/**
 * @author Wouter van Wijk
 *
 * all kinds functions and vars
 */

var baseurl = '/mopidy';
var host = window.location.hostname;
var port = window.location.port;
var wsurl = host + ':' + port + baseurl
var intv;
var socket;
//var mopidy;

//values for controls
var play = false;
var random;
var repeat;
var currentVolume = -1;
var muteVolume = -1;
var posTimer;
var seekTimer;
var initgui = true;
var currentpos = 0;

var artistshtml = '';
var artiststext = '';
var songname = '';

//array of cached playlists (not only user-playlists, also search, artist, album-playlists)
var playlists = new Object;
var currentplaylist;
var customPlaylists = new Array();
var customTracklists = new Array();

//constants
PROGRAM_NAME = 'Mopidy';
ARTIST_TABLE = '#artiststable';
ALBUM_TABLE = '#albumstable';
PLAYLIST_TABLE = '#playlisttable';
CURRENT_PLAYLIST_TABLE = '#currenttable';
SEARCH_ALL_TABLE = '#allresulttable';
SEARCH_ALBUM_TABLE = '#albumresulttable';
SEARCH_ARTIST_TABLE = '#artistresulttable';
SEARCH_TRACK_TABLE = '#trackresulttable';

//A hack to find the name of the first artist of a playlist. this is not yet returned by mopidy
//does not work wel with multiple artists of course
function getArtist(pl) {
    for (var i = 0; i < pl.length; i++) {
        for (var j = 0; j < pl[i]["artists"].length; j++) {
            if (pl[i]["artists"][j]["name"] != '') {
                return pl[i]["artists"][j]["name"];
            }
        }
    };
}

//A hack to find the first album of a playlist. this is not yet returned by mopidy
function getAlbum(pl) {
    for (var i = 0; i < pl.length; i++) {
        if (pl[i]["album"]["name"] != '') {
            return pl[i]["album"]["name"];
        }
    };
}

//process updated playlist to gui
function playlisttotable(pl, table, uri) {
    /*  <tr>
     <td>Title</td>
     <td>Artist</td>
     <td>Album</td>
     <td>Length</td>
     </tr>
     */
    var tmp = '';
    $(table).empty();

    //   console.log(pl.length);
    //console.log(pl);
    for (var i = 0; i < pl.length; i++) {
        //   console.log(pl[i]);
        var child = '<tr class="resultrow"><td><a href="#" class="name" id="' + pl[i]["uri"] + '">' + pl[i]["name"] + "</a></td><td>";
        for (var j = 0; j < pl[i]["artists"].length; j++) {
            //console.log(j);
            child += '<a href="#" class="artist" id="' + pl[i]["artists"][j]["uri"] + '">' + pl[i]["artists"][j]["name"] + "</a>";
        }
        child += '</td><td><a href="#" class="album" id="' + pl[i]["album"]["uri"] + '">' + pl[i]["album"]["name"] + '</a></td><td><a href="#" class="time" id="' + pl[i]["uri"] + '">' + timeFromSeconds(pl[i]["length"] / 1000) + '</a></td></tr>';
        tmp += child;
    };
    $(table).html(tmp);
    $(table).attr('data', uri);
    //set click handlers
    $(table + ' .name').click(function() {
        return playtrack(this.id, uri)
    });
    $(table + ' .album').click(function() {
        return showalbum(this.id, uri)
    });
    $(table + ' .artist').click(function() {
        return showartist(this.id, uri)
    });
}

function getPlaylistFromUri(uri) {
/*    for (var i = 0; i < playlists.length; i++) {
        if (playlists[i]["uri"] == uri) {
            return playlists[i];
        }
    }
*/
    if (playlists[uri]) {
        return playlists[uri];
    }
    
    if(customPlaylists[uri]) {
        return customPlaylists[uri];
    }
}

function getTracksFromUri(uri) {
    var pl = getPlaylistFromUri(uri);
    console.log(pl);
    if (pl) {
        return pl.tracks;
    } else if (customTracklists[uri]) {
        return customTracklists[uri];
    }
}

//convert time to human readable format
function timeFromSeconds(length) {
    var d = Number(length);
    var h = Math.floor(d / 3600);
    var m = Math.floor(d % 3600 / 60);
    var s = Math.floor(d % 3600 % 60);
    return ((h > 0 ? h + ":" : "") + (m > 0 ? (h > 0 && m < 10 ? "0" : "") + m + ":" : "0:") + (s < 10 ? "0" : "") + s);
}