<?php
/**
 * sysPass
 *
 * @author    nuxsmin
 * @link      http://syspass.org
 * @copyright 2012-2017, Rubén Domínguez nuxsmin@$syspass.org
 *
 * This file is part of sysPass.
 *
 * sysPass 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.
 *
 * sysPass 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 sysPass.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace SP\Mgmt\Users;

defined('APP_ROOT') || die();

use SP\DataModel\UserData;
use SP\Storage\DbWrapper;
use SP\Storage\QueryData;

/**
 * Class UserUtil
 *
 * @package SP
 */
class UserUtil
{
    const USER_LOGIN_EXIST = 1;
    const USER_MAIL_EXIST = 2;

    /**
     * Comprobar si un usuario y email existen.
     *
     * @param UserData $UserData
     * @return bool
     * @throws \SP\Core\Exceptions\QueryException
     * @throws \SP\Core\Exceptions\ConstraintException
     */
    public static function checkUserMail(UserData $UserData)
    {
        $query = /** @lang SQL */
            'SELECT user_id FROM usrData 
            WHERE LOWER(user_login) = LOWER(?) 
            AND LOWER(user_email) = LOWER(?) LIMIT 1';

        $Data = new QueryData();
        $Data->setQuery($query);
        $Data->addParam($UserData->getLogin());
        $Data->addParam($UserData->getEmail());

        DbWrapper::getQuery($Data);

        return $Data->getQueryNumRows() === 1;
    }

    /**
     * Obtener el email de un usuario.
     *
     * @param int $userId con el Id del usuario
     * @return string con el email del usuario
     */
    public static function getUserEmail($userId)
    {
        $query = /** @lang SQL */
            'SELECT user_email FROM usrData WHERE user_id = ? AND user_email IS NOT NULL LIMIT 1';

        $Data = new QueryData();
        $Data->setQuery($query);
        $Data->addParam($userId);

        $queryRes = DbWrapper::getResults($Data);

        if ($queryRes === false) {
            return false;
        }

        return $queryRes->user_email;
    }

    /**
     * Actualiza el último inicio de sesión del usuario en la BBDD.
     *
     * @param $userId int El id del usuario
     * @return bool
     * @throws \SP\Core\Exceptions\QueryException
     * @throws \SP\Core\Exceptions\ConstraintException
     */
    public static function setUserLastLogin($userId)
    {
        $query = /** @lang SQL */
            'UPDATE User SET lastLogin = NOW(), loginCount = loginCount + 1 WHERE id = ? LIMIT 1';

        $Data = new QueryData();
        $Data->setQuery($query);
        $Data->addParam($userId);

        return DbWrapper::getQuery($Data);
    }


    /**
     * Obtener el login de usuario a partir del Id.
     *
     * @param int $id con el id del usuario
     * @return string con el login del usuario
     */
    public static function getUserLoginById($id)
    {
        $query = /** @lang SQL */
            'SELECT user_login FROM usrData WHERE user_id = ? LIMIT 1';

        $Data = new QueryData();
        $Data->setQuery($query);
        $Data->addParam($id);

        $queryRes = DbWrapper::getResults($Data);

        if ($queryRes === false) {
            return false;
        }

        return $queryRes->user_login;
    }

    /**
     * Obtener el id y login de los usuarios disponibles
     *
     * @return UserData[]
     */
    public static function getUsersLogin()
    {
        $query = /** @lang SQL */
            'SELECT user_id, user_login, user_name FROM usrData ORDER BY user_login';

        $Data = new QueryData();
        $Data->setQuery($query);

        return DbWrapper::getResultsArray($Data);
    }

    /**
     * Obtener el email de los usuarios de un grupo
     *
     * @param $groupId
     * @return array
     */
    public static function getUserGroupEmail($groupId)
    {
        $query = /** @lang SQL */
            'SELECT user_id, user_login, user_name, user_email 
            FROM usrData 
            LEFT JOIN UserToUserGroup ON usertogroup_userId = user_id
            WHERE user_email IS NOT NULL 
            AND user_groupId = ? OR usertogroup_groupId = ?
            AND user_isDisabled = 0
            ORDER BY user_login';

        $Data = new QueryData();
        $Data->setQuery($query);
        $Data->addParam($groupId);
        $Data->addParam($groupId);

        return DbWrapper::getResultsArray($Data);
    }

    /**
     * Obtener el email de los usuarios
     *
     * @return array
     */
    public static function getUsersEmail()
    {
        $query = /** @lang SQL */
            'SELECT user_id, user_login, user_name, user_email 
            FROM usrData 
            WHERE user_email IS NOT NULL AND user_isDisabled = 0
            ORDER BY user_login';

        $Data = new QueryData();
        $Data->setQuery($query);

        return DbWrapper::getResultsArray($Data);
    }
}