/**
 * @author songxiwen
 * @date 2020/08/04 10:58
 */

import tencentCloud from 'tencentcloud-sdk-nodejs';
import { RequestType, SMSPromiseResponse, SMSResponse } from './type/sms.type';
import { ServerError } from '../common';

const { Credential, ClientProfile, HttpProfile } = tencentCloud.common;
const models = tencentCloud.sms.v20190711.Models;
const SmsClient = tencentCloud.sms.v20190711.Client;

export class Util {
  static async sendSMS(param: {
    phone: string;
    secretId: string;
    secretKey: string;
    smsSign: string;
    smsTemplateId: string;
    smsSdkAppId: string;
  }): Promise<SMSPromiseResponse> {
    const credit = new Credential(param.secretId, param.secretKey);
    const httpProfile = new HttpProfile();
    httpProfile.endpoint = 'sms.tencentcloudapi.com';
    const clientProfile = new ClientProfile();
    clientProfile.httpProfile = httpProfile;
    const client = new SmsClient(credit, '', clientProfile);
    const request: RequestType = new models.AddSmsTemplateRequest();
    const smsCode = Util.generateRandomNumber(4);
    request.PhoneNumberSet = [`+86${param.phone}`];
    request.TemplateID = param.smsTemplateId;
    request.Sign = param.smsSign;
    request.SmsSdkAppid = param.smsSdkAppId;
    request.Action = 'SendSms';
    request.Version = '2019-07-11';
    request.TemplateParamSet = [smsCode];
    return new Promise(resolve => {
      client.SendSms(request, (error: Error, response: SMSResponse) => {
        if (error) {
          throw ServerError.code.SMSCodeRemoteWrong;
        }
        if (
          response.SendStatusSet &&
          response.SendStatusSet[0] &&
          response.SendStatusSet[0].Code === 'Ok'
        ) {
          resolve({
            message: response.SendStatusSet[0].Message,
            data: {
              smsCode
            }
          });
        } else {
          throw ServerError.code.SMSCodeRemoteWrong;
        }
      });
    });
  }

  static generateRandomNumber(count: number): string {
    const max = count > 10 ? 10 : count;
    return Math.random()
      .toString()
      .substring(2, 2 + max);
  }
}