diff --git a/api/controller/ChatComplete.py b/api/controller/ChatComplete.py
index 5685c12..150ac1e 100644
--- a/api/controller/ChatComplete.py
+++ b/api/controller/ChatComplete.py
@@ -1,19 +1,19 @@
 from __future__ import annotations
 import asyncio
-import json
 import sys
 import time
 import traceback
+from api.model.toolkit_ui.conversation import ConversationHelper
 from local import noawait
 from typing import Optional, Callable, TypedDict
 from aiohttp import web
 from sqlalchemy import select
-from api.model.chat_complete.conversation import ConversationModel, ConversationChunkModel
+from api.model.chat_complete.conversation import ConversationChunkHelper, ConversationModel, ConversationChunkModel
 from noawait import NoAwaitPool
-from service.chat_complete import ChatCompleteService
+from service.chat_complete import ChatCompleteService, ChatCompleteServiceResponse
 from service.database import DatabaseService
 from service.embedding_search import EmbeddingSearchArgs
-from service.mediawiki_api import MediaWikiApi, MediaWikiPageNotFoundException
+from service.mediawiki_api import MediaWikiApi, MediaWikiPageNotFoundException, MediaWikiUserNoEnoughPointsException
 from service.tiktoken import TikTokenService
 import utils.web
 
@@ -23,6 +23,7 @@ class ChatCompleteTask:
     def __init__(self, dbs: DatabaseService, user_id: int, page_title: str, is_system = False):
         self.task_id = utils.web.generate_uuid()
         self.on_message: list[Callable] = []
+        self.on_finished: list[Callable] = []
         self.on_error: list[Callable] = []
         self.chunks: list[str] = []
 
@@ -37,7 +38,12 @@ class ChatCompleteTask:
         self.transatcion_id: Optional[str] = None
         self.point_cost: int = 0
 
-    async def init(self, question: str, conversation_id: Optional[str] = None,
+        self.is_finished = False
+        self.finished_time: Optional[float] = None
+        self.result: Optional[ChatCompleteServiceResponse] = None
+        self.error: Optional[Exception] = None
+
+    async def init(self, question: str, conversation_id: Optional[str] = None, edit_message_id: Optional[str] = None,
                    embedding_search: Optional[EmbeddingSearchArgs] = None):
         self.tiktoken = await TikTokenService.create()
         
@@ -54,34 +60,58 @@ class ChatCompleteTask:
             self.transatcion_id: Optional[str] = None
             self.point_cost: int = 0
             if not self.is_system:
-                usage_res = await self.mwapi.chat_complete_start_transaction(self.user_id, "chatcomplete", question_tokens, extract_limit)
-                self.transatcion_id = usage_res.get("transaction_id")
-                self.point_cost = usage_res.get("point_cost")
-
-            chat_res = await self.chat_complete.prepare_chat_complete(question, conversation_id=conversation_id,
-                            user_id=self.user_id, embedding_search=embedding_search)
+                usage_res = await self.mwapi.chat_complete_start_transaction(self.user_id, "chatcomplete",
+                                                                             question_tokens, extract_limit)
+                self.transatcion_id = usage_res["transaction_id"]
+                self.point_cost = usage_res["point_cost"]
 
-            return chat_res
+            res = await self.chat_complete.prepare_chat_complete(question, conversation_id=conversation_id,
+                            user_id=self.user_id, edit_message_id=edit_message_id, embedding_search=embedding_search)
+            
+            return res
         else:
             await self._exit()
             raise MediaWikiPageNotFoundException("Page %s not found." % self.page_title)
 
     async def _on_message(self, delta_message: str):
+        self.chunks.append(delta_message)
+            
         for callback in self.on_message:
-            await callback(delta_message)
+            try:
+                await callback(delta_message)
+            except Exception as e:
+                print("Error while processing on_message callback: %s" % e, file=sys.stderr)
+                traceback.print_exc()
+
+    async def _on_finished(self):
+        for callback in self.on_finished:
+            try:
+                await callback(self.result)
+            except Exception as e:
+                print("Error while processing on_finished callback: %s" % e, file=sys.stderr)
+                traceback.print_exc()
 
     async def _on_error(self, err: Exception):
+        self.error = err
         for callback in self.on_error:
-            await callback(err)
+            try:
+                await callback(err)
+            except Exception as e:
+                print("Error while processing on_error callback: %s" % e, file=sys.stderr)
+                traceback.print_exc()
 
     async def run(self):
         try:
-            chat_res = self.chat_complete.finish_chat_complete(self._on_message)
+            chat_res = await self.chat_complete.finish_chat_complete(self._on_message)
 
             await self.chat_complete.set_latest_point_cost(self.point_cost)
 
+            self.result = chat_res
+
             if self.transatcion_id:
-                result = await self.mwapi.chat_complete_end_transaction(self.transatcion_id, chat_res["total_tokens"])
+                await self.mwapi.chat_complete_end_transaction(self.transatcion_id, chat_res["total_tokens"])
+
+            await self._on_finished()
         except Exception as e:
             err_msg = f"Error while processing chat complete request: {e}"
 
@@ -89,7 +119,7 @@ class ChatCompleteTask:
             traceback.print_exc()
 
             if self.transatcion_id:
-                result = await self.mwapi.chat_complete_cancel_transaction(self.transatcion_id, error=err_msg)
+                await self.mwapi.chat_complete_cancel_transaction(self.transatcion_id, error=err_msg)
 
             await self._on_error(e)
         finally:
@@ -98,10 +128,19 @@ class ChatCompleteTask:
     async def _exit(self):
         await self.chat_complete_service.__aexit__(None, None, None)
         del chat_complete_tasks[self.task_id]
+        self.is_finished = True
+        self.finished_time = time.time()
 
-    @noawait.wrap
-    async def start(self):
-        await self.run()
+TASK_EXPIRE_TIME = 60 * 10
+
+async def chat_complete_task_gc():
+    now = time.time()
+    for task_id in chat_complete_tasks.keys():
+        task = chat_complete_tasks[task_id]
+        if task.is_finished and task.finished_time is not None and now > task.finished_time + TASK_EXPIRE_TIME:
+            del chat_complete_tasks[task_id]
+
+noawait.add_timer(chat_complete_task_gc, 60)
 
 class ChatComplete:
     @staticmethod
@@ -112,7 +151,7 @@ class ChatComplete:
                 "required": False,
                 "type": int
             },
-            "conversation_id": {
+            "id": {
                 "required": True,
                 "type": int
             }
@@ -123,40 +162,31 @@ class ChatComplete:
         else:
             user_id = params.get("user_id")
 
-        conversation_id = params.get("conversation_id")
+        conversation_id = params.get("id")
 
         db = await DatabaseService.create(request.app)
 
-        async with db.create_session() as session:
-            stmt = select(ConversationModel).where(
-                ConversationModel.id == conversation_id)
-
-            conversation_data = await session.scalar(stmt)
+        async with ConversationHelper(db) as conversation_helper, ConversationChunkHelper(db) as conversation_chunk_helper:
+            conversation_info = await conversation_helper.find_by_id(conversation_id)
 
-            if conversation_data is None:
+            if conversation_info is None:
                 return await utils.web.api_response(-1, error={
                     "code": "conversation-not-found",
                     "message": "Conversation not found."
                 }, http_status=404, request=request)
 
-            if conversation_data.user_id != user_id:
+            if conversation_info.user_id != user_id:
                 return await utils.web.api_response(-1, error={
                     "code": "permission-denied",
                     "message": "Permission denied."
                 }, http_status=403, request=request)
 
-            stmt = select(ConversationChunkModel).with_only_columns([ConversationChunkModel.id, ConversationChunkModel.updated_at]) \
-                .where(ConversationChunkModel.conversation_id == conversation_id).order_by(ConversationChunkModel.id.asc())
-
-            conversation_chunk_result = await session.scalars(stmt)
+            conversation_chunk_result = await conversation_chunk_helper.get_chunk_id_list(conversation_id)
 
             conversation_chunk_list = []
 
             for result in conversation_chunk_result:
-                conversation_chunk_list.append({
-                    "id": result.id,
-                    "updated_at": result.updated_at
-                })
+                conversation_chunk_list.append(result)
 
         return await utils.web.api_response(1, conversation_chunk_list, request=request)
 
@@ -181,26 +211,32 @@ class ChatComplete:
 
         chunk_id = params.get("chunk_id")
 
-        dbs = await DatabaseService.create(request.app)
-        async with dbs.create_session() as session:
-            stmt = select(ConversationChunkModel).where(
-                ConversationChunkModel.id == chunk_id)
-
-            conversation_data = await session.scalar(stmt)
-
-            if conversation_data is None:
+        db = await DatabaseService.create(request.app)
+        async with ConversationHelper(db) as conversation_helper, ConversationChunkHelper(db) as conversation_chunk_helper:
+            chunk_info = await conversation_chunk_helper.find_by_id(chunk_id)
+            if chunk_info is None:
                 return await utils.web.api_response(-1, error={
                     "code": "conversation-chunk-not-found",
                     "message": "Conversation chunk not found."
                 }, http_status=404, request=request)
 
-            if conversation_data.conversation.user_id != user_id:
+            conversation_info = await conversation_helper.find_by_id(chunk_info.conversation_id)
+            
+            if conversation_info is not None and conversation_info.user_id != user_id:
                 return await utils.web.api_response(-1, error={
                     "code": "permission-denied",
                     "message": "Permission denied."
                 }, http_status=403, request=request)
 
-        return await utils.web.api_response(1, conversation_data.__dict__, request=request)
+        chunk_dict = {
+            "id": chunk_info.id,
+            "conversation_id": chunk_info.conversation_id,
+            "message_data": chunk_info.message_data,
+            "tokens": chunk_info.tokens,
+            "updated_at": chunk_info.updated_at,
+        }
+
+        return await utils.web.api_response(1, chunk_dict, request=request)
     
     @staticmethod
     @utils.web.token_auth
@@ -219,6 +255,47 @@ class ChatComplete:
 
         return await utils.web.api_response(1, {"tokens": tokens}, request=request)
 
+    @staticmethod
+    @utils.web.token_auth
+    async def get_point_cost(request: web.Request):
+        params = await utils.web.get_param(request, {
+            "question": {
+                "type": str,
+                "required": True,
+            },
+            "extract_limit": {
+                "type": int,
+                "required": False,
+                "default": 10,
+            },
+        })
+        
+        user_id = request.get("user")
+        caller = request.get("caller")
+
+        question = params.get("question")
+        extract_limit = params.get("extract_limit")
+
+        tiktoken = await TikTokenService.create()
+        mwapi = MediaWikiApi.create()
+
+        tokens = await tiktoken.get_tokens(question)
+
+        try:
+            res = await mwapi.chat_complete_get_point_cost(user_id, "chatcomplete", tokens, extract_limit)
+            return await utils.web.api_response(1, {
+                "point_cost": res["point_cost"],
+                "tokens": tokens,
+            }, request=request)
+        except Exception as e:
+            err_msg = f"Error while get chat complete point cost: {e}"
+            traceback.print_exc()
+            
+            return await utils.web.api_response(-1, error={
+                "code": "chat-complete-error",
+                "message": err_msg
+            }, http_status=500, request=request)
+
     @staticmethod
     @utils.web.token_auth
     async def start_chat_complete(request: web.Request):
@@ -245,6 +322,10 @@ class ChatComplete:
                 "required": False,
                 "default": False,
             },
+            "edit_message_id": {
+                "type": str,
+                "required": False,
+            },
         })
 
         user_id = request.get("user")
@@ -257,20 +338,25 @@ class ChatComplete:
         extract_limit = params.get("extract_limit")
         in_collection = params.get("in_collection")
 
