refactor: replace print statements with appropriate logging levels

Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>

backend/open_webui/main.py

@@ -1468,7 +1468,7 @@ async def list_tasks_by_chat_id_endpoint(
 
     task_ids = await list_task_ids_by_chat_id(request, chat_id)
 
-    print(f"Task IDs for chat {chat_id}: {task_ids}")
+    log.debug(f"Task IDs for chat {chat_id}: {task_ids}")
     return {"task_ids": task_ids}
 
 

backend/open_webui/tasks.py

@@ -3,10 +3,17 @@ import asyncio
 from typing import Dict
 from uuid import uuid4
 import json
+import logging
 from redis.asyncio import Redis
 from fastapi import Request
 from typing import Dict, List, Optional
 
+from open_webui.env import SRC_LOG_LEVELS
+
+
+log = logging.getLogger(__name__)
+log.setLevel(SRC_LOG_LEVELS["MAIN"])
+
 # A dictionary to keep track of active tasks
 tasks: Dict[str, asyncio.Task] = {}
 chat_tasks = {}
@@ -38,7 +45,7 @@ async def redis_task_command_listener(app):
                 if local_task:
                     local_task.cancel()
         except Exception as e:
-            print(f"Error handling distributed task command: {e}")
+            log.exception(f"Error handling distributed task command: {e}")
 
 
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