SurfSense/surfsense_backend/app/routes/chats_routes.py
2025-03-14 18:53:14 -07:00

260 lines
8.9 KiB
Python

from fastapi import APIRouter, Depends, HTTPException, Query
from fastapi.responses import StreamingResponse
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.future import select
from sqlalchemy.exc import IntegrityError, OperationalError
from typing import List
from app.db import get_async_session, User, SearchSpace, Chat
from app.schemas import ChatCreate, ChatUpdate, ChatRead, AISDKChatRequest
from app.tasks.stream_connector_search_results import stream_connector_search_results
from app.users import current_active_user
from app.utils.check_ownership import check_ownership
router = APIRouter()
@router.post("/chat")
async def handle_chat_data(
request: AISDKChatRequest,
session: AsyncSession = Depends(get_async_session),
user: User = Depends(current_active_user)
):
messages = request.messages
if messages[-1].role != "user":
raise HTTPException(
status_code=400, detail="Last message must be a user message")
user_query = messages[-1].content
search_space_id = request.data.get('search_space_id')
research_mode: str = request.data.get('research_mode')
selected_connectors: List[str] = request.data.get('selected_connectors')
# Convert search_space_id to integer if it's a string
if search_space_id and isinstance(search_space_id, str):
try:
search_space_id = int(search_space_id)
except ValueError:
raise HTTPException(
status_code=400, detail="Invalid search_space_id format")
# Check if the search space belongs to the current user
try:
await check_ownership(session, SearchSpace, search_space_id, user)
except HTTPException:
raise HTTPException(
status_code=403, detail="You don't have access to this search space")
response = StreamingResponse(stream_connector_search_results(
user_query,
user.id,
search_space_id,
session,
research_mode,
selected_connectors
))
response.headers['x-vercel-ai-data-stream'] = 'v1'
return response
@router.post("/chats/", response_model=ChatRead)
async def create_chat(
chat: ChatCreate,
session: AsyncSession = Depends(get_async_session),
user: User = Depends(current_active_user)
):
try:
await check_ownership(session, SearchSpace, chat.search_space_id, user)
db_chat = Chat(**chat.model_dump())
session.add(db_chat)
await session.commit()
await session.refresh(db_chat)
return db_chat
except HTTPException:
raise
except IntegrityError as e:
await session.rollback()
raise HTTPException(
status_code=400, detail="Database constraint violation. Please check your input data.")
except OperationalError as e:
await session.rollback()
raise HTTPException(
status_code=503, detail="Database operation failed. Please try again later.")
except Exception as e:
await session.rollback()
raise HTTPException(
status_code=500, detail="An unexpected error occurred while creating the chat.")
@router.get("/chats/", response_model=List[ChatRead])
async def read_chats(
skip: int = 0,
limit: int = 100,
session: AsyncSession = Depends(get_async_session),
user: User = Depends(current_active_user)
):
try:
result = await session.execute(
select(Chat)
.join(SearchSpace)
.filter(SearchSpace.user_id == user.id)
.offset(skip)
.limit(limit)
)
return result.scalars().all()
except OperationalError:
raise HTTPException(
status_code=503, detail="Database operation failed. Please try again later.")
except Exception:
raise HTTPException(
status_code=500, detail="An unexpected error occurred while fetching chats.")
@router.get("/chats/{chat_id}", response_model=ChatRead)
async def read_chat(
chat_id: int,
session: AsyncSession = Depends(get_async_session),
user: User = Depends(current_active_user)
):
try:
result = await session.execute(
select(Chat)
.join(SearchSpace)
.filter(Chat.id == chat_id, SearchSpace.user_id == user.id)
)
chat = result.scalars().first()
if not chat:
raise HTTPException(
status_code=404, detail="Chat not found or you don't have permission to access it")
return chat
except OperationalError:
raise HTTPException(
status_code=503, detail="Database operation failed. Please try again later.")
except Exception:
raise HTTPException(
status_code=500, detail="An unexpected error occurred while fetching the chat.")
@router.put("/chats/{chat_id}", response_model=ChatRead)
async def update_chat(
chat_id: int,
chat_update: ChatUpdate,
session: AsyncSession = Depends(get_async_session),
user: User = Depends(current_active_user)
):
try:
db_chat = await read_chat(chat_id, session, user)
update_data = chat_update.model_dump(exclude_unset=True)
for key, value in update_data.items():
setattr(db_chat, key, value)
await session.commit()
await session.refresh(db_chat)
return db_chat
except HTTPException:
raise
except IntegrityError:
await session.rollback()
raise HTTPException(
status_code=400, detail="Database constraint violation. Please check your input data.")
except OperationalError:
await session.rollback()
raise HTTPException(
status_code=503, detail="Database operation failed. Please try again later.")
except Exception:
await session.rollback()
raise HTTPException(
status_code=500, detail="An unexpected error occurred while updating the chat.")
@router.delete("/chats/{chat_id}", response_model=dict)
async def delete_chat(
chat_id: int,
session: AsyncSession = Depends(get_async_session),
user: User = Depends(current_active_user)
):
try:
db_chat = await read_chat(chat_id, session, user)
await session.delete(db_chat)
await session.commit()
return {"message": "Chat deleted successfully"}
except HTTPException:
raise
except IntegrityError:
await session.rollback()
raise HTTPException(
status_code=400, detail="Cannot delete chat due to existing dependencies.")
except OperationalError:
await session.rollback()
raise HTTPException(
status_code=503, detail="Database operation failed. Please try again later.")
except Exception:
await session.rollback()
raise HTTPException(
status_code=500, detail="An unexpected error occurred while deleting the chat.")
# test_data = [
# {
# "type": "TERMINAL_INFO",
# "content": [
# {
# "id": 1,
# "text": "Starting to search for crawled URLs...",
# "type": "info"
# },
# {
# "id": 2,
# "text": "Found 2 relevant crawled URLs",
# "type": "success"
# }
# ]
# },
# {
# "type": "SOURCES",
# "content": [
# {
# "id": 1,
# "name": "Crawled URLs",
# "type": "CRAWLED_URL",
# "sources": [
# {
# "id": 1,
# "title": "Webpage Title",
# "description": "Webpage Dec",
# "url": "https://jsoneditoronline.org/"
# },
# {
# "id": 2,
# "title": "Webpage Title",
# "description": "Webpage Dec",
# "url": "https://www.google.com/"
# }
# ]
# },
# {
# "id": 2,
# "name": "Files",
# "type": "FILE",
# "sources": [
# {
# "id": 3,
# "title": "Webpage Title",
# "description": "Webpage Dec",
# "url": "https://jsoneditoronline.org/"
# },
# {
# "id": 4,
# "title": "Webpage Title",
# "description": "Webpage Dec",
# "url": "https://www.google.com/"
# }
# ]
# }
# ]
# },
# {
# "type": "ANSWER",
# "content": [
# "## SurfSense Introduction",
# "Surfsense is A Personal NotebookLM and Perplexity-like AI Assistant for Everyone. Research and Never forget Anything. [1] [3]"
# ]
# }
# ]