591 lines
18 KiB
JavaScript
591 lines
18 KiB
JavaScript
setInterval(getState, 4000);
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setInterval(updateProgress, 500); // Update progress every second
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/* Global single-flight queue for XMLHttpRequest
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- Serializes all XHR to 1 at a time
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- Adds timeouts (GET ~3.5s, POST ~6s, /upload 10min)
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- Deduplicates idempotent GETs to same URL (drops duplicates)
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This reduces concurrent load on the ESP32 web server and SD card. */
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(function(){
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var origOpen = XMLHttpRequest.prototype.open;
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var origSend = XMLHttpRequest.prototype.send;
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var queue = [];
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var active = null;
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var inflightKeys = new Set();
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function keyOf(xhr){ return (xhr.__method || 'GET') + ' ' + (xhr.__url || ''); }
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function startNext(){
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if (active || queue.length === 0) return;
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var item = queue.shift();
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active = item;
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inflightKeys.add(item.key);
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var xhr = item.xhr;
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var timeoutMs = item.timeoutMs;
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var timer = null;
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function cleanup() {
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active = null;
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inflightKeys.delete(item.key);
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if (timer) { clearTimeout(timer); timer = null; }
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setTimeout(startNext, 0);
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}
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xhr.addEventListener('loadend', cleanup);
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if (timeoutMs > 0 && !xhr.__skipTimeout) {
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timer = setTimeout(function(){
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try { xhr.abort(); } catch(e){}
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}, timeoutMs);
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}
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item.origSend.call(xhr, item.body);
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}
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XMLHttpRequest.prototype.open = function(method, url, async){
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this.__method = (method || 'GET').toUpperCase();
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this.__url = url || '';
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return origOpen.apply(this, arguments);
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};
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XMLHttpRequest.prototype.send = function(body){
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var key = keyOf(this);
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var isIdempotentGET = (this.__method === 'GET');
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var timeoutMs;
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if ((this.__url || '').indexOf('/upload') !== -1) {
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timeoutMs = 600000; // 10 minutes for uploads
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} else if (this.__method === 'GET') {
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timeoutMs = 6000;
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} else {
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timeoutMs = 8000;
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}
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if (isIdempotentGET && inflightKeys.has(key)) {
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// Drop duplicate GET to same resource
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return;
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}
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if (isIdempotentGET) {
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for (var i = 0; i < queue.length; i++) {
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if (queue[i].key === key) {
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// Already queued; keep most recent body if any
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queue[i].body = body;
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return;
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}
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}
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}
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var item = { xhr: this, body: body, key: key, timeoutMs: timeoutMs, origSend: origSend };
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queue.push(item);
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startNext();
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};
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})();
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/* Dynamic content loaders for playlist and mapping (avoid heavy template processing on server) */
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function bindPlaylistClicks() {
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var container = document.getElementById('playlistContainer');
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if (!container) return;
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container.onclick = function(e) {
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var li = e.target.closest('li');
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if (!li || !container.contains(li)) return;
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var id = li.dataset && li.dataset.id;
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if (id) playSongById(id);
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};
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}
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function loadDirectory() {
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var container = document.getElementById('playlistContainer');
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if (!container) return;
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var xhr = new XMLHttpRequest();
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xhr.open('GET', '/directory', true);
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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if (xhr.status >= 200 && xhr.status < 300) {
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container.innerHTML = xhr.responseText || '';
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bindPlaylistClicks();
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} else {
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container.innerHTML = '<div class="hint">Failed to load playlist.</div>';
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}
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}
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};
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xhr.send();
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}
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function loadMapping() {
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var el = document.getElementById('mappingList');
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if (!el) return;
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var xhr = new XMLHttpRequest();
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xhr.open('GET', '/mapping', true);
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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if (xhr.status >= 200 && xhr.status < 300) {
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el.innerHTML = xhr.responseText || '';
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} else {
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el.innerHTML = '<div class="hint">Failed to load mapping.</div>';
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}
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}
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};
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xhr.send();
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}
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/* Kick off dynamic loads on DOM ready */
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document.addEventListener('DOMContentLoaded', function() {
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loadDirectory();
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loadMapping();
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getState();
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});
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var lastChange = 0;
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var lastStateUpdateTime = Date.now();
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var songStartTime = 0;
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var currentSongLength = 0;
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var isPlaying = false;
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var userIsInteracting = false; // Flag to track user interaction with the slider
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// Format seconds into mm:ss or hh:mm:ss when needed
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function formatTime(totalSec) {
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totalSec = Number.isFinite(totalSec) ? Math.max(0, Math.floor(totalSec)) : 0;
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var h = Math.floor(totalSec / 3600);
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var m = Math.floor((totalSec % 3600) / 60);
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var s = totalSec % 60;
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function pad(n) { return n < 10 ? '0' + n : '' + n; }
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if (h > 0) return h + ':' + pad(m) + ':' + pad(s);
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return m + ':' + pad(s);
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}
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// Add click event listener to each <li> element
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/* Clicks are handled via event delegation in bindPlaylistClicks() */
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function simpleGetCall(endpoint) {
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var xhr = new XMLHttpRequest();
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xhr.open("GET", "/" + endpoint, true);
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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getState(); // Fetch the latest state right after the button action
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}
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};
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xhr.send();
