from fastapi import FastAPI, Depends, HTTPException, status, Query, Path
from sqlalchemy.orm import Session
import crud
import models
import schemas
from database import engine, get_db
from typing import List, Optional
import uvicorn

# Создание таблиц в БД
models.Base.metadata.create_all(bind=engine)

app = FastAPI(title="AutoBro API", description="API для управления базой данных автомобилей")

@app.get("/")
def read_root():
    return {"message": "AutoBro API"}

@app.get("/cars", response_model=schemas.CarsResponse)
def get_cars(
    skip: int = Query(0, description="Количество пропускаемых записей"),
    limit: int = Query(100, description="Максимальное количество записей"),
    db: Session = Depends(get_db)
):
    cars = crud.get_cars(db, skip=skip, limit=limit)
    total = crud.get_cars_count(db)
    return {"cars": cars, "total": total}

@app.get("/cars/{car_id}", response_model=schemas.CarResponse)
def get_car(
    car_id: int = Path(..., description="ID автомобиля", gt=0),
    db: Session = Depends(get_db)
):
    car = crud.get_car(db, car_id=car_id)
    if car is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Автомобиль не найден"
        )
    return {"car": car}

@app.post("/cars", response_model=schemas.CarResponse, status_code=status.HTTP_201_CREATED)
def create_car(
    car: schemas.CarCreate,
    db: Session = Depends(get_db)
):
    db_car = crud.create_car(db=db, car=car)
    return {"car": db_car}

@app.put("/cars/{car_id}", response_model=schemas.CarResponse)
def update_car(
    car_id: int = Path(..., description="ID автомобиля", gt=0),
    car_update: schemas.CarUpdate = ...,
    db: Session = Depends(get_db)
):
    updated_car = crud.update_car(db=db, car_id=car_id, car_update=car_update)
    if updated_car is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Автомобиль не найден"
        )
    return {"car": updated_car}

@app.delete("/cars/{car_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_car(
    car_id: int = Path(..., description="ID автомобиля", gt=0),
    db: Session = Depends(get_db)
):
    success = crud.delete_car(db=db, car_id=car_id)
    if not success:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Автомобиль не найден"
        )
    return None

if __name__ == "__main__":
    uvicorn.run(app, host="0.0.0.0", port=3000)