/*******************************************************
 * HTML-Tracklist:
 * Quelle: https://github.com/twonky4/ioBroker.spotify-premium/wiki/Html-Tracklist
 * https://forum.iobroker.net/viewtopic.php?p=151165#p151165
 ******************************************************/
const STATE_PATH = 'javascript.'+ instance + '.' + 'spotify.spotify-support.';
 
createState(STATE_PATH + 'trackListHtml', '', false);
 
function refreshTrackList() {
	var current = getState('spotify-premium.0.player.playlist.trackList').val;
	var source = getState('spotify-premium.0.player.playlist.trackListArray').val;
 
	var html = '<table class="tracklistList">';
    	for (var i = 0; i < source.length; i++) {
    		html += '<tr onclick="vis.setValue(\'spotify-premium.0.player.playlist.trackNo\', ' + i +');">';
        		html += '<td>';
        			/********************************************************************
        			 * Hier muss man dem aktuellen Track und/oder Artist eine ID vergeben
        			 ********************************************************************/ 
            		var currentSong = (current == i) ? ' id="currentSong"' : '';
            		var currentArtist = (current == i) ? ' id="currentArtist"' : '';
            		if(current == i) html += '<div style="position:absolute;left:0px;width:40px;height:40px; padding-top:7px;"><img style="width:100%;" src="/vis.0/home1/img2/speaker.png"></div>';
            		html += '<div class="spotify-tracklist-title"' + currentSong + '>' + source[i].title + '</div>';
                    html += '<div class="spotify-tracklist-artist"' + currentArtist + '>' + source[i].artistName + '</div>';
                    /********************************************************************/
                    //log(source[i].artist); // (sollten alle Artisten auflisten in der Log-Ausgabe)
        		html += '</td>';
    		html += '</tr>';
    	}
	html += '</table>';
	
	/***************************************************************************************************
	 * Script für automatisches Scrollen des aktuellen Titels 
	 * https://forum.iobroker.net/viewtopic.php?f=30&t=18222&p=190991&hilit=javascript+experten#p190365
	****************************************************************************************************/
    html += '<script>';
	    html += 'var el = document.getElementById("currentSong");'; // ID von dem aktuellen DIV in der TABLE oben
	    html += "el.scrollIntoView(true);"; //true = Position oben / false = Position unten (Achtung hier Id:currentArtist angeben)
	html += '</script>';
	/***************************************************************************************************/
 
	setState(STATE_PATH + 'trackListHtml', html, true);
}
 
on('spotify-premium.0.player.playlist.trackList', refreshTrackList);
on('spotify-premium.0.player.playlist.trackListArray', refreshTrackList);
 
refreshTrackList();