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280 lines
10 KiB
Python
280 lines
10 KiB
Python
import asyncio
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import json
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import time
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import traceback
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from local import noawait
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from typing import Optional
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from aiohttp import WSMsgType, web
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from sqlalchemy import select
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from api.model.chat_complete.conversation import ConversationModel, ConversationChunkModel
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from noawait import NoAwaitPool
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from service.chat_complete import ChatCompleteService
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from service.database import DatabaseService
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from service.mediawiki_api import MediaWikiApi
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from service.tiktoken import TikTokenService
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import utils.web
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class ChatCompleteTaskList:
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def __init__(self, dbs: DatabaseService):
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self.on_message = None
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self.chunks: list[str] = []
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async def run():
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pass
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@noawait.wrap
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async def start(self):
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await self.run()
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class ChatComplete:
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@staticmethod
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@utils.web.token_auth
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async def get_conversation_chunk_list(request: web.Request):
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params = await utils.web.get_param(request, {
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"user_id": {
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"required": False,
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"type": int
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},
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"conversation_id": {
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"required": True,
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"type": int
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}
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})
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if request.get("caller") == "user":
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user_id = request.get("user")
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else:
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user_id = params.get("user_id")
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conversation_id = params.get("conversation_id")
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db = await DatabaseService.create(request.app)
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async with db.create_session() as session:
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stmt = select(ConversationModel).where(
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ConversationModel.id == conversation_id)
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conversation_data = await session.scalar(stmt)
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if conversation_data is None:
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return await utils.web.api_response(-1, error={
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"code": "conversation-not-found",
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"message": "Conversation not found."
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}, http_status=404, request=request)
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if conversation_data.user_id != user_id:
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return await utils.web.api_response(-1, error={
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"code": "permission-denied",
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"message": "Permission denied."
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}, http_status=403, request=request)
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stmt = select(ConversationChunkModel).with_only_columns([ConversationChunkModel.id, ConversationChunkModel.updated_at]) \
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.where(ConversationChunkModel.conversation_id == conversation_id).order_by(ConversationChunkModel.id.asc())
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conversation_chunk_result = await session.scalars(stmt)
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conversation_chunk_list = []
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for result in conversation_chunk_result:
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conversation_chunk_list.append({
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"id": result.id,
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"updated_at": result.updated_at
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})
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return await utils.web.api_response(1, conversation_chunk_list, request=request)
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@staticmethod
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@utils.web.token_auth
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async def get_conversation_chunk(request: web.Request):
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params = await utils.web.get_param(request, {
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"user_id": {
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"required": False,
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"type": int,
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},
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"chunk_id": {
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"required": True,
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"type": int,
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},
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})
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if request.get("caller") == "user":
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user_id = request.get("user")
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else:
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user_id = params.get("user_id")
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chunk_id = params.get("chunk_id")
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dbs = await DatabaseService.create(request.app)
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async with dbs.create_session() as session:
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stmt = select(ConversationChunkModel).where(
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ConversationChunkModel.id == chunk_id)
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conversation_data = await session.scalar(stmt)
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if conversation_data is None:
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return await utils.web.api_response(-1, error={
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"code": "conversation-chunk-not-found",
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"message": "Conversation chunk not found."
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}, http_status=404, request=request)
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if conversation_data.conversation.user_id != user_id:
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return await utils.web.api_response(-1, error={
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"code": "permission-denied",
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"message": "Permission denied."
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}, http_status=403, request=request)
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return await utils.web.api_response(1, conversation_data.__dict__, request=request)
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@staticmethod
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@utils.web.token_auth
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async def get_tokens(request: web.Request):
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params = await utils.web.get_param(request, {
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"question": {
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"type": str,
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"required": True
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}
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})
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question = params.get("question")
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tiktoken = await TikTokenService.create()
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tokens = await tiktoken.get_tokens(question)
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return await utils.web.api_response(1, {"tokens": tokens}, request=request)
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@staticmethod
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@utils.web.token_auth
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async def chat_complete(request: web.Request):
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params = await utils.web.get_param(request, {
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"title": {
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"type": str,
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"required": True,
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},
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"question": {
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"type": str,
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"required": True,
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},
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"conversation_id": {
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"type": int,
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"required": False,
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},
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"extra_limit": {
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"type": int,
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"required": False,
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"default": 10,
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},
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"in_collection": {
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"type": bool,
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"required": False,
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"default": False,
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},
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})
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user_id = request.get("user")
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caller = request.get("caller")
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page_title = params.get("title")
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question = params.get("question")
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conversation_id = params.get("conversation_id")
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extra_limit = params.get("extra_limit")
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in_collection = params.get("in_collection")
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dbs = await DatabaseService.create(request.app)
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tiktoken = await TikTokenService.create()
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mwapi = MediaWikiApi.create()
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if utils.web.is_websocket(request):
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ws = web.WebSocketResponse()
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await ws.prepare(request)
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try:
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async with ChatCompleteService(dbs, page_title) as chat_complete_service:
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if await chat_complete_service.page_index_exists():
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tokens = await tiktoken.get_tokens(question)
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transatcion_id = None
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point_cost = 0
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if request.get("caller") == "user":
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usage_res = await mwapi.chat_complete_start_transaction(user_id, "chatcomplete", tokens, extra_limit)
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transatcion_id = usage_res.get("transaction_id")
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point_cost = usage_res.get("point_cost")
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async def on_message(text: str):
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# Send message to client, start with "+" to indicate it's a message
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# use json will make the package 10x larger
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await ws.send_str("+" + text)
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async def on_extracted_doc(doc: list):
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await ws.send_json({
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'event': 'extract_doc',
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'status': 1,
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'doc': doc
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})
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try:
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chat_res = await chat_complete_service \
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.prepare_chat_complete(question, conversation_id=conversation_id, user_id=user_id, embedding_search={
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"limit": extra_limit,
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"in_collection": in_collection,
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})
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await ws.send_json({
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'event': 'done',
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'status': 1,
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**chat_res,
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})
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await chat_complete_service.set_latest_point_cost(point_cost)
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if transatcion_id:
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result = await mwapi.chat_complete_end_transaction(transatcion_id, chat_res["total_tokens"])
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except Exception as e:
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err_msg = f"Error while processing chat complete request: {e}"
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traceback.print_exc()
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if not ws.closed:
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await ws.send_json({
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'event': 'error',
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'status': -1,
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'message': err_msg,
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'error': {
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'code': 'internal_error',
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'title': page_title,
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},
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})
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if transatcion_id:
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result = await mwapi.chat_complete_cancel_transaction(transatcion_id, error=err_msg)
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else:
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await ws.send_json({
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'event': 'error',
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'status': -2,
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'message': "Page index not found.",
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'error': {
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'code': 'page_not_found',
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'title': page_title,
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},
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})
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# websocket closed
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except Exception as e:
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err_msg = f"Error while processing chat complete request: {e}"
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traceback.print_exc()
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if not ws.closed:
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await ws.send_json({
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'event': 'error',
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'status': -1,
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'message': err_msg,
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'error': {
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'code': 'internal_error',
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'title': page_title,
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},
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})
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finally:
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if not ws.closed:
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await ws.close()
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else:
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return await utils.web.api_response(-1, request=request, error={
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"code": "protocol-mismatch",
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"message": "Protocol mismatch, websocket request expected."
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}, http_status=400)
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