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}
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function postValue(endpoint,value) {
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "/" + endpoint, true);
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xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
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xhr.send("value="+encodeURIComponent(value));
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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getState(); // Fetch the latest state right after the button action
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}
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};
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}
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function getState() {
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var xhr = new XMLHttpRequest();
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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if (xhr.status >= 200 && xhr.status < 300) {
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try {
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var state = JSON.parse(xhr.responseText || xhr.response || '{}');
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isPlaying = !!state['playing'];
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if (isPlaying) {
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songStartTime = Date.now() - ((state['time'] || 0) * 1000);
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currentSongLength = ((state['length'] || 0) * 1000);
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}
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lastStateUpdateTime = Date.now();
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displayState(state);
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} catch (e) {
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// Ignore parse errors; will retry on next poll
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}
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}
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}
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};
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xhr.open("GET","/state", true);
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xhr.send();
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}
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function updateProgress() {
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if (isPlaying && !userIsInteracting) { // Check if user is not interacting
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var elapsedTime = Date.now() - songStartTime;
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if (elapsedTime >= currentSongLength) {
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elapsedTime = currentSongLength;
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isPlaying = false; // Stop updating if the song has ended
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}
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var progressElement = document.getElementById('progressSlider');
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progressElement.value = elapsedTime / 1000; // Convert to seconds
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var seconds = Math.floor(elapsedTime / 1000);
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document.getElementById("progressLabel").innerHTML = formatTime(seconds);
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}
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}
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function displayState(state) {
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var title = state['title'] || '—';
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var titleEl = document.getElementById("state");
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if (titleEl) titleEl.innerHTML = title;
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var bigTitleEl = document.getElementById("stateTitle");
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if (bigTitleEl) bigTitleEl.innerText = title;
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var progressLabel = document.getElementById("progressLabel");
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if (progressLabel) progressLabel.innerHTML = formatTime(Math.floor(state['time'] || 0));
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var progressMax = document.getElementById("progressMax");
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if (progressMax) progressMax.innerHTML = formatTime(Math.floor(state['length'] || 0));
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var voltageEl = document.getElementById("voltage");
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if (voltageEl) voltageEl.innerHTML = (state['voltage'] || '') + ' mV';
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var heapEl = document.getElementById("heap");
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if (heapEl) heapEl.innerHTML = (state['heap'] || '') + ' bytes free heap';
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var uidEl = document.getElementById("uid");
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if (uidEl) uidEl.innerHTML = 'Last NFC ID: ' + (state['uid'] || '');
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/* Autofill convenience fields */
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var fm = document.getElementById('fileManager');
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if (state['filepath'] && fm && fm.style.display == 'none') {
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var moveFrom = document.getElementById('moveFrom');
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var deleteFileName = document.getElementById('deleteFileName');
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var song = document.getElementById('song');
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if (moveFrom) moveFrom.value = state['filepath'];
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if (deleteFileName) deleteFileName.value = state['filepath'];
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if (song) song.value = state['filepath'];
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}
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if (state['uid']) {
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var rfidEl = document.getElementById('rfid');
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if (rfidEl) rfidEl.value = state['uid'];
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}
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var btn = document.querySelector('.play-button');
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if (btn) {
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if (state['playing']) {
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btn.classList.add('paused');
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} else {
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btn.classList.remove('paused');
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}
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}
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if (Date.now()-lastChange>1200) {
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var progress = document.getElementById('progressSlider');
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if (progress) {
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progress.value = state['time'];
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progress.max = state['length'];
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}
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var volume = document.getElementById('volumeSlider');
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if (volume) volume.value = state['volume'];
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}
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updateProgress();
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}
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function playSongById(id) {
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var url = "/playbyid";
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var params = "id="+id;
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var http = new XMLHttpRequest();
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http.open("GET", url+"?"+params, true);
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http.onreadystatechange = function()
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{
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if(http.readyState == 4 && http.status == 200) {
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getState();
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}
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}
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http.send(null);
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}
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function playNamedSong(song) {
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "/playnamed");
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xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
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var body = song;
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xhr.send("title="+encodeURIComponent(body));
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}
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function editMapping() {
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var rfid = document.getElementById('rfid').value;
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var song = document.getElementById('song').value;
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var modeEl = document.getElementById('mode');
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var mode = modeEl ? modeEl.value : 's';
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "/edit_mapping", true);
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xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
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xhr.send("rfid=" + encodeURIComponent(rfid) + "&song=" + encodeURIComponent(song) + "&mode=" + encodeURIComponent(mode));
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4 && xhr.status === 200) {
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alert("Mapping updated successfully!");
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} else if (xhr.readyState === 4) {
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alert("Failed to update mapping: " + (xhr.responseText || xhr.status));
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}
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};
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}
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// Validate file before upload
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function validateFile(file) {
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var maxSize = 50 * 1024 * 1024; // 50MB limit
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var allowedTypes = ['audio/mpeg', 'audio/wav'];
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var allowedExtensions = ['.mp3'];
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if (file.size > maxSize) {
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return 'File too large. Maximum size is 50MB.';
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}
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var fileName = file.name.toLowerCase();
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var hasValidExtension = allowedExtensions.some(ext => fileName.endsWith(ext));
