'use strict';

const crypto = require('crypto');
const request = require('request');

// 这里填写AK和请求
const ak_id = 'LTAI4FwEgBELQHDhfEnQPb6F';
const ak_secret = 'dSiZ0O0XS9m6xKrfYeB9B5G4DnWkYg';


// eslint-disable-next-line no-unused-vars
const md5 = function(buffer) {
  let hash;
  // eslint-disable-next-line prefer-const
  hash = crypto.createHash('md5');
  hash.update(buffer);
  return hash.digest('base64');
};

// eslint-disable-next-line no-unused-vars
const sha1 = function(stringToSign, secret) {
  // eslint-disable-next-line no-unused-vars
  let signature;
  // eslint-disable-next-line no-return-assign
  return signature = crypto.createHmac('sha1', secret).update(stringToSign).digest()
    .toString('base64');
};

function callback(error, response, body) {
  const { ctx } = this;
  return new Promise((resolve, reject) => {
    if (error) {
    // console.log('error', error);
      ctx.logger.error('error', error);
      reject(error);
    }
    // console.log('step4-response body:', response.statusCode, body);
    ctx.logger.error('step4-response body:', response.statusCode, body);
    resolve(body);

  });
}

// function httpRequest(option) {
//   return new Promise((resolve, reject) => {
//     request(option, function(error, response, body) {
//       if (!error && response.statusCode == 200) {
//         resolve(body);
//       } else {
//         reject(error);
//       }
//     });
//   });
// }

module.exports = {
  ak_id,
  ak_secret,
  md5,
  sha1,
  // httpRequest,
  callback,
};