background.js

$(document).ready(function(){

    var keys = ["AIzaSyAobtIM9MXaMsxwYIl3UWppbDU9lN9i0SY", "AIzaSyB8Ye39ZELzbEtOesRAOWPMS3Ya9jRSyh4", "AIzaSyDC1Gs3Y6XLo4TSH2I2SYFimPctgtJNLYw"];
        ytID = '';
        twitch_data = '';
        titleForNtf = '';
        twitchID = '';
        nowOnline = '';

    ChannelType = {
        YOUTUBE = 0,
        TWITCH = 1
    };

    var liveStatus = new Array();
        liveStatus[ChannelType.TWITCH] = 'offline';
        liveStatus[ChannelType.YOUTUBE] = 'offline';

    var NilfgornChannelId = "UCEdCg-dup5LY-v5Y5F7IeTQ";

    updateData();



    function getTwitch(){
        $.ajax({
            url: 'https://api.twitch.tv/kraken/streams/nilfgorn',
            type: 'GET',
            async: false,
            complete: function(senddata){
                var data=JSON.stringify(senddata);
                    data=JSON.parse(data);
                    twitch_data=JSON.parse(data.responseText);
                if (twitch_data.stream == null){
                    liveStatus['tw'] = 'offline';
                } else {
                    if (twitchID == twitch_data.stream._id) {
                        liveStatus[ChannelType.TWITCH] = 'offline';
                    } else {
                        liveStatus[ChannelType.TWITCH] = 'online';
                        twitchID = twitch_data.stream._id;
                        titleForNtf = twitch_data.stream.channel.status + ' (' + twitch_data.stream.channel.game + ')';
                    }
                };
            }
        });
    };




    function getYoutubeLive(cid){
        $.ajax({
            url: 'https://www.googleapis.com/youtube/v3/search?key='+keys[Math.floor((Math.random() * 3))]+'&part=snippet&type=video&channelId='+cid+'&order=date&eventType=live',
            type: 'GET',
            async: false,
            complete: function(senddata){
                var data=JSON.stringify(senddata);
                    data=JSON.parse(data);
                    yt_result=JSON.parse(data.responseText);

                if (yt_result.pageInfo.totalResults == 0 || nowOnline == yt_result.items[0].id.videoId)
                {
                    if (cid == NilfgornChannelId)
                    {
                        liveStatus[ChannelType.YOUTUBE] = 'offline';
                    }
                    else
                    {
                        liveStatus[ChannelType.TWITCH] = 'offline';
                    }
                }
                else
                {
                    if (cid == NilfgornChannelId)
                    {
                            liveStatus[ChannelType.YOUTUBE] = 'online';
                            nowOnline =  yt_result.items[0].id.videoId;
                            titleForNtf = yt_result.items[0].snippet.title;
                    }
                    else
                    {
                        liveStatus[ChannelType.TWITCH] = 'online';
                        nowOnline =  yt_result.items[0].id.videoId;
                        titleForNtf = yt_result.items[0].snippet.title;
                    };

                    ytID = yt_result.items[0].id.videoId;

                        $.ajax({
                            url: 'https://www.googleapis.com/youtube/v3/search?key='+keys[Math.floor((Math.random() * 3))]+'&part=snippet&type=video&channelId='+cid+'&order=date&eventType=completed',
                            type: 'GET',
                            async: false,
                            complete: function(senddata){
                                var data=JSON.stringify(senddata);
                                    data=JSON.parse(data);
                                    check_yt_result=JSON.parse(data.responseText);
                                if (check_yt_result.items[0].id.videoId == ytID) {
                                    if (cid == NilfgornChannelId) {
                                        liveStatus[ChannelType.YOUTUBE] = 'offline';
                                    } else {
                                        liveStatus[ChannelType.TWITCH] = 'offline';
                                    }
                                } else {
                                    if (cid == NilfgornChannelId) {
                                        liveStatus[ChannelType.YOUTUBE] = 'online';
                                    } else {
                                        liveStatus[ChannelType.TWITCH] = 'online';
                                    }
                                }
                            }
                        });
                }
            }
        });
    };





    function updateData() {

        getTwitch();

        if (liveStatus[ChannelType.TWITCH]=='online') {

            var mailNotification = new Notification(titleForNtf, {
                tag: "tw",
                body: "Прямо сейчас на Twitch'e",
                icon: "src/img/livetwitch.png"
            });
            mailNotification.onclick = function(){
                window.open("http://twitch.tv/nilfgorn");
                mailNotification.close();
            };

        } else {

            getYoutubeLive(NilfgornChannelId); // UCEdCg-dup5LY-v5Y5F7IeTQ  UCCCPCZNChQdGa9EkATeye4g

            if (liveStatus['yt']=='online') {

                var mailNotification = new Notification(titleForNtf, {
                    tag: "yt",
                    body: "Прямо сейчас на YouTube'e",
                    icon: "src/img/liveyoutube.png"
                });
                mailNotification.onclick = function(){
                    window.open("https://youtu.be/" + ytID);
                    mailNotification.close();
                };

            } else {

                getYoutubeLive(NilfgornChannelId);

                if (liveStatus[ChannelType.TWITCH] == 'online') {

                    var mailNotification = new Notification(titleForNtf, {
                        tag: "aw",
                        body: "Прямо сейчас на YouTube'e",
                        icon: "src/img/liveyoutube.png"
                    });
                    mailNotification.onclick = function(){
                        window.open("https://youtu.be/" + ytID);
                        mailNotification.close();
                    };

                }
            }
        };

        setTimeout(updateData, 1000*60*2); // 2 minutes
    }
});