Files
flowsint/flowsint-api/app/api/routes/chat.py
2026-02-17 04:49:46 -03:00

115 lines
3.4 KiB
Python

from typing import Dict, List, Optional
from uuid import UUID
from fastapi import APIRouter, Depends, HTTPException, status
from fastapi.responses import StreamingResponse
from flowsint_core.core.models import Profile
from flowsint_core.core.postgre_db import get_db
from flowsint_core.core.services import (
NotFoundError,
create_chat_service,
)
from pydantic import BaseModel
from sqlalchemy.orm import Session
from app.api.deps import get_current_user
from app.api.schemas.chat import ChatCreate, ChatRead
router = APIRouter()
class ChatRequest(BaseModel):
prompt: str
context: Optional[List[str]] = None
@router.get("", response_model=List[ChatRead])
def get_chats(
db: Session = Depends(get_db), current_user: Profile = Depends(get_current_user)
):
service = create_chat_service(db)
return service.get_chats_for_user(current_user.id)
@router.get("/investigation/{investigation_id}", response_model=List[ChatRead])
def get_chats_by_investigation(
investigation_id: UUID,
db: Session = Depends(get_db),
current_user: Profile = Depends(get_current_user),
):
service = create_chat_service(db)
return service.get_by_investigation(investigation_id, current_user.id)
@router.post("/stream/{chat_id}")
async def stream_chat(
chat_id: UUID,
payload: ChatRequest,
db: Session = Depends(get_db),
current_user: Profile = Depends(get_current_user),
):
service = create_chat_service(db)
try:
chat = service.get_by_id(chat_id, current_user.id)
except NotFoundError:
raise HTTPException(status_code=404, detail="Chat not found")
service.add_user_message(chat_id, current_user.id, payload.prompt, payload.context)
ai_context = service.prepare_ai_context(chat, payload.prompt, payload.context)
llm_messages = service.build_llm_messages(ai_context)
try:
provider = service.get_llm_provider(current_user.id)
except ValueError as e:
raise HTTPException(status_code=500, detail=str(e))
return StreamingResponse(
service.stream_response(chat_id, llm_messages, provider),
media_type="text/event-stream",
headers={"x-vercel-ai-ui-message-stream": "v1"},
)
@router.post("/create", response_model=ChatRead, status_code=status.HTTP_201_CREATED)
def create_chat(
payload: ChatCreate,
db: Session = Depends(get_db),
current_user: Profile = Depends(get_current_user),
):
service = create_chat_service(db)
return service.create(
title=payload.title,
description=payload.description,
investigation_id=payload.investigation_id,
owner_id=current_user.id,
)
@router.get("/{chat_id}", response_model=ChatRead)
def get_chat_by_id(
chat_id: UUID,
db: Session = Depends(get_db),
current_user: Profile = Depends(get_current_user),
):
service = create_chat_service(db)
try:
return service.get_by_id(chat_id, current_user.id)
except NotFoundError:
raise HTTPException(status_code=404, detail="Chat not found")
@router.delete("/{chat_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_chat(
chat_id: UUID,
db: Session = Depends(get_db),
current_user: Profile = Depends(get_current_user),
):
service = create_chat_service(db)
try:
service.delete(chat_id, current_user.id)
return None
except NotFoundError:
raise HTTPException(status_code=404, detail="Chat not found")