: str = params.get("roi_b", "").strip()
- 
+
                 if not roi_a or not roi_b:
                     print("Both a contralateral and ipsilateral ROI name must be specified.")
                     continue
 
                 if correction_method == "None":
                     correction_method = None
- 
+
                 # Build each group's dataframe directly from the dict using
                 # the file-path lists as keys - no ID cleaning/matching needed.
                 def _build_group_df(
-                    file_paths: list[str], 
+                    file_paths: list[str],
                     dict_source: dict[str, DataFrame]
                 ) -> DataFrame:
-                    
+
                     valid_dfs = [
                         dict_source[fp] for fp in file_paths
                         if fp in dict_source and not dict_source[fp].empty
                     ]
 
                     return pd.concat(valid_dfs, ignore_index=True) if valid_dfs else pd.DataFrame()
- 
+
 
                 df_roi_a = _build_group_df(file_paths_a, self.df_ind_dict)
                 df_roi_b = _build_group_df(file_paths_b, self.df_ind_dict)
- 
+
                 if df_roi_a.empty or df_roi_b.empty:
                     print("No ROI data (df_ind) found for one or both groups.")
                     continue
- 
+
                 run_inter_group_laterality_analysis(
                     df_roi_all_a=df_roi_a,
                     df_roi_all_b=df_roi_b,
@@ -278,7 +278,7 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                     roi_contra_label=roi_a,
                     roi_ipsi_label=roi_b,
                 )
- 
+
             elif idx == 2:
                 params = param_values.get(idx, {})
                 p_threshold = params.get("p_threshold", 0.05)
@@ -286,11 +286,11 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                 correction_method = params.get("correction_method", "fdr_bh")
                 target_chroma = params.get("target_chroma", "hbo")
                 contrast_name = params.get("contrast_name", "")
- 
+
                 if not contrast_name:
                     print("A contrast name must be specified.")
                     continue
- 
+
                 # Build each group's channel-level contrast dataframe
                 # directly from contrast_results_dict, keyed by file path -
                 # same dict-key approach as the laterality patch, avoids
@@ -300,7 +300,7 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                     contrast_dict: dict[str, dict[str, pd.DataFrame]],
                     name: str,
                 ) -> pd.DataFrame:
-                    
+
                     all_rows: list[DataFrame] = []
                     for fp in file_paths:
                         condition_dfs = contrast_dict.get(fp)
@@ -315,10 +315,10 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                         else:
                             print(f"   [MISSING CONTRAST] '{name}' not available for '{fp}'.")
                     return pd.concat(all_rows, ignore_index=True) if all_rows else pd.DataFrame()
- 
+
                 df_contrasts_a = _build_group_contrast_df(file_paths_a, self.contrast_results_dict, contrast_name)
                 df_contrasts_b = _build_group_contrast_df(file_paths_b, self.contrast_results_dict, contrast_name)
- 
+
                 if df_contrasts_a.empty or df_contrasts_b.empty:
                     print("No contrast data found for one or both groups.")
                     continue
@@ -350,6 +350,6 @@ class InterGroupStatsWidget(InterGroupUIMixin, FlaresBaseWidget):
                     p_threshold=p_threshold,
                     correction_method=correction_method,
                 )
- 
+
             else:
                 print("no")

src/analysis/intragroupbrainimage.py

@@ -78,7 +78,7 @@ DESCRIPTION = """0. FIR Model Results (plot_fir_model_results)
 class IntraGroupBrainImageWidget(IntraGroupUIMixin, FlaresBaseWidget):
     def __init__(
         self,
-        haemo_dict: dict[str, BaseRaw], 
+        haemo_dict: dict[str, BaseRaw],
         cha_dict: dict[str, DataFrame],
         df_ind_dict: dict[str, DataFrame],
         design_matrix_dict: dict[str, DataFrame],
@@ -94,7 +94,7 @@ class IntraGroupBrainImageWidget(IntraGroupUIMixin, FlaresBaseWidget):
         self.design_matrix_dict = design_matrix_dict
         self.contrast_results_dict = contrast_results_dict
         self.group_dict = group_dict
-               
+
         self.setup_intra_group_ui(["0 (GLM Results)", "1 (Brain Activity Visualization)"], placeholder_text=DESCRIPTION)
 
 
@@ -116,18 +116,18 @@ class IntraGroupBrainImageWidget(IntraGroupUIMixin, FlaresBaseWidget):
 
             if selected_event:
                 raw_annotations = getattr(haemo_obj, "annotations", None)
-                
+
                 if raw_annotations is not None:
                     annotations = cast(Annotations, raw_annotations)
                     descriptions = cast(list[str], list(annotations.description))
                     participant_events: set[str] = set(descriptions)
                 else:
                     participant_events: set[str] = set()
-                    
+
                 if selected_event not in participant_events:
                     print(f"Skipping {self.participant_map[file_path]}: Event '{selected_event}' not found.")
                     continue
-            
+
             cha_df = self.cha_dict.get(file_path)
             if cha_df is not None:
                 all_cha = pd.concat([all_cha, cha_df], ignore_index=True)
@@ -144,7 +144,7 @@ class IntraGroupBrainImageWidget(IntraGroupUIMixin, FlaresBaseWidget):
                 df = self.df_ind_dict.get(file_path)
                 if df is not None:
                     df_group = pd.concat([df_group, df], ignore_index=True)
-                
+
 
         for idx in selected_indexes:
             if idx == 0:
@@ -170,7 +170,7 @@ class IntraGroupBrainImageWidget(IntraGroupUIMixin, FlaresBaseWidget):
                     continue
 
                 all_raw_objs = [self.haemo_dict.get(fp) for fp in selected_file_paths if self.haemo_dict.get(fp)]
-                
+
                 if len(all_raw_objs) > 1:
                     processed_raw = aggregate_fnirs_group_geometry(all_raw_objs)
                 elif len(all_raw_objs) == 1 and all_raw_objs[0] is not None:
@@ -180,6 +180,6 @@ class IntraGroupBrainImageWidget(IntraGroupUIMixin, FlaresBaseWidget):
                     processed_raw = None
 
                 brain_3d_visualization(processed_raw, all_cha, selected_event, t_or_theta=t_or_theta, show_optodes=show_optodes, show_text=show_text, brain_bounds=brain_bounds)
-                    
+
             else:
                 print(f"No method defined for index {idx}")

src/analysis/intragroupfunctionalconnectivity.py

@@ -64,7 +64,7 @@ class IntraGroupFunctionalConnectivityWidget(IntraGroupUIMixin, FlaresBaseWidget
         epochs_dict: dict[str, Epochs],
         group_dict: dict[str, str],
     ) -> None:
-        
+
         super().__init__("IntraGroupFunctionalConnectivity")
         self.setWindowTitle(f"Intra-Group Functional Connectivity Viewer [BETA] - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict

src/analysis/intragroupstats.py

@@ -157,8 +157,8 @@ DESCRIPTION = """0. ROI vs. Zero (run_roi_second_level_analysis)
 
 class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
     def __init__(
-        self, 
-        haemo_dict: dict[str, BaseRaw], 
+        self,
+        haemo_dict: dict[str, BaseRaw],
         cha_dict: dict[str, DataFrame],
         df_ind_dict: dict[str, DataFrame],
         design_matrix_dict: dict[str, DataFrame],
@@ -166,7 +166,7 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
         roi_channel_map_dict: dict[str, dict[str, str]],
         group_dict: dict[str, str],
     ) -> None:
-        
+
         super().__init__("IntraGroupStats")
         self.setWindowTitle(f"Intra-Group Stats Viewer - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
@@ -185,7 +185,7 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
         if request is None:
             return
 
-        (selected_event, selected_file_paths, selected_indexes, raw_params) = request     
+        (selected_event, selected_file_paths, selected_indexes, raw_params) = request
 
         param_values = cast(dict[int | str, dict[str, Any]], raw_params)
 
@@ -198,20 +198,19 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
 
             if selected_event:
                 raw_annotations = getattr(haemo_obj, "annotations", None)
-                
+
                 if raw_annotations is not None:
                     annotations = cast(Annotations, raw_annotations)
                     descriptions = cast(list[str], list(annotations.description))
                     participant_events: set[str] = set(descriptions)
                 else:
                     participant_events: set[str] = set()
-                    
+
                 if selected_event not in participant_events:
                     print(f"Skipping {self.participant_map[file_path]}: Event '{selected_event}' not found.")
                     continue
 
 
-            
             cha_df = self.cha_dict.get(file_path)
             if cha_df is not None:
                 all_cha = pd.concat([all_cha, cha_df], ignore_index=True)
@@ -288,23 +287,23 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
                 target_chroma = params.get("target_chroma", "hbo")
                 roi_a = params.get("roi_a", "").strip()
                 roi_b = params.get("roi_b", "").strip()
-            
+
                 if not selected_event:
                     print("Paired ROI contrast requires a specific event/condition "
                           "to be selected - pick one from the Event dropdown first.")
                     continue
- 
+
                 if df_group.empty:
                     print("No ROI data (df_ind) found for selected participants.")
                     continue
- 
+
                 if correction_method == "None":
                     correction_method = None
- 
+
                 if not roi_a or not roi_b:
                     print("Both ROI A and ROI B must be specified.")
                     continue
-                
+
                 run_roi_paired_contrast_analysis(
                     df_roi_all=df_group,
                     roi_pairs=(roi_a, roi_b),
@@ -351,12 +350,12 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
                     else:
                         print(f"   [MISSING CONTRAST] '{contrast_name}' not "
                               f"available for {self.participant_map.get(fp, fp)}.")
- 
+
                 if not all_contrasts:
                     print(f"No contrast data found for '{contrast_name}' "
                           f"across selected participants.")
                     continue
- 
+
                 df_contrasts = pd.concat(all_contrasts, ignore_index=True)
 
                 selected_roi_maps = {
@@ -378,12 +377,12 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
                 except Exception as e:
                     print(f"Failed to aggregate contrasts to ROI: {e}")
                     continue
- 
+
                 if roi_theta.empty:
                     print("No ROI-level contrast values could be computed "
                           "(check regions.json channel names against this montage).")
                     continue
- 
+
                 run_roi_second_level_analysis(
                     df_roi_all=roi_theta,
                     condition=contrast_name,
@@ -395,6 +394,6 @@ class IntraGroupStatsWidget(IntraGroupUIMixin, FlaresBaseWidget):
                     target_chroma=target_chroma,
                     graph_bounds=graph_bounds if graph_bounds > 0.0 else None,
                 )
- 
+
             else:
                 print(f"No method defined for index {idx}")

src/analysis/participantbrain.py

@@ -67,11 +67,11 @@ PARAMETERIZED_INDEXES: dict[int, list[dict[str, Any]]] = {
 
 class ParticipantBrainViewerWidget(ParticipantUIMixin, FlaresBaseWidget):
     def __init__(
-        self, 
-        haemo_dict: dict[str, BaseRaw], 
+        self,
+        haemo_dict: dict[str, BaseRaw],
         cha_dict: dict[str, DataFrame],
     ) -> None:
-        
+
         super().__init__("ParticipantBrain")
         self.setWindowTitle(f"Participant Brain Viewer - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
@@ -86,7 +86,7 @@ class ParticipantBrainViewerWidget(ParticipantUIMixin, FlaresBaseWidget):
         if request is None:
             return
 
-        (selected_event, selected_file_paths, selected_indexes, raw_params) = request  
+        (selected_event, selected_file_paths, selected_indexes, raw_params) = request
 
         param_values = cast(dict[int | str, dict[str, Any]], raw_params)
 
@@ -99,14 +99,14 @@ class ParticipantBrainViewerWidget(ParticipantUIMixin, FlaresBaseWidget):
 
             if selected_event:
                 raw_annotations = getattr(haemo_obj, "annotations", None)
-                
+
                 if raw_annotations is not None:
                     annotations = cast(Annotations, raw_annotations)
                     descriptions = cast(list[str], list(annotations.description))
                     participant_events: set[str] = set(descriptions)
                 else:
                     participant_events: set[str] = set()
-                    
+
                 if selected_event not in participant_events:
                     print(f"Skipping {self.participant_map[file_path]}: Event '{selected_event}' not found.")
                     continue

src/analysis/participantfoldchannels.py

@@ -8,29 +8,31 @@ License: GPL-3.0
 
 # Built-in Imports
 import os
-from pathlib import Path
 import time
 import traceback
+
+from pathlib import Path
 from multiprocessing import Process, current_process, Manager
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 # External library imports
-from matplotlib.backend_bases import Event
 import numpy as np
+from pandas import DataFrame
 
 import matplotlib.pyplot as plt
 import matplotlib.image as mpimg
 from matplotlib.figure import Figure
+from matplotlib.backend_bases import Event
 from matplotlib.backends.backend_qtagg import FigureCanvasQTAgg as FigureCanvas
 
 from PySide6.QtWidgets import QFrame, QGridLayout, QHBoxLayout, QLabel, QLayout, QProgressBar, QPushButton, QScrollArea, QSizePolicy, QWidget, QDialog, QVBoxLayout
 from PySide6.QtCore import QThread, Qt, QSize, QTimer, QObject, Signal
 from PySide6.QtGui import QCloseEvent, QMouseEvent, QPixmap, QImage
-from pandas import DataFrame
 
 from mne.io.base import BaseRaw
 from src.shared.flaresbasewidget import FlaresBaseWidget
 from src.shared.shareddata import APP_NAME, resource_path
+from flares import fold_channels
 
 
 class MultiProgressDialog(QDialog):
@@ -38,7 +40,7 @@ class MultiProgressDialog(QDialog):
         super().__init__(parent)
         self.setWindowTitle("fOLD Analysis Progress")
         self.setFixedWidth(400)
-        self.setWindowModality(Qt.WindowModality.NonModal) 
+        self.setWindowModality(Qt.WindowModality.NonModal)
         self.main_layout = QVBoxLayout(self)
         self.bars: Dict[str, QProgressBar] = {}
         self.allow_closing = False
@@ -50,7 +52,7 @@ class MultiProgressDialog(QDialog):
         pbar.setMinimum(0)
         pbar.setMaximum(int(total_steps))  # Ensure this is a strict integer
         pbar.setValue(0)
-        
+
         self.main_layout.addWidget(label_widget)
         self.main_layout.addWidget(pbar)
         self.bars[clean_key] = pbar
@@ -70,7 +72,7 @@ class MultiProgressDialog(QDialog):
     def force_close(self):
         self.allow_closing = True
         self.close()
-          
+
 
 def single_participant_worker(
     file_path: str,
@@ -82,10 +84,9 @@ def single_participant_worker(
     """ Runs inside its own dedicated process """
     p_name = os.path.basename(file_path)
     try:
-        from flares import fold_channels
         # Perform the heavy fold_channels logic
         channel_results = fold_channels(raw=raw_data, p_name=p_name, progress_queue=progress_queue)
-        
+
         # Hand back results and signal completion
         result_queue.put({file_path: channel_results})
         progress_queue.put(p_name)
@@ -116,11 +117,11 @@ def get_landmark_color_map() -> Dict[str, Tuple[float, float, float, float]]:
     ]
     # Sort logically
     landmarks.sort(key=lambda x: (int(x.split(" - ")[0]) if x.split(" - ")[0].isdigit() else float('inf')))
-    
+
     cmap1 = plt.get_cmap('tab20')
     cmap2 = plt.get_cmap('tab20b')
     colors = [cmap1(i) for i in range(20)] + [cmap2(i) for i in range(20)]
-    
+
     return {landmark: colors[i % len(colors)] for i, landmark in enumerate(landmarks)}
 
 
@@ -136,16 +137,16 @@ class StaticChannelCanvas(FigureCanvas):
         image_path: Optional[str] = None,
         parent: Optional[QWidget] = None,
     ) -> None:
-        
+
         self.fig = Figure(figsize=(11.0, 5.5))
-        
+
         self.ax = self.fig.subplots(1, 2)
 
         super().__init__(self.fig)
         self.setParent(parent)
-        
+
         self.setMouseTracking(True)
-        
+
         # --- 1. DATA PREPARATION ---
         self.wedge_data_list = list(data_list)
         total_specificity = sum(d['Specificity'] for d in self.wedge_data_list)
@@ -156,7 +157,7 @@ class StaticChannelCanvas(FigureCanvas):
                     'Landmark': 'Other / Unclassified Regions',
                     'Specificity': remainder
                 })
-        
+
         self.specificities = [d['Specificity'] for d in self.wedge_data_list]
         self.landmarks = [d['Landmark'] for d in self.wedge_data_list]
         self.colors = [color_map.get(lm, '#ccc') if 'Other' not in lm else '#d3d3d3' for lm in self.landmarks]
@@ -174,7 +175,7 @@ class StaticChannelCanvas(FigureCanvas):
             labeldistance=1.1
         )
         self.ax[0].axis('equal')
-        
+
         # --- 3. RIGHT SUBPLOT: PNG IMAGE DISPLAY ---
         # Note we explicitly target self.ax[1] now
         if image_path:
@@ -188,14 +189,14 @@ class StaticChannelCanvas(FigureCanvas):
             # Fallback message if no image path is passed down
             self.ax[1].text(0.5, 0.5, "No Reference Image\nProvided", 
                             ha='center', va='center', fontsize=12, fontweight='bold', color='#777')
-        
+
         # Completely hide the background grid, spines, and axis lines for the image box
         self.ax[1].axis('off')
 
         # --- 4. CANVAS TEXT OVERLAY ---
         # Main Title centered globally over both subplots
         self.fig.suptitle(channel_name, fontsize=16, fontweight='bold', y=0.97)
-        
+
         # Shared info box text overlay centered horizontally across the whole window figure
         self.info_text = self.ax[0].text(
             0.5, 0.04, "", 
@@ -205,9 +206,9 @@ class StaticChannelCanvas(FigureCanvas):
             bbox=dict(boxstyle="round,pad=0.5", facecolor="#fdfdfd", edgecolor="#bbb", alpha=0.95)
         )
         self.info_text.set_visible(False)
-        
+
         self.currently_exploded_idx = None
-        
+
         # Layout space optimization
         self.fig.subplots_adjust(left=0.05, bottom=0.1, right=0.95, top=0.85, wspace=0.2)
         self.draw()
@@ -236,10 +237,10 @@ class StaticChannelCanvas(FigureCanvas):
                 if self.currently_exploded_idx != hovered_index:
                     self.currently_exploded_idx = hovered_index
                     self._explode_wedge(hovered_index)
-                    
+
                     displayed_pct = self.autotexts[hovered_index].get_text()
                     full_desc = self.landmarks[hovered_index]
-                    
+
                     self.info_text.set_text(f"{full_desc}  |  {displayed_pct}")
                     self.info_text.set_visible(True)
                     self.draw_idle()
@@ -249,7 +250,7 @@ class StaticChannelCanvas(FigureCanvas):
                     self.info_text.set_visible(False)
                     self.currently_exploded_idx = None
                     self.draw_idle()
-                    
+
         except Exception as err:
             print(f"[ERROR] Internal failure inside _on_hover loop: {err}")
             traceback.print_exc()
@@ -280,19 +281,18 @@ class StaticChannelCanvas(FigureCanvas):
                 changed = True
         if changed:
             self.draw_idle()
-        
 
 
 class StandaloneLegendDialog(QWidget):
-    def __init__(self, canvas_engine, title_prefix, parent=None):
+    def __init__(self, canvas_engine: Any, title_prefix: str, parent: QWidget | None = None) -> None:
         super().__init__(None)
         self.setWindowTitle("Full View - Brodmann Legend")
         self.setMinimumSize(500, 600)
         self.resize(500, 900)
-        
+
         layout = QVBoxLayout(self)
         layout.setContentsMargins(10, 10, 10, 10)
-        
+
         # Reuse your exact card creation method to render inside the popup window
         legend_card = canvas_engine.create_legend_card(title_prefix)
         layout.addWidget(legend_card)
@@ -302,34 +302,41 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
     """The Big Grid Canvas.
     Dynamically scales row and column configurations to maintain a crisp 16:9 layout orientation.
     """
-    def __init__(self, channels_data, color_map, is_fullscreen_copy=False, parent=None):
+    def __init__(
+        self,
+        channels_data: dict[str, list[dict[str, Any]]],
+        color_map: dict[str, str],
+        is_fullscreen_copy: bool = False,
+        parent: QWidget | None = None
+    ) -> None:
+
         self.channels_data = channels_data
         self.color_map = color_map
         self.is_fullscreen_copy = is_fullscreen_copy
-        
+
         num_channels = len(channels_data)
-        
-        # --- FIX: DYNAMICALLY CALCULATE OPTIMAL 16:9 COLUMNS ---
+
+        # Dynamically calculate best ratio for 16:9
         target_ratio = 16 / 9
         best_cols = 4
         min_ratio_error = float('inf')
-        
+
         # Test configurations from 4 columns up to the total number of channels
         for test_cols in range(4, num_channels + 1):
             test_rows = (num_channels + test_cols - 1) // test_cols
-            
+
             # Approximate the visual aspect ratio based on cell dimensions
             # Mini charts are slightly wider than tall, roughly 1.15 to 1.0 factor
             current_ratio = (test_cols * 1.15) / (test_rows * 1.0)
             error = abs(current_ratio - target_ratio)
-            
+
             if error < min_ratio_error:
                 min_ratio_error = error
                 best_cols = test_cols
 
         cols = best_cols
         rows = (num_channels + cols - 1) // cols
-        
+
         # Base figure sizing dynamically scales off the optimal matrix constraints
         if is_fullscreen_copy:
             # Maximized views stretch cleanly across standard display panels
@@ -337,17 +344,17 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         else:
             # Standard thumbnail views scaled down for participant cards
             figsize = (7.5, 7.5 / target_ratio)
-            
+
         self.fig = Figure(figsize=figsize)
-        
+
         super().__init__(self.fig)
         self.setParent(parent)
-        
+
         self.axes_data_registry = {}
 
         for idx, (channel_name, data_list) in enumerate(channels_data.items()):
             ax = self.fig.add_subplot(rows, cols, idx + 1)
-            
+
             padded_data_list = list(data_list)
             total_specificity = sum(d['Specificity'] for d in padded_data_list)
             if total_specificity < 100.0:
@@ -373,15 +380,15 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
             title_sz = 6 if num_channels > 30 else (9 if is_fullscreen_copy else 7)
 
             ax.pie(
-                specificities, 
-                startangle=90, 
+                specificities,
+                startangle=90,
                 colors=colors,
                 labels=labels,
                 textprops={'fontsize': font_sz, 'fontweight': 'bold'},
                 labeldistance=1.05,
                 radius=0.75
             )
-            
+
             ax.set_title(channel_name, fontsize=title_sz, fontweight='bold', pad=0, y=1.04)
             ax.axis('equal')
 
