from fastapi import APIRouter, Depends
from fastapi.security import OAuth2PasswordRequestForm
from datetime import timedelta
from fastapi.security import OAuth2PasswordRequestForm
from fastapi import Depends, HTTPException, status
from dependencies import *
from internal.models import Token

router = APIRouter(
    prefix="/users",
    tags=["用户管理"]
)

# 登录获取token


@router.post("/token", response_model=Token)
async def login_for_access_token(
    form_data: OAuth2PasswordRequestForm = Depends(),
) -> Token:
    user = authenticate_user(form_data.username, form_data.password)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )
    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    access_token = create_access_token(
        data={"sub": user.username}, expires_delta=access_token_expires
    )
    return {"access_token": access_token, "token_type": "bearer"}

# 获取用户


@router.get("/me/", response_model=User)
async def read_users_me(current_user: User = Depends(get_current_active_user)):
    return current_user

# 注册新用户


@router.post("/register/")
async def register_user(user: UserInDB, _: User = Depends(get_current_active_user)):
    # 检查用户名是否已经存在
    existing_user = get_user(user.username)
    if existing_user:
        raise HTTPException(
            status_code=400, detail="Username already registered")
    if not user.hashed_password:
        raise HTTPException(status_code=400, detail="password cannot be empty")

    # 创建新用户并保存到数据库
    hashed_password = get_password_hash(user.hashed_password)
    insert_query = "INSERT INTO users (username, email, full_name, hashed_password, disabled) VALUES (%s, %s, %s, %s, %s)"
    user_data = (user.username, user.email, user.full_name,
                 hashed_password, user.disabled)
    execute_query(insert_query, user_data)
    # 返回创建的用户信息
    return {"status": status.HTTP_200_OK, "message": "users create successfully!"}


# @router.get("/me/items/")
# async def read_own_items(current_user: User = Depends(get_current_active_user)):
#     return [{"item_id": "Foo", "owner": current_user.username}]