import logging

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

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


log = logging.getLogger()

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

app = FastAPI()


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


@app.get("/hello/")
def hello():
    return "Hello World!"


@app.post("/users/", response_model=schemas.User)
def create_user(user: schemas.UserCreate, db: Session = Depends(get_db)):
    existing_user = crud.read_user_by_email(db, email=user.email)
    if existing_user:
        raise HTTPException(status_code=400, detail="A user with this email address is already registered.")

    return crud.create_user(db=db, user=user)


@app.get("/users/{id}", response_model=schemas.User)
def read_user(id: int, db: Session = Depends(get_db)):
    user = crud.read_user(db=db, id=id)
    if not user:
        raise HTTPException(status_code=404, detail=f"No user with id '{id}' found.")
    return user


@app.get("/users/", response_model=list[schemas.User])
def read_users(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
    users = crud.read_users(db=db, skip=skip, limit=limit)
    return users


@app.patch("/users/{id}", response_model=schemas.User)
def update_user(id: int, user: schemas.UserUpdate, db: Session = Depends(get_db)):
    current_user = crud.read_user(db=db, id=id)
    if not current_user:
        raise HTTPException(status_code=404, detail=f"No user with id '{id}' found.")
    return crud.update_user(db=db, user=user, id=id)


@app.delete("/users/{id}", response_model=schemas.User)
def delete_user(id: int, db: Session = Depends(get_db)):
    user = crud.read_user(db=db, id=id)
    if not user:
        raise HTTPException(status_code=404, detail=f"No user with id '{id}' found.")
    return crud.delete_user(db=db, id=id)