import json

from fastapi import APIRouter, Depends
from sqlalchemy.orm import Session

from app.api import Response, pwd_context, get_current_user
from app.config.config import settings
from app.models.base_model import get_db
from app.models.token_model import upsert_token, get_token
from app.models.user import UserCreate, LoginData
from app.models.user_model import UserModel
from app.service.auth import authenticate_user, create_access_token
from app.service.bisheng import BishengService
from app.service.ragflow import RagflowService

router = APIRouter()


@router.post("/register", response_model=Response)
async def register(user: UserCreate, db=Depends(get_db)):
    db_user = db.query(UserModel).filter(UserModel.username == user.username).first()
    if db_user:
        return Response(code=200, msg="Username already registered")

    bisheng_service = BishengService(settings.sgb_base_url)
    ragflow_service = RagflowService(settings.fwr_base_url)

    # 注册到毕昇
    try:
        bisheng_info = await bisheng_service.register(user.username, user.password)
    except Exception as e:
        return Response(code=500, msg=f"Failed to register with Bisheng: {str(e)}")

    # 注册到ragflow
    try:
        ragflow_info = await ragflow_service.register(user.username, user.password)
    except Exception as e:
        return Response(code=500, msg=f"Failed to register with Ragflow: {str(e)}")

    # 存储用户信息
    hashed_password = pwd_context.hash(user.password)
    db_user = UserModel(username=user.username, hashed_password=hashed_password, email=ragflow_info.get("email",  f"{user.username}@example.com"),ragflow_id=ragflow_info.get("id"),bisheng_id=bisheng_info.get("user_id"))
    db_user.password = db_user.encrypted_password(user.password)
    db.add(db_user)
    db.commit()
    db.refresh(db_user)
    return Response(code=200, msg="User registered successfully",data={"username": db_user.username})


@router.post("/login", response_model=Response)
async def login(login_data: LoginData, db: Session = Depends(get_db)):
    user = authenticate_user(db, login_data.username, login_data.password)
    if not user:
        return Response(code=400, msg="Incorrect username or password")

    bisheng_service = BishengService(settings.sgb_base_url)
    ragflow_service = RagflowService(settings.fwr_base_url)

    # 登录到毕昇
    try:
        bisheng_token = await bisheng_service.login(login_data.username, login_data.password)
    except Exception as e:
        return Response(code=500, msg=f"Failed to login with Bisheng: {str(e)}")

    # 登录到ragflow
    try:
        ragflow_token = await ragflow_service.login(login_data.username, login_data.password)
    except Exception as e:
        return Response(code=500, msg=f"Failed to login with Ragflow: {str(e)}")

    # 创建本地token
    access_token = create_access_token(data={"sub": user.username, "user_id": user.id})

    upsert_token(db, user.id, access_token, bisheng_token, ragflow_token)

    return Response(code=200, msg="Login successful", data={
        "access_token": access_token,
        "token_type": "bearer",
        "username": user.username,
        "nickname": "",
        "user": user.to_login_json()
    })


@router.get("/token", response_model=Response)
async def token_api(db: Session = Depends(get_db), current_user: UserModel = Depends(get_current_user)):
    # 查询现有记录
    token = get_token(db, current_user.id)
    if token is None:
        return Response(code=400, msg="token not found")
    return Response(code=200, msg="success", data={
        "ragflow_token": token.ragflow_token,
    })