<?php

namespace BRSystems\Core\Library\cUsersOnline;

use BRSystems\Core\Library\cDb\cDb;

/**
 * cUsersOnline Module
 *
 * @category sysUsers Module
 * @author Mareks Keišs <mareks.keiss@brsystems.lv>
 * @since Version 2.0
 */
class cUsersOnlineModule
{
    private $oDb;
    private $bCmsSide = false;

    /**
     * Class constructor
     */
    public function __construct($bCMSSide = false) {

        $this->oDb = cDb::getInstance(DB_HOST, DB_USR, DB_PWD, DB_PORT, DB_NAME);
        $this->bCmsSide = $bCMSSide;

    }

    /**
     * Function to log user online status
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category cUsersOnline Module
     * @param $userId - user id to log
     * @param $userIp - user ip to log
     * @param $time - user time to log
     * @return bool - true / false
     * @version 1.1
     */
    public function addOnlineMe($userId, $userIp, $sUserAgent, $sMD5Key, $time){

        return $this->oDb->_queryInsert('temp_users_online', array(
            'o_time' => $time,
            'o_ip' => $userIp,
            'o_user_id' => $userId,
            'o_type' => ($this->bCmsSide ? '1' : '0'),
            'o_user_agent' => $sUserAgent,
            'o_user_md5_key' => $sMD5Key,
        ));

    }

    /**
     * Function to get online user count
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category cUsersOnline Module
     * @param $suoTime - user lot timeout
     * @param array $vExclUser2Ip - exclude users with passed ids
     * @return bool - true / false
     * @version 1.1
     */
    public function getOnlineCount($suoTime, $vExclUser2Ip = array()){

        $sWhere = "";
        if(!!$vExclUser2Ip && is_array($vExclUser2Ip)){
            foreach($vExclUser2Ip as $iUserId => $IP){
                if($IP == 'null' || $IP == null)
                    $sWhere .= "AND suo.o_user_id <> {$iUserId} ";
                else
                    $sWhere .= "AND suo.o_ip = '{$IP}' AND suo.o_user_id <> {$iUserId} ";
            }
        }

        $sSql = "
            SELECT
                count(*)
            FROM
                temp_users_online suo
            WHERE
                suo.o_type = '" . ($this->bCmsSide ? '1' : '0') . "'
                AND suo.o_time > (UNIX_TIMESTAMP() - {$suoTime})
                AND (" . (strlen($sWhere) ? substr($sWhere, 4) : "1") . ")
            GROUP BY
                suo.o_user_id, suo.o_ip
        ";

        $this->oDb->query($sSql);
        return $this->oDb->getOne();
    }

    /**
     * Function to get online user count
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category cUsersOnline Module
     * @param $suoTime - user lot timeout
     * @param array $vExclUser2Ip - exclude users with passed ids
     * @return bool - true / false
     * @version 1.1
     */
    public function getOnlineUserData($suoTime, $vExclUser2Ip = array()){

        $sWhere = "";
        if(!!$vExclUser2Ip && is_array($vExclUser2Ip)){
            foreach($vExclUser2Ip as $iUserId => $IP){
                if($IP == 'null' || $IP == null)
                    $sWhere .= "AND suo.o_user_id <> {$iUserId} ";
                else
                    $sWhere .= "AND suo.o_ip = '{$IP}' AND suo.o_user_id <> {$iUserId} ";
            }
        }

        $sUserTable = ($this->bCmsSide ? 'site_users' : 'mod_users');

        $sSql = "
            SELECT
                mu.id,
                " . ($this->bCmsSide ? "CONCAT(mu.user_name,' ',mu.user_surname) ": "mu.user_full_name ") . " as name
            FROM
                temp_users_online suo
                LEFT JOIN {$sUserTable} mu ON
                    mu.id = suo.o_user_id
            WHERE
                suo.o_type = '" . ($this->bCmsSide ? '1' : '0') . "'
                AND suo.o_time > UNIX_TIMESTAMP() - {$suoTime}
                AND (" . (strlen($sWhere) ? substr($sWhere, 4) : "1") . ")
            GROUP BY
                suo.o_user_id, suo.o_ip
        ";

        $this->oDb->query($sSql);
        return $this->oDb->getArray();
    }

    /**
     * Function to get IPs for specific user id
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category cUsersOnline Module
     * @param $suoTime - user lot timeout
     * @param int $iUserId - users id
     * @return bool - true / false
     * @version 1.1
     */
    public function getOnlineUserMd5Keys($suoTime, $iUserId){

        if(!!$iUserId && $suoTime){
            $sSql = "
                SELECT
                    suo.o_ip,
                    suo.o_user_md5_key as md5
                FROM
                    temp_users_online suo
                WHERE
                    suo.o_type = '" . ($this->bCmsSide ? '1' : '0') . "'
                    AND suo.o_time > UNIX_TIMESTAMP() - {$suoTime}
                    AND suo.o_user_id = {$iUserId}
                GROUP BY
                    suo.o_user_id, suo.o_ip
            ";

            $this->oDb->query($sSql);
            return $this->oDb->getArray();
        }

        return false;
    }
}