fix: Use lazy import pattern for TelegramSelectorDialog to help PyInstaller

Author: VoxHash

app/gui/widgets/__init__.py

@@ -2,31 +2,41 @@
 Reusable GUI widgets for the application.
 """
 
-# Import telegram_selector first using absolute import to ensure PyInstaller includes it
-# Try multiple import strategies to ensure PyInstaller detects it
-try:
-    from app.gui.widgets.telegram_selector import TelegramSelectorDialog
-except ImportError:
+# Lazy import function for TelegramSelectorDialog to avoid import errors at module level
+# This allows PyInstaller to include the module even if it's not directly imported
+def _get_telegram_selector_dialog():
+    """Lazy import function for TelegramSelectorDialog."""
     try:
-        # Try relative import
-        from .telegram_selector import TelegramSelectorDialog
+        from app.gui.widgets.telegram_selector import TelegramSelectorDialog
+        return TelegramSelectorDialog
     except ImportError:
-        # Last resort: try importing the module directly
-        import importlib
-        import sys
-        import os
-        # Get the directory of this file
-        widgets_dir = os.path.dirname(os.path.abspath(__file__))
-        if widgets_dir not in sys.path:
-            sys.path.insert(0, widgets_dir)
         try:
-            telegram_selector_module = importlib.import_module('telegram_selector')
-            TelegramSelectorDialog = telegram_selector_module.TelegramSelectorDialog
+            from .telegram_selector import TelegramSelectorDialog
+            return TelegramSelectorDialog
         except ImportError:
-            # If all else fails, create a dummy class to prevent complete failure
-            class TelegramSelectorDialog:
-                def __init__(self, *args, **kwargs):
-                    raise RuntimeError("TelegramSelectorDialog module not found. Please rebuild the executable with PyInstaller using main.spec")
+            import importlib
+            import sys
+            import os
+            # Get the directory of this file
+            widgets_dir = os.path.dirname(os.path.abspath(__file__))
+            if widgets_dir not in sys.path:
+                sys.path.insert(0, widgets_dir)
+            try:
+                telegram_selector_module = importlib.import_module('telegram_selector')
+                return telegram_selector_module.TelegramSelectorDialog
+            except ImportError:
+                # If all else fails, create a dummy class
+                class TelegramSelectorDialog:
+                    def __init__(self, *args, **kwargs):
+                        raise RuntimeError("TelegramSelectorDialog module not found. Please rebuild the executable with PyInstaller using main.spec")
+                return TelegramSelectorDialog
+
+# Import it immediately to ensure PyInstaller sees it, but use the function for lazy loading
+try:
+    from app.gui.widgets.telegram_selector import TelegramSelectorDialog
+except ImportError:
+    # If import fails, use lazy loader
+    TelegramSelectorDialog = _get_telegram_selector_dialog()
 
 from .account_widget import AccountWidget, AccountListWidget
 from .campaign_widget import CampaignWidget, CampaignListWidget