from typing import Any, List

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

from app import schemas
from app.api.deps import get_current_active_superuser, get_current_active_user, get_db
from app.services import user_service

router = APIRouter()

@router.get("/", response_model=List[schemas.User])
def read_users(
    db: Session = Depends(get_db),
    skip: int = 0,
    limit: int = 100,
    current_user: schemas.User = Depends(get_current_active_superuser),
) -> Any:
    """
    Retrieve users.
    """
    users = user_service.get_multi(db, skip=skip, limit=limit)
    return users

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

@router.patch("/me", response_model=schemas.User)
def update_user_me(
    *,
    db: Session = Depends(get_db),
    full_name: str = Body(None),
    email: str = Body(None),
    password: str = Body(None),
    current_user: schemas.User = Depends(get_current_active_user),
) -> Any:
    """
    Update own user.
    """
    current_user_data = jsonable_encoder(current_user)
    user_in = schemas.UserUpdate(**current_user_data)
    if full_name is not None:
        user_in.full_name = full_name
    if email is not None:
        user_in.email = email
    if password is not None:
        user_in.password = password
    user = user_service.update(db, db_obj=current_user, obj_in=user_in)
    return user

@router.get("/{user_id}", response_model=schemas.User)
def read_user_by_id(
    user_id: int,
    current_user: schemas.User = Depends(get_current_active_user),
    db: Session = Depends(get_db),
) -> Any:
    """
    Get a specific user by id.
    """
    user = user_service.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"
        )
    return user