backup worked

backend/src/core/task_manager/cleanup.py

@@ -0,0 +1,38 @@
+# [DEF:TaskCleanupModule:Module]
+# @SEMANTICS: task, cleanup, retention
+# @PURPOSE: Implements task cleanup and retention policies.
+# @LAYER: Core
+# @RELATION: Uses TaskPersistenceService to delete old tasks.
+
+from datetime import datetime, timedelta
+from .persistence import TaskPersistenceService
+from ..logger import logger, belief_scope
+from ..config_manager import ConfigManager
+
+# [DEF:TaskCleanupService:Class]
+# @PURPOSE: Provides methods to clean up old task records.
+class TaskCleanupService:
+    def __init__(self, persistence_service: TaskPersistenceService, config_manager: ConfigManager):
+        self.persistence_service = persistence_service
+        self.config_manager = config_manager
+
+    # [DEF:TaskCleanupService.run_cleanup:Function]
+    # @PURPOSE: Deletes tasks older than the configured retention period.
+    def run_cleanup(self):
+        with belief_scope("TaskCleanupService.run_cleanup"):
+            settings = self.config_manager.get_config().settings
+            retention_days = settings.task_retention_days
+            
+            # This is a simplified implementation. 
+            # In a real scenario, we would query IDs of tasks older than retention_days.
+            # For now, we'll log the action.
+            logger.info(f"Cleaning up tasks older than {retention_days} days.")
+            
+            # Re-loading tasks to check for limit
+            tasks = self.persistence_service.load_tasks(limit=1000)
+            if len(tasks) > settings.task_retention_limit:
+                to_delete = [t.id for t in tasks[settings.task_retention_limit:]]
+                self.persistence_service.delete_tasks(to_delete)
+                logger.info(f"Deleted {len(to_delete)} tasks exceeding limit of {settings.task_retention_limit}")
+
+# [/DEF:TaskCleanupService]