<?php
/**
 * LegacyAuth.php
 *
 * -Description-
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    LibreNMS
 * @link       http://librenms.org
 * @copyright  2018 Tony Murray
 * @author     Tony Murray <murraytony@gmail.com>
 */

namespace App\Extensions;

use App\Models\User;
use Illuminate\Contracts\Auth\Authenticatable;
use Illuminate\Contracts\Auth\UserProvider;
use LibreNMS\Authentication\Auth as LegacyAuth;
use LibreNMS\Exceptions\AuthenticationException;

class LegacyUserProvider implements UserProvider
{

    /**
     * Retrieve a user by their unique identifier.
     *
     * @param  mixed $identifier
     * @return \Illuminate\Contracts\Auth\Authenticatable|null
     */
    public function retrieveById($identifier)
    {
        $user_array = LegacyAuth::get()->getUser($identifier);
        if (empty($user_array)) {
            return null;
        }

        $user = new User($user_array);
        $user->user_id = $user_array['user_id'];

        return $user;
    }

    /**
     * Retrieve a user by their unique identifier and "remember me" token.
     *
     * @param  mixed $identifier
     * @param  string $token
     * @return \Illuminate\Contracts\Auth\Authenticatable|null
     */
    public function retrieveByToken($identifier, $token)
    {
        // TODO: Implement retrieveByToken() method.
    }

    /**
     * Update the "remember me" token for the given user in storage.
     *
     * @param  \Illuminate\Contracts\Auth\Authenticatable $user
     * @param  string $token
     * @return void
     */
    public function updateRememberToken(Authenticatable $user, $token)
    {
        // TODO: Implement updateRememberToken() method.
    }

    /**
     * Retrieve a user by the given credentials.
     *
     * @param  array $credentials
     * @return \Illuminate\Contracts\Auth\Authenticatable|null
     */
    public function retrieveByCredentials(array $credentials)
    {
        $username = $credentials['username'];
        $user_id = LegacyAuth::get()->getUserid($username);

        return $this->retrieveById($user_id);
    }

    /**
     * Validate a user against the given credentials.
     *
     * @param  \Illuminate\Contracts\Auth\Authenticatable $user
     * @param  array $credentials
     * @return bool
     */
    public function validateCredentials(Authenticatable $user, array $credentials)
    {
        try {
            return LegacyAuth::get()->authenticate($credentials['username'], $credentials['password']);
        } catch (AuthenticationException $e) {
            \Toastr::error($e->getMessage());
        }

        return null;
    }
}