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index.js
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index.js
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const prevButton = document.getElementById("prev");
const nextButton = document.getElementById("next");
const repeatButton = document.getElementById("repeat");
const shuffleButton = document.getElementById("shuffle");
const audio = document.getElementById("audio");
const songImage = document.getElementById("song-image");
const songName = document.getElementById("song-name");
const songArtist = document.getElementById("song-artist");
const pauseButton = document.getElementById("pause");
const playButton = document.getElementById("play");
const playlistButton = document.getElementById("playlist");
const maxDuration = document.getElementById("max-duration");
const currentTimeRef = document.getElementById("current-time");
const progressBar = document.getElementById("progress-bar");
const playlistContainer = document.getElementById("playlist-container");
const closeButton = document.getElementById("close-button");
const playlistSongs = document.getElementById("playlist-songs");
const currentProgress = document.getElementById("current-progress");
//index for songs
let index;
//initially loop=true
let loop = true;
//events object
let events = {
mouse: {
click: "click",
},
touch: {
click: "touchstart",
},
};
let deviceType = "";
//Detect touch device
const isTouchDevice = () => {
try {
//We try to create TouchEvent(it would fail for desktops and throw error)
document.createEvent("TouchEvent");
deviceType = "touch";
return true;
} catch (e) {
deviceType = "mouse";
return false;
}
};
//Format time (convert ms to seconds, minutes and add 0 id less than 10)
const timeFormatter = (timeInput) => {
let minute = Math.floor(timeInput / 60);
minute = minute < 10 ? "0" + minute : minute;
let second = Math.floor(timeInput % 60);
second = second < 10 ? "0" + second : second;
return `${minute}:${second}`;
};
//set song
const setSong = (arrayIndex) => {
//this extracts all the variables from the object
let { name, src, artist, img } = songsList[arrayIndex];
try {
audio.src = 'https://colddb.netlify.app/audio/' + src + ".mp3";
songImage.src = 'https://colddb.netlify.app/images/' + img + '.jpg';
} catch(err) {
console.log(err);
}
songName.innerHTML = name;
songArtist.innerHTML = artist;
//display duration when metadata loads
audio.onloadedmetadata = () => {
maxDuration.innerText = timeFormatter(audio.duration);
};
};
//play song
const playAudio = () => {
audio.play();
pauseButton.classList.remove("hide");
playButton.classList.add("hide");
};
//repeat button
repeatButton.addEventListener("click", () => {
if (repeatButton.classList.contains("active")) {
repeatButton.classList.remove("active");
audio.loop = false;
console.log("repeat off");
} else {
repeatButton.classList.add("active");
audio.loop = true;
console.log("repeat on");
}
});
//Next song
const nextSong = () => {
//if loop is true then continue in normal order
if (loop) {
if (index == songsList.length - 1) {
//If last song is being played
index = 0;
} else {
index += 1;
}
setSong(index);
playAudio();
} else {
//else find a random index and play that song
let randIndex = Math.floor(Math.random() * songsList.length);
console.log(randIndex);
setSong(randIndex);
playAudio();
}
};
//pause song
const pauseAudio = () => {
audio.pause();
pauseButton.classList.add("hide");
playButton.classList.remove("hide");
};
//previous song ( you can't go back to a randomly played song)
const previousSong = () => {
if (index > 0) {
pauseAudio();
index -= 1;
} else {
//if first song is being played
index = songsList.length - 1;
}
setSong(index);
playAudio();
};
//next song when current song ends
audio.onended = () => {
nextSong();
};
//Shuffle songs
shuffleButton.addEventListener("click", () => {
if (shuffleButton.classList.contains("active")) {
shuffleButton.classList.remove("active");
loop = true;
console.log("shuffle off");
} else {
shuffleButton.classList.add("active");
loop = false;
console.log("shuffle on");
}
});
//play button
playButton.addEventListener("click", playAudio);
//next button
nextButton.addEventListener("click", nextSong);
//pause button
pauseButton.addEventListener("click", pauseAudio);
//prev button
prevButton.addEventListener("click", previousSong);
//if user clicks on progress bar
isTouchDevice();
progressBar.addEventListener(events[deviceType].click, (event) => {
//start of progressBar
let coordStart = progressBar.getBoundingClientRect().left;
//mouse click position
let coordEnd = !isTouchDevice() ? event.clientX : event.touches[0].clientX;
let progress = (coordEnd - coordStart) / progressBar.offsetWidth;
//set width to progress
currentProgress.style.width = progress * 100 + "%";
//set time
audio.currentTime = progress * audio.duration;
//play
audio.play();
pauseButton.classList.remove("hide");
playButton.classList.add("hide");
});
//update progress every second
setInterval(() => {
currentTimeRef.innerHTML = timeFormatter(audio.currentTime);
currentProgress.style.width =
(audio.currentTime / audio.duration.toFixed(3)) * 100 + "%";
});
//update time
audio.addEventListener("timeupdate", () => {
currentTimeRef.innerText = timeFormatter(audio.currentTime);
});
//Creates playlist
const initializePlaylist = () => {
for (let i in songsList) {
playlistSongs.innerHTML += `<li class='playlistSong' onclick='setSong(${i})'>
<div class="playlist-image-container">
<img src="https://colddb.netlify.app/images/${songsList[i].img}.jpg" />
</div>
<div class="playlist-song-details">
<span id="playlist-song-name">
${songsList[i].name}
</span>
<span id="playlist-song-artist-album">
${songsList[i].artist}
</span>
</div>
</li>`;
}
};
//display playlist
playlistButton.addEventListener("click", () => {
playlistContainer.classList.remove("hide");
});
//hide playlist
closeButton.addEventListener("click", () => {
playlistContainer.classList.add("hide");
});
window.onload = () => {
//initially first song
index = 0;
setSong(index);
//create playlist
initializePlaylist();
};