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functions.js
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functions.js
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function setDarkMode() {
document.querySelector('body').classList = 'darkmode';
document.getElementById('sw_light').style.display = 'block';
document.getElementById('sw_dark').style.display = 'none';
}
function setLightMode() {
document.querySelector('body').classList = 'lightmode';
document.getElementById('sw_light').style.display = 'none';
document.getElementById('sw_dark').style.display = 'block';
}
function render() {
document.getElementById('outputBox').innerText = myAlbum.toString();
let trackTable = '';
for (let i = 0; i < myAlbum.tracks.length; i++) {
let currentLine = '<tr><td>' + (i+1) + '</td><td>' + myAlbum.tracks[i].title + '<span class="delete" data-title="' + myAlbum.tracks[i].title + '" onclick="deleteTrack(this)">-</span></td>';
let currentLength = '';
if (myAlbum.tracks.length === 1) {
currentLength = compareTimes('00:00:00', myAlbum.duration);
}
if (i+1 < myAlbum.tracks.length) {
currentLength = compareTimes(myAlbum.tracks[i].cuePoint, myAlbum.tracks[i+1].cuePoint);
}
if (i+1 === myAlbum.tracks.length) {
currentLength = compareTimes(myAlbum.tracks[i].cuePoint, myAlbum.duration);
}
currentLine += '<td>' + currentLength + '</td>';
trackTable += currentLine;
}
document.getElementById('trackTable').innerHTML = trackTable;
document.getElementById('jsonout').innerText = JSON.stringify(myAlbum);
}
function setAlbum() {
let albumArtist = document.querySelector('#albumArtist').value;
let albumTitle = document.querySelector('#albumTitle').value;
let albumDuration = document.querySelector('#duration').value;
try {
if (typeof myAlbum !== 'undefined') {
myAlbum.artist = albumArtist;
myAlbum.title = albumTitle;
myAlbum.duration = albumDuration;
} else {
myAlbum = new Album(albumArtist, albumTitle, albumDuration);
}
render();
} catch (e) {
alert(e.message);
}
}
function addTrack() {
let artist = document.querySelector('#trackArtist').value;
let title = document.querySelector('#trackTitle').value;
let cuePoint = document.querySelector('#cuePoint').value;
try {
myAlbum.addTrack(artist, title, cuePoint);
document.querySelector('#trackArtist').value = '';
document.querySelector('#trackTitle').value = '';
document.querySelector('#cuePoint').value = '';
render();
} catch (e) {
alert(e.message);
}
}
function deleteTrack(trackItem) {
myAlbum.deleteTrack(trackItem.dataset.title);
render();
}
function clearTracks() {
myAlbum.clearTracks();
render();
}
function persist() {
localStorage.setItem('cuesheet_album', JSON.stringify(myAlbum));
}
function loadFromLocal() {
let loaded = localStorage.getItem('cuesheet_album');
try {
load(loaded);
} catch (e) {
alert(e.message);
}
}
function loadFromJSONInput() {
let loaded = document.getElementById('textIn').value;
try {
load(loaded);
document.getElementById('jsonin').value = '';
} catch (e) {
alert(e.message);
}
}
function loadFromTextInput() {
let loaded = document.getElementById("textIn").value;
let loadedLines = loaded.split("\n");
for(let i=0; i<loadedLines.length; i++) {
let currentLineList = loadedLines[i].split(" - ");
let currentCue = currentLineList[0].trim() + ":00";
let currentTitle = currentLineList[2].trim();
let currentArtist = currentLineList[1].trim();
myAlbum.addTrack(currentArtist, currentTitle, currentCue);
render();
}
}
function load(loaded) {
let parsed = JSON.parse(loaded);
myAlbum = new Album(parsed.artist, parsed.title, parsed.duration);
for (let i=0; i < parsed.tracks.length; i++) {
myAlbum.addTrack(parsed.tracks[i].title, parsed.tracks[i].cuePoint);
}
document.querySelector('#albumArtist').value = myAlbum.artist;
document.querySelector('#albumTitle').value = myAlbum.title;
document.querySelector('#duration').value = myAlbum.duration;
render();
}
function compareTimes(time1, time2) {
let timeList1 = time1.split(':');
let timeList2 = time2.split(':');
let timeList3 = [0,0,0];
let validTime = false;
for (let j = 0; j < timeList1.length; j++) {
if (timeList1[j] < timeList2[j]) {
validTime = true
}
}
if (!validTime) throw {name: 'InvalidTimeException', message: 'A supposedly later time cannot be lower or equal'};
for (let i = timeList1.length -1; i >= 0; i--) {
let diff = timeList2[i] - timeList1[i];
if (diff + timeList3[i] < 0) {
timeList3[i-1]--;
diff = 60 + diff
}
timeList3[i] = timeList3[i] + diff;
}
for (let k = 0; k < timeList3.length; k++) {
if (timeList3[k] < 10 && timeList3[k] > -1) {
timeList3[k] = '0' + timeList3[k];
}
}
return timeList3.join(':');
}