<?php
namespace common\services;
use Yii;
use common\models\xhWifi;
use common\components\configDict;
use common\components\weixinUtil;
use common\components\util;

class xhWifiService {
	/**
	 * 根据shopId取门店设置的所有wifi
	 */
	public static function getListByShopId($shopId)
	{
		$cacheKey				= configDict::getCacheKey('xhWifiList').$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);
	}

    /**
     * 下载Wifi二维码图片到本地
     * @param $shopId
     * @param $ssid
     * @param $merchant
     * @return array
     */
	public static function DownLoadWifiQrImg($shopId, $ssid, $merchant){
        $re = (new weixinUtil($merchant))->getWifiQrCode($shopId, $ssid, 0);
        if($re['errcode'] == 0){
            $imgUrl = $re['data']['qrcode_url'];
        }else{
            return $re['errmsg'];
        }

        $webRootDir = dirname(Yii::$app->basePath);
        $saveQrCodeDir = $webRootDir . '/images/qrcode/weixinQrcode';

        $status = util::downLoadImage($imgUrl, $saveQrCodeDir, $shopId.'.jpg');
        return $status;
    }

    /**
     * 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);
    }
}