+        edit_message_id = params.get("edit_message_id")
+
         dbs = await DatabaseService.create(request.app)
 
         try:
             chat_complete_task = ChatCompleteTask(dbs, user_id, page_title, caller != "user")
-            init_res = await chat_complete_task.init(question, conversation_id=conversation_id, embedding_search={
+            init_res = await chat_complete_task.init(question, conversation_id=conversation_id, edit_message_id=edit_message_id,
+                embedding_search={
                     "limit": extract_limit,
                     "in_collection": in_collection,
                 })
             
             chat_complete_tasks[chat_complete_task.task_id] = chat_complete_task
 
-            chat_complete_task.start()
+            noawait.add_task(chat_complete_task.run())
             
-            return utils.web.api_response(1, data={
+            return await utils.web.api_response(1, data={
+                "conversation_id": init_res["conversation_id"],
+                "chunk_id": init_res["chunk_id"],
                 "question_tokens": init_res["question_tokens"],
                 "extract_doc": init_res["extract_doc"],
                 "task_id": chat_complete_task.task_id,
@@ -282,6 +368,12 @@ class ChatComplete:
                 "title": page_title,
                 "message": error_msg
             }, http_status=404, request=request)
+        except MediaWikiUserNoEnoughPointsException as e:
+            error_msg = "Does not have enough points." % user_id
+            return await utils.web.api_response(-1, error={
+                "code": "no-enough-points",
+                "message": error_msg
+            }, http_status=403, request=request)
         except Exception as e:
             err_msg = f"Error while processing chat complete request: {e}"
             traceback.print_exc()
@@ -294,4 +386,123 @@ class ChatComplete:
     @staticmethod
     @utils.web.token_auth
     async def chat_complete_stream(request: web.Request):
-        pass
\ No newline at end of file
+        if not utils.web.is_websocket(request):
+            return await utils.web.api_response(-1, error={
+                "code": "websocket-required",
+                "message": "This API only accept websocket connection."
+            }, http_status=400, request=request)
+        
+        params = await utils.web.get_param(request, {
+            "task_id": {
+                "type": str,
+                "required": True,
+            }
+        })
+
+        ws = web.WebSocketResponse()
+        await ws.prepare(request)
+
+        task_id = params.get("task_id")
+
+        task = chat_complete_tasks.get(task_id)
+        if task is None:
+            await ws.send_json({
+                'event': 'error',
+                'status': -1,
+                'message': "Task not found.",
+                'error': {
+                    'code': "task-not-found",
+                    'info': "Task not found.",
+                },
+            })
+            return
+
+        if request.get("caller") == "user":
+            user_id = request.get("user")
+            if task.user_id != user_id:
+                await ws.send_json({
+                    'event': 'error',
+                    'status': -1,
+                    'message': "Permission denied.",
+                    'error': {
+                        'code': "permission-denied",
+                        'info': "Permission denied.",
+                    },
+                })
+                return
+        
+        if task.is_finished:
+            if task.error is not None:
+                await ws.send_json({
+                    'event': 'error',
+                    'status': -1,
+                    'message': str(task.error),
+                    'error': {
+                        'code': "internal-error",
+                        'info': str(task.error),
+                    },
+                })
+                await ws.close()
+            elif task.result is not None:
+                await ws.send_json({
+                    'event': 'connected',
+                    'status': 1,
+                    'outputed_message': "".join(task.chunks),
+                })
+                await ws.send_json({
+                    'event': 'finished',
+                    'status': 1,
+                    'result': task.result
+                })
+                await ws.close()
+        else:
+            async def on_message(delta_message: str):
+                await ws.send_str("+" + delta_message)
+
+            async def on_finished(result: ChatCompleteServiceResponse):
+                ignored_keys = ["message"]
+                response_result = {
+                    "point_cost": task.point_cost,
+                }
+                for k, v in result.items():
+                    if k not in ignored_keys:
+                        response_result[k] = v
+                await ws.send_json({
+                    'event': 'finished',
+                    'status': 1,
+                    'result': response_result
+                })
+
+                await ws.close()
+
+            async def on_error(err: Exception):
+                await ws.send_json({
+                    'event': 'error',
+                    'status': -1,
+                    'message': str(err),
+                    'error': {
+                        'code': "internal-error",
+                        'info': str(err),
+                    },
+                })
+
+                await ws.close()
+
+            task.on_message.append(on_message)
+            task.on_finished.append(on_finished)
+            task.on_error.append(on_error)
+
+            # Send received message            
+            await ws.send_json({
+                'event': 'connected',
+                'status': 1,
+                'outputed_message': "".join(task.chunks),
+            })
+
+            while True:
+                if ws.closed:
+                    task.on_message.remove(on_message)
+                    task.on_finished.remove(on_finished)
+                    task.on_error.remove(on_error)
+                    break
+                await asyncio.sleep(0.1)
diff --git a/api/controller/EmbeddingSearch.py b/api/controller/EmbeddingSearch.py
index 5873555..ff75a15 100644
--- a/api/controller/EmbeddingSearch.py
+++ b/api/controller/EmbeddingSearch.py
@@ -2,7 +2,7 @@ import sys
 import traceback
 from aiohttp import web
 from service.database import DatabaseService
-from service.embedding_search import EmbeddingSearchService
+from service.embedding_search import EmbeddingRunningException, EmbeddingSearchService
 from service.mediawiki_api import MediaWikiApi, MediaWikiApiException, MediaWikiPageNotFoundException
 import utils.web
 
@@ -87,6 +87,18 @@ class EmbeddingSearch:
                 })
                 if transatcion_id:
                     await mwapi.chat_complete_cancel_transaction(transatcion_id, error_msg)
+            except EmbeddingRunningException:
+                error_msg = "Page index is running now"
+                await ws.send_json({
+                    'event': 'error',
+                    'status': -4,
+                    'message': error_msg,
+                    'error': {
+                        'code': 'page_index_running',
+                    },
+                })
+                if transatcion_id:
+                    await mwapi.chat_complete_cancel_transaction(transatcion_id, error_msg)
             except Exception as e:
                 error_msg = str(e)
                 print(error_msg, file=sys.stderr)
@@ -94,7 +106,10 @@ class EmbeddingSearch:
                 await ws.send_json({
                     'event': 'error',
                     'status': -1,
-                    'message': error_msg
+                    'message': error_msg,
+                    'error': {
+                        'code': 'internal_server_error',
+                    }
                 })
                 if transatcion_id:
                     await mwapi.chat_complete_cancel_transaction(transatcion_id, error_msg)
@@ -145,6 +160,16 @@ class EmbeddingSearch:
                     "info": e.info,
                     "message": error_msg
                 }, http_status=500)
+            except EmbeddingRunningException:
+                error_msg = "Page index is running now"
+
+                if transatcion_id:
+                    await mwapi.chat_complete_cancel_transaction(transatcion_id, error_msg)
+
+                return await utils.web.api_response(-4, error={
+                    "code": "page-index-running",
+                    "message": error_msg
+                }, http_status=429)
             except Exception as e:
                 error_msg = str(e)
 
diff --git a/api/controller/Index.py b/api/controller/Index.py
index 32f13b7..54f8ced 100644
--- a/api/controller/Index.py
+++ b/api/controller/Index.py
@@ -2,7 +2,6 @@ import sys
 import time
 import traceback
 from aiohttp import web
-from sqlalchemy import select
 from api.model.toolkit_ui.conversation import ConversationHelper
 from api.model.toolkit_ui.page_title import PageTitleHelper
 from service.database import DatabaseService
@@ -27,7 +26,7 @@ class Index:
         db = await DatabaseService.create(request.app)
         async with PageTitleHelper(db) as page_title_helper:
             title_info = await page_title_helper.find_by_title(title)
-
+            
             if title_info is not None and time.time() - title_info.updated_at < 60:
                 return await utils.web.api_response(1, {
                     "cached": True,
@@ -123,6 +122,7 @@ class Index:
                     "id": result.id,
                     "module": result.module,
                     "title": result.title,
+                    "description": result.description,
                     "thumbnail": result.thumbnail,
                     "rev_id": result.rev_id,
                     "updated_at": result.updated_at,
@@ -166,6 +166,7 @@ class Index:
                 "id": conversation_info.id,
                 "module": conversation_info.module,
                 "title": conversation_info.title,
+                "description": conversation_info.description,
                 "thumbnail": conversation_info.thumbnail,
                 "rev_id": conversation_info.rev_id,
                 "updated_at": conversation_info.updated_at,
@@ -178,14 +179,68 @@ class Index:
     @staticmethod
     @utils.web.token_auth
     async def remove_conversation(request: web.Request):
+        params = await utils.web.get_param(request, {
+            "id": {
+                "type": int
+            },
+            "ids": {
+                "type": str
+            }
+        })
+
+        conversation_id = params.get("id")
+        conversation_ids = params.get("ids")
+
+        if conversation_id is None and conversation_ids is None:
+            return await utils.web.api_response(-2, error={
+                "code": "invalid-params",
+                "message": "Invalid params."
+            }, request=request, http_status=400)
+        
+        if conversation_id is not None:
+            conversation_ids = [conversation_id]
+        else:
+            conversation_ids = conversation_ids.split(",")
+            conversation_ids = [int(id) for id in conversation_ids]
+
+        db = await DatabaseService.create(request.app)
+        async with ConversationHelper(db) as conversation_helper:
+            user_id = None
+            if request.get("caller") == "user":
+                user_id = int(request.get("user"))
+                conversation_ids = await conversation_helper.filter_user_owned_ids(conversation_ids, user_id=user_id)
+
+            if len(conversation_ids) > 0:
+                await conversation_helper.remove_multiple(conversation_ids)
+
+                # 通知其他模块删除
+                events = EventService.create()
+                events.emit("conversation/removed", {
+                    "ids": conversation_ids,
+                    "dbs": db,
+                    "app": request.app,
+                })
+
+        return await utils.web.api_response(1, data={
+            "count": len(conversation_ids)
+        }, request=request)
+
+    @staticmethod
+    @utils.web.token_auth
+    async def set_conversation_pinned(request: web.Request):
         params = await utils.web.get_param(request, {
             "id": {
                 "required": True,
                 "type": int
+            },
+            "pinned": {
+                "required": True,
+                "type": bool
             }
         })
 
         conversation_id = params.get("id")
+        pinned = params.get("pinned")
 
         db = await DatabaseService.create(request.app)
         async with ConversationHelper(db) as conversation_helper:
@@ -203,39 +258,27 @@ class Index:
                     "message": "Permission denied."
                 }, request=request, http_status=403)
 
