<?php
/**
 * 短信服务
 * @author wesmiler
 */

namespace app\weixin\service;

use AlibabaCloud\Client\AlibabaCloud;
use GuzzleHttp\Exception\ClientException;
use GuzzleHttp\Exception\SeekException;

class Sms
{
    /**
     * 发生短信验证码
     * @param $mobile 手机号码
     * @param $params 短信参数：tpName-模板名称标识，code-短信验证码，expire-有效期/s
     * @param string $scene 场景标识：默认code
     * @return array|bool
     */
    public static function sendCode($mobile, $params, $scene = 'code')
    {
        if(empty($mobile)){
            return 2012;
        }

        // 参数配置
        $smsConfig = cmf_get_option('sms_config');
        $tpName = isset($params['tpName']) ? $params['tpName'] : '';  // 短信模板名称
        $code = isset($params['code']) ? trim($params['code']) : '';  // 验证码
        $codeLength = isset($smsConfig['code_length']) ? intval($smsConfig['code_length']) : 0;
        $codeLength = $codeLength>=4? $codeLength-1 : 5;
        $numMin = pow(10,$codeLength);
        $numMax = pow(10,$codeLength+1)-1;
        $code = $code? $code : rand($numMin,$numMax);
        
        $expire = isset($params['expire']) ? intval($params['expire']) : 300;  // 有效期
        $openSms = isset($smsConfig['status']) ? $smsConfig['status'] : true;  // 短信功能是否开启
        $signName = isset($smsConfig['sign_name']) ? $smsConfig['sign_name'] : '';
        $accessKey = isset($smsConfig['access_key']) ? $smsConfig['access_key'] : '';
        $accessSecret = isset($smsConfig['access_secret']) ? $smsConfig['access_secret'] : '';
        $regionId = isset($smsConfig['sms_region']) ? $smsConfig['sms_region'] : 'cn-hangzhou';
        $templateId = isset($smsConfig[$tpName . '_template_id']) ? $smsConfig[$tpName . '_template_id'] : '';
        $jsonData = json_encode(['code' => $code], 256);

        if(!$openSms){
            PRedis::set('sms:error_'.$scene.':'.$mobile, ['config'=> $smsConfig,'params'=> $params], 600);
            return 2018;
        }
        
        if(empty($accessSecret) || empty($accessSecret) || empty($templateId)){
            PRedis::set('sms:error_'.$scene.':'.$mobile, ['config'=> $smsConfig,'params'=> $params], 600);
            return 2014;
        }

        if(empty($signName) || empty($tpName) || empty($code)){
            PRedis::set('sms:error_'.$scene.':'.$mobile, ['config'=> $smsConfig,'params'=> $params], 600);
            return 2015;
        }

        if(PRedis::get('sms:lock_'.$scene.':'.$mobile)){
            return 2021;
        }

        // 初始化参数
        AlibabaCloud::accessKeyClient($accessKey, $accessSecret)
            ->regionId($regionId ? $regionId : 'cn-hangzhou')
            ->asDefaultClient();
        // 处理调用
        try {
            $params = [
                'RegionId' => $regionId? $regionId : 'cn-hangzhou',
                'PhoneNumbers' => $mobile,
                'SignName' => $signName,
                'TemplateCode' => $templateId,
                'TemplateParam' => $jsonData,
            ];
            $result = AlibabaCloud::rpc()
                ->product('Dysmsapi')
                ->version('2017-05-25')
                ->action('SendSms')
                ->method('POST')
                ->options(['query' => $params])
                ->request();
            $result = $result? $result->toArray() : [];
            PRedis::set('sms:result_'.$scene.':'.$mobile, $result, 600);
            if ($result && $result['Code'] == "OK"){
                // 写缓存
                $codeData = ['code'=> $code, 'params'=> $params, 'date'=> date('Y-m-d H:i:s')];
                PRedis::set('sms:scene_'.$scene.':'.$mobile, $codeData, $expire);
                PRedis::set('sms:lock_'.$scene.':'.$mobile, $code, 10);
                return $codeData;
            }else{
               return $result['Code']? $result['Code'] : 2017;
            }

        } catch (ClientException $exception) {
            PRedis::set('sms:error_'.$scene.':'.$mobile, $exception, 600);
            return 2017;
        } catch (SeekException $exception) {
            PRedis::set('sms:error_'.$scene.':'.$mobile, $exception, 600);
            return 2017;
        }
    }

    /**
     * 验证短信验证码
     * @param $mobile 手机号码
     * @param $code 当前验证码
     * @param string $scene 场景：code-默认
     * @return bool|int
     */
    public static function checkCode($mobile, $code, $scene='code'){
         $codeData = PRedis::get('sms:scene_'.$scene.':'.$mobile);
         $sendCode = isset($codeData['code'])? $codeData['code'] : '';
         if(empty($codeData)){
            return 2019;
         }

         if($sendCode == $code){
             PRedis::del('sms:scene_'.$scene.':'.$mobile);
             return true;
         }

        return 2020;
    }
}