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if (!hasValidExtension) {
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return 'Invalid file type';
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}
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return null; // No error
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}
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// Handle form submission with AJAX to show upload status
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document.getElementById('uploadForm').addEventListener('submit', function(event) {
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event.preventDefault(); // Prevent the default form submit
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var fileInput = document.getElementById('uploadFile');
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var file = fileInput.files[0];
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if (!file) {
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alert('Please select a file to upload.');
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return;
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}
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var validationError = validateFile(file);
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if (validationError) {
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alert(validationError);
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return;
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}
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var form = event.target;
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var formData = new FormData(form);
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var uploadButton = document.getElementById('uploadButton');
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var uploadStatus = document.getElementById('uploadStatus');
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var uploadProgress = document.getElementById('uploadProgress');
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var progressFill = document.getElementById('progressFill');
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var progressText = document.getElementById('progressText');
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// Disable upload button and show progress
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uploadButton.disabled = true;
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uploadButton.value = 'Uploading...';
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uploadProgress.style.display = 'block';
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uploadStatus.innerHTML = 'Preparing upload...';
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var xhr = new XMLHttpRequest();
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xhr.open('POST', '/upload', true);
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xhr.upload.onloadstart = function() {
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uploadStatus.innerHTML = 'Upload started...';
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};
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xhr.upload.onprogress = function(event) {
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if (event.lengthComputable) {
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var percentComplete = Math.round((event.loaded / event.total) * 100);
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progressFill.style.width = percentComplete + '%';
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progressText.innerHTML = percentComplete + '%';
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uploadStatus.innerHTML = 'Uploading: ' + percentComplete + '% (' +
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Math.round(event.loaded / 1024) + 'KB / ' +
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Math.round(event.total / 1024) + 'KB)';
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}
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};
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xhr.upload.onerror = function() {
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uploadStatus.innerHTML = 'Upload failed due to network error.';
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resetUploadForm();
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};
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xhr.upload.onabort = function() {
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uploadStatus.innerHTML = 'Upload was cancelled.';
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resetUploadForm();
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};
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) { // Request is done
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if (xhr.status >= 200 && xhr.status < 300) { // Success status code range
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uploadStatus.innerHTML = 'Upload completed successfully!';
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progressFill.style.width = '100%';
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progressText.innerHTML = '100%';
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setTimeout(function() {
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alert('File uploaded successfully!');
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location.reload(); // Reload to get updated playlist
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}, 1000);
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} else {
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var errorMsg = xhr.responseText || 'Unknown error occurred';
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uploadStatus.innerHTML = 'Upload failed: ' + errorMsg;
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alert('Upload failed: ' + errorMsg);
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resetUploadForm();
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}
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}
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};
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xhr.send(formData); // Send the form data using XMLHttpRequest
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});
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function resetUploadForm() {
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var uploadButton = document.getElementById('uploadButton');
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var uploadProgress = document.getElementById('uploadProgress');
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var progressFill = document.getElementById('progressFill');
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var progressText = document.getElementById('progressText');
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uploadButton.disabled = false;
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uploadButton.value = 'Upload';
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uploadProgress.style.display = 'none';
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progressFill.style.width = '0%';
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progressText.innerHTML = '0%';
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// Clear file input
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document.getElementById('uploadFile').value = '';
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}
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/* File Manager Functions */
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function toggleFileManager() {
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var fm = document.getElementById('fileManager');
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if (fm.style.display === 'none' || fm.style.display === '') {
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fm.style.display = 'block';
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} else {
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fm.style.display = 'none';
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}
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}
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function moveFile() {
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var from = document.getElementById('moveFrom').value.trim();
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var to = document.getElementById('moveTo').value.trim();
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if (!from || !to) {
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alert('Please provide both source and destination paths.');
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return;
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}
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var xhr = new XMLHttpRequest();
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xhr.open('GET', '/move_file?from=' + encodeURIComponent(from) + '&to=' + encodeURIComponent(to), true);
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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if (xhr.status >= 200 && xhr.status < 300) {
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alert('File moved successfully.');
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location.reload();
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} else {
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alert('Move failed: ' + (xhr.responseText || 'Unknown error'));
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}
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}
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};
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xhr.send();
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}
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function deleteFileOnServer() {
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var filename = document.getElementById('deleteFileName').value.trim();
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if (!filename) {
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alert('Please provide filename to delete.');
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return;
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}
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if (!confirm('Are you sure you want to delete ' + filename + '?')) {
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return;
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}
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var xhr = new XMLHttpRequest();
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xhr.open('GET', '/delete_file?filename=' + encodeURIComponent(filename), true);
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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if (xhr.status >= 200 && xhr.status < 300) {
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alert('File deleted successfully.');
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location.reload();
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} else {
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alert('Delete failed: ' + (xhr.responseText || 'Unknown error'));
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}
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}
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};
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xhr.send();
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}
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/* Ensure the site stylesheet loads reliably — retry loader if necessary
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Improved detection: verify a computed style from CSS is applied (safer than just checking stylesheet href).
