var express = require('express');
var router = express.Router();
const fs = require('fs');

let DNSArray = require('../DNSArray.json')
const otherURLs = require('../otherURLs.json')

const { makeRequest } = require('../lib/makeRequest')


function splitToArray(DNS) {
  DNS = DNS.split(',')
  return DNS
}

async function getStreamsNew() {
  let requestData
  let jointArray = []
  for (let index = 0; index < DNSArray.length; index++) {
    const url = DNSArray[index];
    requestData = await makeRequest(url)
    let DNSList = requestData.body
    if (typeof DNSList === 'string' || DNSList instanceof String) {
      try {
        DNSList = JSON.parse(DNSList)
      } catch (error) {
        jointArray.unshift(...otherURLs.using)
        jointArray = [...new Set(jointArray)]
        return jointArray
      }
    }
    try {
      DNSList = splitToArray(DNSList.su)  
    } catch (error) {
      DNSList = splitToArray(DNSList.fu)
    }
    
    DNSList.forEach(url => {
      jointArray.push(url)
    });
  }
  jointArray.unshift(...otherURLs.using)
  jointArray = [...new Set(jointArray)]
  return jointArray
}
/* GET users listing. */
router.get('/', async function (req, res, next) {
  let fullStreamArray = await main()
  res.send(fullStreamArray)
});

module.exports = {
  router, getStreamsNew
}