var playing = false;
var audie = new Audio();

function addListeners()
{
    audie.addEventListener("loadedmetadata", timeLeft);
    //timeTotal();
    audie.addEVentListener("loadedmetadata", timeTotal;
    //volumeBar.addEventListener("change", )
    document.getElementById("playButton").addEventListener("click", playAudio);
    document.getElementById("stopButton").addEventListener("click", stopAudio);
    document.getElementById("pauseButton").addEventListener("click", pauseAudio);
    document.getElementById("addButton").addEventListener("click", addVolume);
    document.getElementById("subtractButton").addEventListener("click", subtractVolume);
    document.getElementById("playList").addEventListener("change", changeAudio);
}

function changeAudio(event)
{
    if (playing === true)
    {
        stopAudio();
    }
    document.getElementById("currentSong").innerHTML = event.target.value;
    songChoice = "public/Music/" + event.target.value;
    audie.src = songChoice;
    playAudio();
}

function playAudio()
{
    if (playing === false)
    {
        audie.play();
        playing = true;
    }
    else if (playing === true)
    {
        audie.pause();
        playing = false;
    }
}
function stopAudio()
{
    audie.pause();
    audie.currentTime = 0;
    playing = false;
}
function pauseAudio()
{
    audie.pause();
    playing = false;
}
function addVolume()
{
    audie.volume = audie.volume + 0.1;
}
function subtractVolume()
{
    audie.volume = audie.volume - 0.1;
}
function timeTotal()
{
    var hour = Math.floor(audie.duration/3600);
    var minute = Math.floor(audie.duration/60 - hour*60);
    var second = Math.floor(audie.duration- hour*3600 - minute*60);

    if (hour < 10)
        hour = "0" + hour;
    if (minute < 10)
        minute = "0" + minute;
    if (second < 10)
        second = "0" + second;
    document.getElementById("timeTotal").innerHTML = hour + ":" + minute + ":" + second;
}
function timeLeft()
{
    var hour = Math.floor(audie.currentTime/3600);
    var minute = Math.floor(audie.currentTime/60 - hour*60);
    var second = Math.floor(audie.currentTime - hour*3600 - minute*60);

    if (hour < 10)
        hour = "0" + hour;
    if (minute < 10)
        minute = "0" + minute;
    if (second < 10)
        second = "0" + second;
    document.getElementById("timeLeft").innerHTML = hour + ":" + minute + ":" + second;
    setTimeout(timeLeft, 1000); //Kutsuu funktiota timeLeft 1000 ms välein
}