-            await conversation_helper.remove(conversation_info)
-
-            # 通知其他模块删除
-            events = EventService.create()
-            events.emit("conversation/removed", {
-                "conversation": conversation_info,
-                "dbs": db,
-                "app": request.app,
-            })
-            events.emit("conversation/removed/" + conversation_info.module, {
-                "conversation": conversation_info,
-                "dbs": db,
-                "app": request.app,
-            })
+            conversation_info.pinned = pinned
+            await conversation_helper.update(conversation_info)
 
         return await utils.web.api_response(1, request=request)
-
+    
     @staticmethod
     @utils.web.token_auth
-    async def set_conversation_pinned(request: web.Request):
+    async def set_conversation_title(request: web.Request):
         params = await utils.web.get_param(request, {
             "id": {
                 "required": True,
                 "type": int
             },
-            "pinned": {
+            "new_title": {
                 "required": True,
-                "type": bool
+                "type": str
             }
         })
 
         conversation_id = params.get("id")
-        pinned = params.get("pinned")
+        new_title = params.get("new_title")
 
         db = await DatabaseService.create(request.app)
         async with ConversationHelper(db) as conversation_helper:
@@ -253,7 +296,7 @@ class Index:
                     "message": "Permission denied."
                 }, request=request, http_status=403)
 
-            conversation_info.pinned = pinned
+            conversation_info.title = new_title
             await conversation_helper.update(conversation_info)
 
         return await utils.web.api_response(1, request=request)
diff --git a/api/model/chat_complete/conversation.py b/api/model/chat_complete/conversation.py
index 2bad188..f13c02f 100644
--- a/api/model/chat_complete/conversation.py
+++ b/api/model/chat_complete/conversation.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
+import time
 
 import sqlalchemy
-from sqlalchemy import update
+from sqlalchemy import select, update
 from sqlalchemy.orm import mapped_column, relationship, Mapped
 
 from api.model.base import BaseModel
@@ -13,10 +14,11 @@ class ConversationChunkModel(BaseModel):
     __tablename__ = "chat_complete_conversation_chunk"
 
     id: Mapped[int] = mapped_column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
-    conversation_id: Mapped[int] = mapped_column(sqlalchemy.ForeignKey(ConversationModel.id), index=True)
+    conversation_id: Mapped[int] = mapped_column(
+        sqlalchemy.ForeignKey(ConversationModel.id, ondelete="CASCADE", onupdate="CASCADE"), index=True)
     message_data: Mapped[list] = mapped_column(sqlalchemy.JSON, nullable=True)
     tokens: Mapped[int] = mapped_column(sqlalchemy.Integer, default=0)
-    updated_at: Mapped[int] = mapped_column(sqlalchemy.TIMESTAMP, index=True)
+    updated_at: Mapped[int] = mapped_column(sqlalchemy.BigInteger, index=True)
 
 class ConversationChunkHelper:
     def __init__(self, dbs: DatabaseService):
@@ -36,52 +38,58 @@ class ConversationChunkHelper:
         await self.session.__aexit__(exc_type, exc, tb)
         pass
 
-    async def add(self, conversation_id: int, message_data: list, tokens: int):
-        async with self.create_session() as session:
-            chunk = ConversationChunkModel(
-                conversation_id=conversation_id,
-                message_data=message_data,
-                tokens=tokens,
-                updated_at=sqlalchemy.func.current_timestamp()
-            )
-            session.add(chunk)
-            await session.commit()
-            await session.refresh(chunk)
-            return chunk
+    async def add(self, obj: ConversationChunkModel):
+        obj.updated_at = int(time.time())
+        self.session.add(obj)
+        await self.session.commit()
+        await self.session.refresh(obj)
+        return obj
         
-    async def update(self, chunk: ConversationChunkModel):
-        chunk.updated_at = sqlalchemy.func.current_timestamp()
-        chunk = await self.session.merge(chunk)
+    async def update(self, obj: ConversationChunkModel):
+        obj.updated_at = int(time.time())
+        obj = await self.session.merge(obj)
         await self.session.commit()
-        return chunk
+        return obj
 
     async def update_message_log(self, chunk_id: int, message_data: list, tokens: int):
         stmt = update(ConversationChunkModel).where(ConversationChunkModel.id == chunk_id) \
-            .values(message_data=message_data, tokens=tokens, updated_at=sqlalchemy.func.current_timestamp())
+            .values(message_data=message_data, tokens=tokens, updated_at=int(time.time()))
         await self.session.execute(stmt)
         await self.session.commit()
 
     async def get_newest_chunk(self, conversation_id: int):
-        stmt = sqlalchemy.select(ConversationChunkModel) \
+        stmt = select(ConversationChunkModel) \
                 .where(ConversationChunkModel.conversation_id == conversation_id) \
                 .order_by(ConversationChunkModel.id.desc()) \
                 .limit(1)
         return await self.session.scalar(stmt)
+
+    async def get_chunk_id_list(self, conversation_id: int):
+        stmt = select(ConversationChunkModel.id) \
+                .where(ConversationChunkModel.conversation_id == conversation_id).order_by(ConversationChunkModel.id.asc())
+        return await self.session.scalars(stmt)
+    
+    async def find_by_id(self, id: int):
+        stmt = select(ConversationChunkModel).where(ConversationChunkModel.id == id)
+        return await self.session.scalar(stmt)
     
-    async def remove(self, id: int):
-        stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.id == id)
+    async def remove(self, id: int | list[int]):
+        if isinstance(id, list):
+            stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.id.in_(id))
+        else:
+            stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.id == id)
         await self.session.execute(stmt)
         await self.session.commit()
 
-    async def remove_by_conversation_id(self, conversation_id: int):
-        stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.conversation_id == conversation_id)
+    async def remove_by_conversation_ids(self, ids: list[int]):
+        stmt = sqlalchemy.delete(ConversationChunkModel).where(ConversationChunkModel.conversation_id.in_(ids))
         await self.session.execute(stmt)
         await self.session.commit()
     
 async def on_conversation_removed(event):
-    if "conversation" in event:
-        conversation_info = event["conversation"]
-        conversation_id = conversation_info["id"]
-        await ConversationChunkHelper(event["dbs"]).remove_by_conversation_id(conversation_id)
+    if "ids" in event:
+        conversation_ids = event["ids"]
+        async with ConversationChunkHelper(event["dbs"]) as chunk_helper:
+            await chunk_helper.remove_by_conversation_ids(conversation_ids)
 
-EventService.create().add_listener("conversation/removed/chatcomplete", on_conversation_removed)
\ No newline at end of file
+EventService.create().add_listener("conversation/removed", on_conversation_removed)
\ No newline at end of file
diff --git a/api/model/toolkit_ui/conversation.py b/api/model/toolkit_ui/conversation.py
index 4dfdc54..9c262a2 100644
--- a/api/model/toolkit_ui/conversation.py
+++ b/api/model/toolkit_ui/conversation.py
@@ -1,4 +1,5 @@
 from __future__ import annotations
+import time
 
 from typing import List, Optional
 import sqlalchemy
@@ -17,11 +18,11 @@ class ConversationModel(BaseModel):
     module: Mapped[str] = mapped_column(sqlalchemy.String(60), index=True)
     title: Mapped[str] = mapped_column(sqlalchemy.String(255), nullable=True)
     thumbnail: Mapped[str] = mapped_column(sqlalchemy.Text(), nullable=True)
+    description: Mapped[str] = mapped_column(sqlalchemy.Text(), nullable=True)
     page_id: Mapped[int] = mapped_column(
         sqlalchemy.Integer, index=True, nullable=True)
     rev_id: Mapped[int] = mapped_column(sqlalchemy.Integer, nullable=True)
-    updated_at: Mapped[int] = mapped_column(
-        sqlalchemy.TIMESTAMP, index=True, server_default=sqlalchemy.func.now())
+    updated_at: Mapped[int] = mapped_column(sqlalchemy.BigInteger, index=True)
     pinned: Mapped[bool] = mapped_column(
         sqlalchemy.Boolean, default=False, index=True)
     extra: Mapped[dict] = mapped_column(sqlalchemy.JSON, default={})
@@ -46,13 +47,8 @@ class ConversationHelper:
         await self.session.__aexit__(exc_type, exc, tb)
         pass
 
-    async def add(self, user_id: int, module: str, title: Optional[str] = None, page_id: Optional[int] = None, rev_id: Optional[int] = None, extra: Optional[dict] = None):
-        obj = ConversationModel(user_id=user_id, module=module, title=title,
-                                page_id=page_id, rev_id=rev_id, updated_at=sqlalchemy.func.current_timestamp())
-
-        if extra is not None:
-            obj.extra = extra
-
+    async def add(self, obj: ConversationModel):
+        obj.updated_at = int(time.time())
         self.session.add(obj)
         await self.session.commit()
         await self.session.refresh(obj)
@@ -60,11 +56,12 @@ class ConversationHelper:
 
     async def refresh_updated_at(self, conversation_id: int):
         stmt = update(ConversationModel).where(ConversationModel.id ==
-                                               conversation_id).values(updated_at=sqlalchemy.func.current_timestamp())
+                                               conversation_id).values(updated_at=int(time.time()))
         await self.session.execute(stmt)
         await self.session.commit()
 
     async def update(self, obj: ConversationModel):
+        obj.updated_at = int(time.time())
         await self.session.merge(obj)
         await self.session.commit()
         await self.session.refresh(obj)
@@ -85,14 +82,25 @@ class ConversationHelper:
 
         return await self.session.scalars(stmt)
 
-    async def find_by_id(self, conversation_id: int):
-        async with self.create_session() as session:
-            stmt = sqlalchemy.select(ConversationModel).where(
-                ConversationModel.id == conversation_id)
-            return await session.scalar(stmt)
+    async def find_by_id(self, id: int):
+        stmt = sqlalchemy.select(ConversationModel).where(
+            ConversationModel.id == id)
+        return await self.session.scalar(stmt)
+    
+    async def filter_user_owned_ids(self, ids: list[int], user_id: int) -> list[int]:
+        stmt = sqlalchemy.select(ConversationModel.id) \
+            .where(ConversationModel.id.in_(ids)).where(ConversationModel.user_id == user_id)
+        return list(await self.session.scalars(stmt))
 
     async def remove(self, conversation_id: int):
         stmt = sqlalchemy.delete(ConversationModel).where(
             ConversationModel.id == conversation_id)
         await self.session.execute(stmt)
+        await self.session.commit()
+
+    async def remove_multiple(self, ids: list[int]):
+        stmt = sqlalchemy.delete(ConversationModel) \
+            .where(ConversationModel.id.in_(ids))
+
+        await self.session.execute(stmt)
         await self.session.commit()
\ No newline at end of file
diff --git a/api/model/toolkit_ui/page_title.py b/api/model/toolkit_ui/page_title.py
index 3ef0c3b..984b4e4 100644
--- a/api/model/toolkit_ui/page_title.py
+++ b/api/model/toolkit_ui/page_title.py
@@ -1,5 +1,5 @@
 from __future__ import annotations
-import datetime
+import time
 
 from typing import Optional
 import sqlalchemy
@@ -17,8 +17,7 @@ class PageTitleModel(BaseModel):
         sqlalchemy.Integer, primary_key=True, autoincrement=True)
     page_id: Mapped[int] = mapped_column(sqlalchemy.Integer, index=True)
     title: Mapped[str] = mapped_column(sqlalchemy.String(255), nullable=True)
-    updated_at: Mapped[int] = mapped_column(
-        sqlalchemy.TIMESTAMP, index=True, server_default=sqlalchemy.func.now())
+    updated_at: Mapped[int] = mapped_column(sqlalchemy.BigInteger, index=True)
 