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Retries with exponential backoff and deduplicates link tags we add. */
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(function ensureCssLoaded(){
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var retries = 0;
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var maxRetries = 6;
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// Check a computed style that the stylesheet defines.
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// .status color in CSS is --muted: #6b7280 -> rgb(107, 114, 128)
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function isStyleApplied() {
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var el = document.querySelector('.status') || document.querySelector('.topbar');
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if (!el) return false;
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try {
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var color = getComputedStyle(el).color;
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// Expect "rgb(107, 114, 128)" when CSS is applied
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if (!color) return false;
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// Loose check for the three numeric components to be present
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return color.indexOf('107') !== -1 && color.indexOf('114') !== -1 && color.indexOf('128') !== -1;
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} catch (e) {
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return false;
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}
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}
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function removeOldRetryLinks() {
|
|
var links = Array.prototype.slice.call(document.querySelectorAll('link[data-retry-css]'));
|
|
links.forEach(function(l){ l.parentNode.removeChild(l); });
|
|
}
|
|
|
|
function tryLoad() {
|
|
if (isStyleApplied()) {
|
|
console.log('style.css appears applied');
|
|
return;
|
|
}
|
|
if (retries >= maxRetries) {
|
|
console.warn('style.css failed to apply after ' + retries + ' attempts');
|
|
return;
|
|
}
|
|
retries++;
|
|
// Remove previous retry-inserted links to avoid piling them up
|
|
removeOldRetryLinks();
|
|
|
|
var link = document.createElement('link');
|
|
link.rel = 'stylesheet';
|
|
link.setAttribute('data-retry-css', '1');
|
|
// cache-busting query to force a fresh fetch when retrying
|
|
link.href = 'style.css?cb=' + Date.now();
|
|
var timeout = 800 + retries * 300; // increasing timeout per attempt
|
|
|
|
var done = false;
|
|
function success() {
|
|
if (done) return;
|
|
done = true;
|
|
// Give browser a short moment to apply rules
|
|
setTimeout(function(){
|
|
if (isStyleApplied()) {
|
|
console.log('style.css loaded and applied (attempt ' + retries + ')');
|
|
} else {
|
|
console.warn('style.css loaded but styles not applied — retrying...');
|
|
setTimeout(tryLoad, timeout);
|
|
}
|
|
}, 200);
|
|
}
|
|
|
|
link.onload = success;
|
|
link.onerror = function() {
|
|
if (done) return;
|
|
done = true;
|
|
console.warn('style.css load error (attempt ' + retries + '), retrying...');
|
|
setTimeout(tryLoad, timeout);
|
|
};
|
|
|
|
// Append link to head
|
|
document.head.appendChild(link);
|
|
|
|
// Safety check: if onload/onerror doesn't fire, verify computed style after timeout
|
|
setTimeout(function(){
|
|
if (done) return;
|
|
if (isStyleApplied()) {
|
|
console.log('style.css appears applied (delayed check)');
|
|
} else {
|
|
console.warn('style.css still not applied after timeout (attempt ' + retries + '), retrying...');
|
|
setTimeout(tryLoad, timeout);
|
|
}
|
|
}, timeout + 300);
|
|
}
|
|
|
|
// Start after a short delay to let the browser initiate initial requests
|
|
setTimeout(tryLoad, 150);
|
|
})();
|