refactor: log silent AttributeError catches, add _sync_class to remaining services, drop dead ctx slot

server.py

@@ -60,11 +60,13 @@ class ZordonServer:
         self.ctx.render_queue = RenderQueue()
         self.ctx.render_queue.load_state(database_directory=Path(Config.upload_folder).expanduser())
         RenderQueue._default_instance = self.ctx.render_queue
+        RenderQueue._sync_class()
 
         # ---- Distributed Job Manager ----
         self.ctx.distributed_job_manager = DistributedJobManager()
         self.ctx.distributed_job_manager.subscribe_to_listener()
         DistributedJobManager._default_instance = self.ctx.distributed_job_manager
+        DistributedJobManager._sync_class()
 
         self.api_server = None
         self.server_hostname = None

src/application_context.py

@@ -4,7 +4,6 @@ from typing import TYPE_CHECKING, Optional
 
 if TYPE_CHECKING:
     from src.api.preview_manager import PreviewManager
-    from src.api.serverproxy_manager import ServerProxyManager
     from src.distributed_job_manager import DistributedJobManager
     from src.engines.engine_manager import EngineManager
     from src.render_queue import RenderQueue
@@ -22,4 +21,3 @@ class ApplicationContext:
         self.zeroconf_server: Optional[ZeroconfServer] = None
         self.render_queue: Optional[RenderQueue] = None
         self.distributed_job_manager: Optional[DistributedJobManager] = None
-        self.server_proxy_manager: Optional[ServerProxyManager] = None

src/distributed_job_manager.py

@@ -24,6 +24,11 @@ logger = logging.getLogger()
 class DistributedJobManager:
     _default_instance: Optional['DistributedJobManager'] = None
 
+    @classmethod
+    def _sync_class(cls) -> None:
+        if cls._default_instance is not None:
+            pass  # no class-level attributes to sync
+
     def __init__(self) -> None:
         self.background_worker: Optional[threading.Thread] = None
 

src/render_queue.py

@@ -28,6 +28,11 @@ class JobNotFoundError(Exception):
 class RenderQueue:
     _default_instance: Optional['RenderQueue'] = None
 
+    @classmethod
+    def _sync_class(cls) -> None:
+        if cls._default_instance is not None:
+            pass  # no class-level attributes to sync
+
     def __init__(self) -> None:
         self.engine: Optional[create_engine] = None
         self.session: Optional[Session] = None

src/ui/main_window.py

@@ -247,9 +247,8 @@ class MainWindow(QMainWindow):
                 # Update server information display
                 self.update_server_info_display(new_hostname)
 
-        except AttributeError:
-            # Handle cases where the server list view might not be properly initialized
-            pass
+        except AttributeError as e:
+            logger.error(f"AttributeError in server_picked: {e}")
 
     def update_server_info_display(self, hostname):
         """Updates the server information section of the UI."""
@@ -405,7 +404,8 @@ class MainWindow(QMainWindow):
                 id_item = self.job_list_view.item(selected_row.row(), 0)
                 job_ids.append(id_item.text())
             return job_ids
-        except AttributeError:
+        except AttributeError as e:
+            logger.error(f"AttributeError in selected_job_ids: {e}")
             return []