AUTOplay = {}
AUTOplay.player = null;
AUTOplay.curSong = "";
AUTOplay.dispSong = "";

// fetch the song data on startup!
window.addEventListener("DOMContentLoaded", getPageSong);


async function getPageSong()
{
	if (!document.getElementById("autoplay-text-box"))
		{ return; }
		
	let req = await fetch("musiclist.csv");
	if (!req.ok)
		{ throw new Error(`HTTP error" ${req.status}`); }
	list = await req.text();
	list = list.split('\n');
	list.shift();	// getting rid of the csv header
	
	var pgsong = "def"
	for (const line of list)
	{
		let songline = line.split(',');
		if(songline[1] === undefined)
			{ continue; }
		if(!window.location.pathname.startsWith(songline[0]))
			{ continue; }
		
		pgsong = songline[1];
	}
	if(pgsong == "def")
	{
		console.warn("No page song defined! Defaulting to relaxation");
		pgsong = "relaxation";
	}
	
	let namereq = await fetch(`audio/${pgsong}.txt`);
	if (!req.ok)
		AUTOplay.dispSong = `${pgsong}.mp3`;
	else
		AUTOplay.dispSong = await namereq.text();
	
	AUTOplay.curSong = pgsong;
	AUTOplay.player = new Audio(`audio/${pgsong}.mp3`);
	
	AUTOplay.player.addEventListener("play", playMus);
	AUTOplay.player.addEventListener("pause", stopMus);
	AUTOplay.player.play();	// will most likely fail but we tried :)
}

function playMus()
{
	document.getElementById("autoplay-text-box").style.left = "-50%";
	document.getElementById("autoplay-text-text").innerHTML = AUTOplay.dispSong;
}

function stopMus()
{
	document.getElementById("autoplay-text-box").style.left = "-90.5%";
	document.getElementById("autoplay-text-text").innerHTML = "";
}

function toggleMus()
{
	if (AUTOplay.player.paused)
		{ AUTOplay.player.play(); }
	else
		{ AUTOplay.player.pause(); }
}