const http = require('https');
const fetch = require('node-fetch');

const tracking = require('./tracking.js');

const track_url = 'https://t.17track.net/restapi/track';

var cnvrt = function(v) {
    var str = '';
    for (var i = 0; i < v.length; i++) {
       str += v.charCodeAt(i).toString(16);
    }
    return str;
};
function acc(a, b) {
    var c = 1315423911 ^ b << 16;
    for (var i = a.length - 1; i >= 0; i--) {
        c ^= (c << 5) + a.charCodeAt(i) + (c >> 2);
    }
    return Math.abs(c & 2147483647);
};
function atb(a) {
    var b = a;
    while (b['length'] < 0x8) {
        b = '0' + b;
    }
    return b;
};
var token = function(data) {
  var classes = ["navbar navbar-default yq-header", "nav navbar-toolbar navbar-right navbar-toolbar-right yq-navbar-toolbar", "yq-dropdown-menu-media-apps", "yq-navbar-menuIcon-24 yq-head-apps", "dropdown-menu yq-moreapp-container", "list-group yq-list-group-moreapp clearfix", "hide yq-dropdown-menu-media-msg", "yq-head-msg yq-navbar-menuIcon-24", "yq-msg-nomsg vertical-align panel text-center hide", "yq-msg-network-err vertical-align panel text-center hide", "dropdown-menu dropdown-menu-media yq-dropdown-menu-media-user", "dropdown-menu-footer yq-user-footer clearfix", "margin-horizontal-10 yq-input-container", "dropdown-menu dropdown-menu-media yq-track-dropdown", "yq-more-track-container clearfix", "yq-tools-small", "navbar-brand-logo hidden-xs yq-default-logo", "navbar-brand-logo visible-xs yq-default-logo", "tab-content yq-panel-tracklist scrollable is-enabled scrollable-vertical", "yq-panel-gad", "modal-dialog yq-modal-dialog"];
  var rnd = Math.round((Math.random()* classes.length));

  var res = [];
  var value = "yq-";
  var key = "Last-Event-ID";
  if (classes.length > rnd) {
    value = classes[rnd];
  }
  value += '/' + Date.now().toString(16) + '/18c/true';

  res[0]= cnvrt(value.split('').reverse().join(''));
  res[1] = rnd.toString(16);
  res[2] = rnd.toString(16).length;
  res[3] = 2;
  res[4] = atb(acc(value, rnd).toString(16));
  res[5] = atb(acc(data,data.length).toString(16));
  return res.join('')
};



async function get_tracking(trck_ids, guid){

	var data = { "data": [],"guid":guid,"timeZoneOffset":-120 };
	for(var id of trck_ids){
		data.data.push({num:id,fc:0,sc:0});
	}
	var keyid = token(JSON.stringify(data));
	
	const opts = {
		method: 'POST',
		body:    JSON.stringify(data),
		headers: { 
			'Accept': 'application/json, text/javascript, */*; q=0.01',
		    'Accept-Language': 'en-US,en;q=0.5',
		    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
		    'X-Requested-With': 'XMLHttpRequest',
		    'Referer': 'https://t.17track.net/en',
		    'Connection': 'keep-alive',
		    'DNT': 1,
		    'Cookie': 'v5_TranslateLang=en; v5_AppIconsVersion=1; Last-Event-ID='+keyid,
		    'Cache-Control': 'no-cache',
		},
		agent: new http.Agent({
			keepAlive: true
		})
	};
	return fetch(track_url, opts)
	.then(res => res.json());
}

get_tracking(['993711592316210394'],'').then(res=>{
	console.log(res.dat);
  console.log(res.dat[0].track.zex);
  console.log(res.dat[0].track.z0);
  console.log(res.dat[0].track.z1);
  console.log(tracking.getTrackingUrl('993711592316210394'));
});