from typing import Any, List

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

from app import crud, schemas
from app.core.security import get_current_active_user
from app.db.session import get_db
from app.models.user import User

router = APIRouter()


@router.get("/me", response_model=schemas.User)
async def read_users_me(
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Get current user.
    """
    return current_user


@router.put("/me", response_model=schemas.User)
async def update_user_me(
    *,
    db: Session = Depends(get_db),
    user_in: schemas.UserUpdate,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Update own user.
    """
    user = crud.user.update(db, db_obj=current_user, obj_in=user_in)
    return user


@router.get("/{user_id}", response_model=schemas.User)
async def read_user_by_id(
    user_id: int,
    current_user: User = Depends(get_current_active_user),
    db: Session = Depends(get_db),
) -> Any:
    """
    Get a specific user by id.
    """
    user = crud.user.get(db, id=user_id)
    if user == current_user:
        return user
    if not current_user.is_superuser:
        raise HTTPException(
            status_code=status.HTTP_403_FORBIDDEN,
            detail="The user doesn't have enough privileges",
        )
    if not user:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="User not found",
        )
    return user


@router.get("/", response_model=List[schemas.User])
async def read_users(
    db: Session = Depends(get_db),
    skip: int = 0,
    limit: int = 100,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Retrieve users. Only superusers can access this endpoint.
    """
    if not current_user.is_superuser:
        raise HTTPException(
            status_code=status.HTTP_403_FORBIDDEN,
            detail="The user doesn't have enough privileges",
        )
    users = crud.user.get_multi(db, skip=skip, limit=limit)
    return users