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import { DeckButton } from './deck-button.js';
const urlParams = new URLSearchParams(window.location.search);
const currentSide = urlParams.get("side");
const Cassette = new Audio(`audio/2019-mix-side-${currentSide}.mp3`);
const ffSound = new Audio("audio/ff.mp3");
let TapeDeck = {
elem: document.getElementById("tape-deck"),
notes: document.getElementById("notes"),
trackData: [],
currentTrackIndex: 0,
hasStarted: false,
isPlaying: false,
images: { stop: "images/cool-deck.png", go: "images/cool-deck.gif" },
initSound: new Audio("audio/tape-start.mp3"),
playButton: DeckButton("play"),
ffButton: DeckButton("ff"),
rewindButton: DeckButton("rewind"),
go: function () {
this.elem.src = this.images.go;
this.isPlaying = true;
},
start: function () {
this.hasStarted = true;
this.initSound.onended = (event) => { Cassette.play(); };
this.initSound.play();
this.go();
},
pause: function () {
this.playButton.toggle();
Cassette.pause();
this.elem.src = this.images.stop;
this.isPlaying = false;
},
resume: function () {
this.go();
Cassette.play();
},
};
ffSound.onended = (event) => {
if (TapeDeck.ffButton.state() === "on") {
TapeDeck.ffButton.toggle();
} else {
TapeDeck.rewindButton.toggle();
}
TapeDeck.playButton.toggle({sound: false});
TapeDeck.resume();
};
// button onclick points here
window.play = function () {
if (TapeDeck.isPlaying) { TapeDeck.pause(); return; }
// figure out better way of handling play button
TapeDeck.playButton.toggle();
TapeDeck.hasStarted ? TapeDeck.resume() : TapeDeck.start();
}
window.ff = function () {
if (TapeDeck.isPlaying) TapeDeck.pause();
TapeDeck.ffButton.toggle();
Cassette.currentTime = Cassette.currentTime + 20;
ffSound.play();
}
window.rewind = function () {
if (TapeDeck.isPlaying) TapeDeck.pause();
TapeDeck.rewindButton.toggle();
Cassette.currentTime = Cassette.currentTime - 20;
ffSound.play();
}
window.reset = function () {
Cassette.currentTime = 0;
}
function isLastTrack(current, tracks) {
return current + 1 === tracks.length;
}
function getTrack(time) {
const { currentTrackIndex, trackData } = TapeDeck;
const nextIndex = currentTrackIndex + 1;
const startTimes = trackData.map( t => t.start );
if (isLastTrack(currentTrackIndex, startTimes)) {
return trackData[trackData.length - 1];
} else {
if (time >= startTimes[nextIndex]) {
TapeDeck.currentTrackIndex = nextIndex;
}
return trackData[currentTrackIndex];
}
}
function formatTrackData(track) {
let string = `${track.title} - ${track.artist}`;
if (track.album) {
string = string.concat(` - ${track.album}`);
}
if (track.link) {
string = string.concat(` - ${track.link}`);
}
return string;
}
function loadTrackData() {
fetch(`side${currentSide}.json`)
.then(response => response.json())
.then((data) => {
TapeDeck.trackData = data;
});
}
function resumeMaybe() {
if (localStorage.getItem(currentSide)) {
Cassette.currentTime = localStorage.getItem(currentSide);
}
}
loadTrackData();
resumeMaybe();
Cassette.addEventListener("timeupdate", (event) => {
const time = Cassette.currentTime;
const currentTrack = getTrack(time);
localStorage.setItem(currentSide, time);
if (!currentTrack) return;
TapeDeck.notes.textContent = formatTrackData(currentTrack);
});
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