@@ -389,12 +396,12 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         # Large multi-column plots require less spacing overhead to prevent clipping label masks
         h_sp = 0.35 if num_channels > 30 else 0.18
         w_sp = 0.25 if num_channels > 30 else 0.10
-        
+
         if is_fullscreen_copy:
             self.fig.subplots_adjust(left=0.02, bottom=0.02, right=0.98, top=0.95, hspace=h_sp, wspace=w_sp)
         else:
             self.fig.set_layout_engine('constrained')
-            
+
         self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding)
 
         self.draw()
@@ -417,28 +424,28 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
                 background-color: #f8f9fa;
             }
         """)
-        
+
         card_layout = QVBoxLayout(card_frame)
         card_layout.setContentsMargins(6, 6, 6, 6)
         card_layout.setSpacing(4)
-        
+
         # 2. Add header matching the summary card type architecture
         header = QLabel(f"{title_prefix} - Channels Matrix")
         header.setStyleSheet("font-weight: bold; font-size: 10pt; border: none; color: #212529; background: transparent;")
         header.setAlignment(Qt.AlignmentFlag.AlignCenter)
         card_layout.addWidget(header)
-        
+
         # 3. Nest this canvas instance cleanly inside the card frame layout
         self.setParent(card_frame)
         card_layout.addWidget(self)
         card_layout.addStretch(0)
-        
+
         # 4. Make the remaining empty whitespace frame areas trigger the maximization loop
         card_frame.mouseReleaseEvent = lambda event: self._open_fullscreen_grid() if event.button() == Qt.MouseButton.LeftButton else None
-        
+
         # Ensure underlying child mouse hits tunnel downstream properly to our parent container frame
         header.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
-        
+
         layout_to_attach_to.addWidget(card_frame)
         return card_frame
 
@@ -452,7 +459,7 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         clicked_subplot_data = self.axes_data_registry.get(event.inaxes)
         if clicked_subplot_data:
             self._open_expanded_view(
-                clicked_subplot_data['channel_name'], 
+                clicked_subplot_data['channel_name'],
                 clicked_subplot_data['data_list']
             )
 
@@ -463,30 +470,30 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         fullscreen_window = QWidget(None)
         fullscreen_window.setWindowTitle("Participant Grid Monitor - Maximized View")
         fullscreen_window.setWindowFlags(
-            Qt.WindowType.Window | 
-            Qt.WindowType.WindowMinMaxButtonsHint | 
+            Qt.WindowType.Window |
+            Qt.WindowType.WindowMinMaxButtonsHint |
             Qt.WindowType.WindowCloseButtonHint
         )
-        
+
         layout = QVBoxLayout(fullscreen_window)
         layout.setContentsMargins(0, 0, 0, 0) 
-        
+
         # Instantiate the copy
         large_grid_canvas = InteractiveParticipantGridCanvas(
-            self.channels_data, 
-            self.color_map, 
-            is_fullscreen_copy=True, 
+            self.channels_data,
+            self.color_map,
+            is_fullscreen_copy=True,
             parent=fullscreen_window
         )
-        
+
         # Explicitly tag the new canvas object internally to block further clicks
         large_grid_canvas._is_fullscreen_flag_set = True
-        
+
         layout.addWidget(large_grid_canvas)
-        
+
         # Open non-modally so it populates the taskbar and matches OS window behaviors
         fullscreen_window.showMaximized()
-        
+
         # Keep a reference alive on the source canvas so Python doesn't garbage collect the window
         if not hasattr(self, '_fullscreen_refs'):
             self._fullscreen_refs = []
@@ -494,16 +501,16 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         self._fullscreen_refs.append(fullscreen_window)
 
 
-    def _calculate_total_brodmann_profile(self, channels_data: Dict[str, Any]):
+    def _calculate_total_brodmann_profile(self, channels_data: dict[str, list[dict[str, Any]]]) -> list[dict[str, Any]]:
         """Sums and normalizes the specificity profile across all channels."""
         totals = {}
         num_channels = len(channels_data)
-        
+
         if num_channels == 0:
             return []
 
         # Sum up specificities across all channels
-        for channel_name, data_list in channels_data.items():
+        for _, data_list in channels_data.items():
             for entry in data_list:
                 landmark = entry['Landmark']
                 specificity = entry['Specificity']
@@ -532,19 +539,19 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
 
         return normalized_data_list
 
-    def _open_expanded_view(self, channel_name, data_list):
+    def _open_expanded_view(self, channel_name: str, data_list: list[dict[str, Any]]) -> None:
         # 1. Create a plain QWidget with NO parent (None)
         # This instantly makes it a top-level desktop window
-        popup = QWidget(None) 
+        popup = QWidget(None)
         popup.setWindowTitle(f"Channel Specificity Detail - {channel_name}")
-        
+
         # 2. Add standard window control behaviors
         popup.setWindowFlags(
-            Qt.WindowType.Window | 
-            Qt.WindowType.WindowMinMaxButtonsHint | 
+            Qt.WindowType.Window |
+            Qt.WindowType.WindowMinMaxButtonsHint |
             Qt.WindowType.WindowCloseButtonHint
         )
-        
+
         # 3. Build layout out exactly as before
         layout = QVBoxLayout(popup)
         layout.setContentsMargins(0, 0, 0, 0) # Strip extra outer layout spacing
@@ -552,23 +559,23 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         target_png_path = resource_path("images/brain.png")
 
         expanded_canvas = StaticChannelCanvas(
-            channel_name, 
-            data_list, 
-            self.color_map, 
-            image_path=target_png_path, 
+            channel_name,
+            data_list,
+            self.color_map,
+            image_path=target_png_path,
             parent=popup
         )
-        
+
         layout.addWidget(expanded_canvas)
         popup.resize(900, 520)
-        
+
         # 4. Display non-modally
-        popup.show() 
-        
+        popup.show()
+
         # 5. Keep the reference alive so Python doesn't garbage collect it
         if not hasattr(self, '_open_popups'):
             self._open_popups = []
-            
+
         # Clean up closed windows from our tracking list to save memory
         self._open_popups = [w for w in self._open_popups if w.isVisible()]
         self._open_popups.append(popup)
@@ -578,7 +585,7 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         """Generates a highly compact, clickable embedded card on the main window showing aggregated data."""
         # 1. Calculate the normalized profile data payload using the instance's own data
         summary_data = self._calculate_total_brodmann_profile(self.channels_data)
-        
+
         # 2. Create a styled container card frame
         card_frame = QFrame()
         card_frame.setFrameShape(QFrame.Shape.StyledPanel)
@@ -593,19 +600,19 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
                 background-color: #f8f9fa; /* Slightly shifts background color on hover */
             }
         """)
-        
+
         card_layout = QVBoxLayout(card_frame)
         card_layout.setContentsMargins(4, 4, 4, 4)
         card_layout.setSpacing(2)
-        
+
         # Add a clear section header label containing the specific participant identity
         header = QLabel(f"{title_prefix} - Total Profile")
         header.setStyleSheet("font-weight: bold; font-size: 10pt; border: none; color: #212529;")
         header.setAlignment(Qt.AlignmentFlag.AlignCenter)
         card_layout.addWidget(header)
-        
+
         target_png_path = resource_path("images/brain.png")
-        
+
         # 3. Instantiate the canvas with a custom size flag or constraint
         # Adjust your StaticChannelCanvas __init__ to check if it should render in 'compact' mode
         summary_canvas = StaticChannelCanvas(
@@ -615,7 +622,7 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
             image_path=target_png_path,
             parent=card_frame,
         )
-        
+
         # --- CRITICAL: SHRINK MATPLOTLIB FIGURE ELEMENTS FOR THE EMBEDDED VIEWER ---
         # Scale down the underlying canvas container so it doesn't balloon the layout grid
         if hasattr(summary_canvas, 'fig'):
@@ -625,7 +632,7 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
                 for text in ax.texts:
                     text.set_fontsize(6)
             summary_canvas.draw()
-            
+
         summary_canvas.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Preferred)        
         card_layout.addWidget(summary_canvas)
         card_layout.addStretch(0)
@@ -634,9 +641,9 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
             # Only trigger expansion if it's a primary left-click action
             if event.button() == Qt.MouseButton.LeftButton:
                 self._open_expanded_summary_window(title_prefix, summary_data)
-                
+
         card_frame.mouseReleaseEvent = handle_card_click
-        
+
         # Prevent clicks on the text/child elements from being swallowed up instead of passing to frame
         header.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
         summary_canvas.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
@@ -646,21 +653,21 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         return card_frame
 
 
-    
+
     def create_legend_card(self, title_prefix: str) -> QFrame:
         card = QFrame()
         card.setStyleSheet("QFrame { background-color: #ffffff; border-radius: 8px; border: 1px solid #e9ecef; }")
-        
+
         layout = QVBoxLayout(card)
         layout.setContentsMargins(20, 20, 20, 20)
         layout.setSpacing(10)
-        
+
         header_label = QLabel(f"{title_prefix}\nLandmarks")
         header_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
         header_label.setStyleSheet("font-size: 14px; font-weight: bold; color: #1a252f; border: none;")
         layout.addWidget(header_label)
         layout.addSpacing(10)
-        
+
         scroll_area = QScrollArea()
         scroll_area.setWidgetResizable(True)
         scroll_area.setStyleSheet("QScrollArea { border: none; background: transparent; }")
@@ -669,76 +676,75 @@ class InteractiveParticipantGridCanvas(FigureCanvas):
         scroll_layout = QVBoxLayout(scroll_content)
         scroll_layout.setSpacing(6)
         scroll_layout.setContentsMargins(0, 0, 0, 0)
-        
 
         true_color_map = get_landmark_color_map()
-        
+
         # Iterate over the sorted keys directly from your method
         for landmark_text in true_color_map.keys():
             item_row = QHBoxLayout()
             item_row.setSpacing(12)
-            
+
             # Extract the RGBA tuple value assigned by matplotlib
             rgba = true_color_map[landmark_text]
             # Convert float tuple components (0.0 - 1.0) to standard CSS integer scales (0 - 255)
             r, g, b = int(rgba[0] * 255), int(rgba[1] * 255), int(rgba[2] * 255)
             color_hex = f"rgb({r}, {g}, {b})"
-            
+
             # Format display string nicely: "1 — Primary Somatosensory Cortex"
             if " - " in landmark_text:
                 num, name = landmark_text.split(" - ", 1)
                 display_string = f"<b>{num}</b> — {name}"
             else:
                 display_string = f"<b>{landmark_text}</b>"
-            
+
             dot = QLabel()
             dot.setFixedSize(14, 14)
             dot.setStyleSheet(f"background-color: {color_hex}; border-radius: 7px; border: none;")
-            
+
             label = QLabel(display_string)
             label.setStyleSheet("font-size: 12px; color: #343a40; border: none;")
-            
+
             item_row.addWidget(dot)
             item_row.addWidget(label, 1)
             scroll_layout.addLayout(item_row)
-            
+
         scroll_area.setWidget(scroll_content)
         layout.addWidget(scroll_area)
         return card
-    
+
 
     def _open_expanded_summary_window(self, title_prefix: str, summary_data: List[Any]) -> None:
         """Pops open a beautifully scaled, independent large window when the card is clicked."""
-        popup = QWidget(None) 
+        popup = QWidget(None)
         popup.setWindowTitle(f"Grand Total Profile Details - {title_prefix}")
         popup.setWindowFlags(
-            Qt.WindowType.Window | 
-            Qt.WindowType.WindowMinMaxButtonsHint | 
+            Qt.WindowType.Window |
+            Qt.WindowType.WindowMinMaxButtonsHint |
             Qt.WindowType.WindowCloseButtonHint
         )
-        
+
         layout = QVBoxLayout(popup)
         layout.setContentsMargins(10, 10, 10, 10)
-        
+
         target_png_path = resource_path("images/brain.png")
-        
+
         # This one renders full size (900x520) for analytical reading
         expanded_canvas = StaticChannelCanvas(
-            f"{title_prefix} - All Channels Aggregated", 
-            summary_data, 
-            self.color_map, 
-            image_path=target_png_path, 
+            f"{title_prefix} - All Channels Aggregated",
+            summary_data,
+            self.color_map,
+            image_path=target_png_path,
             parent=popup,
         )
-        
+
         layout.addWidget(expanded_canvas)
         popup.resize(950, 550)
         popup.show()
-        
+
         if not hasattr(self, '_summary_popups'):
             self._summary_popups = []
         self._summary_popups.append(popup)
-        
+
 
 class ProcessOrchestrator(QObject):
     # Fires when Manager + Processes are completely ready
@@ -746,12 +752,13 @@ class ProcessOrchestrator(QObject):
     setup_finished = Signal(object, object, object, list)
     setup_failed = Signal(str)
 
-    def __init__(self,
-        selected_files,
-        haemo_dict: dict[str, BaseRaw],
-        worker_func
-    ):
-        
+    def __init__(
+        self,
+        selected_files: list[str],
+        haemo_dict: dict[str, Any],
+        worker_func: Callable[..., Any]
+    ) -> None:
+
         super().__init__()
         self.selected_files = selected_files
         self.haemo_dict = haemo_dict
@@ -786,7 +793,7 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
         haemo_dict: dict[str | Path, BaseRaw],
         cha_dict: dict[str, DataFrame]
     ) -> None:
-        
+
         super().__init__("ParticipantFoldChannels")
         self.setWindowTitle(f"Participant Fold Channels Viewer - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
@@ -807,12 +814,9 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
 
         self.participant_dropdown = self._create_multiselect_dropdown(self.participant_dropdown_items)
         self.participant_dropdown.currentIndexChanged.connect(self.update_participant_dropdown_label)
-              
+
         self.index_texts = [
             "0 (Fold Channels)",
-            # "1 (second image)",
-            # "2 (third image)",
-            # "3 (fourth image)",
             ]
 
         self.image_index_dropdown = self._create_multiselect_dropdown(self.index_texts)
@@ -835,7 +839,7 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
 
         # 2. Create the central canvas widget that inside the scroll block
         self.scroll_content_widget = QWidget()
-        
+
         # 3. Establish the strict 3-column layout grid engine
         self.grid_layout = QGridLayout(self.scroll_content_widget)
         self.grid_layout.setContentsMargins(12, 12, 12, 12)
@@ -844,7 +848,7 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
         self.grid_layout.setColumnStretch(0, 1)
         self.grid_layout.setColumnStretch(1, 1)
         self.grid_layout.setColumnStretch(2, 1)
-        
+
         # 2. Force a uniform structural minimum width per column
         # This blocks the dense matrices from hogging space and compressing the summary cards
         self.grid_layout.setColumnMinimumWidth(0, 400)
@@ -854,7 +858,7 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
 
         # Bind them together
         self.scroll_area.setWidget(self.scroll_content_widget)
-        
+
         # Add the self.scroll_area widget to your root layout view frame panel
         self.main_layout.addWidget(self.scroll_area)
 
@@ -865,12 +869,12 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
     def show_fold_images(self):
         selected_display_names = self._get_checked_items(self.participant_dropdown)
         selected_indexes = [int(s.split(" ")[0]) for s in self._get_checked_items(self.image_index_dropdown)]
-        
+
         if not selected_display_names or 0 not in selected_indexes:
             return
         selected_files = [path for path, label in self.participant_map.items() 
                       if f"{label} ({os.path.basename(path)})" in selected_display_names]
-        
+
         while self.grid_layout.count():
             item = self.grid_layout.takeAt(0)
             widget = item.widget()
@@ -885,16 +889,11 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
             # Dig out the exact channels list length matching your loop engine logic
             hbo_channels = getattr(raw_data.copy().pick(picks='hbo'), "ch_names", [])
             total_channels = len(hbo_channels) if hbo_channels else 1
-            
+
             self.multi_progress.add_participant(os.path.basename(file_path), total_channels)
 
-        from datetime import datetime
-
-        print(f"Before: {datetime.now()}")
         self.multi_progress.show()
 
-        print(f"After 1: {datetime.now()}")
-
         if current_process().name == 'MainProcess':
             # Create a clean background thread worker execution channel
             self.orchestrator_thread = QThread()
@@ -914,16 +913,15 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
             self.orchestrator.setup_failed.connect(self.orchestrator.deleteLater)
 
             self.orchestrator_thread.start()
-        print(f"After 4: {datetime.now()}")
 
     def on_orchestration_success(
-        self, 
-        manager: Any, 
-        result_queue: Any, 
-        progress_queue: Any, 
+        self,
+        manager: Any,
+        result_queue: Any,
+        progress_queue: Any,
         active_processes: List[Any]
     ) -> None:
-        
+
         """ Executed on the Main GUI Thread once background process setup finishes """
         self.manager = manager
         self.result_queue = result_queue
@@ -949,12 +947,12 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
 
         while not self.progress_queue.empty():
             msg = self.progress_queue.get()
-            
+
             # CASE 1: Micro-step channel increment (Tuple tracking)
             if isinstance(msg, tuple):
                 p_name, completed_channels = msg
                 clean_key = str(p_name).strip()
-                
+
                 if hasattr(self, 'multi_progress') and clean_key in self.multi_progress.bars:
                     print(completed_channels)
                     self.multi_progress.update_bar(clean_key, completed_channels)
@@ -962,12 +960,12 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
                     # DEBUG LOG: This tells us exactly why a bar isn't moving
                     print(f"[DEBUG WARNING] Progress received for '{clean_key}' but no matching bar was found. Existing bars: {list(self.multi_progress.bars.keys())}")
                 continue
-            
+
             # CASE 2: Worker process crashed with an error string
             if isinstance(msg, str) and msg.startswith("ERROR"):
                 print(f"Worker Error: {msg}")
                 #self.completed_count += 1  # Count as finished so the UI doesn't hang
-                
+
             # CASE 3: Final clean text string signal indicating complete file closure
             elif isinstance(msg, str):
                 # Max out the progress bar visually on completion
@@ -975,7 +973,7 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
                     if msg in self.multi_progress.bars:
                         max_val = self.multi_progress.bars[msg].maximum()
                         self.multi_progress.update_bar(msg, max_val)
-                        
+
                 self.completed_count += 1  # Increment the master task tracker
                 print(self.completed_count, time.time())
 
@@ -987,36 +985,36 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
         # Clean up when all processes are done
         if self.completed_count >= len(self.active_processes):
             self.result_timer.stop()
-            
+
             # Close the custom multi-progress window
             if hasattr(self, 'multi_progress'):
                 self.multi_progress.force_close()
-            
+
             # Clean up processes
             for p in self.active_processes:
                 if p.is_alive():
                     p.join(timeout=1) # Give it a second to wrap up
                 p.close() # Explicitly close the process object
-                
+
             # Shut down the Manager process (the source of the 'rogue' process)
             if hasattr(self, 'manager'):
                 self.manager.shutdown()
-                
+
             self.active_processes = []
             print("Processing fully complete. All resources released.")
 
