55 lines
1.6 KiB
JavaScript
55 lines
1.6 KiB
JavaScript
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var songEndpoint = "https://stream.services.nez-cf.net.eu.org:1965/ntv_nowplaying.php";
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function fetchSong() {
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return new Promise((resolve, reject) => {
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var xhr = new XMLHttpRequest();
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xhr.addEventListener("load", function() {
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if (this.status == 200) resolve(this.responseText);
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else reject(this);
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});
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xhr.open("GET", songEndpoint);
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xhr.send();
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});
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}
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function spacePad(i, c = " ", a = 32) {
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var l = 32 - i.length;
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if (l < 0) l = 0;
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return i + c.repeat(l);
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}
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var scrollIndex = -1;
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var scrollText = "";
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var scrollElement = "null";
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var skipTurns = 0;
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var skipTurnsBegin = 5;
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function scroller() {
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if (scrollElement == "null") return;
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if (skipTurns > 0) return skipTurns--;
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if (skipTurnsBegin > 0) skipTurnsBegin--;
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scrollIndex++;
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if (scrollIndex > scrollText.length) {
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scrollIndex = -1;
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skipTurnsBegin = 5;
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return skipTurns = 5;
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}
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if (scrollText.length > 32) scrollElement.innerHTML = spacePad(scrollText.substr(skipTurnsBegin > 0 ? 0 : scrollIndex, 32).replace(/ /g, " "));
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else scrollElement.innerHTML = spacePad(scrollText.replace(/ /g, " "));
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}
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async function updateSongs() {
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var song = await fetchSong();
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song = "now playing: " + song;
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if (scrollText != song) {
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scrollText = song;
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scrollIndex = -1;
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}
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}
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document.addEventListener("DOMContentLoaded", function() {
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scrollElement = document.getElementById("song-display");
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setInterval(scroller, 200);
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updateSongs();
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setInterval(updateSongs, 20 * 1000);
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});
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