const express = require('express');
const path = require('path');
const LoginAliyun = require('./loginAliyun');
const fetch = require('node-fetch');
const fs = require('fs');
const http = require('http');
const https = require('https');
const privateKey = fs.readFileSync('./sslcert/example.com.key', 'utf8');
const certificate = fs.readFileSync('./sslcert/example.com.crt', 'utf8');

const credentials = { key: privateKey, cert: certificate };

const app = express();

// Have Node serve the files for our built React app
app.use(express.static(path.resolve(__dirname, './client/dist')));

app.get("/getSigninToken", async (req, res) => {

  const regionId = 'cn-shanghai';
  const ramAccessKeyId = 'your ram access key id';
  const ramAccessKeySecret = 'your ram access key secret';
  const roleArn = 'role arn';

  const loginResult = await LoginAliyun.main(ramAccessKeyId, ramAccessKeySecret, regionId, roleArn);
  const credentials = loginResult?.body?.credentials;

  if (!credentials) {
    res.json({ message: 'error' });
    return;
  }

  // const { arn, assumedRoleUser } = loginResult?.body?.assumedRoleUser || {};
  const { accessKeyId, accessKeySecret, securityToken, expiration } = credentials || {};

  // get aliyun signing token
  const signingUrl = 'https://signin.aliyun.com/federation';

  const params = new URLSearchParams();
  params.append('Action', 'GetSigninToken');
  params.append('AccessKeyId', accessKeyId);
  params.append('AccessKeySecret', accessKeySecret);
  params.append('SecurityToken', securityToken);
  params.append('TicketType', 'mini');

  const signingResult = await fetch(signingUrl, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded',
    },
    body: params,
  });

  const result = await signingResult?.json?.();

  res.json({ data: result?.SigninToken || '' });
});

// All other GET requests not handled before will return our React app
app.get('*', (req, res) => {
  res.sendFile(path.resolve(__dirname, './client/dist', 'index.html'));
});

const httpServer = http.createServer(app);
const httpsServer = https.createServer(credentials, app);

httpServer.listen(8080);
httpsServer.listen(8443);

console.log('express running at http://localhost:%d', 8080);

'use strict';
// This file is auto-generated, don't edit it
// 依赖的模块可通过下载工程中的模块依赖文件或右上角的获取 SDK 依赖信息查看
const Sts20150401 = require('@alicloud/sts20150401');
const OpenApi = require('@alicloud/openapi-client');
const Util = require('@alicloud/tea-util');
const Tea = require('@alicloud/tea-typescript');

// https://api.aliyun.com/api/Sts/2015-04-01/AssumeRole?lang=NODEJS
class Client {

  /**
   * 使用AK&SK初始化账号Client
   * @return Client
   * @throws Exception
   */
  static createClient(accessKeyId, accessKeySecret, regionId) {
    // 工程代码泄露可能会导致 AccessKey 泄露，并威胁账号下所有资源的安全性。以下代码示例仅供参考。
    // 建议使用更安全的 STS 方式，更多鉴权访问方式请参见：https://help.aliyun.com/document_detail/378664.html。
    let config = new OpenApi.Config({
      // 必填，请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_ID。
      accessKeyId: process.env['ALIBABA_CLOUD_ACCESS_KEY_ID'] || accessKeyId,
      // 必填，请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_SECRET。
      accessKeySecret: process.env['ALIBABA_CLOUD_ACCESS_KEY_SECRET'] || accessKeySecret,
    });
    // Endpoint 请参考 https://api.aliyun.com/product/Sts
    config.endpoint = `sts.${regionId}.aliyuncs.com`;
    return new Sts20150401.default(config);
  }

  static async main(accessKeyId, accessKeySecret, regionId, roleArn, roleSessionName, durationSeconds) {
    let result;
    let client = Client.createClient(accessKeyId, accessKeySecret, regionId);
    let assumeRoleRequest = new Sts20150401.AssumeRoleRequest({
      roleArn: roleArn,
      roleSessionName: roleSessionName || 'ram',
      durationSeconds: durationSeconds || 3600, // 有效期，单位为秒
    });
    let runtime = new Util.RuntimeOptions({});
    try {
      // 复制代码运行请自行打印 API 的返回值
      result = await client.assumeRoleWithOptions(assumeRoleRequest, runtime);
    } catch (error) {
      // 此处仅做打印展示，请谨慎对待异常处理，在工程项目中切勿直接忽略异常。
      // 错误 message
      console.log(error.message);
      // 诊断地址
      console.log(error.data["Recommend"]);
      Util.default.assertAsString(error.message);
    }
    return result;
  }

}

module.exports = Client;