Twitch Stream Check

// Rewrite to Twitch Helix API Version, the original script is written by someone else

var apiKey = "YourApiKey";
var username = "YourChannelName";
var twitch_widget = $("#livestream, #livestream-button");
var recntStatChange = 0;
var visitOffline = 0;
var long = 60000;
var short = 5000;

function refresh() {
    handleTwitchStream();
}

function notRecnt() {
    if (recntStatChange == 0) {
        recntStatChange = 1;
    } else {
        if (recntStatChange == 1) {
            recntStatChange = 0;
        }
    }
}

function recntAndRefresh() {
    handleTwitchStream();
    notRecnt();
}

function handleTwitchStream() {
    twitch_widget.attr(`href`, `https://twitch.tv/${username}`);

    $.ajax({
        url: `https://api.twitch.tv/helix/streams?user_login=${username}`,
        type: `GET`,
        dataType: `json`,
        headers: {
            "Client-ID": apiKey
        },
        success: (res) => {
            if (res.data.length > 0) {
                if (recntStatChange == 0) {
                    showStreamElements();
                    visitOffline = 1;
                    setTimeout(recntAndRefresh, long);
                }
                if (recntStatChange == 1) {
                    setTimeout(refresh, short);
                    //Refresh period set to short, streaming
                }
            }
            else {
                if (recntStatChange == 1) {
                    hideStreamElements();
                    setTimeout(recntAndRefresh, long);
                }
                if (recntStatChange == 0) {
                    if (visitOffline == 0) {
                        visitOffline = 1;
                        setTimeout(refresh, long/2);
                    }
                    else {
                        setTimeout(refresh, short);
                    }
                }
            }
        },
        error: hideStreamElements
    });
}

function hideStreamElements() {
    $("#livestream, #livestream-button, #livestream iframe").addClass("hidetwitch");
    $iframe = $("#livestream, #livestream-button").find("iframe");
    $iframe.attr("src", $iframe.attr("src"));
}

function showStreamElements() {
    $("#livestream, #livestream-button, #livestream iframe").removeClass("hidetwitch");
}