 
 class PageTitleHelper:
@@ -58,11 +57,11 @@ class PageTitleHelper:
         title_info = await self.find_by_title(title)
         if title_info is None:
             return True
-        if title_info.updated_at < (datetime.now() - datetime.timedelta(days=7)):
+        if time.time() - title_info.updated_at > 60:
             return True
 
     async def add(self, page_id: int, title: Optional[str] = None):
-        obj = PageTitleModel(page_id=page_id, title=title, updated_at=sqlalchemy.func.current_timestamp())
+        obj = PageTitleModel(page_id=page_id, title=title, updated_at=int(time.time()))
 
         self.session.add(obj)
         await self.session.commit()
@@ -71,14 +70,14 @@ class PageTitleHelper:
 
     async def set_title(self, page_id: int, title: Optional[str] = None):
         stmt = update(PageTitleModel).where(
-            PageTitleModel.page_id == page_id).values(title=title, updated_at=sqlalchemy.func.current_timestamp())
+            PageTitleModel.page_id == page_id).values(title=title, updated_at=int(time.time()))
         await self.session.execute(stmt)
         await self.session.commit()
 
     async def update(self, obj: PageTitleModel, ignore_updated_at: bool = False):
-        self.session.merge(obj)
+        await self.session.merge(obj)
         if not ignore_updated_at:
-            obj.updated_at = sqlalchemy.func.current_timestamp()
+            obj.updated_at = int(time.time())
         await self.session.commit()
         await self.session.refresh(obj)
         return obj
diff --git a/api/route.py b/api/route.py
index e7d0bd0..07565ae 100644
--- a/api/route.py
+++ b/api/route.py
@@ -18,17 +18,19 @@ def init(app: web.Application):
 
         web.route('*', '/title/info', Index.update_title_info),
         web.route('*', '/user/info', Index.get_user_info),
-        web.route('*', '/conversations', Index.get_conversation_list),
+        web.route('*', '/conversation/list', Index.get_conversation_list),
         web.route('*', '/conversation/info', Index.get_conversation_info),
         web.route('POST', '/conversation/remove', Index.remove_conversation),
         web.route('DELETE', '/conversation/remove', Index.remove_conversation),
         web.route('POST', '/conversation/set_pinned', Index.set_conversation_pinned),
+        web.route('POST', '/conversation/set_title', Index.set_conversation_title),
 
         web.route('*', '/embedding_search/index_page', EmbeddingSearch.index_page),
         web.route('*', '/embedding_search/search', EmbeddingSearch.search),
 
-        web.route('*', '/chatcomplete/conversation_chunks', ChatComplete.get_conversation_chunk_list),
-        web.route('*', '/chatcomplete/conversation_chunk/{id:^\d+}', ChatComplete.get_conversation_chunk),
-        web.route('*', '/chatcomplete/message', ChatComplete.start_chat_complete),
-        web.route('*', '/chatcomplete/message/stream', ChatComplete.chat_complete_stream),
+        web.route('*', '/chatcomplete/conversation_chunk/list', ChatComplete.get_conversation_chunk_list),
+        web.route('*', '/chatcomplete/conversation_chunk/info', ChatComplete.get_conversation_chunk),
+        web.route('POST', '/chatcomplete/message', ChatComplete.start_chat_complete),
+        web.route('GET', '/chatcomplete/message/stream', ChatComplete.chat_complete_stream),
+        web.route('POST', '/chatcomplete/get_point_cost', ChatComplete.get_point_cost),
     ])
diff --git a/config-example.py b/config-example.py
index 06ea447..6aa04c6 100644
--- a/config-example.py
+++ b/config-example.py
@@ -39,8 +39,6 @@ CHATCOMPLETE_OUTPUT_REPLACE = {
   "人工智能程式": "虛擬人物程序",
 }
 
-CHATCOMPLETE_DEFAULT_CONVERSATION_TITLE = "无标题"
-
 CHATCOMPLETE_BOT_NAME = "寫作助手"
 
 PROMPTS = {
diff --git a/main.py b/main.py
index d9585ce..0cc4471 100644
--- a/main.py
+++ b/main.py
@@ -17,7 +17,7 @@ from api.model.embedding_search.title_index import TitleIndexModel as _
 from service.tiktoken import TikTokenService
 
 async def index(request: web.Request):
-    return utils.web.api_response(1, data={"message": "Isekai toolkit API"}, request=request)
+    return await utils.web.api_response(1, data={"message": "Isekai toolkit API"}, request=request)
 
 async def init_mw_api(app: web.Application):
     mw_api = MediaWikiApi.create()
diff --git a/noawait.py b/noawait.py
index ce7eca5..e0e6c20 100644
--- a/noawait.py
+++ b/noawait.py
@@ -1,34 +1,98 @@
 from __future__ import annotations
 from asyncio import AbstractEventLoop, Task
 import asyncio
+import atexit
 from functools import wraps
+import random
 
 import sys
 import traceback
-from typing import Callable, Coroutine
+from typing import Callable, Coroutine, Optional, TypedDict
+
+class TimerInfo(TypedDict):
+    id: int
+    callback: Callable
+    interval: float
+    next_time: float
 
 class NoAwaitPool:
     def __init__(self, loop: AbstractEventLoop):
         self.task_list: list[Task] = []
+        self.timer_map: dict[int, TimerInfo] = {}
         self.loop = loop
         self.running = True
 
+        self.should_refresh_task = False
+        self.next_timer_time: Optional[float] = None
+
         self.on_error: list[Callable] = []
 
         self.gc_task = loop.create_task(self._run_gc())
+        self.timer_task = loop.create_task(self._run_timer())
+
+        atexit.register(self.end_task)
 
     async def end(self):
-        print("Stopping NoAwait Tasks...")
-        self.running = False
-        for task in self.task_list:
-            await self._finish_task(task)
-        
-        await self.gc_task
+        if self.running:
+            print("Stopping NoAwait Tasks...")
+            self.running = False
+            for task in self.task_list:
+                await self._finish_task(task)
+            
+            await self.gc_task
+            await self.timer_task
+
+    def end_task(self):
+        if self.running and not self.loop.is_closed():
+            self.loop.run_until_complete(self.end())
     
+    async def _wrap_task(self, task: Task):
+        try:
+            await task
+        except Exception as e:
+            handled = False
+            for handler in self.on_error:
+                try:
+                    handler_ret = handler(e)
+                    await handler_ret
+                    handled = True
+                except Exception as handler_err:
+                    print("Exception on error handler: " + str(handler_err), file=sys.stderr)
+                    traceback.print_exc()
+
+            if not handled:
+                print(e, file=sys.stderr)
+                traceback.print_exc()
+        finally:
+            self.should_refresh_task = True
+
     def add_task(self, coroutine: Coroutine):
         task = self.loop.create_task(coroutine)
         self.task_list.append(task)
 
+    def add_timer(self, callback: Callable, interval: float) -> int:
+        id = random.randint(0, 1000000000)
+        while id in self.timer_map:
+            id = random.randint(0, 1000000000)
+
+        now = self.loop.time()
+        next_time = now + interval
+        self.timer_map[id] = {
+            "id": id,
+            "callback": callback,
+            "interval": interval,
+            "next_time": next_time
+        }
+
+        if self.next_timer_time is None or next_time < self.next_timer_time:
+            self.next_timer_time = next_time
+            
+        return id
+    
+    def remove_timer(self, id: int):
+        if id in self.timer_map:
+            del self.timer_map[id]
+
     def wrap(self, f):
         @wraps(f)
         def decorated_function(*args, **kwargs):
@@ -47,8 +111,7 @@ class NoAwaitPool:
             for handler in self.on_error:
                 try:
                     handler_ret = handler(e)
-                    if handler_ret is Coroutine:
-                        await handler_ret
+                    await handler_ret
                     handled = True
                 except Exception as handler_err:
                     print("Exception on error handler: " + str(handler_err), file=sys.stderr)
@@ -57,16 +120,46 @@ class NoAwaitPool:
             if not handled:
                 print(e, file=sys.stderr)
                 traceback.print_exc()
-                
 
     async def _run_gc(self):
         while self.running:
-            should_remove = []
-            for task in self.task_list:
-                if task.done():
-                    await self._finish_task(task)
-                    should_remove.append(task)
-            for task in should_remove:
-                self.task_list.remove(task)
+            if self.should_refresh_task:
+                should_remove = []
+                for task in self.task_list:
+                    if task.done():
+                        await self._finish_task(task)
+                        should_remove.append(task)
+                for task in should_remove:
+                    self.task_list.remove(task)
+
+            await asyncio.sleep(0.1)
+
+    async def _run_timer(self):
+        while self.running:
+            now = self.loop.time()
+            if self.next_timer_time is not None and now >= self.next_timer_time:
+                self.next_timer_time = None
+                for timer in self.timer_map.values():
+                    if now >= timer["next_time"]:
+                        timer["next_time"] = now + timer["interval"]
+                        try:
+                            result = timer["callback"]()
+                            self.add_task(result)
+                        except Exception as e:
+                            handled = False
+                            for handler in self.on_error:
+                                try:
+                                    handler_ret = handler(e)
+                                    self.add_task(handler_ret)
+                                    handled = True
+                                except Exception as handler_err:
+                                    print("Exception on error handler: " + str(handler_err), file=sys.stderr)
+                                    traceback.print_exc()
 