             if hasattr(self, 'global_channels_data') and self.global_channels_data:
                 color_map = get_landmark_color_map()
-                
+
                 # We feed the entire channel pool directly to your existing canvas engine class
                 global_canvas = InteractiveParticipantGridCanvas(self.global_channels_data, color_map)
-                
+
                 # Create the summary card using your exact visual method
                 global_card = global_canvas.create_total_summary_card(
                     title_prefix="Grand Global Layout", 
                     layout_to_attach_to=self.scroll_content_widget.layout()
                 )
-                
+
                 # Match your exact layout positioning logic to place it next in the grid
                 count = self.grid_layout.count() - 1
                 row = count // 3
@@ -1031,9 +1029,9 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
                 def handle_legend_click(event):
                     self.active_legend_window = StandaloneLegendDialog(global_canvas, legend_title, self)
                     self.active_legend_window.show()
-                    
+
                 legend_card.mousePressEvent = handle_legend_click
-                
+
                 count = self.grid_layout.count()
                 row = count // 3
                 col = count % 3
@@ -1045,7 +1043,7 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
 
         for file_path, channels_data in result_dict.items():
             participant_label = self.participant_map.get(file_path, os.path.basename(file_path))
-            
+
             if hasattr(self, 'global_channels_data'):
                 for ch_name, ch_data in channels_data.items():
                     unique_key = f"{participant_label}_{ch_name}"
@@ -1060,19 +1058,19 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
                 title_prefix=participant_label,
                 layout_to_attach_to=self.scroll_content_widget.layout() # Maps directly to your grid layout
             )
-            
+
             # Pin Card A to the sequential grid coordinate tracker layout
             count = self.grid_layout.count() - 1 # Subtract 1 because widget registration steps index values forward
-            row = count // 3  
+            row = count // 3
             col = count % 3
             self.grid_layout.addWidget(matrix_card, row, col)
 
             # 3. Build Card B (Total Summary Profile Frame Layout)
             summary_card = participant_grid_canvas.create_total_summary_card(
-                title_prefix=participant_label, 
+                title_prefix=participant_label,
                 layout_to_attach_to=self.scroll_content_widget.layout()
             )
-            
+
             # Pin Card B directly next into the 3-column processing loop matrix layout tracker
             count = self.grid_layout.count() - 1
             row = count // 3
@@ -1100,21 +1098,21 @@ class ParticipantFoldChannelsWidget(FlaresBaseWidget):
         container = QFrame()
         container.setStyleSheet("background-color: #f9f9f9; border: 1px solid #ccc;")
         vbox = QVBoxLayout(container)
-        
+
         title = QLabel("<b>Brodmann Area Legend</b>")
-        title.setAlignment(Qt.AlignCenter)
+        title.setAlignment(Qt.AlignmentFlag.AlignCenter)
         vbox.addWidget(title)
-        
+
         pixmap = self._bytes_to_pixmap(legend_bytes)
         legend_label = QLabel()
         # Legends are usually tall, so we scale it differently or keep it smaller
         legend_label.setPixmap(pixmap.scaled(
-            self.thumb_size, 
-            Qt.KeepAspectRatio, 
-            Qt.SmoothTransformation
+            self.thumb_size,
+            Qt.AspectRatioMode.KeepAspectRatio,
+            Qt.TransformationMode.SmoothTransformation
         ))
-        legend_label.setAlignment(Qt.AlignCenter)
+        legend_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
         legend_label.mousePressEvent = lambda e, p=pixmap: self._open_full_size(p, "Brodmann Legend")
-        
+
         vbox.addWidget(legend_label)
         self.grid_layout.addWidget(container, 0, 0)

src/analysis/participantfunctionalconnectivity.py

@@ -83,7 +83,7 @@ class ParticipantFunctionalConnectivityWidget(ParticipantUIMixin, FlaresBaseWidg
         haemo_dict: dict[str, BaseRaw],
         epochs_dict: dict[str, Epochs],
     ) -> None:
-        
+
         super().__init__("ParticipantFunctionalConnectivity")
         self.setWindowTitle(f"Participant Functional Connectivity Viewer [BETA] - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict
@@ -101,28 +101,28 @@ class ParticipantFunctionalConnectivityWidget(ParticipantUIMixin, FlaresBaseWidg
         if request is None:
             return
 
-        (selected_event, selected_file_paths, selected_indexes, raw_params) = request  
+        (selected_event, selected_file_paths, selected_indexes, raw_params) = request
 
         param_values = cast(dict[int | str, dict[str, Any]], raw_params)
 
         # Pass the necessary arguments to each method
         for file_path in selected_file_paths:
             haemo_obj = self.haemo_dict.get(file_path)
-            epochs_obj = self.epochs_dict.get(file_path)       
-            
+            epochs_obj = self.epochs_dict.get(file_path)
+
             if haemo_obj is None or epochs_obj is None:
                 continue
 
             if selected_event:
                 raw_annotations = getattr(haemo_obj, "annotations", None)
-                
+
                 if raw_annotations is not None:
                     annotations = cast(Annotations, raw_annotations)
                     descriptions = cast(list[str], list(annotations.description))
                     participant_events: set[str] = set(descriptions)
                 else:
                     participant_events: set[str] = set()
-                    
+
                 if selected_event not in participant_events:
                     print(f"Skipping {self.participant_map[file_path]}: Event '{selected_event}' not found.")
                     continue
@@ -135,7 +135,7 @@ class ParticipantFunctionalConnectivityWidget(ParticipantUIMixin, FlaresBaseWidg
                     vmin = params.get("vmin", 0.9)
                     fmin = params.get("fmin", 0.04)
                     fmax = params.get("fmax", 0.2)
-                    
+
                     functional_connectivity_spectral_epochs(epochs=epochs_obj, n_lines=n_lines, vmin=vmin, fmin=fmin, fmax=fmax, method=method)
 
                 elif idx == 1:

src/analysis/participantimage.py

@@ -25,11 +25,11 @@ from src.shared.shareddata import APP_NAME
 
 class ParticipantImageViewerWidget(FlaresBaseWidget):
     def __init__(
-        self, 
+        self,
         haemo_dict: dict[str, BaseRaw],
         fig_bytes_dict: dict[str, dict[str, bytes]]
     ) -> None:
-        
+
         super().__init__("ParticipantImage")
         self.setAttribute(Qt.WidgetAttribute.WA_DeleteOnClose)
         self.setWindowTitle(f"Participant Image Viewer - {APP_NAME.upper()}")
@@ -52,7 +52,7 @@ class ParticipantImageViewerWidget(FlaresBaseWidget):
 
         self.participant_dropdown = self._create_multiselect_dropdown(self.participant_dropdown_items)
         self.participant_dropdown.currentIndexChanged.connect(self.update_participant_dropdown_label)
-                
+
         first_fig_dict = next(iter(self.fig_bytes_dict.values()))
         image_label_items = list(first_fig_dict.keys())
 

src/shared/flaresbasewidget.py

@@ -14,11 +14,12 @@ import pandas as pd
 from pandas import DataFrame
 
 from PySide6.QtWidgets import QApplication, QComboBox, QDialog, QGridLayout, QHBoxLayout, QLabel, QLineEdit, QListView, QMessageBox, QPushButton, QScrollArea, QSizePolicy, QVBoxLayout, QWidget, QFrame, QSpinBox, QFileDialog
-from PySide6.QtGui import QPalette, QStandardItemModel, QStandardItem, QPixmap, QIntValidator, QDoubleValidator
+from PySide6.QtGui import QStandardItemModel, QStandardItem, QPixmap, QIntValidator, QDoubleValidator
 from PySide6.QtCore import QEvent, QPoint, QSize, QTimer, Qt, Signal
 
 from src.shared.shareddata import APP_NAME, PIPELINE_STAGES
 
+
 class FullClickComboBox(QComboBox):
     def __init__(self, parent=None):
         super().__init__(parent)
@@ -28,16 +29,16 @@ class FullClickComboBox(QComboBox):
 
     def eventFilter(self, obj, event):
         if obj == self.lineEdit():
-            
+
             if event.type() == QEvent.MouseButtonPress:
                 return True
 
             if event.type() == QEvent.MouseButtonRelease:
                 self.showPopup()
                 return True
-                
+
         return super().eventFilter(obj, event)
-    
+
 
 class ClickableLabel(QLabel):
     def __init__(self, full_pixmap: QPixmap, thumbnail_pixmap: QPixmap):
@@ -47,7 +48,7 @@ class ClickableLabel(QLabel):
         self.setAlignment(Qt.AlignmentFlag.AlignCenter)
         self.setFixedSize(thumbnail_pixmap.size())
         self.setStyleSheet("border: 1px solid gray; margin: 2px;")
-    
+
     def mousePressEvent(self, event):
         viewer = QWidget()
         viewer.setWindowTitle(f"Expanded View - {APP_NAME.upper()}")
@@ -100,12 +101,12 @@ class ParameterInputDialog(QDialog):
         self.scroll.setMaximumHeight(800)
         self.scroll.setVerticalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAsNeeded)
         self.scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
-        
+
         self.scroll_content = QWidget()
         self.scroll_layout = QVBoxLayout(self.scroll_content)
         self.scroll_layout.setContentsMargins(10, 10, 10, 10)
         self.scroll.setWidget(self.scroll_content)
-        
+
         main_layout.addWidget(self.scroll)
 
         for idx, param_list in params_dict.items():
@@ -123,7 +124,7 @@ class ParameterInputDialog(QDialog):
                     # Convert options to string just in case they aren't
                     options = [str(opt) for opt in param_info.get("options", [])]
                     widget.addItems(options)
-                    
+
                     # Set default choice if it exists in the options list
                     default_val = str(param_info.get("default", ""))
                     if default_val in options:
@@ -231,14 +232,14 @@ class FullClickComboBox(QComboBox):
 
     def eventFilter(self, obj, event):
         if obj == self.lineEdit():
-            
+
             if event.type() == QEvent.MouseButtonPress:
                 return True
 
             if event.type() == QEvent.MouseButtonRelease:
                 self.showPopup()
                 return True
-                
+
         return super().eventFilter(obj, event)
 
 
@@ -249,32 +250,32 @@ class FilePickerWidget(QWidget):
 
     def __init__(self, default_val="", file_filter="JSON Files (*.json);;All Files (*)", parent=None):
         super().__init__(parent)
-        
+
         # Inline layout to hold line edit and button side-by-side
         layout = QHBoxLayout(self)
         layout.setContentsMargins(0, 0, 0, 0)
         layout.setSpacing(5)
-        
+
         self.line_edit = QLineEdit()
         self.line_edit.setText(str(default_val))
         self.line_edit.setPlaceholderText("Select file path...")
         # Forward internal text updates out through our custom component signal
         self.line_edit.textChanged.connect(self.textChanged.emit)
-        
+
         self.browse_btn = QPushButton("Browse...")
         self.browse_btn.clicked.connect(self.open_file_dialog)
-        
+
         layout.addWidget(self.line_edit)
         layout.addWidget(self.browse_btn)
-        
+
         self.file_filter = file_filter
 
     def open_file_dialog(self):
         # Open PySide6 native file browser
         file_path, _ = QFileDialog.getOpenFileName(
-            self, 
-            "Select Configuration File", 
-            self.line_edit.text(), 
+            self,
+            "Select Configuration File",
+            self.line_edit.text(),
             self.file_filter
         )
         if file_path:
@@ -308,7 +309,7 @@ class ParamSection(QWidget):
     """
 
     dirty_state_changed = Signal(bool)
-        
+
     def __init__(self, section_data, global_widgets):
         super().__init__()
         layout = QVBoxLayout()
@@ -317,7 +318,7 @@ class ParamSection(QWidget):
         self.dependencies = []
         self.selected_path = None
 
-        self.param_rows = [] 
+        self.param_rows = []
         self.header_widgets = []
         self.dirty_params = {}
         self._updating_checkstates = False
@@ -344,7 +345,7 @@ class ParamSection(QWidget):
             # Build label text and tooltips
             label_text = f"⚠️ {param_name}" if is_advanced else param_name
             label = QLabel(label_text)
-            
+
             if is_advanced:
                 label.setToolTip(f"ADVANCED: {help_text}")
             else:
@@ -371,19 +372,19 @@ class ParamSection(QWidget):
                 widget.setCurrentText(str(default_val))
                 widget.currentTextChanged.connect(lambda _, p=param_name: self.check_if_changed(p))
                 widget.currentTextChanged.connect(self.notify_global_update)
-                
+
             elif param_type == int or "int" in type_str:
                 widget = QLineEdit()
                 widget.setValidator(QIntValidator())
                 widget.setText(str(default_val))
                 widget.textChanged.connect(lambda _, p=param_name: self.check_if_changed(p))
-                
+
             elif param_type == float or "float" in type_str:
                 widget = QLineEdit()
                 widget.setValidator(QDoubleValidator())
                 widget.setText(str(default_val))
                 widget.textChanged.connect(lambda _, p=param_name: self.check_if_changed(p))
-                
+
             elif param_type == list or "list" in type_str:
                 options = param.get("options", [])
                 if param.get("exclusive", True):
@@ -406,12 +407,12 @@ class ParamSection(QWidget):
                 else:
                     widget.setValue(15)
                 widget.valueChanged.connect(lambda _, p=param_name: self.check_if_changed(p))
-                
+
             elif param_type == "json_file":
                 widget = FilePickerWidget(default_val=default_val, file_filter="JSON Files (*.json)")
                 widget.textChanged.connect(lambda _, p=param_name: self.check_if_changed(p))
-                
-            else: 
+
+            else:
                 widget = QLineEdit()
                 widget.setText(str(default_val))
                 widget.textChanged.connect(lambda _, p=param_name: self.check_if_changed(p))
@@ -447,7 +448,7 @@ class ParamSection(QWidget):
     def update_theme_colors(self):
         self.title_label.style().unpolish(self.title_label)
         self.title_label.style().polish(self.title_label)
-        
+
     def is_different(self, val_a, val_b, param_type=None):
         """Compares two parameter values to determine if they differ."""
         type_str = str(param_type).lower()
@@ -566,7 +567,7 @@ class ParamSection(QWidget):
                         normal_items.append(item)
                         state = Qt.Checked if item.text() in defaults else Qt.Unchecked
                         item.setCheckState(state)
-                    
+
                     # Sync toggle select all item
                     toggle_item = model.item(1)
                     if toggle_item and normal_items:
@@ -637,7 +638,7 @@ class ParamSection(QWidget):
 
         for hw in self.header_widgets:
             hw.setVisible(has_visible_rows)
-            
+
         self.setVisible(has_visible_rows)
 
     def has_any_changes(self):
@@ -663,7 +664,7 @@ class ParamSection(QWidget):
             for cond in dep["conditions"]:
                 parent_name = cond.get("parent_name") or cond.get("parent")
                 required_val = str(cond.get("depends_value") if "depends_value" in cond else cond.get("value", "True"))
-                
+
                 parent_info = self.widgets.get(parent_name)
                 if not parent_info:
                     all_conditions_met = False
@@ -745,7 +746,7 @@ class ParamSection(QWidget):
                 toggle_item.setCheckState(Qt.Checked if all_checked else Qt.Unchecked)
 
             self._updating_checkstates = False
-            
+
             if param_name:
                 self.update_dropdown_label(param_name)
                 self.check_if_changed(param_name)
@@ -813,7 +814,7 @@ class ParamSection(QWidget):
 
         selected = self._get_checked_items(widget)
         widget.lineEdit().setText(", ".join(selected) if selected else "<None Selected>")
-        
+
     # def update_annotation_dropdown_from_loaded_files(self, bubble_widgets, button1):
     #     file_paths = [bubble.file_path for bubble in bubble_widgets.values()]
     #     if not file_paths:
@@ -822,12 +823,12 @@ class ParamSection(QWidget):
     #     # 1. Start the UI immediately
     #     progress = QProgressDialog("Accessing Workers...", "Cancel", 0, len(file_paths), self)
     #     progress.setWindowModality(Qt.WindowModality.WindowModal)
-    #     progress.setMinimumDuration(0) 
+    #     progress.setMinimumDuration(0)
     #     progress.setValue(0)
-        
+
     #     # Force the UI to draw the window NOW before we start the loop
     #     progress.show()
-    #     QApplication.processEvents() 
+    #     QApplication.processEvents()
 
     #     annotation_sets = []
 
@@ -843,7 +844,7 @@ class ParamSection(QWidget):
     #         # This call is now nearly instant because the process is already warm
     #         future = self.file_executor.submit(_extract_annotations, path)
     #         try:
-    #             labels_list = future.result() 
+    #             labels_list = future.result()
     #             if labels_list:
     #                 annotation_sets.append(set(labels_list))
     #         except Exception as e:
@@ -870,10 +871,10 @@ class ProgressBubble(QWidget):
         file_path (str): Associated file path stored with the bubble.
 
     """
-        
+
     clicked = Signal(object)
     rightClicked = Signal(object, QPoint)
-    
+
     def __init__(self, display_name, file_path):
         super().__init__()
 
@@ -964,7 +965,7 @@ class ProgressBubble(QWidget):
             else:
                 rect.setStyleSheet("background-color: white; border: 1px solid gray;")
 
-                
+
     def mark_cancelled(self):
         for i, rect in enumerate(self.rects):
             if i < self.current_step:
@@ -1074,7 +1075,7 @@ class FlaresBaseWidget(QWidget):
         model.itemChanged.connect(on_item_changed)
         combo.setInsertPolicy(QComboBox.NoInsert)
         return combo
-    
+
 
     # def _get_checked_items(self, combo):
     #     model = combo.model()
@@ -1084,20 +1085,20 @@ class FlaresBaseWidget(QWidget):
     #         if item.checkState() == Qt.Checked:
     #             checked.append(item.text())
     #     return checked
-    
+
     def _get_checked_items(
         self,
         combo: QComboBox | None = None
     ) -> list[str]:
 
         target = combo if combo is not None else getattr(self, 'participant_dropdown', None)
-        
+
         if target is None or target.model() is None:
             return []
 
         model = target.model()
         checked_items = []
-        
+
         # Exclusion list: any item text that should never be treated as data
         forbidden = {"Toggle All", "Select All", "<None Selected>", "Toggle"}
 
@@ -1108,7 +1109,7 @@ class FlaresBaseWidget(QWidget):
                 # Only add if it's not a 'UI control' item
                 if text not in forbidden and not text.startswith("Toggle"):
                     checked_items.append(text)
-                    
+
         return checked_items
 
 
@@ -1125,7 +1126,7 @@ class FlaresBaseWidget(QWidget):
 
         # 1. Figure out which dropdown we are talking to
         target_combo = combo if combo is not None else getattr(self, "participant_dropdown", None)
-        
+
         if target_combo is None:
             return # Safety check: nothing to update
 
@@ -1141,11 +1142,11 @@ class FlaresBaseWidget(QWidget):
         # 3. Conditional trigger for event updates
         # We only update events if we aren't in one of the excluded viewers
         excluded_viewers = {
-            "ParticipantImage", 
-            "ParticipantFoldChannels", 
-            "ExportToCSV", 
+            "ParticipantImage",
+            "ParticipantFoldChannels",
+            "ExportToCSV",
         }
-        
+
         if getattr(self, "caller", None) not in excluded_viewers:
             self._update_event_dropdown()
 
@@ -1162,7 +1163,7 @@ class FlaresBaseWidget(QWidget):
 
     def _update_event_dropdown(self):
         is_split_group = hasattr(self, 'participant_dropdown_a') and hasattr(self, 'participant_dropdown_b')
-        
+
         bypass = False
         main_win = next((w for w in QApplication.topLevelWidgets() 
                         if w.objectName() == "MainApplication" or hasattr(w, "missing_events_bypass")), None)
@@ -1199,7 +1200,7 @@ class FlaresBaseWidget(QWidget):
 
             if not bypass:
                 final_annotations = set.intersection(*(sets_a + sets_b))
-            else:                
+            else:
                 all_events_a = {event for s in sets_a for event in s}
                 all_events_b = {event for s in sets_b for event in s}
 
@@ -1216,7 +1217,7 @@ class FlaresBaseWidget(QWidget):
                         valid_b.add(event)
 
                 final_annotations = valid_a.intersection(valid_b)
-                
+
         else:
             names = self._get_checked_items(self.participant_dropdown)
             if not names:
@@ -1288,8 +1289,7 @@ class FlaresBaseWidget(QWidget):
             self._updating_checkstates = False
 
         model.itemChanged.connect(on_item_changed)
-        
-    
+
 
     def update_participant_list_for_group(self, group_name=None, combo=None):
 
@@ -1323,7 +1323,7 @@ class FlaresBaseWidget(QWidget):
         # 4. Refresh the Model
         model = target_combo.model()
         model.clear()
-        
+
         for text in ["<None Selected>", "Toggle Select All"]:
             item = QStandardItem(str(text))
             if text == "Toggle Select All":
@@ -1343,7 +1343,7 @@ class FlaresBaseWidget(QWidget):
         target_combo.setEnabled(True)
         # Get file paths (handles target_group as int or str)
         group_file_paths = self.group_to_paths.get(target_group, [])
-        
+
         for i, file_path in enumerate(group_file_paths, start=1):
             short_label = f"Participant {i}"
             display_label = f"{short_label} ({os.path.basename(file_path)})"
@@ -1363,8 +1363,8 @@ class InterGroupUIMixin:
     participant_map: dict[str, str]
 
     def setup_inter_group_ui(
-        self, 
-        index_texts: Sequence[str], 
+        self,
+        index_texts: Sequence[str],
         placeholder_text: str = ""
     ) -> None:
 
@@ -1394,7 +1394,7 @@ class InterGroupUIMixin:
         self.event_dropdown = QComboBox()
         self.event_dropdown.addItem("<None Selected>")
 
