from fastapi import Depends, FastAPI, HTTPException
from sqlalchemy.orm import Session

# from . import crud, models, schemas
import crud, models, schemas
from database import SessionLocal, engine
# from .database import SessionLocal, engine

models.Base.metadata.create_all(bind=engine)

app = FastAPI()


# Dependency
def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()


# 默认首页
@app.get("/")
async def root():
    return {"message": "Hello World"}


# 创建用户
@app.post("/users/")
# schemas.UserCreate决定了swagger文档
def create_user(user: schemas.UserCreate, db: Session = Depends(get_db)):
    db_user = crud.create_user(db, user)
    if db_user:
        raise HTTPException(status_code=400,
                            detail="openId already registered")
    return crud.create_user(db=db, user=user)


# 分页查询-用户
@app.get("/users/")
def read_users(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
    users = crud.get_users(db, skip=skip, limit=limit)
    return users


# 根据openId查询用户
@app.get("/users/{openId}")
def read_user(openId, db: Session = Depends(get_db)):
    db_user = crud.get_user_by_openId(db, openId=openId)
    if db_user is None:
        raise HTTPException(status_code=404, detail="User not found")
    return db_user