<?php

/**
 * Sessions set
 *
 * @author Tigran Tokmajyan
 * @package PHPRedis
 * @subpackage ZendFrameworkIntegration
 * @version @package_version@
 */
class Toktik_Session_Set
{
    /**
     * Save handler instance
     *
     * @var Rediska_Zend_Session_SaveHandler_Redis
     */
    protected static $_saveHandler;

    protected $options = array();
    protected $keyName;

    /**
     * Session set constructor
     */
    public function __construct()
    {
        if (!self::$_saveHandler) {
            throw new Rediska_Key_Exception('You must initialize Rediska_Zend_Session_SaveHandler_Redis before');
        }

        $this->keyName = self::getSaveHandler()->getOption('keyPrefix') . 'sessions';
    }

    /**
     * Get Redis session save handler
     *
     * @return Toktik_Session_SaveHandler_Phpredis
     */
    public static function getSaveHandler()
    {
        return self::$_saveHandler;
    }

    /**
     * Set Redis session save handler
     *
     * @param Toktik_Session_SaveHandler_Phpredis $saveHandler
     * @return boolean
     */
    public static function setSaveHandler(Toktik_Session_SaveHandler_Phpredis $saveHandler)
    {
        self::$_saveHandler = $saveHandler;

        return true;
    }

    public function add($id) {
        return $this->getSaveHandler()->getRedis()->sAdd($this->keyName, $id);
    }

    public function remove($id) {
        return $this->getSaveHandler()->getRedis()->sRemove($this->keyName, $id);
    }

    public function remByScore($start, $end) {
        return $this->getSaveHandler()->getRedis()->zRemRangeByScore(
            $this->keyName, $start, $end
        );
    }

    public function delete() {
        return $this->getSaveHandler()->getRedis()->delete($this->keyName);
    }
}