Dwelling/radio/static/assets/js/main.js

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JavaScript
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function $(id) { return document.getElementById(id); }
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function updateRadioStatus() {
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fetch("/stats")
.then(r => r.json())
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.then(r => {
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$("radio-status").innerHTML =
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`On-air since <time datetime="${r.server_start_iso8601}">${r.server_start_date}</time>`;
$("radio-song").textContent = r.song;
$("radio-listeners").textContent = r.listeners;
$("radio-listener-peak").textContent = r.listener_peak;
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}).catch(() => {
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$("radio-status").textContent = "Radio is offline.";
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$("radio-song").textContent =
$("radio-listeners").textContent =
$("radio-listener-peak").textContent = "n/a";
});
}
function updateLastPlayedSong() {
fetch('/lastsong')
.then(r => r.json())
.then(last_played => {
let cur_artist = $('last-played').firstChild.lastChild.children[1].innerText;
let cur_title = $('last-played').firstChild.lastChild.lastChild.innerText;
if (last_played.artist == cur_artist && last_played.title == cur_title)
return;
$('last-played').firstChild.firstChild.remove();
let row = $('last-played').insertRow();
let start_time = row.insertCell();
start_time.appendChild(document.createTextNode(last_played.start_time_local));
let artist_cell = row.insertCell();
artist_cell.appendChild(document.createTextNode(last_played.artist));
let title_cell = row.insertCell();
title_cell.appendChild(document.createTextNode(last_played.title));
});
}
document.getElementById("btn-update").addEventListener("click", () => {
updateLastPlayedSong();
updateRadioStatus();
})
setInterval(updateRadioStatus, 45000);
setInterval(updateLastPlayedSong, 45000);