from flask import abort, current_app
from flask_login import current_user, logout_user
from threading import Thread
from app import db
from app.decorators import content_negotiation
from app.models import Avatar, User
from . import bp


@bp.route('/<hashid:user_id>', methods=['DELETE'])
@content_negotiation(produces='application/json')
def delete_user(user_id):
    def _delete_user(app, user_id):
        with app.app_context():
            user = User.query.get(user_id)
            user.delete()
            db.session.commit()

    user = User.query.get_or_404(user_id)
    if not (user == current_user or current_user.is_administrator()):
        abort(403)
    thread = Thread(
        target=_delete_user,
        args=(current_app._get_current_object(), user.id)
    )
    if user == current_user:
        logout_user()
    thread.start()
    response_data = {
        'message': f'User "{user.username}" marked for deletion'
    }
    return response_data, 202


@bp.route('/<hashid:user_id>/avatar', methods=['DELETE'])
@content_negotiation(produces='application/json')
def delete_user_avatar(user_id):
    def _delete_avatar(app, avatar_id):
        with app.app_context():
            avatar = Avatar.query.get(avatar_id)
            avatar.delete()
            db.session.commit()

    user = User.query.get_or_404(user_id)
    if user.avatar is None:
        abort(404)
    if not (user == current_user or current_user.is_administrator()):
        abort(403)
    thread = Thread(
        target=_delete_avatar,
        args=(current_app._get_current_object(), user.avatar.id)
    )
    thread.start()
    response_data = {
        'message': f'Avatar marked for deletion'
    }
    return response_data, 202