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from typing import List
from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session

from app.engine.postgresdb import get_db
from app.schema.index import UserCreate, User as UserSchema
from app.model.user import User as UserModel


user_router = r = APIRouter(prefix="/api/v1/users", tags=["users"])


@r.post(
    "/",
    response_model=UserSchema,
    responses={
        200: {"description": "New user created"},
        400: {"description": "Bad request"},
        409: {"description": "Conflict"},
        500: {"description": "Internal server error"},
    },
)
async def create_user(user: UserCreate, db: Session = Depends(get_db)):
    try:
        db_user = (
            db.query(UserModel).filter(UserModel.email == user.email).sort_by(UserModel.updated_at, desc=True).first()
        )
        if db_user and not db_user.is_deleted:
            raise HTTPException(status_code=409, detail="User already exists")

        db_user = UserModel(**user.dict())
        db.add(db_user)
        db.commit()
        db.refresh(db_user)
        return db_user
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


@r.get(
    "/{user_id}",
    response_model=UserSchema,
    responses={
        200: {"description": "User found"},
        404: {"description": "User not found"},
        500: {"description": "Internal server error"},
    },
)
async def get_user(user_id: int, db: Session = Depends(get_db)):
    user = db.query(UserModel).get(user_id)
    if not user:
        raise HTTPException(status_code=404, detail="User not found")
    return user


@r.put(
    "/{user_id}",
    response_model=UserSchema,
    responses={
        200: {"description": "User updated"},
        404: {"description": "User not found"},
        500: {"description": "Internal server error"},
    },
)
async def update_user(user_id: int, user_payload: UserCreate, db: Session = Depends(get_db)):
    user = db.query(UserModel).get(user_id)
    if not user:
        raise HTTPException(status_code=404, detail="User not found")
    user.name = user_payload.name
    user.email = user_payload.email
    db.commit()
    db.refresh(user)
    return user


@r.delete(
    "/{user_id}",
    response_model=UserSchema,
    responses={
        200: {"description": "User deleted"},
        404: {"description": "User not found"},
        500: {"description": "Internal server error"},
    },
)
async def delete_user(user_id: int, db: Session = Depends(get_db)):
    user = db.query(UserModel).get(user_id)
    if not user:
        raise HTTPException(status_code=404, detail="User not found")
    user.is_deleted = True
    db.commit()
    db.refresh(user)
    return user