+                            if not handled:
+                                print(e, file=sys.stderr)
+                                traceback.print_exc()
+                    if self.next_timer_time is None or timer["next_time"] < self.next_timer_time:
+                        self.next_timer_time = timer["next_time"]
+            
             await asyncio.sleep(0.1)
\ No newline at end of file
diff --git a/requirements-embedding.txt b/requirements-embedding.txt
new file mode 100644
index 0000000..3958881
--- /dev/null
+++ b/requirements-embedding.txt
@@ -0,0 +1,5 @@
+transformers
+--index-url https://download.pytorch.org/whl/cpu
+torch
+torchvision
+torchaudio
\ No newline at end of file
diff --git a/service/bert_embedding.py b/service/bert_embedding.py
new file mode 100644
index 0000000..56450a4
--- /dev/null
+++ b/service/bert_embedding.py
@@ -0,0 +1,143 @@
+from __future__ import annotations
+import time
+import config
+import asyncio
+import random
+import threading
+from typing import Optional, TypedDict
+import torch
+from transformers import pipeline
+from local import loop
+
+from service.tiktoken import TikTokenService
+
+BERT_EMBEDDING_QUEUE_TIMEOUT = 1
+
+class BERTEmbeddingQueueTaskInfo(TypedDict):
+    task_id: int
+    text: str
+    embedding: torch.Tensor
+
+class BERTEmbeddingQueue:
+    def init(self):
+        self.embedding_model = pipeline("feature-extraction", model="bert-base-chinese")
+        self.task_map: dict[int, BERTEmbeddingQueueTaskInfo] = {}
+        self.task_list: list[BERTEmbeddingQueueTaskInfo] = []
+        self.lock = threading.Lock()
+
+        self.thread: Optional[threading.Thread] = None
+        self.running = False
+
+    async def get_embeddings(self, text: str):
+        text = "[CLS]" + text + "[SEP]"
+        task_id = random.randint(0, 1000000000)
+        with self.lock:
+            while task_id in self.task_map:
+                task_id = random.randint(0, 1000000000)
+
+            task_info = {
+                "task_id": task_id,
+                "text": text,
+                "embedding": None
+            }
+            self.task_map[task_id] = task_info
+            self.task_list.append(task_info)
+
+        self.start_queue()
+        while True:
+            task_info = self.pop_task(task_id)
+            if task_info is not None:
+                return task_info["embedding"]
+
+            await asyncio.sleep(0.01)
+    
+    def pop_task(self, task_id):
+        with self.lock:
+            if task_id in self.task_map:
+                task_info = self.task_map[task_id]
+                if task_info["embedding"] is not None:
+                    del self.task_map[task_id]
+                    return task_info
+                
+            return None
+
+    def run(self):
+        running = True
+        last_task_time = None
+        while running and self.running:
+            current_time = time.time()
+            task = None
+            with self.lock:
+                if len(self.task_list) > 0:
+                    task = self.task_list.pop(0)
+
+            if task is not None:
+                embeddings = self.embedding_model(task["text"])
+
+                with self.lock:
+                    task["embedding"] = embeddings[0][1]
+
+                last_task_time = time.time()
+            elif last_task_time is not None and current_time > last_task_time + BERT_EMBEDDING_QUEUE_TIMEOUT:
+                self.thread = None
+                self.running = False
+                running = False
+            else:
+                time.sleep(0.01)
+        
+    def start_queue(self):
+        if not self.running:
+            self.running = True
+            self.thread = threading.Thread(target=self.run)
+            self.thread.start()
+
+bert_embedding_queue = BERTEmbeddingQueue()
+bert_embedding_queue.init()
+
+class BERTEmbeddingService:
+    instance = None
+
+    @staticmethod
+    async def create() -> BERTEmbeddingService:
+        if BERTEmbeddingService.instance is None:
+            BERTEmbeddingService.instance = BERTEmbeddingService()
+            await BERTEmbeddingService.instance.init()
+        return BERTEmbeddingService.instance
+
+    async def init(self):
+        self.tiktoken = await TikTokenService.create()
+        self.embedding_queue = BERTEmbeddingQueue()
+        await loop.run_in_executor(None, self.embedding_queue.init)
+
+    async def get_embeddings(self, docs, on_progress=None):
+        if len(docs) == 0:
+            return ([], 0)
+
+        if on_progress is not None:
+            await on_progress(0, len(docs))
+
+        embeddings = []
+        token_usage = 0
+
+        for doc in docs:
+            if "text" in doc:
+                tokens = await self.tiktoken.get_tokens(doc["text"])
+                token_usage += tokens
+                embeddings.append({
+                    "id": doc["id"],
+                    "text": doc["text"],
+                    "embedding": self.model.encode(doc["text"]),
+                    "tokens": tokens
+                })
+            else:
+                embeddings.append({
+                    "id": doc["id"],
+                    "text": doc["text"],
+                    "embedding": None,
+                    "tokens": 0
+                })
+
+            if on_progress is not None:
+                await on_progress(1, len(docs))
+
+        return (embeddings, token_usage)
\ No newline at end of file
diff --git a/service/chat_complete.py b/service/chat_complete.py
index e2d6e54..f634536 100644
--- a/service/chat_complete.py
+++ b/service/chat_complete.py
@@ -1,12 +1,18 @@
 from __future__ import annotations
+import time
 import traceback
 from typing import Optional, Tuple, TypedDict
-from api.model.chat_complete.conversation import ConversationChunkHelper, ConversationChunkModel
+
+import sqlalchemy
+from api.model.chat_complete.conversation import (
+    ConversationChunkHelper,
+    ConversationChunkModel,
+)
 import sys
 from api.model.toolkit_ui.conversation import ConversationHelper, ConversationModel
 
 import config
-import utils.config
+import utils.config, utils.web
 
 from aiohttp import web
 from api.model.embedding_search.title_collection import TitleCollectionModel
@@ -18,21 +24,21 @@ from service.mediawiki_api import MediaWikiApi
 from service.openai_api import OpenAIApi
 from service.tiktoken import TikTokenService
 
-
 class ChatCompleteServicePrepareResponse(TypedDict):
     extract_doc: list
     question_tokens: int
-
+    conversation_id: int
+    chunk_id: int
 
 class ChatCompleteServiceResponse(TypedDict):
     message: str
     message_tokens: int
     total_tokens: int
     finish_reason: str
-    conversation_id: int
+    question_message_id: str
+    response_message_id: str
     delta_data: dict
 
-
 class ChatCompleteService:
     def __init__(self, dbs: DatabaseService, title: str):
         self.dbs = dbs
@@ -58,6 +64,7 @@ class ChatCompleteService:
         self.question = ""
         self.question_tokens: Optional[int] = None
         self.conversation_id: Optional[int] = None
+        self.conversation_start_time: Optional[int] = None
 
         self.delta_data = {}
 
@@ -81,22 +88,31 @@ class ChatCompleteService:
     async def get_question_tokens(self, question: str):
         return await self.tiktoken.get_tokens(question)
 
-    async def prepare_chat_complete(self, question: str, conversation_id: Optional[str] = None, user_id: Optional[int] = None,
-                                    question_tokens: Optional[int] = None, 
-                                    embedding_search: Optional[EmbeddingSearchArgs] = None) -> ChatCompleteServicePrepareResponse:
+    async def prepare_chat_complete(
+        self,
+        question: str,
+        conversation_id: Optional[str] = None,
+        user_id: Optional[int] = None,
+        question_tokens: Optional[int] = None,
+        edit_message_id: Optional[str] = None,
+        embedding_search: Optional[EmbeddingSearchArgs] = None,
+    ) -> ChatCompleteServicePrepareResponse:
         if user_id is not None:
             user_id = int(user_id)
 
         self.user_id = user_id
         self.question = question
+        self.conversation_start_time = int(time.time())
 
         self.conversation_info = None
         if conversation_id is not None:
             self.conversation_id = int(conversation_id)
-            self.conversation_info = await self.conversation_helper.find_by_id(self.conversation_id)
+            self.conversation_info = await self.conversation_helper.find_by_id(
+                self.conversation_id
+            )
         else:
             self.conversation_id = None
-        
+
         if self.conversation_info is not None:
             if self.conversation_info.user_id != user_id:
                 raise web.HTTPUnauthorized()
@@ -106,97 +122,201 @@ class ChatCompleteService:
         else:
             self.question_tokens = question_tokens
 
-        if (len(question) * 4 > config.CHATCOMPLETE_MAX_INPUT_TOKENS and
-                self.question_tokens > config.CHATCOMPLETE_MAX_INPUT_TOKENS):
+        if (
+            len(question) * 4 > config.CHATCOMPLETE_MAX_INPUT_TOKENS
+            and self.question_tokens > config.CHATCOMPLETE_MAX_INPUT_TOKENS
+        ):
             # If the question is too long, we need to truncate it
             raise web.HTTPRequestEntityTooLarge()
         
+        self.conversation_chunk = None
+        if self.conversation_info is not None:
+            chunk_id_list = await self.conversation_chunk_helper.get_chunk_id_list(self.conversation_id)
+
+            if edit_message_id and "," in edit_message_id:
+                (edit_chunk_id, edit_msg_id) = edit_message_id.split(",")
+                edit_chunk_id = int(edit_chunk_id)
+
+                # Remove overrided conversation chunks
+                start_overrided = False
+                should_remove_chunk_ids = []
+                for chunk_id in chunk_id_list:
+                    if start_overrided:
+                        should_remove_chunk_ids.append(chunk_id)
+                    else:
+                        if chunk_id == edit_chunk_id:
+                            start_overrided = True
+
+                if len(should_remove_chunk_ids) > 0:
+                    await self.conversation_chunk_helper.remove(should_remove_chunk_ids)
+
+                self.conversation_chunk = await self.conversation_chunk_helper.get_newest_chunk(
+                    self.conversation_id
+                )
+                # Remove outdated message
+                edit_message_pos = None
+                old_tokens = 0
+                for i in range(0, len(self.conversation_chunk.message_data)):
+                    msg_data = self.conversation_chunk.message_data[i]
+                    if msg_data["id"] == edit_msg_id:
+                        edit_message_pos = i
+                        break
+                    if "tokens" in msg_data and msg_data["tokens"]:
+                        old_tokens += msg_data["tokens"]
+                
+                if edit_message_pos:
+                    self.conversation_chunk.message_data = self.conversation_chunk.message_data[0:edit_message_pos]
+                    flag_modified(self.conversation_chunk, "message_data")
+                    self.conversation_chunk.tokens = old_tokens
+            else:
+                self.conversation_chunk = await self.conversation_chunk_helper.get_newest_chunk(
+                    self.conversation_id
+                )
+
+            # If the conversation is too long, we need to make a summary
+            if self.conversation_chunk.tokens > config.CHATCOMPLETE_MAX_MEMORY_TOKENS:
+                summary, tokens = await self.make_summary(
+                    self.conversation_chunk.message_data
+                )
+                new_message_log = [
+                    {
+                        "role": "summary",
+                        "content": summary,
+                        "tokens": tokens,
+                        "time": int(time.time()),
+                    }
+                ]
+
+                self.conversation_chunk = ConversationChunkModel(
+                    conversation_id=self.conversation_id,
+                    message_data=new_message_log,
+                    tokens=tokens,
+                )
+
+                self.conversation_chunk = await self.conversation_chunk_helper.add(self.conversation_chunk)
+        else:
+            # 创建新对话
+            title_info = self.embedding_search.title_info
+            self.conversation_info = ConversationModel(
+                user_id=self.user_id,
+                module="chatcomplete",
+                page_id=title_info["page_id"],
+                rev_id=title_info["rev_id"],
+            )
+            self.conversation_info = await self.conversation_helper.add(
+                self.conversation_info,
+            )
+
+            self.conversation_chunk = ConversationChunkModel(
+                conversation_id=self.conversation_info.id,
+                message_data=[],
+                tokens=0,
+            )
+            self.conversation_chunk = await self.conversation_chunk_helper.add(
+                self.conversation_chunk
+            )
+
         # Extract document from wiki page index
         self.extract_doc = None
         if embedding_search is not None:
-            self.extract_doc, token_usage = await self.embedding_search.search(question, **embedding_search)
+            self.extract_doc, token_usage = await self.embedding_search.search(
+                question, **embedding_search
+            )
             if self.extract_doc is not None:
                 self.question_tokens += token_usage
 
         return ChatCompleteServicePrepareResponse(
             extract_doc=self.extract_doc,
-            question_tokens=self.question_tokens
+            question_tokens=self.question_tokens,
+            conversation_id=self.conversation_info.id,
+            chunk_id=self.conversation_chunk.id
         )
 
-    async def finish_chat_complete(self, on_message: Optional[callable] = None) -> ChatCompleteServiceResponse:
+    async def finish_chat_complete(
+        self, on_message: Optional[callable] = None
+    ) -> ChatCompleteServiceResponse:
         delta_data = {}
 
