<?php
namespace common\services;
use Yii;
use common\models\xhWifi;
use common\components\dict;
use common\components\wxUtil;
use common\components\util;

class xhWifiService {
	/**
	 * 根据shopId取门店设置的所有wifi
	 */
	public static function getListByShopId($shopId)
	{
		$cacheKey				= dict::getCacheKey('xhWifiList').$shopId;
		$exists					= Yii::$app->redis->executeCommand('EXISTS', [$cacheKey]);
		if(empty($exists)){
			$wifi				= self::getAllByCondition(['shopId'=>$shopId]);
			$string				= !empty($wifi) ? json_encode($wifi) : '';
			Yii::$app->redis->executeCommand('SET', [$cacheKey,$string]);
		}else{
			$cacheData			= Yii::$app->redis->executeCommand('GET', [$cacheKey]);
			$wifi				= !empty($cacheData) ? json_decode($cacheData,true) : [];
		}
		return $wifi;
	}
	
	public static function getAllByCondition($condition)
	{
		return xhWifi::getAllByCondition($condition);
	}

    /**
     * Wifi二维码图片是否已下载
     * @param $shopId
     * @return bool true：存在; false：不存在
     */
    public static function existQrImage($shopId){
        $webRootDir = dirname(Yii::$app->basePath);
        $saveQrCodeDir = $webRootDir . '/images/qrcode/weixinQrcode/';
        $qrImage = $saveQrCodeDir . $shopId . '.jpg';
        return file_exists($qrImage);
    }
}