from functools import wraps
from json import load
from os import environ

from flask import redirect, render_template, session, url_for

from .ldap import get_user

with open(environ["APP_CONFIG"]) as f:
    APP_CONFIG = load(f)


def template(ldap, name, **kwargs):
    user = None
    is_admin = False

    if ldap:
        user = get_user(ldap, session["username"])

        ldap.search(
            APP_CONFIG["ldap"]["user_base"],
            APP_CONFIG["template"]["group_admin"].format(user["uid"]),
            attributes=["uid"],
        )
        if len(ldap.entries) == 1:
            is_admin = True

    return render_template(
        name,
        APP_CONFIG=APP_CONFIG,
        CURRENT_USER=user,
        USER_IS_ADMIN=is_admin,
        **kwargs,
    )


class UserNotFoundException(Exception):
    pass