Changes committed

docengine/app/events/handlers.py

@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+from app.core.logging_config import get_logger, setup_logging
+
+logger = get_logger(__name__)
+
+
+def on_startup() -> None:
+    """Application startup event handler."""
+    setup_logging()
+    logger.info("application_starting", event="startup")
+
+    # Ensure storage directories exist
+    from app.storage.provider import get_storage_provider
+    try:
+        get_storage_provider()
+        logger.info("storage_initialized")
+    except Exception as e:
+        logger.error("storage_init_failed", error=str(e))
+
+    # Verify database connection
+    from app.core.database import check_database_connection
+    if check_database_connection():
+        logger.info("database_connected")
+    else:
+        logger.error("database_connection_failed")
+
+    logger.info("application_started", event="startup_complete")
+
+
+def on_shutdown() -> None:
+    """Application shutdown event handler."""
+    logger.info("application_shutting_down", event="shutdown")
+
+    # Cleanup resources
+    from app.core.database import engine
+    engine.dispose()
+
+    logger.info("application_stopped", event="shutdown_complete")