-        self.conversation_chunk = None
         message_log = []
-        if self.conversation_info is not None:
-            self.conversation_chunk = await self.conversation_chunk_helper.get_newest_chunk(self.conversation_id)
-
-            # If the conversation is too long, we need to make a summary
-            if self.conversation_chunk.tokens > config.CHATCOMPLETE_MAX_MEMORY_TOKENS:
-                summary, tokens = await self.make_summary(self.conversation_chunk.message_data)
-                new_message_log = [
-                    {"role": "summary", "content": summary, "tokens": tokens}
-                ]
-
-                self.conversation_chunk = await self.conversation_chunk_helper.add(self.conversation_id, new_message_log, tokens)
-
-                self.delta_data["conversation_chunk_id"] = self.conversation_chunk.id
-
-            message_log = []
+        if self.conversation_chunk is not None:
             for message in self.conversation_chunk.message_data:
-                message_log.append({
-                    "role": message["role"],
-                    "content": message["content"],
-                })
+                message_log.append(
+                    {
+                        "role": message["role"],
+                        "content": message["content"],
+                    }
+                )
 
         if self.extract_doc is not None:
-            doc_prompt_content = "\n".join(["%d. %s" % (
-                i + 1, doc["markdown"] or doc["text"]) for i, doc in enumerate(self.extract_doc)])
+            doc_prompt_content = "\n".join(
+                [
+                    "%d. %s" % (i + 1, doc["markdown"] or doc["text"])
+                    for i, doc in enumerate(self.extract_doc)
+                ]
+            )
 
-            doc_prompt = utils.config.get_prompt("extracted_doc", "prompt", {
-                                                    "content": doc_prompt_content})
+            doc_prompt = utils.config.get_prompt(
+                "extracted_doc", "prompt", {"content": doc_prompt_content}
+            )
             message_log.append({"role": "user", "content": doc_prompt})
 
         system_prompt = utils.config.get_prompt("chat", "system_prompt")
 
         # Start chat complete
         if on_message is not None:
-            response = await self.openai_api.chat_complete_stream(self.question, system_prompt, message_log, on_message)
+            response = await self.openai_api.chat_complete_stream(
+                self.question, system_prompt, message_log, on_message
+            )
         else:
-            response = await self.openai_api.chat_complete(self.question, system_prompt, message_log)
-
-        if self.conversation_info is None:
-            # Create a new conversation
-            message_log_list = [
-                {"role": "user", "content": self.question, "tokens": self.question_tokens},
-                {"role": "assistant",
-                    "content": response["message"], "tokens": response["message_tokens"]},
-            ]
-            title = None
-            try:
-                title, token_usage = await self.make_title(message_log_list)
-                delta_data["title"] = title
-            except Exception as e:
-                title = config.CHATCOMPLETE_DEFAULT_CONVERSATION_TITLE
-                print(str(e), file=sys.stderr)
-                traceback.print_exc(file=sys.stderr)
+            response = await self.openai_api.chat_complete(
+                self.question, system_prompt, message_log
+            )
+
+        description = response["message"][0:150]
+
+        question_msg_id = utils.web.generate_uuid()
+        response_msg_id = utils.web.generate_uuid()
+
+        new_message_data = [
+            {
+                "id": question_msg_id,
+                "role": "user",
+                "content": self.question,
+                "tokens": self.question_tokens,
+                "time": self.conversation_start_time,
+            },
+            {
+                "id": response_msg_id,
+                "role": "assistant",
+                "content": response["message"],
+                "tokens": response["message_tokens"],
+                "time": int(time.time()),
+            },
+        ]
 
+        if self.conversation_info is not None:
             total_token_usage = self.question_tokens + response["message_tokens"]
-
-            title_info = self.embedding_search.title_info
-            self.conversation_info = await self.conversation_helper.add(self.user_id, "chatcomplete", page_id=title_info["page_id"], rev_id=title_info["rev_id"], title=title)
-            self.conversation_chunk = await self.conversation_chunk_helper.add(self.conversation_info.id, message_log_list, total_token_usage)
-        else:
-            # Update the conversation chunk
-            await self.conversation_helper.refresh_updated_at(self.conversation_id)
-
-            self.conversation_chunk.message_data.append(
-                {"role": "user", "content": self.question, "tokens": self.question_tokens})
-            self.conversation_chunk.message_data.append(
-                {"role": "assistant", "content": response["message"], "tokens": response["message_tokens"]})
+            # Generate title if not exists
+            if self.conversation_info.title is None:
+                title = None
+                try:
+                    title, token_usage = await self.make_title(new_message_data)
+                    delta_data["title"] = title
+                except Exception as e:
+                    print(str(e), file=sys.stderr)
+                    traceback.print_exc(file=sys.stderr)
+
+                self.conversation_info.title = title
+
+            # Update conversation info
+            self.conversation_info.description = description
+
+            await self.conversation_helper.update(self.conversation_info)
+            
+            # Update conversation chunk
+            self.conversation_chunk.message_data.extend(new_message_data)
             flag_modified(self.conversation_chunk, "message_data")
-            self.conversation_chunk.tokens += self.question_tokens + \
-                response["message_tokens"]
+            self.conversation_chunk.tokens += total_token_usage
 
             await self.conversation_chunk_helper.update(self.conversation_chunk)
 
@@ -205,17 +325,18 @@ class ChatCompleteService:
             message_tokens=response["message_tokens"],
             total_tokens=response["total_tokens"],
             finish_reason=response["finish_reason"],
-            conversation_id=self.conversation_info.id,
-            delta_data=delta_data
+            question_message_id=question_msg_id,
+            response_message_id=response_msg_id,
+            delta_data=delta_data,
         )
-    
+
     async def set_latest_point_cost(self, point_cost: int) -> bool:
         if self.conversation_chunk is None:
             return False
 
         if len(self.conversation_chunk.message_data) == 0:
             return False
-        
+
         for i in range(len(self.conversation_chunk.message_data) - 1, -1, -1):
             if self.conversation_chunk.message_data[i]["role"] == "assistant":
                 self.conversation_chunk.message_data[i]["point_cost"] = point_cost
@@ -224,44 +345,50 @@ class ChatCompleteService:
 
                 return True
 
-
     async def make_summary(self, message_log_list: list) -> tuple[str, int]:
         chat_log: list[str] = []
 
         for message_data in message_log_list:
-            if message_data["role"] == 'summary':
+            if message_data["role"] == "summary":
                 chat_log.append(message_data["content"])
-            elif message_data["role"] == 'assistant':
+            elif message_data["role"] == "assistant":
                 chat_log.append(
-                    f'{config.CHATCOMPLETE_BOT_NAME}: {message_data["content"]}')
+                    f'{config.CHATCOMPLETE_BOT_NAME}: {message_data["content"]}'
+                )
             else:
                 chat_log.append(f'User: {message_data["content"]}')
 
-        chat_log_str = '\n'.join(chat_log)
+        chat_log_str = "\n".join(chat_log)
 
-        summary_system_prompt = utils.config.get_prompt(
-            "summary", "system_prompt")
+        summary_system_prompt = utils.config.get_prompt("summary", "system_prompt")
         summary_prompt = utils.config.get_prompt(
-            "summary", "prompt", {"content": chat_log_str})
+            "summary", "prompt", {"content": chat_log_str}
+        )
 
-        response = await self.openai_api.chat_complete(summary_prompt, summary_system_prompt)
+        response = await self.openai_api.chat_complete(
+            summary_prompt, summary_system_prompt
+        )
 
         return response["message"], response["message_tokens"]
 
     async def make_title(self, message_log_list: list) -> tuple[str, int]:
         chat_log: list[str] = []
         for message_data in message_log_list:
-            if message_data["role"] == 'assistant':
+            if message_data["role"] == "assistant":
                 chat_log.append(
-                    f'{config.CHATCOMPLETE_BOT_NAME}: {message_data["content"]}')
-            elif message_data["role"] == 'user':
+                    f'{config.CHATCOMPLETE_BOT_NAME}: {message_data["content"]}'
+                )
+            elif message_data["role"] == "user":
                 chat_log.append(f'User: {message_data["content"]}')
 
-        chat_log_str = '\n'.join(chat_log)
+        chat_log_str = "\n".join(chat_log)
 
         title_system_prompt = utils.config.get_prompt("title", "system_prompt")
         title_prompt = utils.config.get_prompt(
-            "title", "prompt", {"content": chat_log_str})
+            "title", "prompt", {"content": chat_log_str}
+        )
 
-        response = await self.openai_api.chat_complete(title_prompt, title_system_prompt)
+        response = await self.openai_api.chat_complete(
+            title_prompt, title_system_prompt
+        )
         return response["message"], response["message_tokens"]
diff --git a/service/embedding_search.py b/service/embedding_search.py
index 7a977de..fa50ef5 100644
--- a/service/embedding_search.py
+++ b/service/embedding_search.py
@@ -9,12 +9,17 @@ from service.openai_api import OpenAIApi
 from service.tiktoken import TikTokenService
 from utils.wiki import getWikiSentences
 
+class EmbeddingRunningException(Exception):
+    pass
+
 class EmbeddingSearchArgs(TypedDict):
     limit: Optional[int]
     in_collection: Optional[bool]
     distance_limit: Optional[float]
 
 class EmbeddingSearchService:
+    indexing_page_ids: list[int] = []
+
     def __init__(self, dbs: DatabaseService, title: str):
         self.dbs = dbs
 
@@ -92,6 +97,9 @@ class EmbeddingSearchService:
 
         self.page_id = self.page_info["pageid"]
 
+        if self.page_id in self.indexing_page_ids:
+            raise EmbeddingRunningException("Page index is running now")
+
         # Create collection
         self.collection_info = await self.title_collection.find_by_title(self.base_title)
         if self.collection_info is None:
@@ -129,7 +137,6 @@ class EmbeddingSearchService:
         if self.unindexed_docs is None:
             return False
 
-
         chunk_limit = 500
 
         chunk_len = 0
diff --git a/service/mediawiki_api.py b/service/mediawiki_api.py
index 2238605..4cbbbc0 100644
--- a/service/mediawiki_api.py
+++ b/service/mediawiki_api.py
@@ -1,3 +1,4 @@
+from __future__ import annotations
 import json
 import sys
 import time
@@ -15,24 +16,49 @@ class MediaWikiApiException(Exception):
     def __str__(self) -> str:
         return self.info
 
-class MediaWikiPageNotFoundException(MediaWikiApiException):
-    pass
+class MediaWikiPageNotFoundException(Exception):
+    def __init__(self, info: str, code: Optional[str] = None) -> None:
+        super().__init__(info)
+        self.info = info
+        self.code = code
+        self.message = self.info
+
+    def __str__(self) -> str:
+        return self.info
+    
+class MediaWikiUserNoEnoughPointsException(Exception):
+    def __init__(self, info: str, code: Optional[str] = None) -> None:
+        super().__init__(info)
+        self.info = info
+        self.code = code
+        self.message = self.info
+
+    def __str__(self) -> str:
+        return self.info
+
+class ChatCompleteGetPointUsageResponse(TypedDict):
+    point_cost: int
 
 class ChatCompleteReportUsageResponse(TypedDict):
     point_cost: int
     transaction_id: str
 
 class MediaWikiApi:
-    cookie_jar = aiohttp.CookieJar(unsafe=True)
+    instance: MediaWikiApi = None
 
