Fix compatibility issues with Qt/PyQt6 versions

- Add null check for message.message in search filter
- Handle missing colorScheme/colorSchemeChanged methods for older Qt versions
- Add display check to prevent hanging in headless environments
- Update build documentation with system package alternative
- Update PyInstaller spec for Python 3.12
- Improve run.sh script with venv management

gotify_tray/__main__.py

@@ -1,11 +1,21 @@
 def main():
+    import os
     import sys
 
     if "--version" in sys.argv:
         from gotify_tray.__version__ import __version__
+
         print(__version__)
     else:
+        # Check for display before importing GUI modules
+        if not os.environ.get("DISPLAY"):
+            print(
+                "Error: No display environment detected. This application requires a graphical desktop environment to run.",
+                file=sys.stderr,
+            )
+            sys.exit(1)
         from gotify_tray.gui import start_gui
+
         start_gui()
 
 

gotify_tray/gui/MainApplication.py

@@ -459,9 +459,10 @@ class MainApplication(QtWidgets.QApplication):
         self.main_window.hidden.connect(self.main_window_hidden_callback)
         self.main_window.activated.connect(self.tray.revert_icon)
 
-        self.styleHints().colorSchemeChanged.connect(
-            self.theme_change_requested_callback
-        )
+        if hasattr(self.styleHints(), "colorSchemeChanged"):
+            self.styleHints().colorSchemeChanged.connect(
+                self.theme_change_requested_callback
+            )
 
         self.messages_model.rowsInserted.connect(
             self.main_window.display_message_widgets

gotify_tray/gui/designs/widget_main.py

@@ -1,6 +1,6 @@
 # Form implementation generated from reading ui file 'gotify_tray/gui/designs/widget_main.ui'
 #
-# Created by: PyQt6 UI code generator 6.9.1
+# Created by: PyQt6 UI code generator 6.10.0
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic6 is
 # run again.  Do not edit this file unless you know what you are doing.

gotify_tray/gui/designs/widget_message.py

@@ -1,6 +1,6 @@
 # Form implementation generated from reading ui file 'gotify_tray/gui/designs/widget_message.ui'
 #
-# Created by: PyQt6 UI code generator 6.9.1
+# Created by: PyQt6 UI code generator 6.10.0
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic6 is
 # run again.  Do not edit this file unless you know what you are doing.

gotify_tray/gui/designs/widget_server.py

@@ -1,6 +1,6 @@
 # Form implementation generated from reading ui file 'gotify_tray/gui/designs/widget_server.ui'
 #
-# Created by: PyQt6 UI code generator 6.9.1
+# Created by: PyQt6 UI code generator 6.10.0
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic6 is
 # run again.  Do not edit this file unless you know what you are doing.

gotify_tray/gui/designs/widget_settings.py

@@ -1,6 +1,6 @@
 # Form implementation generated from reading ui file 'gotify_tray/gui/designs/widget_settings.ui'
 #
-# Created by: PyQt6 UI code generator 6.9.1
+# Created by: PyQt6 UI code generator 6.10.0
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic6 is
 # run again.  Do not edit this file unless you know what you are doing.

gotify_tray/gui/models/MessagesModel.py

@@ -65,7 +65,7 @@ class MessagesProxyModel(QtCore.QSortFilterProxyModel):
             return False
         if self.text_filter:
             title = (message.title or "").lower()
-            msg = message.message.lower()
+            msg = (message.message or "").lower()
             if self.text_filter not in title and self.text_filter not in msg:
                 return False
         return True

gotify_tray/gui/themes/__init__.py

@@ -3,14 +3,21 @@ from gotify_tray.utils import get_abs_path
 
 
 themes = {
-    QtCore.Qt.ColorScheme.Dark: "dark",
-    QtCore.Qt.ColorScheme.Light: "light",
-    QtCore.Qt.ColorScheme.Unknown: "light",
+    2: "dark",  # Dark
+    1: "light",  # Light
+    0: "light",  # Unknown
 }
 
 
 def set_theme(app: QtWidgets.QApplication):
-    theme = themes.get(app.styleHints().colorScheme(), "light")
+    if hasattr(app.styleHints(), "colorScheme"):
+        color_scheme = app.styleHints().colorScheme()
+        theme = themes.get(
+            color_scheme.value if hasattr(color_scheme, "value") else color_scheme,
+            "light",
+        )
+    else:
+        theme = "light"  # Default to light theme if colorScheme not available
 
     stylesheet = ""
     with open(get_abs_path(f"gotify_tray/gui/themes/base.qss"), "r") as f:
@@ -23,5 +30,12 @@ def set_theme(app: QtWidgets.QApplication):
 
 def get_theme_file(file: str) -> str:
     app = QtCore.QCoreApplication.instance()
-    theme = themes.get(app.styleHints().colorScheme(), "light")
+    if hasattr(app.styleHints(), "colorScheme"):
+        color_scheme = app.styleHints().colorScheme()
+        theme = themes.get(
+            color_scheme.value if hasattr(color_scheme, "value") else color_scheme,
+            "light",
+        )
+    else:
+        theme = "light"  # Default to light theme if colorScheme not available
     return get_abs_path(f"gotify_tray/gui/themes/{theme}/{file}")