-        
+
         self.participant_dropdown_a = self._create_multiselect_dropdown([])
         line_edit = self.participant_dropdown_a.lineEdit()
         assert line_edit is not None, "Dropdown A must be editable to have a lineEdit"
@@ -1453,10 +1453,10 @@ class InterGroupUIMixin:
     def _update_group_b_options(self):
         """Triggered when Group B changes: Update Group A to exclude B's choice"""
         selected_b = self.group_b_dropdown.currentText()
-        
+
         # Refresh Group A and exclude what was just picked in Group B
         self._refresh_group_dropdown(self.group_a_dropdown, exclude=selected_b)
-        
+
         # Update the participants for Group B
         self.update_participant_list_for_group(selected_b, self.participant_dropdown_b)
         self._update_event_dropdown()
@@ -1464,10 +1464,10 @@ class InterGroupUIMixin:
     def _update_group_a_options(self):
         """Triggered when Group A changes: Update Group B to exclude A's choice"""
         selected_a = self.group_a_dropdown.currentText()
-        
+
         # Refresh Group B and exclude what was just picked in Group A
         self._refresh_group_dropdown(self.group_b_dropdown, exclude=selected_a)
-        
+
         # Update the participants for Group A
         self.update_participant_list_for_group(selected_a, self.participant_dropdown_a)
         self._update_event_dropdown()
@@ -1491,8 +1491,6 @@ class InterGroupUIMixin:
             dropdown.setCurrentIndex(0)  # Reset to "<None Selected>"
         dropdown.blockSignals(False)
 
-    
-
 
     def _get_file_paths_from_labels(self, labels, group_name):
         file_paths = []
@@ -1516,14 +1514,14 @@ class InterGroupUIMixin:
                 file_paths.append(file_path)
 
         return file_paths
-    
+
     def get_common_request_data(
         self,
         parameterized_indexes: dict[int, list[dict[str, Any]]],
         df_ind_dict: dict[str, DataFrame] | None = None,
         contrast_dfs: dict[str, dict[str, Any]] | None = None,
     ) -> tuple[str | None, list[str], list[str], list[str], list[int], dict[str, Any]] | None:
-        
+
         selected_event = self.event_dropdown.currentText()
         if selected_event == "<None Selected>":
             selected_event = None
@@ -1562,7 +1560,7 @@ class InterGroupUIMixin:
         }
 
         dynamic_rois = []
-        
+
         if df_ind_dict:
             roi_set = set()
             for fp in all_selected_paths:
@@ -1572,7 +1570,7 @@ class InterGroupUIMixin:
 
             if roi_set:
                 dynamic_rois = sorted(list(roi_set))
-                
+
         # Fallback to prevent UI crashes if JSON file doesn't exist or is empty
         if not dynamic_rois:
             dynamic_rois = ["Option 1", "Option 2"]
@@ -1588,7 +1586,7 @@ class InterGroupUIMixin:
                     # If an event is selected, only keep contrasts containing the event name as a substring.
                     if selected_event is None or selected_event in contrast_name:
                         contrast_set.add(contrast_name)
-                        
+
             # Sort them cleanly for the UI
             dynamic_contrasts = sorted(list(contrast_set))
 
@@ -1634,15 +1632,15 @@ class InterGroupUIMixin:
             selected_indexes,
             param_values,
         )
-    
+
 
 class CSVUIMixin:
 
     def setup_csv_ui(
-        self, 
+        self,
         index_texts: Sequence[str]
     ) -> None:
-        
+
         # Create mappings: file_path -> participant label and dropdown display text
         self.participant_map: dict[str, str] = {}  # file_path -> "Participant 1"
         self.participant_dropdown_items: list[str] = []  # "Participant 1 (filename)"
@@ -1659,7 +1657,7 @@ class CSVUIMixin:
 
         self.participant_dropdown: FullClickComboBox = self._create_multiselect_dropdown(self.participant_dropdown_items)
         self.participant_dropdown.currentIndexChanged.connect(self.update_participant_dropdown_label)
-              
+
         self.index_texts = index_texts
 
         self.image_index_dropdown: FullClickComboBox = self._create_multiselect_dropdown(self.index_texts)
@@ -1693,14 +1691,14 @@ class CSVUIMixin:
 class IntraGroupUIMixin:
 
     def setup_intra_group_ui(
-        self, 
-        index_texts: Sequence[str], 
+        self,
+        index_texts: Sequence[str],
         placeholder_text: str = ""
     ) -> None:
-            
+
         self.show_all_events = True
         self._updating_checkstates = False
-        
+
         # Create mappings: file_path -> participant label and dropdown display text
         self.participant_map: dict[str, str] = {}  # file_path -> "Participant 1"
         self.participant_dropdown_items = []  # "Participant 1 (filename)"
@@ -1771,7 +1769,7 @@ class IntraGroupUIMixin:
         df_ind_dict: dict[str, DataFrame] | None = None,
         contrast_dfs: dict[str, dict[str, Any]] | None = None,
     ) -> tuple[str | None, list[str], list[int], dict[str, Any]] | None:
-        
+
         selected_event = self.event_dropdown.currentText()
         if selected_event == "<None Selected>":
             selected_event = None
@@ -1793,7 +1791,7 @@ class IntraGroupUIMixin:
                 if raw is not None and hasattr(raw, "annotations"):
                     if selected_event in raw.annotations.description:
                         valid_paths.append(fp)
-            
+
             selected_file_paths = valid_paths
 
         selected_indexes = [
@@ -1803,7 +1801,7 @@ class IntraGroupUIMixin:
         if not selected_file_paths:
             print("No participants selected.")
             return
-    
+
 
         # Inject full_text from index_texts
         for idx, params_list in parameterized_indexes.items():
@@ -1814,7 +1812,7 @@ class IntraGroupUIMixin:
         indexes_needing_params = {idx: parameterized_indexes[idx] for idx in selected_indexes if idx in parameterized_indexes}
 
         dynamic_rois = []
-        
+
         if df_ind_dict:
             roi_set = set()
             for fp in selected_file_paths:
@@ -1840,7 +1838,7 @@ class IntraGroupUIMixin:
                     # If an event is selected, only keep contrasts containing the event name as a substring.
                     if selected_event is None or selected_event in contrast_name:
                         contrast_set.add(contrast_name)
-                        
+
             # Sort them cleanly for the UI
             dynamic_contrasts = sorted(list(contrast_set))
 
@@ -1868,7 +1866,6 @@ class IntraGroupUIMixin:
                     param_info["options"] = dynamic_contrasts
                     param_info["default"] = dynamic_contrasts[0] if dynamic_contrasts else ""
 
-        
         param_values = {}
         if indexes_needing_params:
             dialog = ParameterInputDialog(indexes_needing_params, parent=self)
@@ -1878,21 +1875,22 @@ class IntraGroupUIMixin:
                     return
             else:
                 return
-            
+
         return (
             selected_event,
             selected_file_paths,
             selected_indexes,
             param_values,
         )
-    
+
+
 class ParticipantUIMixin:
     def setup_participant_ui(
-        self, 
+        self,
         index_texts: Sequence[str],
         placeholder_text: str = ""
     ) -> None:
-        
+
         # Create mappings: file_path -> participant label and dropdown display text
         self.participant_map: dict[str, str] = {}  # file_path -> "Participant 1"
         self.participant_dropdown_items = []  # "Participant 1 (filename)"
@@ -1913,7 +1911,6 @@ class ParticipantUIMixin:
         self.event_dropdown = QComboBox()
         self.event_dropdown.addItem("<None Selected>")
 
-                
         self.index_texts = index_texts
 
         self.image_index_dropdown = self._create_multiselect_dropdown(self.index_texts)
@@ -1968,8 +1965,6 @@ class ParticipantUIMixin:
         ]
 
 
-        
-
         # Inject full_text from index_texts
         for idx, params_list in parameterized_indexes.items():
             full_text = self.index_texts[idx] if idx < len(self.index_texts) else f"{idx} (No label found)"
@@ -1987,10 +1982,10 @@ class ParticipantUIMixin:
                     return
             else:
                 return
-            
+
         return (
-        selected_event,
-        selected_file_paths,
-        selected_indexes,
-        param_values,
+            selected_event,
+            selected_file_paths,
+            selected_indexes,
+            param_values,
         )

src/shared/inspiration.py

@@ -0,0 +1,117 @@
+"""
+Filename: inspiration.py
+Description: Contains inspiration quotes to be shown at random
+Note: Compliant with pylance strict type checking
+
+Author: Tyler de Zeeuw
+License: GPL-3.0
+"""
+
+# Built-in imports
+import random
+
+FNIRS_QUOTES = [
+    "Understanding the brain through light and data.",
+    "Every signal offers another perspective on brain function.",
+    "Exploring the relationship between brain activity and behavior.",
+    "Using light to investigate the complexity of the human brain.",
+    "Turning neural measurements into meaningful insights.",
+    "A deeper understanding of the brain begins with better questions.",
+    "Studying the brain means looking beyond what we can see.",
+    "Connecting brain activity to the way we think, feel, and act.",
+    "Even small changes in brain signals can reveal meaningful patterns.",
+    "Advancing neuroscience through new ways of measuring brain activity.",
+    "The brain is complex, and every measurement adds another piece.",
+    "Using fNIRS to explore the connection between the brain and the world around us.",
+    "Good science begins with curiosity and grows through careful observation.",
+    "There is still so much to learn about how the brain works.",
+    "Measuring brain activity is only the beginning; understanding it is the goal.",
+    "Exploring what brain activity can tell us about the human experience.",
+    "Every experiment brings a new opportunity to understand the brain.",
+    "The more we measure, the more questions we learn to ask.",
+    "Neuroscience advances through careful measurements and thoughtful interpretation.",
+    "Understanding brain function requires looking at both signals and context.",
+    "Each dataset offers a different view of the brain in action.",
+    "Exploring the neural processes behind everyday human experiences.",
+    "Better measurements can lead to better questions about the brain.",
+    "The challenge is not just collecting data, but understanding what it means.",
+    "Brain activity reflects a complex interaction of processes and experiences.",
+    "Scientific progress begins with observing what we do not yet understand.",
+    "Each discovery builds on the questions that came before it.",
+    "There is more to brain activity than a single signal can reveal.",
+    "New tools create new opportunities to investigate old questions.",
+    "The goal is to connect what we measure with what we want to understand.",
+    "Neural signals provide clues to the processes underlying human behavior.",
+    "A better understanding of brain function starts with better evidence.",
+    "The value of a measurement lies in what it helps us understand.",
+    "Every experiment adds another perspective to a complex picture.",
+    "Scientific discovery often begins with noticing something unexpected.",
+    "Understanding the brain is an ongoing process of questioning and refinement.",
+    "The best insights emerge when data meets thoughtful interpretation.",
+    "Research moves forward when curiosity is matched with rigorous methods.",
+    "There is always another question worth exploring.",
+    "Investigating the brain means embracing complexity rather than avoiding it.",
+    "Progress comes from asking precise questions about complicated systems.",
+    "The brain does not work in isolation from the person or environment.",
+    "Understanding behavior requires more than observing behavior alone.",
+    "The smallest details can sometimes change how we interpret the bigger picture.",
+    "Every method offers a different window into brain function.",
+    "Different perspectives help build a more complete understanding of the brain.",
+    "Good research turns uncertainty into questions that can be investigated.",
+    "The process of discovery is as important as the result.",
+    "Meaningful findings begin with reliable data and careful reasoning.",
+    "The brain is not simple, and our methods should reflect that complexity.",
+    "Scientific understanding grows when evidence challenges our assumptions.",
+    "Research is a process of learning what the data can—and cannot—tell us.",
+    "The most useful findings are those that move understanding forward.",
+    "Each new method expands the questions we can ask about the brain.",
+    "The path to understanding is built from observations, questions, and evidence.",
+    "Neuroscience is about understanding the processes behind the patterns.",
+    "The aim is not simply to measure brain activity, but to interpret it meaningfully.",
+    "Better tools help us investigate the questions that matter.",
+    "Progress in neuroscience depends on both technical precision and human curiosity.",
+    "The brain is complex, but every careful observation helps clarify a part of it.",
+    "Understanding brain function means connecting measurements to meaningful outcomes.",
+    "Research turns curiosity into evidence and evidence into understanding.",
+    "There is a story behind every pattern, but evidence determines what we can conclude.",
+    "New insights emerge when we approach familiar questions from different angles.",
+    "The strongest conclusions begin with careful measurements.",
+    "Understanding the brain takes more than data; it takes context.",
+    "The questions we ask shape what we learn from the brain.",
+    "Good research is not about finding answers quickly, but finding them carefully.",
+    "Every result contributes to a larger conversation about how the brain works.",
+    "The human brain remains an evolving question for science.",
+    "Measuring brain activity gives us another way to investigate human cognition.",
+    "The connection between brain function and behavior is rarely straightforward.",
+    "Scientific progress comes from combining new methods with careful interpretation.",
+    "The more we learn about the brain, the better our questions become.",
+    "Research is the practice of making uncertainty more understandable.",
+    "Understanding the brain means being willing to revise what we think we know.",
+    "Each experiment helps define what we know and what remains uncertain.",
+    "The most interesting findings often begin with questions that have no easy answers.",
+    "The purpose of research is to move beyond assumptions toward evidence.",
+    "A measurement becomes useful when it helps answer a meaningful question.",
+    "Neuroscience brings together technology, observation, and the study of human experience.",
+    "fNIRS offers another way to investigate changes in brain hemodynamics.",
+    "Optical measurements provide a noninvasive approach to studying brain function.",
+    "Studying brain function outside the lab can reveal aspects of everyday cognition.",
+    "The flexibility of fNIRS opens new possibilities for human neuroscience research.",
+    "Brain measurements become more meaningful when considered alongside behavior.",
+    "fNIRS provides a useful perspective on the relationship between physiology and cognition.",
+    "Understanding the strengths and limitations of a method is part of good science.",
+    "The future of neuroscience depends on asking better questions, not just collecting more data.",
+    "Technology expands what we can measure, while critical thinking guides what we conclude.",
+    "The goal of neuroscience is not just to observe the brain, but to understand its function.",
+    "Every research method brings its own perspective, possibilities, and limitations.",
+    "The most meaningful discoveries connect technical advances to real-world questions.",
+    "Better ways to study the brain can lead to a better understanding of human experience.",
+    "Science progresses when we remain curious about what the evidence cannot yet explain.",
+    "Understanding the brain is a long-term effort built on many small discoveries.",
+    "Behind every useful finding is a question worth investigating.",
+    "The value of research lies in what we learn, not just what we measure.",
+    "Good science makes room for complexity, uncertainty, and new perspectives.",
+    "The next insight may come from looking at a familiar problem in a different way.",
+]
+
+def get_quote() -> None:
+    return f"'{random.choice(FNIRS_QUOTES)}'"

src/shared/shareddata.py

@@ -8,12 +8,18 @@ License: GPL-3.0
 """
 
 # Built-in imports
+import json
 import os
+import subprocess
 import sys
 import platform
 
+try:
+    import winreg
+except ImportError:
+    winreg = None
 
-CURRENT_VERSION = "1.6.1"
+CURRENT_VERSION = "1.8.0"
 APP_NAME = "flares"
 APP_NAME_EXPANDED = "fNIRS Lightweight Analysis, Research, & Evaluation Suite"
 API_URL = f"https://git.research.dezeeuw.ca/api/v1/repos/tyler/{APP_NAME}/releases"
@@ -21,6 +27,7 @@ API_URL_SECONDARY = f"https://git.research2.dezeeuw.ca/api/v1/repos/tyler/{APP_N
 PLATFORM_NAME = platform.system().lower()
 CHANGELOG_URL = f"https://git.research.dezeeuw.ca/tyler/{APP_NAME}/raw/branch/main/changelog_major.md"
 WIKI_URL = f"https://git.research.dezeeuw.ca/tyler/{APP_NAME}/wiki"
+PLUGINS_URL = f"https://git.research.dezeeuw.ca/tyler/{APP_NAME}-plugins/raw/branch/main/plugins.json"
 
 
 PIPELINE_STAGES = [
@@ -71,10 +78,71 @@ DATA_SCHEMA = [
 ]
 
 
-def resource_path(relative_path: str) -> str:
-    """
-    Get absolute path to resource regardless of running directly or packaged using PyInstaller
-    """
+METRIC_REGISTRY = {
+    "Peak_Amp": "Peak_Amp",
+    "TTP": "Time_to_Peak",
+    "AUC": "AUC",
+    "Rising_Slope": "Rising_Slope",
+    "Recovery_Slope": "Recovery_Slope",
+    "FWHM": "FWHM",
+    "Onset_Latency": "Onset_Latency",
+    "P2P_Amp": "Peak_to_Peak_Amp",
+    "Signal_Std": "Signal_Std",
+    "RMS": "RMS",
+}
 
+
+def get_cpu_model_name():
+    """Detect detailed processor info, collapsing Windows registry whitespace padding."""
+    try:
+        system = platform.system()
+
+        if system == "Windows" and winreg is not None:
+            with winreg.OpenKey(
+                winreg.HKEY_LOCAL_MACHINE,
+                r"HARDWARE\DESCRIPTION\System\CentralProcessor\0",
+            ) as key:
+                raw_cpu_name, _ = winreg.QueryValueEx(key, "ProcessorNameString")
+            cpu_name = " ".join(raw_cpu_name.split())
+
+            command = (
+                "Get-CimInstance Win32_Processor | "
+                "Select-Object NumberOfCores, NumberOfLogicalProcessors, MaxClockSpeed | "
+                "ConvertTo-Json -Compress"
+            )
+            cpu = json.loads(subprocess.check_output(
+                ["powershell", "-NoProfile", "-Command", command],
+                text=True,
+                creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0),
+            ))
+            base_ghz = cpu["MaxClockSpeed"] / 1000
+            return (f"{cpu_name} @ {base_ghz:.1f}GHz "
+                    f"{cpu['NumberOfCores']}c/{cpu['NumberOfLogicalProcessors']}t")
+
+        if system == "Darwin":
+            return subprocess.check_output(
+                ["sysctl", "-n", "machdep.cpu.brand_string"], text=True
+            ).strip()
+
+        if system == "Linux":
+            with open("/proc/cpuinfo") as f:
+                for line in f:
+                    if "model name" in line:
+                        return line.split(":")[1].strip()
+    except Exception:
+        pass
+
+    return platform.processor() or "Multi-Core CPU"
+
+
+def resource_path(relative_path: str) -> str:
+    """Get absolute path to resource regardless of running directly or packaged using PyInstaller"""
     base_path = getattr(sys, "_MEIPASS", os.path.abspath("."))
-    return os.path.join(base_path, relative_path)
+    return os.path.join(base_path, relative_path)
+
+
+def get_app_dir() -> str:
+    """Returns the root directory of the application executable or working directory."""
+    if getattr(sys, 'frozen', False):
+        return os.path.dirname(sys.executable)
+    return os.getcwd()

src/window/about.py

@@ -12,6 +12,7 @@ from PySide6.QtWidgets import QWidget, QVBoxLayout, QLabel
 from PySide6.QtCore import Qt
 
 from src.shared.shareddata import APP_NAME, APP_NAME_EXPANDED, CURRENT_VERSION
+from src.shared.inspiration import get_quote
 
 
 class AboutWindow(QWidget):
@@ -30,12 +31,21 @@ class AboutWindow(QWidget):
         layout = QVBoxLayout()
         label = QLabel(f"About {APP_NAME.upper()}", self)
         label2 = QLabel(f"{APP_NAME_EXPANDED}", self)
-        label3 = QLabel(f"{APP_NAME.upper()} is licensed under the GPL-3.0 licence. For more information, visit https://www.gnu.org/licenses/gpl-3.0.en.html", self)
+        label3 = QLabel(
+        f'{APP_NAME.upper()} is licensed under the GPL-3.0 licence. '
+            'For more information, visit '
+            '<a href="https://www.gnu.org/licenses/gpl-3.0.en.html">'
+            'GNU GPL-3.0</a>',
+            self,
+        )
+        label3.setOpenExternalLinks(True)
         label4 = QLabel(f"Version v{CURRENT_VERSION}")
-                        
+        label5 = QLabel(f"{get_quote()}", self)
+
         layout.addWidget(label)
         layout.addWidget(label2)
         layout.addWidget(label3)
         layout.addWidget(label4)
+        layout.addWidget(label5)
 
         self.setLayout(layout)