     @staticmethod
     def create():
-        return MediaWikiApi(config.MW_API)
+        if MediaWikiApi.instance is None:
+            MediaWikiApi.instance = MediaWikiApi(config.MW_API)
+
+        return MediaWikiApi.instance
 
     def __init__(self, api_url: str):
         self.api_url = api_url
-        self.login_time = 0.0
+
+        self.cookie_jar = aiohttp.CookieJar(unsafe=True)
         self.login_identity = None
+        self.login_time = 0.0
 
     async def get_page_info(self, title: str):
         async with aiohttp.ClientSession(cookie_jar=self.cookie_jar) as session:
@@ -50,7 +76,7 @@ class MediaWikiApi:
                     raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
                 
                 if "missing" in data["query"]["pages"][0]:
-                    raise MediaWikiPageNotFoundException()
+                    raise MediaWikiPageNotFoundException(data["error"]["info"], data["error"]["code"])
 
                 return data["query"]["pages"][0]
         
@@ -98,7 +124,21 @@ class MediaWikiApi:
                         ret["user"] = data["query"]["userinfo"]["name"]
                 
                 return ret
+            
+    async def is_logged_in(self,):
+        async with aiohttp.ClientSession(cookie_jar=self.cookie_jar) as session:
+            params = {
+                "action": "query",
+                "format": "json",
+                "formatversion": "2",
+                "meta": "userinfo"
+            }
+            async with session.get(self.api_url, params=params, proxy=config.REQUEST_PROXY) as resp:
+                data = await resp.json()
+                if "error" in data:
+                    raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
                 
+                return data["query"]["userinfo"]["id"] != 0
             
     async def get_token(self, token_type: str):
         async with aiohttp.ClientSession(cookie_jar=self.cookie_jar) as session:
@@ -145,8 +185,10 @@ class MediaWikiApi:
             
     async def refresh_login(self):
         if self.login_identity is None:
+            print("刷新MW机器人账号登录状态失败：没有保存的用户")
             return False
-        if time.time() - self.login_time > 30:
+        if time.time() - self.login_time > 3600:
+            print("刷新MW机器人账号登录状态")
             return await self.robot_login(self.login_identity["username"], self.login_identity["password"])
         
     async def chat_complete_user_info(self, user_id: int):
@@ -169,6 +211,32 @@ class MediaWikiApi:
                         raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
                 
                 return data["chatcompletebot"]["userinfo"]
+
+    async def chat_complete_get_point_cost(self, user_id: int, user_action: str, tokens: Optional[int] = None, extractlines: Optional[int] = None) -> ChatCompleteGetPointUsageResponse:
+        await self.refresh_login()
+
+        async with aiohttp.ClientSession(cookie_jar=self.cookie_jar) as session:
+            post_data = {
+                "action": "chatcompletebot",
+                "method": "reportusage",
+                "step": "check",
+                "userid": int(user_id) if user_id is not None else None,
+                "useraction": user_action,
+                "tokens": int(tokens) if tokens is not None else None,
+                "extractlines": int(extractlines) if extractlines is not None else None,
+                "format": "json",
+                "formatversion": "2",
+            }
+            # Filter out None values
+            post_data = {k: v for k, v in post_data.items() if v is not None}
+            async with session.post(self.api_url, data=post_data, proxy=config.REQUEST_PROXY) as resp:
+                data = await resp.json()
+                if "error" in data:
+                    print(data)
+                    raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
+                
+                point_cost = int(data["chatcompletebot"]["reportusage"]["pointcost"] or 0)
+                return ChatCompleteGetPointUsageResponse(point_cost=point_cost)
             
     async def chat_complete_start_transaction(self, user_id: int, user_action: str, tokens: Optional[int] = None, extractlines: Optional[int] = None) -> ChatCompleteReportUsageResponse:
         await self.refresh_login()
@@ -178,10 +246,10 @@ class MediaWikiApi:
                 "action": "chatcompletebot",
                 "method": "reportusage",
                 "step": "start",
-                "userid": int(user_id),
+                "userid": int(user_id) if user_id is not None else None,
                 "useraction": user_action,
-                "tokens": int(tokens),
-                "extractlines": int(extractlines),
+                "tokens": int(tokens) if tokens is not None else None,
+                "extractlines": int(extractlines) if extractlines is not None else None,
                 "format": "json",
                 "formatversion": "2",
             }
@@ -190,10 +258,13 @@ class MediaWikiApi:
             async with session.post(self.api_url, data=post_data, proxy=config.REQUEST_PROXY) as resp:
                 data = await resp.json()
                 if "error" in data:
-                    print(data)
-                    raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
+                    if data["error"]["code"] == "noenoughpoints":
+                        raise MediaWikiUserNoEnoughPointsException(data["error"]["info"], data["error"]["info"])
+                    else:
+                        raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
                 
-                return ChatCompleteReportUsageResponse(point_cost=int(data["chatcompletebot"]["reportusage"]["pointcost"]),
+                point_cost = int(data["chatcompletebot"]["reportusage"]["pointcost"] or 0)
+                return ChatCompleteReportUsageResponse(point_cost=point_cost,
                                                        transaction_id=data["chatcompletebot"]["reportusage"]["transactionid"])
             
     async def chat_complete_end_transaction(self, transaction_id: str, tokens: Optional[int] = None):
@@ -237,7 +308,7 @@ class MediaWikiApi:
                 }
                 # Filter out None values
                 post_data = {k: v for k, v in post_data.items() if v is not None}
-                async with session.get(self.api_url, data=post_data, proxy=config.REQUEST_PROXY) as resp:
+                async with session.post(self.api_url, data=post_data, proxy=config.REQUEST_PROXY) as resp:
                     data = await resp.json()
                     if "error" in data:
                         raise MediaWikiApiException(data["error"]["info"], data["error"]["code"])
diff --git a/service/openai_api.py b/service/openai_api.py
index 29c82f6..8d62088 100644
--- a/service/openai_api.py
+++ b/service/openai_api.py
@@ -1,4 +1,5 @@
 from __future__ import annotations
+import asyncio
 import json
 from typing import Callable, Optional, TypedDict
 
@@ -36,20 +37,20 @@ class OpenAIApi:
     def build_header(self):
         if config.OPENAI_API_TYPE == "azure":
             return {
-                "Content-Type": "application/json",
-                "Accept": "application/json",
+                "content-type": "application/json",
+                "accept": "application/json",
                 "api-key": self.api_key
             }
         else:
             return {
-                "Authorization": f"Bearer {self.api_key}",
-                "Content-Type": "application/json",
-                "Accept": "application/json",
+                "authorization": f"Bearer {self.api_key}",
+                "content-type": "application/json",
+                "accept": "application/json",
             }
         
     def get_url(self, method: str):
         if config.OPENAI_API_TYPE == "azure":
-            if method == "completions":
+            if method == "chat/completions":
                 return self.api_url + "/openai/deployments/" + config.AZURE_OPENAI_CHATCOMPLETE_DEPLOYMENT_NAME + "/" + method
             elif method == "embeddings":
                 return self.api_url + "/openai/deployments/" + config.AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME + "/" + method
@@ -92,26 +93,41 @@ class OpenAIApi:
             if config.OPENAI_API_TYPE == "azure":
                 # Azure api does not support batch
                 for index, text in enumerate(text_list):
-                    async with session.post(url,
-                                            headers=self.build_header(),
-                                            params=params,
-                                            json={"input": text},
-                                            timeout=30,
-                                            proxy=config.REQUEST_PROXY) as resp:
-
-                        data = await resp.json()
-
-                        one_data = data["data"]
-                        if len(one_data) > 0:
-                            embedding = one_data[0]["embedding"]
-                            if embedding is not None:
-                                embedding = np.array(embedding)
-                            doc_list[index]["embedding"] = embedding
-
-                    token_usage += int(data["usage"]["total_tokens"])
-
-                    if on_index_progress is not None:
-                        await on_index_progress(index, len(text_list))
+                    retry_num = 0
+                    max_retry_num = 3
+                    while retry_num < max_retry_num:
+                        try:
+                            async with session.post(url,
+                                    headers=self.build_header(),
+                                    params=params,
+                                    json={"input": text},
+                                    timeout=30,
+                                    proxy=config.REQUEST_PROXY) as resp:
+                                
+                                data = await resp.json()
+
+                                one_data = data["data"]
+                                if len(one_data) > 0:
+                                    embedding = one_data[0]["embedding"]
+                                    if embedding is not None:
+                                        embedding = np.array(embedding)
+                                    doc_list[index]["embedding"] = embedding
+
+                            token_usage += int(data["usage"]["total_tokens"])
+
+                            if on_index_progress is not None:
+                                await on_index_progress(index, len(text_list))
+
+                            break
+                        except Exception as e:
+                            retry_num += 1
+
+                            if retry_num >= max_retry_num:
+                                raise e
+                            
+                            print("Error: %s" % e)
+                            print("Retrying...")
+                            await asyncio.sleep(0.5)
             else:
                 async with session.post(url,
                                         headers=self.build_header(),
@@ -158,7 +174,7 @@ class OpenAIApi:
     async def chat_complete(self, question: str, system_prompt: str, conversation: list[ChatCompleteMessageLog] = [], user = None):
         messageList = await self.make_message_list(question, system_prompt, conversation)
 
-        url = self.get_url("completions")
+        url = self.get_url("chat/completions")
 
         params = {}
         post_data = {
@@ -175,7 +191,7 @@ class OpenAIApi:
 
         async with aiohttp.ClientSession() as session:
             async with session.post(url,
-                                    headers=self.build_header,
+                                    headers=self.build_header(),
                                     params=params,
                                     json=post_data,
                                     timeout=30,
@@ -210,24 +226,38 @@ class OpenAIApi:
         for message in messageList:
             prompt_tokens += await tiktoken.get_tokens(message["content"])
 
-        params = {
-            "model": "gpt-3.5-turbo",
+        url = self.get_url("chat/completions")
+
+        params = {}
+        post_data = {
             "messages": messageList,
-            "stream": True,
             "user": user,
+            "stream": True,
+            "n": 1,
+            "max_tokens": 768,
+            "stop": None,
+            "temperature": 1,
+            "top_p": 0.95
         }
-        params = {k: v for k, v in params.items() if v is not None}
+
+        if config.OPENAI_API_TYPE == "azure":
+            params["api-version"] = "2023-05-15"
+        else:
+            post_data["model"] = "gpt-3.5-turbo"
+
+        post_data = {k: v for k, v in post_data.items() if v is not None}
 
         res_message: list[str] = []
         finish_reason = None
 
         async with sse_client.EventSource(
-            self.api_url + "/v1/chat/completions",
+            url,
             option={
                 "method": "POST"
             },
-            headers={"Authorization": f"Bearer {self.api_key}"},
-            json=params,
+            headers=self.build_header(),
+            params=params,
+            json=post_data,
             proxy=config.REQUEST_PROXY
         ) as session:
             async for event in session:
@@ -238,11 +268,13 @@ class OpenAIApi:
                 [DONE]
                 """
                 content_started = False
-
-                if event.data == "[DONE]":
+                
+                event_data = event.data.strip()
+                
+                if event_data == "[DONE]":
                     break
-                elif event.data[0] == "{" and event.data[-1] == "}":
-                    data = json.loads(event.data)
+                elif event_data[0] == "{" and event_data[-1] == "}":
+                    data = json.loads(event_data)
                     if "choices" in data and len(data["choices"]) > 0:
                         choice = data["choices"][0]
 
