<?php

namespace bizHd\stat\classes;

use Yii;
use bizHd\base\classes\BaseClass;

/**
 * 零售端 -- 浏览记录与浏览统计
 * Class StatVisitClass
 * @package bizHd\stat\classes
 */
class StatVisitClass extends BaseClass
{
    //public static $baseFile = '\bizHd\stat\models\StatVisit';

    //零售记录访客
    public static function addHdCustomVisit($shopId, $userId, $date = null)
    {
        $date = isset($date) == false ? date("Ymd") : $date;
        $cacheKey = 'hd_visit:' . $shopId . '_' . $date;
        $exists = Yii::$app->redis->executeCommand('SISMEMBER', [$cacheKey, $userId]);
        if (empty($exists)) {
            Yii::$app->redis->executeCommand('SADD', [$cacheKey, $userId]);
        }

		// 只缓存1天：若未设置过期时间则设置为 86400 秒
		$ttl = (int)Yii::$app->redis->executeCommand('TTL', [$cacheKey]);
		if ($ttl === -1) {
			Yii::$app->redis->executeCommand('EXPIRE', [$cacheKey, 86400]);
		}
    }

    //保存访客数
    public static function saveVisit($shop, $visitNum, $date = null)
    {

    }

    /**
     * 获取访客数
     * @param $shopId
     * @param null $date
     * @return int
     */
    public static function getVisitNum($shopId, $date = null)
    {
        $date = isset($date) == false ? date("Ymd") : $date;
        $cacheKey = 'hd_visit:' . $shopId . '_' . $date;
        $num = Yii::$app->redis->executeCommand('SCARD', [$cacheKey]);
        return intval($num);
    }

    //获取访客ID
    public static function getVisitCustomIds($shopId, $date = null)
    {
        $date = isset($date) ? $date :  date("Ymd");
        $cacheKey = 'hd_visit:' . $shopId . '_' . $date;
        $userIds = Yii::$app->redis->executeCommand('SMEMBERS', [$cacheKey]);
        return $userIds;
    }

}