from typing import Any, List

from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session

from app.db.session import get_db
from app.schemas.user import UserCreate, User as UserSchema, UserUpdate
from app.schemas.response import DataResponse
from app.services.user import (
    create_user,
    get_user,
    get_user_by_email,
    get_users,
    update_user,
    delete_user,
)

router = APIRouter()


@router.post(
    "/", response_model=DataResponse[UserSchema], status_code=status.HTTP_201_CREATED
)
def create_new_user(
    *,
    user_in: UserCreate,
    db: Session = Depends(get_db),
) -> Any:
    """
    Create new user.
    """
    user = get_user_by_email(db, email=user_in.email)
    if user:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="The user with this email already exists.",
        )
    user = create_user(db, obj_in=user_in)
    return DataResponse(data=user, message="User created successfully")


@router.get("/", response_model=DataResponse[List[UserSchema]])
def read_users(
    skip: int = 0,
    limit: int = 100,
    db: Session = Depends(get_db),
) -> Any:
    """
    Retrieve users.
    """
    users = get_users(db, skip=skip, limit=limit)
    return DataResponse(data=users, message="Users retrieved successfully")


@router.get("/{user_id}", response_model=DataResponse[UserSchema])
def read_user(
    user_id: int,
    db: Session = Depends(get_db),
) -> Any:
    """
    Get user by ID.
    """
    user = get_user(db, id=user_id)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="User not found",
        )
    return DataResponse(data=user, message="User retrieved successfully")


@router.put("/{user_id}", response_model=DataResponse[UserSchema])
def update_user_info(
    *,
    user_id: int,
    user_in: UserUpdate,
    db: Session = Depends(get_db),
) -> Any:
    """
    Update user.
    """
    user = get_user(db, id=user_id)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="User not found",
        )
    user = update_user(db, db_obj=user, obj_in=user_in)
    return DataResponse(data=user, message="User updated successfully")


@router.delete(
    "/{user_id}", status_code=status.HTTP_204_NO_CONTENT, response_model=None
)
def delete_user_by_id(
    user_id: int,
    db: Session = Depends(get_db),
) -> None:
    """
    Delete user.
    """
    user = get_user(db, id=user_id)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="User not found",
        )
    delete_user(db, id=user_id)
    return None