93 lines
3.3 KiB
JavaScript
93 lines
3.3 KiB
JavaScript
const $ = id => document.getElementById(id);
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const formatDuration = date => `${date.getUTCHours() > 0 ? date.getUTCHours() + ":" : ""}${date.getUTCMinutes()}:${date.getUTCSeconds().toString().padStart(2, "0")}`;
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const formatStartAt = date => `${date.getHours().toString().padStart(2, "0")}:${date.getMinutes().toString().padStart(2, "0")}`;
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let cursong_startat = null;
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let cursong_duration_msec = 0;
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async function updateStatus() {
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const resp = await fetch("/api/status");
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if (!resp.ok || 200 != resp.status) {
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$("radio-song").textContent =
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$("radio-duration-estimate").textContent =
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$("radio-duration").textContent = "";
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$("radio-listeners").textContent = "0";
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$("last-songs").lastChild.remove();
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return [-1, null];
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}
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const s = await resp.json();
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if (undefined != s.last_songs) {
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$("last-songs").lastChild.remove();
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$("last-songs").appendChild(document.createElement("tbody"));
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for (let i = 0; i < s.last_songs.length; ++i) {
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let row = $("last-songs").lastChild.insertRow();
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row.insertCell().appendChild(document.createTextNode(formatStartAt(new Date(s.last_songs[i].start_at))));
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row.insertCell().appendChild(document.createTextNode((s.last_songs[i].listeners == undefined ? "" : s.last_songs[i].listeners + "/") + (s.last_songs[i].peak_listeners == undefined ? "" : s.last_songs[i].peak_listeners)));
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row.insertCell().appendChild(document.createTextNode(`${s.last_songs[i].artist} - ${s.last_songs[i].title}`));
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}
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}
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if (undefined == s.current_song || undefined == s.current_song.duration_msec)
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return [-1, null];
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$("radio-song").textContent = `${s.current_song.artist} - ${s.current_song.title}`;
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$("radio-listeners").textContent = s.listeners;
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$("radio-duration").textContent = formatDuration(new Date(s.current_song.duration_msec));
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return [s.current_song.duration_msec, new Date(s.current_song.start_at)];
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}
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async function update() {
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if (null === cursong_startat)
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return -1;
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const estimate = (new Date()) - (new Date(cursong_startat));
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if (estimate >= cursong_duration_msec) {
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return 1;
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}
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$("radio-duration-estimate").textContent = `${formatDuration(new Date(estimate))} / `;
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return 0;
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}
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let update_interval_id = null;
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async function interval() {
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switch (await update()) {
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case 1:
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[cursong_duration_msec, cursong_startat] = await updateStatus();
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break;
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case -1:
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clearInterval(update_interval_id);
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await new Promise(resolve => setTimeout(resolve, 5000));
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[cursong_duration_msec, cursong_startat] = await updateStatus();
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update_interval_id = setInterval(interval, 1000);
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}
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}
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updateStatus().then(r => [cursong_duration_msec, cursong_startat] = r);
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update_interval_id = setInterval(interval, 1000);
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const audio = document.getElementsByTagName("audio")[0];
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audio.hidden = true;
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const audio_src = audio.childNodes[0].src;
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const volume = $("radio-volume");
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volume.value = +(localStorage.getItem("volume") || 50);
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audio.volume = volume.value / 100.0;
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volume.addEventListener("input", e => {
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audio.volume = e.target.value / 100.0;
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localStorage.setItem("volume", e.target.value); });
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$("player").style.display = $("player").firstChild.style.display = "flex";
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$("radio-play").addEventListener("click", e => {
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audio.paused ? (audio.src = audio_src) && audio.play() : audio.src = "";
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e.target.style.backgroundImage = audio.paused ?
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"url(/assets/img/play.svg)" : "url(/assets/img/stop.svg)"; });
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