@@ -262,11 +294,14 @@ class OpenAIApi:
 
                             res_message.append(delta_message)
 
-                            if config.DEBUG:
-                                print(delta_message, end="", flush=True)
+                            # if config.DEBUG:
+                            #     print(delta_message, end="", flush=True)
 
                             if on_message is not None:
                                 await on_message(delta_message)
+                    
+                    if finish_reason is not None:
+                        break
 
         res_message_str = "".join(res_message)
         message_tokens = await tiktoken.get_tokens(res_message_str)
diff --git a/simple_query_builder.py b/simple_query_builder.py
deleted file mode 100644
index 7677a04..0000000
--- a/simple_query_builder.py
+++ /dev/null
@@ -1,50 +0,0 @@
-from __future__ import annotations
-import asyncpg
-
-class SimpleQueryBuilder:
-    def __init__(self):
-        self._table_name = ""
-        self._select = ["*"]
-        self._where = []
-        self._having = []
-        self._order_by = None
-        self._order_by_desc = False
-
-    def table(self, table_name: str):
-        self._table_name = table_name
-        return self
-    
-    def fields(self, fields: list[str]):
-        self.select = fields
-        return self
-    
-    def where(self, where: str, condition: str, param):
-        self._where.append((where, condition, param))
-        return self
-    
-    def having(self, having: str, condition: str, param):
-        self._having.append((having, condition, param))
-        return self
-
-    def build(self):
-        sql = "SELECT %s FROM %s" % (", ".join(self._select), self._table_name)
-
-        params = []
-        paramsLen = 0
-
-        if len(self._where) > 0:
-            sql += " WHERE "
-            for where, condition, param in self._where:
-                params.append(param)
-                paramsLen += 1
-                sql += "%s %s $%d AND " % (where, condition, paramsLen)
-
-        if self._order_by is not None:
-            sql += " ORDER BY %s %s" % (self._order_by, "DESC" if self._order_by_desc else "ASC")
-
-        if len(self._having) > 0:
-            sql += " HAVING "
-            for having, condition, param in self._having:
-                params.append(param)
-                paramsLen += 1
-                sql += "%s %s $%d AND " % (having, condition, paramsLen)
\ No newline at end of file
diff --git a/test/base.py b/test/base.py
new file mode 100644
index 0000000..bb81f7d
--- /dev/null
+++ b/test/base.py
@@ -0,0 +1,4 @@
+import sys
+import pathlib
+
+sys.path.append(str(pathlib.Path(__file__).parent.parent))
\ No newline at end of file
diff --git a/test/bert_embedding_queue.py b/test/bert_embedding_queue.py
new file mode 100644
index 0000000..a5b0cd2
--- /dev/null
+++ b/test/bert_embedding_queue.py
@@ -0,0 +1,27 @@
+import asyncio
+import time
+import base
+from local import loop, noawait
+from service.bert_embedding import bert_embedding_queue
+
+async def main():
+    embedding_list = []
+    start_time = time.time()
+    queue = []
+    with open("test/test.md", "r", encoding="utf-8") as fp:
+        text = fp.read()
+        lines = text.split("\n")
+        for line in lines:
+            line = line.strip()
+            if line == "":
+                continue
+
+            queue.append(bert_embedding_queue.get_embeddings(line))
+    embedding_list = await asyncio.gather(*queue)
+    end_time = time.time()
+    print("time cost: %.4f" % (end_time - start_time))
+    print("dimensions: %d" % len(embedding_list[0]))
+    await noawait.end()
+
+if __name__ == '__main__':
+    loop.run_until_complete(main())
\ No newline at end of file
diff --git a/test/chatcomplete.py b/test/chatcomplete.py
new file mode 100644
index 0000000..3fc840c
--- /dev/null
+++ b/test/chatcomplete.py
@@ -0,0 +1,37 @@
+import traceback
+import base
+import local
+from service.chat_complete import ChatCompleteService
+from service.database import DatabaseService
+
+from service.tiktoken import TikTokenService
+
+async def main():
+    dbs = await DatabaseService.create()
+    tiktoken = await TikTokenService.create()
+
+    async with ChatCompleteService(dbs, "代号:曙光的世界/黄昏的阿瓦隆") as chat_complete:
+        question = "你是谁？"
+        question_tokens = await tiktoken.get_tokens(question)
+
+        try:
+            prepare_res = await chat_complete.prepare_chat_complete(question, None, 1, question_tokens, {
+                "distance_limit": 0.6,
+                "limit": 10
+            })
+
+            print(prepare_res)
+            async def on_message(message: str):
+                # print(message)
+                pass
+
+            res = await chat_complete.finish_chat_complete(on_message)
+            print(res)
+        except Exception as err:
+            print(err)
+            traceback.print_exc()
+
+    await local.noawait.end()
+
+if __name__ == '__main__':
+    local.loop.run_until_complete(main())
\ No newline at end of file
diff --git a/test.py b/test/embedding_search.py
similarity index 94%
rename from test.py
rename to test/embedding_search.py
index 6b8adda..5be0875 100644
--- a/test.py
+++ b/test/embedding_search.py
@@ -1,37 +1,38 @@
-import local
-from service.database import DatabaseService
-
-from service.embedding_search import EmbeddingSearchService
-
-async def main():
-    dbs = await DatabaseService.create()
-
-    async with EmbeddingSearchService(dbs, "代号:曙光的世界/黄昏的阿瓦隆") as embedding_search:
-        await embedding_search.prepare_update_index()
-
-        async def on_index_progress(current, length):
-            print("\r索引进度：%.1f%%" % (current / length * 100), end="", flush=True)
-
-        print("")
-        await embedding_search.update_page_index(on_index_progress)
-        print("")
-
-        while True:
-            query = input("请输入要搜索的问题 (.exit 退出)：")
-            if query == ".exit":
-                break
-            res, token_usage = await embedding_search.search(query, 5)
-            total_length = 0
-            if res:
-                for one in res:
-                    total_length += len(one["markdown"])
-                    print("%s, distance=%.4f" % (one["markdown"], one["distance"]))
-            else:
-                print("未搜索到相关内容")
-
-            print("总长度：%d" % total_length)
-    
-    await local.noawait.end()
-
-if __name__ == '__main__':
+import base
+import local
+from service.database import DatabaseService
+
+from service.embedding_search import EmbeddingSearchService
+
+async def main():
+    dbs = await DatabaseService.create()
+
+    async with EmbeddingSearchService(dbs, "代号:曙光的世界/黄昏的阿瓦隆") as embedding_search:
+        await embedding_search.prepare_update_index()
+
+        async def on_index_progress(current, length):
+            print("\r索引进度：%.1f%%" % (current / length * 100), end="", flush=True)
+
+        print("")
+        await embedding_search.update_page_index(on_index_progress)
+        print("")
+
+        while True:
+            query = input("请输入要搜索的问题 (.exit 退出)：")
+            if query == ".exit":
+                break
+            res, token_usage = await embedding_search.search(query, 5)
+            total_length = 0
+            if res:
+                for one in res:
+                    total_length += len(one["markdown"])
+                    print("%s, distance=%.4f" % (one["markdown"], one["distance"]))
+            else:
+                print("未搜索到相关内容")
+
+            print("总长度：%d" % total_length)
+    
+    await local.noawait.end()
+
+if __name__ == '__main__':
     local.loop.run_until_complete(main())
\ No newline at end of file
diff --git a/test.md b/test/test.md
similarity index 100%
rename from test.md
rename to test/test.md
diff --git a/test_chatcomplete.js b/test/test_chatcomplete.js
similarity index 100%
rename from test_chatcomplete.js
rename to test/test_chatcomplete.js
diff --git a/test/timer.py b/test/timer.py
new file mode 100644
index 0000000..b4c9e56
--- /dev/null
+++ b/test/timer.py
@@ -0,0 +1,20 @@
+import asyncio
+import base
+from local import loop, noawait
+
+async def test_timer1():
+    print("timer1")
+
+async def test_timer2():
+    print("timer2")
+
+async def main():
+    timer_id = noawait.add_timer(test_timer1, 1)
+    timer_id = noawait.add_timer(test_timer2, 2)
+    print("Timer id: %d" % timer_id)
+    while True:
+        await asyncio.sleep(1)
+    await noawait.end()
+
+if __name__ == '__main__':
+    loop.run_until_complete(main())
\ No newline at end of file
diff --git a/utils/web.py b/utils/web.py
index 508642b..fcd22d2 100644
--- a/utils/web.py
+++ b/utils/web.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 from functools import wraps
+import json
 from typing import Any, Optional, Dict
 from aiohttp import web
 import jwt
@@ -8,22 +9,32 @@ import uuid
 
 ParamRule = Dict[str, Any]
 
-class ParamInvalidException(Exception):
+class ParamInvalidException(web.HTTPBadRequest):
     def __init__(self, param_list: list[str], rules: dict[str, ParamRule]):
         self.code = "param_invalid"
         self.param_list = param_list
         self.rules = rules
         param_list_str = "'" + ("', '".join(param_list)) + "'"
-        super().__init__(f"Param invalid: {param_list_str}")
+        super().__init__(f"Param invalid: {param_list_str}",
+                         content_type="application/json",
+                         body=json.dumps({
+                                "status": -1,
+                                "error": {
+                                    "code": self.code,
+                                    "message": f"Param invalid: {param_list_str}"
+                                }
+                            }))
 
 async def get_param(request: web.Request, rules: Optional[dict[str, ParamRule]] = None):
     params: dict[str, Any] = {}
+    for key, value in request.match_info.items():
+        params[key] = value
     for key, value in request.query.items():
         params[key] = value
     if request.method == 'POST':
         if request.headers.get('content-type') == 'application/json':
             data = await request.json()
-            if data is not None and data is dict:
+            if data is not None and isinstance(data, dict):
                 for key, value in data.items():
                     params[key] = value
         else:
@@ -34,7 +45,7 @@ async def get_param(request: web.Request, rules: Optional[dict[str, ParamRule]]
     if rules is not None:
         invalid_params: list[str] = []
         for key, rule in rules.items():
-            if "required" in rule and rule["required"] and params[key] is None:
+            if "required" in rule and rule["required"] and key not in params.keys():
                 invalid_params.append(key)
                 continue
             
@@ -50,9 +61,20 @@ async def get_param(request: web.Request, rules: Optional[dict[str, ParamRule]]
                         elif rule["type"] == float:
                             params[key] = float(params[key])
                         elif rule["type"] == bool:
-                            val = params[key].lower()
-                            if val == "false" or val == "0":
-                                params[key] = False
+                            val = params[key]
+                            if isinstance(val, bool):
+                                params[key] = val
+                            elif isinstance(val, str):
+                                val = val.lower()
+                                if val.lower() == "false" or val == "0":
+                                    params[key] = False
+                                else:
+                                    params[key] = True
+                            elif isinstance(val, int):
+                                if val == 0:
+                                    params[key] = False
+                                else:
+                                    params[key] = True
                             else:
                                 params[key] = True
                     except ValueError: