from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session
from core.database import get_db
from models.user import User
from schemas.user import UserLogin, UserResponse
from helpers.auth_helpers import authenticate_user
from helpers.token_helpers import create_access_token

router = APIRouter()

@router.post("/login", status_code=200, response_model=UserResponse)
async def login(
    login_data: UserLogin,
    db: Session = Depends(get_db)
):
    user = authenticate_user(db, login_data.userid, login_data.password)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )
    
    access_token = create_access_token(data={"sub": user.userid})
    
    return {
        "access_token": access_token,
        "token_type": "bearer",
        "userid": user.userid
    }