src/window/plugins.py

@@ -0,0 +1,658 @@
+"""
+Filename: plugins.py
+Description: Plugins window
+Note: Compliant with pylance strict type checking
+
+Author: Tyler de Zeeuw
+License: GPL-3.0
+"""
+
+# Built-in imports
+import io
+import shutil
+import urllib.request
+import zipfile
+from pathlib import Path
+from typing import Any, cast
+
+# External library imports
+from PySide6.QtCore import Qt, QThread, Signal
+from PySide6.QtGui import QColor
+from PySide6.QtWidgets import (
+    QHBoxLayout, QLabel, QLineEdit, QListWidget, QListWidgetItem, QMessageBox,
+    QPushButton, QTabWidget, QTextBrowser, QVBoxLayout, QWidget, QProgressDialog
+)
+
+from plugin_manager import PluginManager, get_ssl_context, parse_version
+from src.shared.shareddata import APP_NAME, CURRENT_VERSION, PLUGINS_URL
+
+
+class RemoteFetchWorker(QThread):
+    """Background thread to fetch remote repository data without lagging the main UI."""
+    fetched = Signal(list, bool, str)  # (plugins_data, all_failed, fetch_type)
+
+    def __init__(self, manager: PluginManager, urls: list[str], fetch_type: str = "browser") -> None:
+        super().__init__()
+        self.manager = manager
+        self.urls = urls
+        self.fetch_type = fetch_type
+
+    def run(self) -> None:
+        plugins, all_failed = self.manager.fetch_remote_repositories(self.urls)
+        self.fetched.emit(plugins, all_failed, self.fetch_type)
+
+
+class PluginInstallWorker(QThread):
+    """Background worker to download, unpack, and install/update plugins with progress reporting."""
+    progress = Signal(int, int)  # (downloaded_bytes, total_bytes)
+    status_message = Signal(str)
+    finished = Signal(bool, str)  # (success, message_or_path)
+
+    def __init__(
+        self,
+        manager: PluginManager,
+        download_url: str,
+        plugin_id: str,
+        is_update: bool = False,
+        plugin_path_to_remove: Path | None = None
+    ) -> None:
+        super().__init__()
+        self.manager = manager
+        self.download_url = download_url
+        self.plugin_id = plugin_id
+        self.is_update = is_update
+        self.plugin_path_to_remove = plugin_path_to_remove
+
+    def run(self) -> None:
+        try:
+            self.status_message.emit("Connecting to server...")
+            req = urllib.request.Request(
+                self.download_url,
+                headers={"User-Agent": f"{APP_NAME}-PluginManager"},
+            )
+
+            with urllib.request.urlopen(req, timeout=30, context=get_ssl_context()) as response:
+                if response.status != 200:
+                    self.finished.emit(False, f"Download failed with HTTP status code {response.status}")
+                    return
+
+                total_size_str = response.headers.get("Content-Length")
+                total_size = int(total_size_str) if total_size_str and total_size_str.isdigit() else 0
+
+                self.status_message.emit("Downloading plugin archive...")
+                chunk_size = 8192
+                downloaded = 0
+                buffer = io.BytesIO()
+
+                while True:
+                    chunk = response.read(chunk_size)
+                    if not chunk:
+                        break
+                    buffer.write(chunk)
+                    downloaded += len(chunk)
+                    self.progress.emit(downloaded, total_size)
+
+                zip_bytes = buffer.getvalue()
+
+            if self.is_update and self.plugin_path_to_remove and self.plugin_path_to_remove.exists():
+                self.status_message.emit("Removing old version...")
+                if self.plugin_path_to_remove.is_dir():
+                    shutil.rmtree(self.plugin_path_to_remove)
+                else:
+                    self.plugin_path_to_remove.unlink()
+
+            self.status_message.emit("Unpacking and extracting files...")
+            with zipfile.ZipFile(io.BytesIO(zip_bytes)) as zip_ref:
+                zip_ref.extractall(self.manager.plugins_dir)
+
+            self.finished.emit(True, str(self.manager.plugins_dir))
+        except Exception as e:
+            self.finished.emit(False, str(e))
+
+
+class PluginsWindow(QWidget):
+
+    def __init__(self, parent: QWidget | None, plugin_manager: PluginManager) -> None:
+        super().__init__(None, Qt.WindowType.Window)
+
+        self.main_app_window = parent
+        self.manager: PluginManager = plugin_manager
+
+        self.setWindowTitle(f"{APP_NAME.upper()} - Plugins")
+        self.resize(750, 500)
+
+        self.repository_urls: list[str] = [PLUGINS_URL]
+        self.remote_plugins_data: list[dict[str, Any]] = []
+        self._has_fetched_remote: bool = False
+        self._fetch_worker: RemoteFetchWorker | None = None
+        self._install_worker: PluginInstallWorker | None = None
+        self._progress_dialog: QProgressDialog | None = None
+
+        # Refresh UI automatically if manager updates state
+        self.manager.plugins_changed.connect(self.refresh_installed_plugins)
+
+        main_layout = QVBoxLayout(self)
+        self.tab_widget = QTabWidget(self)
+
+        self.installed_tab = self._create_installed_tab()
+        self.browser_tab = self._create_browser_tab()
+
+        self.tab_widget.addTab(self.installed_tab, "Installed Plugins")
+        self.tab_widget.addTab(self.browser_tab, "Plugin Browser")
+        self.tab_widget.currentChanged.connect(self._on_tab_changed)
+
+        main_layout.addWidget(self.tab_widget)
+        self.setLayout(main_layout)
+
+        self.refresh_installed_plugins()
+        self.check_installed_updates()
+
+    def check_installed_updates(self) -> None:
+        """Asynchronously checks remote repositories for installed plugin updates."""
+        if self._fetch_worker is not None and self._fetch_worker.isRunning():
+            return
+
+        self._fetch_worker = RemoteFetchWorker(self.manager, self.repository_urls, fetch_type="updates")
+        self._fetch_worker.fetched.connect(self._on_remote_fetched)
+        self._fetch_worker.start()
+
+    def refresh_installed_plugins(self) -> None:
+        """Refreshes installed list using metadata from PluginManager and attaches update info."""
+        self.installed_list.clear()
+        plugins_info = self.manager.get_installed_plugins_info()
+
+        remote_map: dict[str, dict[str, Any]] = {}
+        if self._has_fetched_remote and self.remote_plugins_data:
+            for p in self.remote_plugins_data:
+                p_id = p.get("id") or p.get("name")
+                if p_id:
+                    remote_map[str(p_id)] = p
+
+        for info in plugins_info:
+            p_id = str(info.get("id", ""))
+            local_tuple = parse_version(str(info.get("version", "0.0.0")))
+
+            remote_plugin = remote_map.get(p_id)
+            if remote_plugin:
+                remote_ver = str(remote_plugin.get("version", "0.0.0"))
+                if parse_version(remote_ver) > local_tuple:
+                    info["update_available"] = True
+                    info["remote_version"] = remote_ver
+                    info["download_url"] = str(remote_plugin.get("download_url", ""))
+
+            display_text = f"{info['name']} (v{info.get('version', '1.0.0')})"
+            if info.get("update_available"):
+                display_text += f" [Update Available: v{info.get('remote_version')}]"
+            if info["is_disabled"]:
+                display_text += " [Disabled]"
+
+            item = QListWidgetItem(display_text, self.installed_list)
+            item.setData(Qt.ItemDataRole.UserRole, info)
+
+            if info.get("update_available"):
+                item.setForeground(QColor("#1976d2"))
+            elif info["is_disabled"]:
+                item.setForeground(QColor("#757575"))
+
+        if self.installed_list.count() == 0:
+            self.installed_list.addItem("No plugins installed.")
+            self._clear_details_panel()
+
+        if not self._has_fetched_remote:
+            self.check_installed_updates()
+        elif self.remote_plugins_data:
+            self._populate_browser_list()
+
+    def _on_installed_item_changed(self, current: QListWidgetItem | None, _: Any) -> None:
+        """Updates the right-hand details panel when a plugin is selected."""
+        if not current:
+            self._clear_details_panel()
+            self.btn_update_plugin.setEnabled(False)
+            return
+
+        info = current.data(Qt.ItemDataRole.UserRole)
+        if not isinstance(info, dict):
+            self._clear_details_panel()
+            self.btn_update_plugin.setEnabled(False)
+            return
+
+        plugin_info = cast(dict[str, Any], info)
+
+        name = str(plugin_info.get("name", "Unknown"))
+        version = str(plugin_info.get("version", "1.0.0"))
+        author = str(plugin_info.get("author", "Unknown"))
+        desc = str(plugin_info.get("description", "No description provided."))
+        is_disabled = bool(plugin_info.get("is_disabled", False))
+        path = str(plugin_info.get("path", ""))
+        update_available = bool(plugin_info.get("update_available", False))
+
+        self.lbl_plugin_title.setText(name)
+        self.lbl_plugin_meta.setText(f"<b>Version:</b> {version} &nbsp;|&nbsp; <b>Author:</b> {author}")
+
+        if update_available:
+            rem_ver = plugin_info.get("remote_version", "")
+            self.lbl_plugin_status.setText(f"<font color='#1976d2'><b>Status: Update v{rem_ver} Available!</b></font>")
+        elif is_disabled:
+            self.lbl_plugin_status.setText("<font color='#d32f2f'><b>Status: Disabled</b></font>")
+        else:
+            self.lbl_plugin_status.setText("<font color='#2e7d32'><b>Status: Active</b></font>")
+
+        self.txt_plugin_desc.setHtml(desc)
+        self.lbl_plugin_path.setText(f"<b>Path:</b> <code>{path}</code>")
+        self.btn_update_plugin.setEnabled(update_available)
+
+    def execute_plugin_installation(self, download_url: str, plugin_id: str, plugin_name: str, is_update: bool, plugin_path: Path | None) -> None:
+        """Sets up the progress dialog and starts the background installation/update worker."""
+        if self._install_worker is not None and self._install_worker.isRunning():
+            return
+
+        self._installation_finished_flag = False
+        action_label = "Updating" if is_update else "Installing"
+
+        self._progress_dialog = QProgressDialog(f"{action_label} '{plugin_name}'...", "Cancel", 0, 100, self)
+        self._progress_dialog.setMinimumDuration(0)  # Show the progress dialog instantly
+        self._progress_dialog.setWindowTitle(f"{action_label} Plugin")
+        self._progress_dialog.setWindowModality(Qt.WindowModality.WindowModal)
+        self._progress_dialog.setAutoClose(False)
+        self._progress_dialog.setAutoReset(False)
+        self._progress_dialog.canceled.connect(self._cancel_installation)
+        self._progress_dialog.show()
+
+        self._install_worker = PluginInstallWorker(self.manager, download_url, plugin_id, is_update, plugin_path)
+        self._install_worker.progress.connect(self._on_install_progress)
+        self._install_worker.status_message.connect(self._on_install_status)
+        self._install_worker.finished.connect(lambda success, msg: self._on_install_finished(success, msg, plugin_name, is_update))
+        self._install_worker.start()
+
+
+    def _cancel_installation(self) -> None:
+        """Handles manual user cancellation of the download/install progress."""
+        if getattr(self, "_installation_finished_flag", False):
+            return  # Ignore if triggered by closing the dialog programmatically on success
+
+        if self._install_worker and self._install_worker.isRunning():
+            self._install_worker.terminate()
+            self._install_worker.wait()
+            QMessageBox.warning(self, "Cancelled", "Plugin installation was cancelled.")
+
+    def _on_install_finished(self, success: bool, message: str, plugin_name: str, is_update: bool) -> None:
+        self._installation_finished_flag = True  # Prevent false cancellation triggers
+
+        if self._progress_dialog:
+            self._progress_dialog.close()
+            self._progress_dialog.deleteLater()
+            self._progress_dialog = None
+
+        action_word = "updated" if is_update else "installed"
+        action_verb = "update" if is_update else "install"
+
+        if success:
+            self.manager.reload_plugins()
+            QMessageBox.information(self, "Success", f"Successfully {action_word} '{plugin_name}'!")
+            self.refresh_installed_plugins()
+            if self._has_fetched_remote:
+                self._populate_browser_list()
+        else:
+            QMessageBox.critical(self, "Installation Failed", f"Could not {action_verb} plugin:\n{message}")
+
+    def _on_install_progress(self, downloaded: int, total: int) -> None:
+        if self._progress_dialog:
+            if total > 0:
+                self._progress_dialog.setMaximum(total)
+                self._progress_dialog.setValue(downloaded)
+                mb_down = downloaded / (1024 * 1024)
+                mb_total = total / (1024 * 1024)
+                self._progress_dialog.setLabelText(f"Downloading... ({mb_down:.2f} MB / {mb_total:.2f} MB)")
+            else:
+                self._progress_dialog.setMaximum(0)  # Infinite marquee progress if size is unknown
+                mb_down = downloaded / (1024 * 1024)
+                self._progress_dialog.setLabelText(f"Downloading... ({mb_down:.2f} MB downloaded)")
+
+    def _on_install_status(self, message: str) -> None:
+        if self._progress_dialog:
+            self._progress_dialog.setLabelText(message)
+
+
+    def update_selected_plugin(self) -> None:
+        """Triggers the background update process for the selected installed plugin."""
+        selected = self.installed_list.currentItem()
+        if not selected:
+            return
+        raw_info = selected.data(Qt.ItemDataRole.UserRole)
+        if not isinstance(raw_info, dict):
+            return
+
+        info = cast(dict[str, Any], raw_info)
+        download_url = info.get("download_url", "")
+        plugin_id = info.get("id", "unnamed")
+        plugin_name = info.get("name", "Plugin")
+        plugin_path = info.get("path")
+
+        if not download_url:
+            QMessageBox.warning(self, "Update Failed", "No download URL provided for this update.")
+            return
+
+        path_obj = Path(plugin_path) if isinstance(plugin_path, str) and plugin_path else (plugin_path if isinstance(plugin_path, Path) else None)
+        self.execute_plugin_installation(download_url, plugin_id, plugin_name, is_update=True, plugin_path=path_obj)
+
+    def install_selected_plugin(self) -> None:
+        """Triggers the background installation/update process from the browser tab."""
+        selected = self.browser_list.currentItem()
+        if not selected:
+            return
+        data = selected.data(Qt.ItemDataRole.UserRole)
+        if not isinstance(data, dict):
+            return
+
+        plugin_data = cast(dict[str, Any], data)
+
+        update_available = bool(selected.data(Qt.ItemDataRole.UserRole + 3))
+        plugin_id = str(plugin_data.get("id", "unnamed"))
+        plugin_name = str(plugin_data.get("name", "Plugin"))
+        download_url = str(plugin_data.get("download_url", ""))
+
+        if not download_url:
+            QMessageBox.warning(self, "Error", "No download URL provided for this plugin.")
+            return
+
+        # Find existing local path if updating an installed plugin
+        existing_path: Path | None = None
+        installed_info = self.manager.get_installed_plugins_info()
+        for info in installed_info:
+            if info.get("id") == plugin_id or info.get("name") == plugin_name:
+                p = info.get("path")
+                if isinstance(p, Path):
+                    existing_path = p
+                elif isinstance(p, str):
+                    existing_path = Path(p)
+                break
+
+        self.execute_plugin_installation(download_url, plugin_id, plugin_name, is_update=update_available, plugin_path=existing_path)
+
+    def _on_remote_fetched(self, plugins: list[dict[str, Any]], all_failed: bool, fetch_type: str) -> None:
+        """Callback executed on the main UI thread when remote fetching finishes."""
+        self.remote_plugins_data = plugins
+        self._has_fetched_remote = True
+        self.btn_fetch.setEnabled(True)
+
+        if fetch_type == "updates":
+            self.refresh_installed_plugins()
+            return
+
+        if plugins:
+            self._populate_browser_list()
+        elif all_failed:
+            self.browser_list.clear()
+            self.browser_list.addItem("Unable to load plugins from configured repositories.")
+        else:
+            self.browser_list.clear()
+            self.browser_list.addItem("No plugins found across configured repositories.")
+
+    def fetch_remote_plugins(self) -> None:
+        """Asynchronously fetches remote plugins on a background thread for the browser."""
+        if self._fetch_worker is not None and self._fetch_worker.isRunning():
+            return
+
+        self.browser_list.clear()
+        self.browser_list.addItem("Fetching remote repositories...")
+        self.btn_install.setEnabled(False)
+        self.btn_fetch.setEnabled(False)
+
+        self._fetch_worker = RemoteFetchWorker(self.manager, self.repository_urls, fetch_type="browser")
+        self._fetch_worker.fetched.connect(self._on_remote_fetched)
+        self._fetch_worker.start()
+
+    def _populate_browser_list(self) -> None:
+        """Populates the browser tab list and evaluates compatibility, installation, and updates."""
+        self.browser_list.clear()
+
+        installed_info = self.manager.get_installed_plugins_info()
+        installed_map: dict[str, dict[str, Any]] = {}
+        for p in installed_info:
+            p_id = p.get("id")
+            p_name = p.get("name")
+            if p_id:
+                installed_map[str(p_id)] = p
+            if p_name:
+                installed_map[str(p_name)] = p
+
+        for plugin in self.remote_plugins_data:
+            name = plugin.get("name", "Unknown")
+            p_id = plugin.get("id", "")
+            version = plugin.get("version", "v0.0")
+            desc = plugin.get("description", "")
+            platforms = str(plugin.get("platforms", []))
+            min_v_str = plugin.get("min_app_version", "0.0.0")
+
+            is_platform_ok = not platforms or self.manager.current_platform in platforms
+            is_version_ok = self.manager.current_app_version >= parse_version(min_v_str)
+            is_compatible = is_platform_ok and is_version_ok
+
+            incompat_reasons: list[str] = []
+            if not is_platform_ok:
+                plat_str = ", ".join(platforms) if isinstance(platforms, list) else str(platforms)
+                incompat_reasons.append(f"Requires platform: {plat_str}")
+            if not is_version_ok:
+                incompat_reasons.append(f"Requires App v{min_v_str}+")
+
+            installed_match = installed_map.get(str(p_id)) or installed_map.get(str(name))
+            is_installed = installed_match is not None
+
+            update_available = False
+            remote_ver_str = str(plugin.get("version", "0.0.0"))
+            if is_installed:
+                local_ver_str = str(installed_match.get("version", "0.0.0"))
+                if parse_version(remote_ver_str) > parse_version(local_ver_str):
+                    update_available = True
+
+            display_text = f"{name} (v{version}) - {desc}"
+            if update_available:
+                display_text += f" [Update Available: v{remote_ver_str}]"
+            elif is_installed:
+                display_text += " [Installed]"
+            elif incompat_reasons:
+                reason_str = "; ".join(incompat_reasons)
+                display_text += f" [Incompatible: {reason_str}]"
+
+            item = QListWidgetItem(display_text, self.browser_list)
+            item.setData(Qt.ItemDataRole.UserRole, plugin)
+            item.setData(Qt.ItemDataRole.UserRole + 1, is_compatible)
+            item.setData(Qt.ItemDataRole.UserRole + 2, is_installed)
+            item.setData(Qt.ItemDataRole.UserRole + 3, update_available)
+
+            if update_available:
+                item.setForeground(QColor("#1976d2"))
+            elif is_installed:
+                item.setForeground(QColor("#2e7d32"))
+            elif not is_compatible:
+                item.setForeground(QColor("#d32f2f"))
+
+    def _on_tab_changed(self, index: int) -> None:
+        if index == 1 and not self._has_fetched_remote:
+            self.fetch_remote_plugins()
+
+    def _on_browser_item_changed(self, current: QListWidgetItem | None, _: Any) -> None:
+        if current:
+            is_compatible = bool(current.data(Qt.ItemDataRole.UserRole + 1))
+            is_installed = bool(current.data(Qt.ItemDataRole.UserRole + 2))
+            update_available = bool(current.data(Qt.ItemDataRole.UserRole + 3))
+
+            if update_available:
+                self.btn_install.setText("Update Plugin")
+                self.btn_install.setEnabled(is_compatible)
+            elif is_installed:
+                self.btn_install.setText("Install Plugin")
+                self.btn_install.setEnabled(False)
+            else:
+                self.btn_install.setText("Install Plugin")
+                self.btn_install.setEnabled(is_compatible)
+        else:
+            self.btn_install.setText("Install Plugin")
+            self.btn_install.setEnabled(False)
+
+    def _on_add_repo(self) -> None:
+        """Adds a custom repository URL and re-fetches plugins."""
+        url = self.repo_input.text().strip()
+        if url and url not in self.repository_urls:
+            self.repository_urls.append(url)
+            self.repo_input.clear()
+            self.fetch_remote_plugins()
+
+    def _create_installed_tab(self) -> QWidget:
+        tab = QWidget()
+        layout = QVBoxLayout(tab)
+
+        path_layout = QHBoxLayout()
+        path_label = QLabel(f"<b>Plugins Directory:</b> <code>{self.manager.plugins_dir}</code>", tab)
+        btn_open_folder = QPushButton("Open Folder", tab)
+        btn_open_folder.setToolTip("Open this directory in Explorer / Finder")
+        btn_open_folder.clicked.connect(self.manager.open_plugins_directory)
+
+        path_layout.addWidget(path_label)
+        path_layout.addStretch()
+        path_layout.addWidget(btn_open_folder)
+
+        content_layout = QHBoxLayout()
+
+        self.installed_list = QListWidget(tab)
+        self.installed_list.currentItemChanged.connect(self._on_installed_item_changed)
+
+        self.details_panel = QWidget(tab)
+        details_layout = QVBoxLayout(self.details_panel)
+        details_layout.setContentsMargins(10, 0, 0, 0)
+
+        self.lbl_plugin_title = QLabel("Select a plugin", self.details_panel)
+        self.lbl_plugin_title.setStyleSheet("font-size: 13pt; font-weight: bold;")
+
+        self.lbl_plugin_meta = QLabel("", self.details_panel)
+        self.lbl_plugin_status = QLabel("", self.details_panel)
+
+        self.txt_plugin_desc = QTextBrowser(self.details_panel)
+        self.txt_plugin_desc.setPlaceholderText("Select an installed plugin to view details...")
+
+        self.lbl_plugin_path = QLabel("", self.details_panel)
+        self.lbl_plugin_path.setTextInteractionFlags(Qt.TextInteractionFlag.TextSelectableByMouse)
+        self.lbl_plugin_path.setWordWrap(True)
+
+        details_layout.addWidget(self.lbl_plugin_title)
+        details_layout.addWidget(self.lbl_plugin_meta)
+        details_layout.addWidget(self.lbl_plugin_status)
+        details_layout.addWidget(QLabel("<b>Description:</b>", self.details_panel))
+        details_layout.addWidget(self.txt_plugin_desc)
+        details_layout.addWidget(self.lbl_plugin_path)
+
+        content_layout.addWidget(self.installed_list, stretch=1)
+        content_layout.addWidget(self.details_panel, stretch=1)
+
+        btn_layout = QHBoxLayout()
+        btn_refresh = QPushButton("Refresh List", tab)
+        self.btn_update_plugin = QPushButton("Update Plugin", tab)
+        self.btn_update_plugin.setEnabled(False)
+        self.btn_update_plugin.setStyleSheet("font-weight: bold; color: #1976d2;")
+        btn_enable = QPushButton("Enable / Disable", tab)
+        btn_uninstall = QPushButton("Uninstall", tab)
+
+        btn_refresh.clicked.connect(self.refresh_installed_plugins)
+        self.btn_update_plugin.clicked.connect(self.update_selected_plugin)
+        btn_enable.clicked.connect(self.toggle_enable_disable)
+        btn_uninstall.clicked.connect(self.uninstall_plugin)
+
+        btn_layout.addWidget(btn_refresh)
+        btn_layout.addWidget(self.btn_update_plugin)
+        btn_layout.addStretch()
+        btn_layout.addWidget(btn_enable)
+        btn_layout.addWidget(btn_uninstall)
+
+        layout.addLayout(path_layout)
+        layout.addLayout(content_layout)
+        layout.addLayout(btn_layout)
+        return tab
+
+    def _create_browser_tab(self) -> QWidget:
+        tab = QWidget()
+        layout = QVBoxLayout(tab)
+
+        info = QLabel(
+            f"<b>Platform:</b> <code>{self.manager.current_platform}</code> | "
+            f"<b>App Version:</b> <code>v{CURRENT_VERSION}</code>", tab
+        )
+
+        repo_layout = QHBoxLayout()
+        self.repo_input = QLineEdit(tab)
+        self.repo_input.setPlaceholderText("Enter custom plugins.json URL...")
+        btn_add = QPushButton("Add Repo", tab)
+        btn_add.clicked.connect(self._on_add_repo)
+
+        repo_layout.addWidget(self.repo_input)
+        repo_layout.addWidget(btn_add)
+
+        self.browser_list = QListWidget(tab)
+        self.browser_list.currentItemChanged.connect(self._on_browser_item_changed)
+
+        btn_layout = QHBoxLayout()
+        self.btn_fetch = QPushButton("Fetch Remote Lists", tab)
+        self.btn_install = QPushButton("Install Plugin", tab)
+        self.btn_install.setEnabled(False)
+
+        self.btn_fetch.clicked.connect(self.fetch_remote_plugins)
+        self.btn_install.clicked.connect(self.install_selected_plugin)
+
+        btn_layout.addWidget(self.btn_fetch)
+        btn_layout.addStretch()
+        btn_layout.addWidget(self.btn_install)
+
+        layout.addWidget(info)
+        layout.addLayout(repo_layout)
+        layout.addWidget(self.browser_list)
+        layout.addLayout(btn_layout)
+        return tab
+
+    def toggle_enable_disable(self) -> None:
+        selected = self.installed_list.currentItem()
+        if not selected:
+            return
+        raw_info = selected.data(Qt.ItemDataRole.UserRole)
+        if isinstance(raw_info, dict):
+            info = cast(dict[str, Any], raw_info)
+            plugin_path = info.get("path")
+            if isinstance(plugin_path, str) and plugin_path:
+                self.manager.toggle_plugin_state(Path(plugin_path))
+            elif isinstance(plugin_path, Path):
+                self.manager.toggle_plugin_state(plugin_path)
+
+    def uninstall_plugin(self) -> None:
+        selected = self.installed_list.currentItem()
+        if not selected:
+            return
+
+        raw_info = selected.data(Qt.ItemDataRole.UserRole)
+        if not isinstance(raw_info, dict):
+            return
+
+        info = cast(dict[str, Any], raw_info)
+        plugin_path = info.get("path")
+        plugin_name = info.get("name", "this plugin")
+
+        if not plugin_path:
+            return
+
+        reply = QMessageBox.question(
+            self,
+            "Confirm Uninstall",
+            f"Are you sure you want to delete '{plugin_name}'?",
+            QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No,
+        )
+        if reply == QMessageBox.StandardButton.Yes:
+            if isinstance(plugin_path, str):
+                self.manager.uninstall_plugin(Path(plugin_path))
+            elif isinstance(plugin_path, Path):
+                self.manager.uninstall_plugin(plugin_path)
+
+
+    def _clear_details_panel(self) -> None:
+        """Clears details display when nothing is selected."""
+        self.lbl_plugin_title.setText("Select a plugin")
+        self.lbl_plugin_meta.setText("")
+        self.lbl_plugin_status.setText("")
+        self.txt_plugin_desc.clear()
+        self.lbl_plugin_path.setText("")

src/window/terminal.py

@@ -17,8 +17,10 @@ from PySide6.QtWidgets import QWidget, QVBoxLayout, QTextEdit, QLineEdit, QMainW
 from PySide6.QtCore import QProcess, Qt, QThread, Signal
 
 from file_ext_registration import register_file_association, is_windows_admin
+from plugin_manager import PluginManager
 from src.shared.shareddata import API_URL, API_URL_SECONDARY, APP_NAME, CURRENT_VERSION, PLATFORM_NAME
 from src.window.about import AboutWindow
+from src.window.plugins import PluginsWindow
 from updater import UpdateManager
 
 
@@ -31,18 +33,18 @@ class _AssocWorker(QThread):
     window. Used for the non-elevated path too for consistency.
     """
     result_ready = Signal(bool, str)
- 
+
     def __init__(self, force_admin: bool, parent: QWidget | None = None) -> None:
         super().__init__(parent)
         self._force_admin = force_admin
- 
+
     def run(self) -> None:
         ok, msg = register_file_association(force_admin=self._force_admin)
         self.result_ready.emit(ok, msg)
 
 
 class TerminalWindow(QWidget):
-    def __init__(self, parent: QWidget | None = None) -> None:
+    def __init__(self, parent: QWidget | None, plugin_manager: PluginManager) -> None:
         super().__init__(parent, Qt.WindowType.Window)
         self.setWindowTitle(f"Terminal - {APP_NAME.upper()}")
         self.resize(320, 180)
@@ -58,6 +60,7 @@ class TerminalWindow(QWidget):
         self.setLayout(layout)
 
         self._process: QProcess | None = None
+        self.plugin_manager = plugin_manager
 
         self.commands: dict[str, Callable[..., Any]] = {
             "hello": self.cmd_hello,
@@ -66,6 +69,7 @@ class TerminalWindow(QWidget):
             "about": self.cmd_about,
             "assoc": self.cmd_assoc,
             "update": self.cmd_update,
+            "plugins": self.cmd_plugins,
             "utest": self.cmd_utest,
         }
 
@@ -88,7 +92,7 @@ class TerminalWindow(QWidget):
             self._pending_assoc_confirmation = False
             self._handle_assoc_confirmation(command_text.strip().lower())
             return
-        
+
         parts = command_text.strip().split()
         if not parts:
             return
@@ -114,19 +118,23 @@ class TerminalWindow(QWidget):
     def cmd_help(self, *args: Any) -> str:
         available_cmds = [cmd for cmd in self.commands.keys() if cmd != "utest"]
         return f"Available commands: {', '.join(available_cmds)}"
-    
+
     def cmd_version(self, *args: Any) -> str:
         return f"{APP_NAME.upper()} is running version {CURRENT_VERSION}."
-    
+
     def cmd_about(self, *args: Any) -> None:
         self.about = AboutWindow(self)
         self.about.show()
 
+    def cmd_plugins(self, *args: Any) -> None:
+        self.about = PluginsWindow(self, self.plugin_manager)
+        self.about.show()
+
     def cmd_update(self, *args: Any) -> str:
         main_win = self.parent()
         if not isinstance(main_win, QMainWindow):
             return "[Error] Main window context not found."
-        
+
         self.updater = UpdateManager(
             main_window=main_win,
             api_url=API_URL,
@@ -137,7 +145,7 @@ class TerminalWindow(QWidget):
             app_name=APP_NAME
         )
         self.output_area.append("Checking for updates...")
-        
+
         self.updater.manual_check_for_updates()
         return "See status bar for update information."
 
@@ -147,10 +155,10 @@ class TerminalWindow(QWidget):
         if PLATFORM_NAME != "windows" or is_windows_admin():
             self._run_assoc(force_admin=False)
             return None
- 
+
         self._pending_assoc_confirmation = True
         return "Not running as admin. Register system-wide via UAC elevation? (y/n)"
- 
+
     def _handle_assoc_confirmation(self, answer: str) -> None:
         if answer in ("y", "yes"):
             self._run_assoc(force_admin=True)
@@ -158,15 +166,15 @@ class TerminalWindow(QWidget):
             self._run_assoc(force_admin=False)
         else:
             self.output_area.append("Please answer 'y' or 'n'. Run 'assoc' again to retry.")
- 
+
     def _run_assoc(self, force_admin: bool) -> None:
         if force_admin:
             self.output_area.append("Requesting elevation. Check for a UAC prompt...")
- 
+
         self._assoc_worker = _AssocWorker(force_admin=force_admin, parent=self)
         self._assoc_worker.result_ready.connect(self._on_assoc_result)
         self._assoc_worker.start()
- 
+
     def _on_assoc_result(self, ok: bool, msg: str) -> None:
         self.output_area.append(msg)
         self._assoc_worker = None
@@ -182,7 +190,7 @@ class TerminalWindow(QWidget):
             return f"[Error] Target script not found at: {target_script}"
 
         self._process = QProcess(self)
-        
+
         # Stream stdout and stderr live to output_area
         self._process.readyReadStandardOutput.connect(self._handle_stdout)
         self._process.readyReadStandardError.connect(self._handle_stderr)
@@ -190,7 +198,7 @@ class TerminalWindow(QWidget):
 
         # Use current Python interpreter executable. Works when packaged?
         python_executable = sys.executable
-        
+
         self.output_area.append(f"Starting {target_script.name}...")
         self._process.start(python_executable, [str(target_script)])
         return None

src/window/updateevents.py

@@ -1,6 +1,7 @@
 """
 Filename: updateevents.py
-Description: Methods to update snirf events for FLARES
+Description: Methods to update snirf events
+Note: Compliant with pylance strict type checking
 
 Author: Tyler de Zeeuw
 License: GPL-3.0
@@ -9,27 +10,184 @@ License: GPL-3.0
 # Built-in imports
 import os
 import json
+import concurrent.futures
 from enum import Enum, auto
-from typing import Any, List, Optional, cast
+from typing import Any, List, Optional, Sequence, Union, cast
 
 # External library imports
 from PySide6.QtWidgets import QWidget, QVBoxLayout, QLabel, QLineEdit, QPushButton, QComboBox, QHBoxLayout, QMessageBox, QFileDialog
 from PySide6.QtCore import Qt
 
 from mne import Annotations
-from mne.io import read_raw_snirf #type: ignore
-from mne_nirs.io import write_raw_snirf #type: ignore
+from mne.io import read_raw_snirf  #type: ignore
+from mne_nirs.io import write_raw_snirf  #type: ignore
 
+from mne.io.base import BaseRaw
 from src.shared.shareddata import APP_NAME
 
 
+def _load_annotations_worker(file_path: str) -> Annotations:
+    """Isolated worker process to load SNIRF annotations without leaving HDF5 memory leaks in main process."""
+    raw: BaseRaw = read_raw_snirf(file_path, preload=False, verbose=False)
+    return cast(Annotations, getattr(raw, "annotations"))
+
+
+def load_snirf_annotations_isolated(file_path: str) -> Annotations:
+    """Spawns a short-lived process to extract annotations and cleanly releases C-memory allocations."""
+    with concurrent.futures.ProcessPoolExecutor(max_workers=1) as executor:
+        future = executor.submit(_load_annotations_worker, file_path)
+        return future.result()
+
+
+def _write_snirf_worker(
+    file_path: str,
+    save_path: str,
+    onsets: list[float],
+    durations: list[float],
+    descriptions: list[str]
+) -> None:
+    """Isolated process worker to read, annotate, write, and immediately free memory/file handles."""
+    raw = read_raw_snirf(file_path, preload=True, verbose=False)
+    new_annotations = Annotations(onset=onsets, duration=durations, description=descriptions)
+    raw.set_annotations(new_annotations)  #type: ignore
+    write_raw_snirf(raw, save_path)
+
+
+def write_snirf_with_annotations_isolated(
+    file_path: str,
+    save_path: str,
+    onsets: list[float],
+    durations: list[float],
+    descriptions: list[str]
+) -> None:
+    """Executes SNIRF writing in a dedicated worker process to ensure 100% memory/handle cleanup."""
+    with concurrent.futures.ProcessPoolExecutor(max_workers=1) as executor:
+        future = executor.submit(
+            _write_snirf_worker,
+            file_path,
+            save_path,
+            onsets,
+            durations,
+            descriptions
+        )
+        future.result()
+
+
+def _align_boris_and_write_snirf_worker(
+    file_path: str,
+    save_path: str,
+    boris_events: list[Any],
+    time_shift: float
+) -> int:
+    """
+    Isolated process worker to read SNIRF, align BORIS events, write updated file,
+    and cleanly exit releasing all HDF5 C-memory allocations and file locks.
+    """
+    raw = read_raw_snirf(file_path, preload=True, verbose=False)
+
+    # Type-safe extraction of sampling frequency from raw.info
+    info_dict = cast(dict[str, Any], raw.info)
+    sfreq = float(info_dict.get("sfreq", 10.0))
+    min_shift = 1.0 / sfreq if sfreq > 0 else 0.1
+    max_attempts = 10
+
+    onsets: list[float] = []
+    durations: list[float] = []
+    descriptions: list[str] = []
+
+    open_events: dict[str, list[float]] = {}
+    label_counts: dict[str, int] = {}
+    used_times: set[float] = set()
+
+    for raw_event in boris_events:
+        if not isinstance(raw_event, (list, tuple)):
+            continue
+
+        event = cast(Sequence[Any], raw_event)
+
+        if len(event) < 3:
+            continue
+
+        event_time = float(event[0])
+        label = str(event[2])
+
+        count = label_counts.get(label, 0) + 1
+        label_counts[label] = count
+
+        if label not in open_events:
+            open_events[label] = []
+
+        if count % 2 == 1:
+            open_events[label].append(event_time)
+        else:
+            if open_events[label]:
+                start_time = open_events[label].pop(0)
+                duration = event_time - start_time
+                if duration <= 0:
+                    continue
+
+                adjusted_time = start_time + time_shift
+                attempts = 0
+                while round(adjusted_time, 6) in used_times and attempts < max_attempts:
+                    adjusted_time += min_shift
+                    attempts += 1
+                if attempts == max_attempts:
+                    continue
+
+                adjusted_time = round(adjusted_time, 6)
+                used_times.add(adjusted_time)
+                onsets.append(adjusted_time)
+                durations.append(round(duration, 6))
+                descriptions.append(label)
+
+    # Handle unmatched start markers
+    for label, starts in open_events.items():
+        for start_time in starts:
+            adjusted_time = start_time + time_shift
+            attempts = 0
+            while round(adjusted_time, 6) in used_times and attempts < max_attempts:
+                adjusted_time += min_shift
+                attempts += 1
+            if attempts == max_attempts:
+                continue
+            adjusted_time = round(adjusted_time, 6)
+            used_times.add(adjusted_time)
+            onsets.append(adjusted_time)
+            durations.append(0.0)
+            descriptions.append(label)
+
+    new_annotations = Annotations(onset=onsets, duration=durations, description=descriptions)
+    raw.set_annotations(new_annotations)  #type: ignore
+    write_raw_snirf(raw, save_path)
+
+    return len(onsets)
+
+
+def align_boris_and_write_snirf_isolated(
+    file_path: str,
+    save_path: str,
+    boris_events: list[Any],
+    time_shift: float
+) -> int:
+    """Executes BORIS alignment and SNIRF writing in a dedicated worker process."""
+    with concurrent.futures.ProcessPoolExecutor(max_workers=1) as executor:
+        future = executor.submit(
+            _align_boris_and_write_snirf_worker,
+            file_path,
+            save_path,
+            boris_events,
+            time_shift
+        )
+        return future.result()
+
+
 class EventUpdateMode(Enum):
     WRITE_SNIRF = auto()   # destructive
     WRITE_JSON = auto()    # non-destructive
 
 
 class UpdateEventsWindow(QWidget):
-    def __init__(self, parent: Optional[QWidget]=None, mode=EventUpdateMode.WRITE_SNIRF, caller=None):
+    def __init__(self, parent: Optional[QWidget]=None, mode: EventUpdateMode=EventUpdateMode.WRITE_SNIRF, caller: Optional[Union[str, object]] = None,):
         super().__init__(parent, Qt.WindowType.Window)
 
         self.mode = mode
@@ -59,7 +217,7 @@ class UpdateEventsWindow(QWidget):
         self.label_events = QLabel("Events in selected observation:")
         self.combo_events = QComboBox()
         self.combo_events.setEnabled(False)
-        
+
         self.label_snirf_events = QLabel("Events in SNIRF file:")
         self.combo_snirf_events = QComboBox()
         self.combo_snirf_events.setEnabled(False)
@@ -69,13 +227,13 @@ class UpdateEventsWindow(QWidget):
         self.btn_clear.clicked.connect(self.clear_files)
         self.btn_go.clicked.connect(self.go_action)
 
-        # --- 
+        # ---
         layout = QVBoxLayout()
         self.description = QLabel()
         self.description.setTextFormat(Qt.TextFormat.RichText)
         self.description.setTextInteractionFlags(Qt.TextInteractionFlag.TextBrowserInteraction)
         self.description.setOpenExternalLinks(True)
-            
+
         self.description.setText("The events that are present in a snirf file may not be the events that are to be studied and examined.<br>"
         "Utilizing different software and video recordings, it is easy enough to see when an action actually occured in a file.<br>"
         "The software <a href='https://www.boris.unito.it/'>BORIS</a> is used to add these events to video files, and these events can be applied to the snirf file <br>"
@@ -159,7 +317,7 @@ class UpdateEventsWindow(QWidget):
         help_btn_suffix.setToolTip(help_text_suffix)
         help_btn_suffix.clicked.connect(lambda: self.show_help_popup(help_text_suffix))
         suffix2_layout.addWidget(help_btn_suffix)
-        
+
         suffix2_container = QWidget()
         suffix2_container_layout = QHBoxLayout()
         suffix2_container_layout.setContentsMargins(0, 0, 0, 0)
@@ -170,7 +328,7 @@ class UpdateEventsWindow(QWidget):
 
         suffix2_layout.addWidget(suffix2_container)
         layout.addLayout(suffix2_layout)
-        
+
         snirf_events_layout = QHBoxLayout()
 
         help_text_snirf_events = "The event markers extracted from the SNIRF file."
@@ -210,12 +368,13 @@ class UpdateEventsWindow(QWidget):
         if file_path:
             self.line_edit_file_a.setText(file_path)
             try:
-                # TODO: Bad! read_raw_snirf doesnt release memory properly! Should be spawned in a seperate process and killed once completed
-                raw = read_raw_snirf(file_path, preload=False)
-                annotations = raw.annotations
+                # Memory leak safe: Extracted in a separate process that terminates immediately
+                annotations: Annotations = load_snirf_annotations_isolated(file_path)
+
+                print(f"Loaded {len(annotations)} annotations from {file_path}")
 
                 # Build individual event entries
-                event_entries = []
+                event_entries: list[str] = []
                 for onset, description in zip(annotations.onset, annotations.description):
                     event_str = f"{description} @ {onset:.3f}s"
                     event_entries.append(event_str)
@@ -239,7 +398,7 @@ class UpdateEventsWindow(QWidget):
         file_path, _ = QFileDialog.getOpenFileName(self, "Select BORIS File", "", "BORIS project Files (*.boris)")
         if file_path:
             self.line_edit_file_b.setText(file_path)
-            
+
             try:
                 with open(file_path, 'r', encoding='utf-8') as f:
                     data = json.load(f)
@@ -251,7 +410,8 @@ class UpdateEventsWindow(QWidget):
 
             except (json.JSONDecodeError, FileNotFoundError, KeyError) as e:
                 QMessageBox.warning(self, "Error", f"Failed to parse BORIS file:\n{e}")
-                
+
+
     def extract_boris_observation_keys(self, data: dict[str, Any]) -> List[str]:
         if "observations" not in data:
             raise KeyError("Missing 'observations' key in BORIS file.")
@@ -259,7 +419,7 @@ class UpdateEventsWindow(QWidget):
         observations = cast(dict[str, Any], data["observations"])
         return list(observations.keys())
 
-    
+
     def on_observation_selected(self):
         selected_obs = self.combo_suffix.currentText()
         if not selected_obs or not hasattr(self, 'boris_data'):
@@ -274,11 +434,16 @@ class UpdateEventsWindow(QWidget):
             self.combo_events.setEnabled(False)
             return
 
-        event_entries = []
-        for event in events:
-            if isinstance(event, list) and len(event) >= 3:
-                timestamp = event[0]
-                label = event[2]
+        event_entries: list[str] = []
+        for raw_event in events:
+            if not isinstance(raw_event, (list, tuple)):
+                continue
+
+            event = cast(Sequence[Any], raw_event)
+
+            if len(event) >= 3:
+                timestamp = float(event[0])
+                label = str(event[2])
                 display = f"{label} @ {timestamp:.3f}"
                 event_entries.append(display)
 
@@ -289,12 +454,12 @@ class UpdateEventsWindow(QWidget):
     def clear_files(self) -> None:
         self.line_edit_file_a.clear()
         self.line_edit_file_b.clear()
-    
+
     def go_action(self) -> None:
-        
+
         file_a = self.line_edit_file_a.text()
-        suffix = "flare" 
-    
+        suffix = "flare"
+
         if not hasattr(self, "boris_data") or self.combo_events.count() == 0 or self.combo_snirf_events.count() == 0:
             QMessageBox.warning(self, "Missing data", "Please make sure a BORIS and SNIRF event are selected.")
             return
@@ -363,71 +528,15 @@ class UpdateEventsWindow(QWidget):
                 save_path += ".snirf"
 
             try:
-                raw = read_raw_snirf(file_a, preload=True)
+                # Memory leak safe: Worker handles alignment calculation, read, write, and process termination
+                event_count = align_boris_and_write_snirf_isolated(
+                    file_a,
+                    save_path,
+                    boris_events,
+                    time_shift
+                )
 
-                # --- Align BORIS events to SNIRF ---
-                boris_events = boris_obs.get("events", [])
-                onsets, durations, descriptions = [], [], []
-                open_events = {}  # label -> list of start times
-                label_counts = {}
-                used_times = set()
-                sfreq = raw.info['sfreq']
-                min_shift = 1.0 / sfreq
-                max_attempts = 10
-
-                for event in boris_events:
-                    if not isinstance(event, list) or len(event) < 3:
-                        continue
-                    event_time = event[0]
-                    label = event[2]
-                    count = label_counts.get(label, 0) + 1
-                    label_counts[label] = count
-
-                    if label not in open_events:
-                        open_events[label] = []
-
-                    if count % 2 == 1:
-                        open_events[label].append(event_time)
-                    else:
-                        if open_events[label]:
-                            start_time = open_events[label].pop(0)
-                            duration = event_time - start_time
-                            if duration <= 0:
-                                continue
-
-                            adjusted_time = start_time + time_shift
-                            attempts = 0
-                            while round(adjusted_time, 6) in used_times and attempts < max_attempts:
-                                adjusted_time += min_shift
-                                attempts += 1
-                            if attempts == max_attempts:
-                                continue
-
-                            adjusted_time = round(adjusted_time, 6)
-                            used_times.add(adjusted_time)
-                            onsets.append(adjusted_time)
-                            durations.append(duration)
-                            descriptions.append(label)
-                # Handle unmatched starts
-                for label, starts in open_events.items():
-                    for start_time in starts:
-                        adjusted_time = start_time + time_shift
-                        attempts = 0
-                        while round(adjusted_time, 6) in used_times and attempts < max_attempts:
-                            adjusted_time += min_shift
-                            attempts += 1
-                        if attempts == max_attempts:
-                            continue
-                        adjusted_time = round(adjusted_time, 6)
-                        used_times.add(adjusted_time)
-                        onsets.append(adjusted_time)
-                        durations.append(0.0)
-                        descriptions.append(label)
-
-                new_annotations = Annotations(onset=onsets, duration=durations, description=descriptions)
-                raw.set_annotations(new_annotations)
-                write_raw_snirf(raw, save_path)
-                QMessageBox.information(self, "Success", "SNIRF file updated with aligned BORIS events.")
+                QMessageBox.information(self, "Success", f"SNIRF file updated with {event_count} aligned BORIS events.")
 
             except Exception as e:
                 QMessageBox.critical(self, "Error", f"Failed to update SNIRF file:\n{e}")
@@ -466,79 +575,9 @@ class UpdateEventsWindow(QWidget):
                 QMessageBox.critical(self, "Error", f"Failed to write JSON:\n{e}")
 
 
-    # def update_optode_positions(self, file_a, file_b, save_path):
-                
-    #     fiducials = {}
-    #     ch_positions = {}
-
-    #     # Read the lines from the optode file
-    #     with open(file_b, 'r') as f:
-    #         for line in f:
-    #             if line.strip():
-    #                 # Split by the semicolon and convert to meters
-    #                 ch_name, coords_str = line.split(":")
-    #                 coords = np.array(list(map(float, coords_str.strip().split()))) * 0.001
-
-    #                 # The key we have is a fiducial
-    #                 if ch_name.lower() in ['lpa', 'nz', 'rpa']:
-    #                     fiducials[ch_name.lower()] = coords
-
-    #                 # The key we have is a source or detector
-    #                 else:
-    #                     ch_positions[ch_name.upper()] = coords
-
-    #     # Create montage with updated coords in head space
-    #     initial_montage = make_dig_montage(ch_pos=ch_positions, nasion=fiducials.get('nz'), lpa=fiducials.get('lpa'), rpa=fiducials.get('rpa'), coord_frame='head') # type: ignore
-
-    #     # Read the SNIRF file, set the montage, and write it back
-    #     # TODO: Bad! read_raw_snirf doesnt release memory properly! Should be spawned in a seperate process and killed once completed
-    #     raw = read_raw_snirf(file_a, preload=True)
-    #     raw.set_montage(initial_montage)
-    #     write_raw_snirf(raw, save_path)
-
-
-    # def _apply_events_to_snirf(self, raw, new_annotations, save_path):
-    #     raw.set_annotations(new_annotations)
-    #     write_raw_snirf(raw, save_path)
-        
-    # def _write_event_mapping_json(
-    #     self,
-    #     file_a,
-    #     file_b,
-    #     selected_obs,
-    #     snirf_anchor,
-    #     boris_anchor,
-    #     time_shift,
-    #     mapped_events,
-    #     save_path
-    # ):
-
-    #     payload = {
-    #         "source": {
-    #             "called_from": self.caller,
-    #             "snirf_file": os.path.basename(file_a),
-    #             "boris_file": os.path.basename(file_b),
-    #             "observation": selected_obs
-    #         },
-    #         "alignment": {
-    #             "snirf_anchor": snirf_anchor,
-    #             "boris_anchor": boris_anchor,
-    #             "time_shift_seconds": time_shift
-    #         },
-    #         "events": mapped_events,
-    #         "created_at": datetime.utcnow().isoformat() + "Z"
-    #     }
-
-    #     with open(save_path, "w", encoding="utf-8") as f:
-    #         json.dump(payload, f, indent=2)
-
-    #     return save_path
-
-
-
 class UpdateEventsBlazesWindow(QWidget):
 
-    def __init__(self, parent: Optional[QWidget]=None, mode=EventUpdateMode.WRITE_SNIRF, caller=None):
+    def __init__(self, parent: Optional[QWidget]=None, mode: EventUpdateMode=EventUpdateMode.WRITE_SNIRF, caller: Optional[Union[str, object]] = None,):
         super().__init__(parent, Qt.WindowType.Window)
 
         self.mode = mode
@@ -561,7 +600,7 @@ class UpdateEventsBlazesWindow(QWidget):
         self.label_events = QLabel("Events in selected blazes file:")
         self.combo_events = QComboBox()
         self.combo_events.setEnabled(False)
-        
+
         self.label_snirf_events = QLabel("Events in SNIRF file:")
         self.combo_snirf_events = QComboBox()
         self.combo_snirf_events.setEnabled(False)
@@ -571,13 +610,13 @@ class UpdateEventsBlazesWindow(QWidget):
         self.btn_clear.clicked.connect(self.clear_files)
         self.btn_go.clicked.connect(self.go_action)
 
-        # --- 
+        # ---
         layout = QVBoxLayout()
         self.description = QLabel()
         self.description.setTextFormat(Qt.TextFormat.RichText)
         self.description.setTextInteractionFlags(Qt.TextInteractionFlag.TextBrowserInteraction)
         self.description.setOpenExternalLinks(True)
-            
+
         self.description.setText("The events that are present in a snirf file may not be the events that are to be studied and examined.<br>"
         "Utilizing different software and video recordings, it is easy enough to see when an action actually occured in a file.<br>"
         "The software <a href='https://git.research.dezeeuw.ca/tyler/blazes/'>BLAZES</a> is used to create these events in video files, and these events can be applied to the snirf file <br>"
@@ -640,7 +679,7 @@ class UpdateEventsBlazesWindow(QWidget):
         help_btn_suffix.setToolTip(help_text_suffix)
         help_btn_suffix.clicked.connect(lambda: self.show_help_popup(help_text_suffix))
         suffix2_layout.addWidget(help_btn_suffix)
-        
+
         suffix2_container = QWidget()
         suffix2_container_layout = QHBoxLayout()
         suffix2_container_layout.setContentsMargins(0, 0, 0, 0)
@@ -651,7 +690,7 @@ class UpdateEventsBlazesWindow(QWidget):
 
         suffix2_layout.addWidget(suffix2_container)
         layout.addLayout(suffix2_layout)
-        
+
         snirf_events_layout = QHBoxLayout()
 
         help_text_snirf_events = "The event markers extracted from the SNIRF file."
@@ -692,12 +731,13 @@ class UpdateEventsBlazesWindow(QWidget):
         if file_path:
             self.line_edit_file_a.setText(file_path)
             try:
-                # TODO: Bad! read_raw_snirf doesnt release memory properly! Should be spawned in a seperate process and killed once completed
-                raw = read_raw_snirf(file_path, preload=False)
-                annotations = raw.annotations
+                # Memory leak safe: Extracted in a separate process that terminates immediately
+                annotations: Annotations = load_snirf_annotations_isolated(file_path)
+
+                print(f"Loaded {len(annotations)} annotations from {file_path}")
 
                 # Build individual event entries
-                event_entries = []
+                event_entries: list[str] = []
                 for onset, description in zip(annotations.onset, annotations.description):
                     event_str = f"{description} @ {onset:.3f}s"
                     event_entries.append(event_str)
@@ -721,7 +761,7 @@ class UpdateEventsBlazesWindow(QWidget):
         file_path, _ = QFileDialog.getOpenFileName(self, "Select JSON Timeline File", "", "JSON Files (*.json)")
         if file_path:
             self.line_edit_file_b.setText(file_path)
-            
+
             try:
                 with open(file_path, 'r', encoding='utf-8') as f:
                     data = json.load(f)
@@ -740,7 +780,7 @@ class UpdateEventsBlazesWindow(QWidget):
                 QMessageBox.warning(self, "Error", f"Failed to parse JSON file:\n{e}")
                 self.combo_events.clear()
                 self.combo_events.setEnabled(False)
-                
+
 
     def extract_json_observation_strings(self, data: dict[str, Any]) -> List[str]:
         if "events" not in data:
@@ -748,28 +788,27 @@ class UpdateEventsBlazesWindow(QWidget):
 
         event_strings: List[str] = []
 
-        # The new format is a flat list chronologically ordered
+        # Flat list chronologically ordered
         for event in data["events"]:
             track_name = event.get("track_name", "Unknown")
             onset = event.get("start_sec", 0.0)
-            
-            # Formatting to match your SNIRF style: "Event Name @ 0.000s"
+
             display_str = f"{track_name} @ {onset:.3f}s"
             event_strings.append(display_str)
 
         return event_strings
-    
+
 
     def clear_files(self) -> None:
         self.line_edit_file_a.clear()
         self.line_edit_file_b.clear()
-    
-    
+
+
     def go_action(self) -> None:
         file_a = self.line_edit_file_a.text()
         _ = self.line_edit_file_b.text()
         suffix = APP_NAME
-    
+
         if not hasattr(self, "json_data") or self.combo_events.count() == 0 or self.combo_snirf_events.count() == 0:
             QMessageBox.warning(self, "Missing data", "Please make sure a JSON and SNIRF event are selected.")
             return
@@ -792,21 +831,23 @@ class UpdateEventsBlazesWindow(QWidget):
 
         time_shift = snirf_anchor_time - json_anchor_time
 
-        onsets, durations, descriptions = [], [], []
+        onsets: list[float] = []
+        durations: list[float] = []
+        descriptions: list[str] = []
         skipped_count = 0
-        
+
         try:
             events_list = self.json_data.get("events", [])
-            
+
             for event in events_list:
                 track_name = event.get("track_name", "Unknown")
                 clean_name = track_name.replace("AI: ", "").strip()
-                
+
                 original_start = event.get("start_sec", 0.0)
                 original_end = event.get("end_sec", original_start)
                 duration = original_end - original_start
 
-                # FILTER: Minimum 0.1s duration
+                # Minimum 0.1s duration
                 if duration < 0.1:
                     skipped_count += 1
                     continue
@@ -829,24 +870,14 @@ class UpdateEventsBlazesWindow(QWidget):
         if self.mode == EventUpdateMode.WRITE_SNIRF:
             suggested_name = f"{os.path.splitext(os.path.basename(file_a))[0]}_{suffix}.snirf"
             save_path, _ = QFileDialog.getSaveFileName(self, "Save SNIRF", suggested_name, "SNIRF Files (*.snirf)")
-            
+
             if not save_path: return
             if not save_path.lower().endswith(".snirf"): save_path += ".snirf"
 
             try:
-                raw = read_raw_snirf(file_a, preload=True)
-                
-                # Create annotations
-                new_annotations = Annotations(
-                    onset=onsets, 
-                    duration=durations, 
-                    description=descriptions
-                )
-                
-                # Replace existing annotations with the new aligned JSON tracks
-                raw.set_annotations(new_annotations)
-                
-                write_raw_snirf(raw, save_path)
+                # Memory leak safe: Worker handles read, write, and complete memory reclamation upon exit
+                write_snirf_with_annotations_isolated(file_a, save_path, onsets, durations, descriptions)
+
                 QMessageBox.information(self, "Success", 
                     f"Aligned {len(onsets)} events.\n(Filtered out {skipped_count} short events)")
             except Exception as e:

src/window/updateoptodes.py

@@ -1,6 +1,6 @@
 """
 Filename: updateoptodes.py
-Description: Methods to update optode locations for FLARES
+Description: Methods to update optode locations
 Note: Compliant with pylance strict type checking
 
 Author: Tyler de Zeeuw
@@ -8,7 +8,6 @@ License: GPL-3.0
 """
 
 # Built-in imports
-import os
 from pathlib import Path
 from typing import Dict, Optional, Union
 
@@ -62,7 +61,7 @@ class UpdateOptodesWindow(QWidget):
         self.description.setTextFormat(Qt.TextFormat.RichText)
         self.description.setTextInteractionFlags(Qt.TextInteractionFlag.TextBrowserInteraction)
         self.description.setOpenExternalLinks(False) # Handle the click internally
-            
+
         self.description.setText("Some software when creating snirf files will insert a template of optode positions as the correct position of the optodes for the participant.<br>"
         "This is rarely correct as each head differs slightly in shape or size, and a lot of calculations require the optodes to be in the correct location.<br>"
         "Using a .txt or .xlsx file, we can update the positions in the snirf file to match those of a digitization system such as one from Polhemus or elsewhere.<br>"
@@ -271,12 +270,12 @@ class UpdateOptodesWindow(QWidget):
             )
 
     def update_optode_positions(
-        self, 
-        file_a: Union[str, Path], 
-        file_b: Union[str, Path], 
+        self,
+        file_a: Union[str, Path],
+        file_b: Union[str, Path],
         save_path: Union[str, Path]
     ) -> None:
-                
+
         fiducials = {}
         ch_positions = {}
 
@@ -305,33 +304,33 @@ class UpdateOptodesWindow(QWidget):
             df = pd.read_excel(file_b, sheet_name='Sheet1') # type: ignore
 
             def _get_block_data(
-                target_df: pd.DataFrame, 
-                block_id: int, 
-                row_mapping: Union[Dict[int, str], str], 
+                target_df: pd.DataFrame,
+                block_id: int,
+                row_mapping: Union[Dict[int, str], str],
                 scale: float = 0.001
             ) -> Dict[str, npt.NDArray[np.float64]]:
-                
+
                 """Isolates a block, cleans numeric data, and returns a scaled dictionary."""
                 # 1. Isolate and clean
                 block = target_df[target_df['block_id'] == block_id].iloc[:, [1, 2, 3]].copy()
                 block = block.apply(pd.to_numeric, errors='coerce')
-                
+
                 # 2. Extract into dictionary based on mapping
                 result: Dict[str, npt.NDArray[np.float64]] = {}
-                
+
                 # If row_mapping is a dict (like {0: 'nz'}), use it directly
                 if isinstance(row_mapping, dict):
                     for row_idx, key in row_mapping.items():
                         if row_idx < len(block):
                             result[key] = block.iloc[row_idx].to_numpy(dtype=float) * scale
-                
+
                 # If row_mapping is a string prefix (like 'D' or 'S'), auto-generate keys
                 else:
                     for i in range(len(block)):
                         result[f"{row_mapping}{i+1}"] = block.iloc[i].to_numpy(dtype=float) * scale
-                        
+
                 return result
-                    
+
             # Identify blocks
             is_empty = df.isnull().all(axis=1)
             df['block_id'] = is_empty.cumsum()

src/window/viewerlauncher.py

@@ -48,12 +48,12 @@ class ViewerLauncherWidget(QWidget):
         qc_dict: dict[str, dict[str, Any]],
         folding_bypass: bool,
     ) -> None:
-        
+
         super().__init__()
         self.setWindowTitle(f"Viewer Launcher - {APP_NAME.upper()}")
 
         group_dict = {f: c.get("GROUP", "Unknown") for f, c in config_dict.items()}
-        
+
         btn_data: list[tuple[str, Type[QWidget], list[Any], bool]] = [
             ("Participant Image Viewer", ParticipantImageViewerWidget, [haemo_dict, fig_bytes_dict], True),
             ("Participant Brain Viewer", ParticipantBrainViewerWidget, [haemo_dict, cha_dict], True),
@@ -64,7 +64,7 @@ class ViewerLauncherWidget(QWidget):
             ("Inter-Group Stats Viewer", InterGroupStatsWidget, [haemo_dict, cha_dict, df_ind_dict, design_matrix_dict, contrast_results_dict, roi_channel_map_dict, group_dict], True),
             ("Intra-Group Brain and Image Viewer", IntraGroupBrainImageWidget, [haemo_dict, cha_dict, df_ind_dict, design_matrix_dict, contrast_results_dict, group_dict], True),
             ("Inter-Group Brain and Image Viewer", InterGroupBrainImageWidget, [haemo_dict, df_ind_dict, design_matrix_dict, contrast_results_dict, group_dict], True),
-            ("Export To CSV Viewer", ExportToCSVWidget, [haemo_dict, cha_dict, df_ind_dict, design_matrix_dict, contrast_results_dict, group_dict, config_dict, fir_feature_dict, qc_dict], True)
+            ("Export To CSV Viewer", ExportToCSVWidget, [haemo_dict, epochs_dict, cha_dict, df_ind_dict, design_matrix_dict, contrast_results_dict, group_dict, config_dict, fir_feature_dict, qc_dict], True)
         ]
 
         layout = QVBoxLayout(self)
@@ -84,23 +84,23 @@ class ViewerLauncherWidget(QWidget):
         def callback(_checked: bool = False) -> None:
             self._open_viewer(widget_class, btn, *args)
         return callback
-    
+
     def _open_viewer(
-        self, 
-        widget_class: Type[QWidget], 
-        btn: QPushButton, 
+        self,
+        widget_class: Type[QWidget],
+        btn: QPushButton,
         *args: Any
     ) -> None:
-        
+
         # Instantiate and show dynamically
         self.active_viewer = widget_class(*args)
         self.active_viewer.show()
         self._trigger_success(btn)
 
     def _launch(
-        self, 
-        func: Callable[..., Any], 
-        btn: QPushButton, 
+        self,
+        func: Callable[..., Any],
+        btn: QPushButton,
         *args: Any
 
     ) -> None:
@@ -112,7 +112,7 @@ class ViewerLauncherWidget(QWidget):
         original_text = button.text()
         button.setText(f"{original_text}  ✔")
         button.setStyleSheet("color: green; font-weight: bold;")
-        
+
         # Revert after 1 second
         QTimer.singleShot(1000, lambda: self._revert_button(button, original_text))
 

src/window/welcome.py

@@ -22,9 +22,9 @@ class WelcomeDialog(QDialog):
         self.setWindowTitle(f"What's New - {APP_NAME.upper()}")
         self.setMinimumSize(550, 450)
         self.resize(800, 500)
-        
+
         layout = QVBoxLayout(self)
-        
+
         header_layout = QHBoxLayout()
         logo_label = QLabel(self)
 
@@ -41,7 +41,7 @@ class WelcomeDialog(QDialog):
         header_layout.addWidget(title_label)
         header_layout.addStretch()
         layout.addLayout(header_layout)
-        
+
         self.text_browser = QTextBrowser(self)
         self.text_browser.setHtml("<p style='color: gray;'>Loading latest updates from server...</p>")
 
@@ -49,17 +49,17 @@ class WelcomeDialog(QDialog):
         self.text_browser.setOpenLinks(False)
         self.text_browser.anchorClicked.connect(QDesktopServices.openUrl)
         layout.addWidget(self.text_browser)
-        
+
         footer_layout = QHBoxLayout()
-        
+
         ok_button = QPushButton("OK", self)
         ok_button.setDefault(True)
         ok_button.clicked.connect(self.accept)
-        
+
         footer_layout.addStretch()
         footer_layout.addWidget(ok_button)
         layout.addLayout(footer_layout)
-        
+
         # Fetch markdown from the web asynchronously
         self.network_manager = QNetworkAccessManager(self)
         self.network_manager.finished.connect(self._on_download_complete)

startup_args.py

@@ -30,7 +30,7 @@ def parse_startup_args(argv: list[str]) -> StartupArgs:
                          a fixed position, so it survives regardless of
                          whether --finish-update precedes it.
     """
-    
+
     finish_update = "--finish-update" in argv[1:]
 
     initial_file = None

updater.py

@@ -18,7 +18,8 @@ import zipfile
 import traceback
 import subprocess
 import configparser
-from typing import List
+from typing import List, Tuple, Optional, Callable, Any
+
 
 # External library imports
 import psutil
@@ -26,7 +27,7 @@ import requests
 
 from PySide6.QtCore import QThread, Signal, QObject
 from PySide6.QtWidgets import QMainWindow, QMessageBox
-
+from src.shared.shareddata import get_app_dir
 
 class UpdateDownloadThread(QThread):
     """
@@ -36,7 +37,7 @@ class UpdateDownloadThread(QThread):
         download_url (str): URL of the update zip file to download.
         latest_version (str): Version string of the latest update.
     """
-        
+
     update_ready = Signal(str, str)
     error_occurred = Signal(str)
 
@@ -47,14 +48,14 @@ class UpdateDownloadThread(QThread):
         platform_name: str,
         app_name: str,
     ) -> None:
-        
+
         super().__init__()
         self.download_url = download_url
         self.latest_version = latest_version
         self.platform_name = platform_name
         self.app_name = app_name
 
-    def run(self):
+    def run(self) -> None:
         try:
             local_filename = os.path.basename(self.download_url)
 
@@ -63,8 +64,8 @@ class UpdateDownloadThread(QThread):
                 os.makedirs(tmp_dir, exist_ok=True)
                 local_path = os.path.join(tmp_dir, local_filename)
             else:
-                tmp_dir = os.getcwd()
-                local_path = os.path.join(os.getcwd(), local_filename)
+                tmp_dir = get_app_dir()
+                local_path = os.path.join(tmp_dir, local_filename)
 
             # Download the file
             with requests.get(self.download_url, stream=True, timeout=15) as r:
@@ -78,10 +79,9 @@ class UpdateDownloadThread(QThread):
             if self.platform_name == 'darwin':
                 extract_folder = os.path.splitext(local_filename)[0]
                 extract_path = os.path.join(tmp_dir, extract_folder)
-
             else:
                 extract_folder = os.path.splitext(local_filename)[0]
-                extract_path = os.path.join(os.getcwd(), extract_folder)
+                extract_path = os.path.join(get_app_dir(), extract_folder)
 
             # Create the folder if not exists
             os.makedirs(extract_path, exist_ok=True)
@@ -124,7 +124,7 @@ class UpdateCheckThread(QThread):
         platform_name: str,
         app_name: str,
     ) -> None:
-        
+
         super().__init__()
         self.api_url = api_url
         self.api_url_sec = api_url_sec
@@ -132,10 +132,7 @@ class UpdateCheckThread(QThread):
         self.platform_name = platform_name
         self.app_name = app_name
 
-    def run(self):
-        # if not getattr(sys, 'frozen', False):
-        #     self.error_occurred.emit("Application is not frozen (Development mode).")
-        #     return
+    def run(self) -> None:
         try:
             latest_version, download_url = self.get_latest_release_for_platform()
             if not latest_version:
@@ -159,11 +156,10 @@ class UpdateCheckThread(QThread):
             return [int(x) for x in v.split(".")]
         return (normalize(v1) > normalize(v2)) - (normalize(v1) < normalize(v2))
 
-    def get_latest_release_for_platform(self):
+    def get_latest_release_for_platform(self) -> Tuple[Optional[str], Optional[str]]:
         urls = [self.api_url, self.api_url_sec]
         for url in urls:
             try:
-                    
                 response = requests.get(url, timeout=5)
                 response.raise_for_status()
                 releases = response.json()
@@ -175,7 +171,7 @@ class UpdateCheckThread(QThread):
 
                 if not latest:
                     continue
-                
+
                 tag = latest["tag_name"].lstrip("v")
 
                 for asset in latest.get("assets", []):
@@ -207,7 +203,7 @@ class LocalPendingUpdateCheckThread(QThread):
         platform_name: str,
         app_name: str,
     ) -> None:
-        
+
         super().__init__()
         self.current_version = current_version
         self.platform_suffix = platform_suffix
@@ -219,11 +215,11 @@ class LocalPendingUpdateCheckThread(QThread):
             return [int(x) for x in v.split(".")]
         return (normalize(v1) > normalize(v2)) - (normalize(v1) < normalize(v2))
 
-    def run(self):
+    def run(self) -> None:
         if self.platform_name == 'darwin':
             cwd = f'/tmp/{self.app_name}tempupdate'
         else:
-            cwd = os.getcwd()
+            cwd = get_app_dir()
 
         pattern = re.compile(r".*-(\d+\.\d+\.\d+)" + re.escape(self.platform_suffix) + r"$")
         found = False
@@ -239,9 +235,9 @@ class LocalPendingUpdateCheckThread(QThread):
                             self.pending_update_found.emit(folder_version, folder_path)
                             found = True
                             break
-        except:
+        except Exception:
             pass
-        
+
         if not found:
             self.no_pending_update.emit()
 
@@ -251,7 +247,7 @@ class UpdateManager(QObject):
     Orchestrates the update process. 
     Main apps should instantiate this and call check_for_updates().
     """
-    
+
     def __init__(
         self,
         main_window: QMainWindow,
@@ -262,7 +258,7 @@ class UpdateManager(QObject):
         platform_suffix: str,
         app_name: str,
     ) -> None:
-        
+
         super().__init__(main_window)
         self.main_window: QMainWindow = main_window
         self.api_url = api_url
@@ -271,10 +267,9 @@ class UpdateManager(QObject):
         self.platform_name = platform_name
         self.platform_suffix = platform_suffix
         self.app_name = app_name
-        
-        self.pending_update_version = None
-        self.pending_update_path = None
 
+        self.pending_update_version: Optional[str] = None
+        self.pending_update_path: Optional[str] = None
 
     def manual_check_for_updates(self) -> None:
         self.local_check_thread = LocalPendingUpdateCheckThread(self.current_version, self.platform_suffix, self.platform_name, self.app_name)
@@ -283,14 +278,15 @@ class UpdateManager(QObject):
         self.local_check_thread.start()
 
     def on_pending_update_found(self, version: str, folder_path: str) -> None:
-        self.main_window.statusBar().showMessage(f"Pending update found: version {version}")
+        if self.main_window.statusBar():
+            self.main_window.statusBar().showMessage(f"Pending update found: version {version}")
         self.pending_update_version = version
         self.pending_update_path = folder_path
         self.show_pending_update_popup()
 
     def on_no_pending_update(self) -> None:
-        # No pending update found locally, start server check directly
-        self.main_window.statusBar().showMessage("No pending local update found. Checking server...")
+        if self.main_window.statusBar():
+            self.main_window.statusBar().showMessage("No pending local update found. Checking server...")
         self.start_update_check_thread()
 
     def show_pending_update_popup(self) -> None:
@@ -306,7 +302,6 @@ class UpdateManager(QObject):
         else:
             if self.main_window.statusBar():
                 self.main_window.statusBar().showMessage("Pending update available. Install later.")
-            # After user dismisses, still check the server for new updates
             self.start_update_check_thread()
 
     def start_update_check_thread(self) -> None:
@@ -327,14 +322,16 @@ class UpdateManager(QObject):
         if pending_version and pending_path:
             cmp = self.version_compare(latest_version, pending_version)
             if cmp > 0:
-                # Server version is newer than pending update
-                self.main_window.statusBar().showMessage(f"Newer version {latest_version} available on server. Removing old pending update...")
+                if self.main_window.statusBar():
+                    self.main_window.statusBar().showMessage(f"Newer version {latest_version} available on server. Removing old pending update...")
                 try:
                     shutil.rmtree(pending_path)
-                    self.main_window.statusBar().showMessage(f"Deleted old update folder: {pending_path}")
+                    if self.main_window.statusBar():
+                        self.main_window.statusBar().showMessage(f"Deleted old update folder: {pending_path}")
                 except Exception as e:
-                    self.main_window.statusBar().showMessage(f"Failed to delete old update folder: {e}")
-                    
+                    if self.main_window.statusBar():
+                        self.main_window.statusBar().showMessage(f"Failed to delete old update folder: {e}")
+
                 # Clear pending update info so new download proceeds
                 self.pending_update_version = None
                 self.pending_update_path = None
@@ -342,8 +339,8 @@ class UpdateManager(QObject):
                 # Download the new update
                 self.download_update(download_url, latest_version)
             elif cmp == 0:
-                # Versions equal, no download needed
-                self.main_window.statusBar().showMessage(f"Pending update version {self.pending_update_version} is already latest. No download needed.")
+                if self.main_window.statusBar():
+                    self.main_window.statusBar().showMessage(f"Pending update version {self.pending_update_version} is already latest. No download needed.")
             else:
                 # Server version older than pending? Unlikely but just keep pending update
                 self.main_window.statusBar().showMessage(f"Pending update version {self.pending_update_version} is newer than server version. No action.")
@@ -374,24 +371,26 @@ class UpdateManager(QObject):
         if msg_box.clickedButton() == install_now_button:
             self.install_update(extract_folder)
         else:
-            self.main_window.statusBar().showMessage("Update ready. Install later.")
-
+            if self.main_window.statusBar():
+                self.main_window.statusBar().showMessage("Update ready. Install later.")
 
     def install_update(self, extract_folder: str) -> None:
-        # Path to updater executable
+        base_dir = get_app_dir()
 
+        # Path to updater executable
         if self.platform_name == 'windows':
-            updater_path = os.path.join(os.getcwd(), f"{self.app_name}_updater.exe")
+            updater_path = os.path.join(base_dir, f"{self.app_name}_updater.exe")
         elif self.platform_name == 'darwin':
             if getattr(sys, 'frozen', False):
-                updater_path = os.path.join(os.path.dirname(sys.executable), f"../../../{self.app_name}_updater.app")
+                updater_path = os.path.join(base_dir, f"../../../{self.app_name}_updater.app")
             else:
-                updater_path = os.path.join(os.getcwd(), f"../{self.app_name}_updater.app")
-
+                updater_path = os.path.join(base_dir, f"../{self.app_name}_updater.app")
         elif self.platform_name == 'linux':
-            updater_path = os.path.join(os.getcwd(), f"{self.app_name}_updater")
+            updater_path = os.path.join(base_dir, f"{self.app_name}_updater")
         else:
-            updater_path = os.getcwd()
+            updater_path = base_dir
+
+        updater_path = os.path.abspath(updater_path)
 
         if not os.path.exists(updater_path):
             QMessageBox.critical(self.main_window, "Error", f"Updater not found at:\n{updater_path}. The absolute path was {os.path.abspath(updater_path)}")
@@ -399,8 +398,7 @@ class UpdateManager(QObject):
 
         # Launch updater with extracted folder path as argument
         try:
-            # Pass current app's executable path for updater to relaunch
-            main_app_executable = os.path.abspath(sys.argv[0])
+            main_app_executable = sys.executable if getattr(sys, 'frozen', False) else os.path.abspath(sys.argv[0])
 
             print(f'Launching updater with: "{updater_path}" "{extract_folder}" "{main_app_executable}"')
 
@@ -457,121 +455,131 @@ def wait_for_process_to_exit(process_name: str, timeout: int = 10) -> bool:
     return False
 
 
+def _remove_readonly(func: Callable[[str], Any], path: str, exc: Any) -> None:
+    """Error handler for shutil.rmtree to clear read-only files on Windows."""
+    import stat
+    os.chmod(path, stat.S_IWRITE)
+    func(path)
+
+
 def finish_update_if_needed(platform_name: str, app_name: str, cfg_path: str, finish_update: bool) -> None:
     """
     Completes a pending application update if '--finish-update' is present in the command-line arguments.
     """
 
-    if finish_update:
-        print("Finishing update...")
-        
-        update_cfg = configparser.ConfigParser()
-        try:
-            update_cfg.read(cfg_path)              
+    if not finish_update:
+        return
+
+    print("Finishing update...")
+
+    # 1. Reset welcome dialog config flag
+    update_cfg = configparser.ConfigParser()
+    try:
+        if os.path.exists(cfg_path):
+            update_cfg.read(cfg_path)
+            if not update_cfg.has_section("Options"):
+                update_cfg.add_section("Options")
             update_cfg.set("Options", "show_welcome_dialog", "true")
-            
+
             with open(cfg_path, "w") as f:
                 update_cfg.write(f)
             print("Welcome dialog flag successfully reset to 'true' for next run.")
-        except Exception as e:
-            print(f"Warning: Could not update welcome dialog preference flag: {e}")
+    except Exception as e:
+        print(f"Warning: Could not update welcome dialog preference flag: {e}")
 
-        if platform_name == 'darwin':
-            app_dir = f'/tmp/{app_name}tempupdate'
-        else:
-            app_dir = os.getcwd()
+    app_dir = f'/tmp/{app_name}tempupdate' if platform_name == 'darwin' else get_app_dir()
 
-        # 1. Find update folder
-        update_folder = None
+    if not os.path.exists(app_dir):
+        print(f"App directory does not exist: {app_dir}. Skipping cleanup.")
+        return
+
+    # 2. Find update folder(s)
+    update_folders: List[str] = []
+    try:
         for entry in os.listdir(app_dir):
             entry_path = os.path.join(app_dir, entry)
             if os.path.isdir(entry_path) and entry.startswith(f"{app_name}-") and entry.endswith("-" + platform_name):
-                update_folder = os.path.join(app_dir, entry)
-                break
+                update_folders.append(entry_path)
+    except Exception as e:
+        print(f"Error scanning app directory for update folders: {e}")
 
-        if update_folder is None:
-            print("No update folder found. Skipping update steps.")
-            return
-        
-        if platform_name == 'darwin':
-            update_folder = os.path.join(update_folder, f"{app_name}-darwin")
+    if not update_folders:
+        print("No update folder found. Skipping update steps.")
+        return
 
-        # 2. Wait for updater to exit
-        print(f"Waiting for {app_name}_updater to exit...")
-        for proc in psutil.process_iter(['pid', 'name']):
-            if proc.info['name'] and f"{app_name}_updater" in proc.info['name'].lower():
-                try:
-                    proc.wait(timeout=5)
-                except psutil.TimeoutExpired:
-                    print(f"Force killing lingering {app_name}_updater")
-                    proc.kill()
+    primary_update_folder = update_folders[0]
+    target_updater_folder = os.path.join(primary_update_folder, f"{app_name}-darwin") if platform_name == 'darwin' else primary_update_folder
 
-        # 3. Replace the updater
-        if platform_name == 'windows':
-            new_updater = os.path.join(update_folder, f"{app_name}_updater.exe")
-            dest_updater = os.path.join(app_dir, f"{app_name}_updater.exe")
-
-        elif platform_name == 'darwin':
-            new_updater = os.path.join(update_folder, f"{app_name}_updater.app")
-            dest_updater = os.path.abspath(os.path.join(sys.executable, f"../../../../{app_name}_updater.app"))
-
-        elif platform_name == 'linux':
-            new_updater = os.path.join(update_folder, f"{app_name}_updater")
-            dest_updater = os.path.join(app_dir, f"{app_name}_updater")
-
-        else:
-            print("Unknown Platform")
-            new_updater = os.getcwd()
-            dest_updater = os.getcwd()
-
-        print(f"New updater is {new_updater}")
-        print(f"Dest updater is {dest_updater}")
-
-        print("Writable?", os.access(dest_updater, os.W_OK))
-        print("Executable path:", sys.executable)
-        print("Trying to copy:", new_updater, "->", dest_updater)
-
-        if os.path.exists(new_updater):
-            try:
-                if os.path.exists(dest_updater):
-                    if platform_name == 'darwin':
-                        try:
-                            if os.path.isdir(dest_updater):
-                                shutil.rmtree(dest_updater)
-                                print(f"Deleted directory: {dest_updater}")
-                            else:
-                                os.remove(dest_updater)
-                                print(f"Deleted file: {dest_updater}")
-                        except Exception as e:
-                            print(f"Error deleting {dest_updater}: {e}")
-                    else:
-                        os.remove(dest_updater)
-
-                if platform_name == 'darwin':
-                    wait_for_process_to_exit(f"{app_name}_updater", timeout=10)
-                    subprocess.check_call(["ditto", new_updater, dest_updater])
-                else:
-                    shutil.copy2(new_updater, dest_updater)
-
-                if platform_name in ('linux', 'darwin'):
-                    os.chmod(dest_updater, 0o755)
-
-                if platform_name == 'darwin':
-                    remove_quarantine(dest_updater, app_name)
-
-                print(f"{app_name}_updater replaced.")
-            except Exception as e:
-                print(f"Failed to replace {app_name}_updater: {e}")
-
-        # 4. Delete the update folder
+    # 3. Wait for updater process to exit
+    print(f"Waiting for {app_name}_updater to exit...")
+    updater_bin_name = f"{app_name}_updater"
+    for proc in psutil.process_iter(['pid', 'name']):
         try:
-            if platform_name == 'darwin':
-                shutil.rmtree(app_dir)
-            else:
-                shutil.rmtree(update_folder)
-        except Exception as e:
-            print(f"Failed to delete update folder: {e}")
+            if proc.info['name'] and updater_bin_name.lower() in proc.info['name'].lower():
+                proc.wait(timeout=5)
+        except (psutil.NoSuchProcess, psutil.AccessDenied):
+            pass
+        except psutil.TimeoutExpired:
+            print(f"Force killing lingering {app_name}_updater")
+            try:
+                proc.kill()
+            except Exception:
+                pass
 
+    # 4. Replace the updater executable
+    target_base = get_app_dir()
+    if platform_name == 'windows':
+        new_updater = os.path.join(target_updater_folder, f"{app_name}_updater.exe")
+        dest_updater = os.path.join(target_base, f"{app_name}_updater.exe")
+    elif platform_name == 'darwin':
+        new_updater = os.path.join(target_updater_folder, f"{app_name}_updater.app")
+        dest_updater = os.path.abspath(os.path.join(sys.executable, f"../../../../{app_name}_updater.app"))
+    elif platform_name == 'linux':
+        new_updater = os.path.join(target_updater_folder, f"{app_name}_updater")
+        dest_updater = os.path.join(target_base, f"{app_name}_updater")
+    else:
+        new_updater = target_base
+        dest_updater = target_base
+
+    if os.path.exists(new_updater):
+        try:
+            if os.path.exists(dest_updater):
+                if platform_name == 'darwin' and os.path.isdir(dest_updater):
+                    shutil.rmtree(dest_updater, onexc=_remove_readonly)
+                else:
+                    os.remove(dest_updater)
+
+            if platform_name == 'darwin':
+                wait_for_process_to_exit(f"{app_name}_updater", timeout=10)
+                subprocess.check_call(["ditto", new_updater, dest_updater])
+            else:
+                shutil.copy2(new_updater, dest_updater)
+
+            if platform_name in ('linux', 'darwin'):
+                os.chmod(dest_updater, 0o755)
+
+            if platform_name == 'darwin':
+                remove_quarantine(dest_updater, app_name)
+
+            print(f"{app_name}_updater replaced successfully.")
+        except Exception as e:
+            print(f"Failed to replace {app_name}_updater: {e}")
+
+    # 5. Clean up all temporary update folders (with retries for Windows file locks)
+    for folder in update_folders:
+        for attempt in range(3):
+            try:
+                if os.path.exists(folder):
+                    shutil.rmtree(folder, onexc=_remove_readonly)
+                    print(f"Successfully deleted update folder: {folder}")
+                break
+            except Exception as e:
+                if attempt < 2:
+                    time.sleep(1.0)
+                else:
+                    print(f"Failed to delete update folder '{folder}' after 3 attempts: {e}")
+
+    if "--finish-update" in sys.argv:
         sys.argv.remove("--finish-update")