const fs = require('fs');
const fetch = require('node-fetch');

const Markup = require('telegraf/markup');
const Extra = require('telegraf/extra');

const db_js = require('./db.js');

var db = new db_js("17track");

//=== TOOL FUNCTIONS


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){

	var data = { "data": [],"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',
		    '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())
	.then(res => {
		var results = [];
        for(var rr of res.dat){
        	if(rr.track)
	        	results.push({id:rr.no, date:rr.track.z0.a, loc:rr.track.z0.c, status:rr.track.z0.z});
	        else
	        	results.push({id:rr.no, date:'', loc:'', status:"Unknown"});
        }
        return results;
	});
}

//=== MAIN MODULE CONFIG

module.exports = function(){
	this.key = "17trk";
	return {
	name : "17Track", //Unique Module name
	key : this.key, //Unique Key for this module, if multiple instances add a number/text to it
	version : 0.1, //Version Number, Currently unused
	requirements : {
		gps: false, //Currently un-used (all module have access to GPS)
	},
	text : [
		{
			trigger : ["/track"], //Array of Triggers
			public : true, //Should it be shown to user (user can still run the command without knowing it exists)
			desc : {0:"Tracking with options",
					1:"*insert french*",
					2:"*insert japanese*",
					3:"*insert arabic*",
			},
			requirements : (bot,event,message)=>{ 
				return new Promise((resolve, reject)=>{
					return resolve(200);
				});
			},
			action : (bot,event,message)=>{
				let kb = [];
				kb.push([bot.mkcb("Refresh","refresh","")]) ;
				kb.push([bot.mkcb_close("Close"),bot.mkcb("Delete","del","")]);
				var new_ids = [];
				if(message.text_arg && message.text_arg.length >0){
					new_ids = message.text_args.replace('.','').replace(',','\n').replace(' ','\n').split('\n');
				}
				return db.get_v(event.chat.id).then(res =>{
					var ids = res.concat(new_ids);
					if(ids.length == 0){
						return event.reply("*No Tracking Yet*", {"parse_mode":"Markdown"});
					}else{
						return db.set_v(event.chat.id,ids).then(res=>{
							return get_tracking(res).then(res=>{
								var text = "*Tracking*\n\n";
								for(var rr of res){
									text+=`*${rr.id}* (_${rr.date?rr.date:'Unknown'} - ${rr.loc?rr.loc:'Unknown'}_)\n${rr.status}\n\n`;
								}
								return event.reply( text, {"reply_markup":Markup.inlineKeyboard(kb),"parse_mode":"Markdown"});
							});
						});
					}
					
				});
			}
		},
	],
	reply : [],
	regex : [],
	media : [],
	callback : [
		{
			trigger : 'refresh',
			requirements : (bot,event,data)=>{ 
				return new Promise((resolve, reject)=>{
					return resolve(200);
				});
			},
			action : (bot,event,data)=>{
				let kb = [];
				kb.push([bot.mkcb("Refresh","refresh","")]) ;
				kb.push([bot.mkcb_close("Close"),bot.mkcb("Delete","del","")]);
				return db.get_v(event.chat.id).then(res =>{
					var ids = res;
					if(ids.length == 0){
						return event.editMessageText("*No Tracking Yet*", {"parse_mode":"Markdown"});
					}else{
						return db.set_v(event.chat.id,ids).then(res=>{
							return get_tracking(res).then(res=>{
								var text = `*Tracking* (Updated: ${new Date().toLocaleString()})\n\n`;
								for(var rr of res){
									text+=`*${rr.id}* (_${rr.date?rr.date:'Unknown'} - ${rr.loc?rr.loc:'Unknown'}_)\n${rr.status}\n\n`;
								}
								return event.editMessageText( text, {"reply_markup":Markup.inlineKeyboard(kb),"parse_mode":"Markdown"});
							});
						});
					}
					
				});
			}
		},
		{
			trigger : 'del',
			requirements : (bot,event,data)=>{ 
				return new Promise((resolve, reject)=>{
					return resolve(200);
				});
			},
			action : (bot,event,data)=>{
				return db.get_v(event.chat.id).then(res =>{
					if(res && res != []){
						if(data){
							for( var i = 0; i < res.length; i++){ 
								if ( res[i] == data) { 
									res.splice(i, 1); 
								}
							}
							return db.set_v(event.chat.id,res).then(res=>{
								return event.editMessageText("*Tracking Deleted*", {"parse_mode":"Markdown"});
							});
						}else{
							let kb = [];
							for(var rr of res){
								kb.push([bot.mkcb(rr,"del",rr)])
							}
							kb.push([bot.mkcb_close("Close")]);
							return event.editMessageText( "Select Tracking Number To Delete" , {"reply_markup":Markup.inlineKeyboard(kb),"parse_mode":"Markdown"});
						}
					}else{
						return event.editMessageText("*No Tracking To Delete*", {"parse_mode":"Markdown"});
					}
				});
			}
		}
	],
	inline : [],
	new_member : (bot,event)=>{},
	weburl : [],
	cron : []
}
	
}