// ENVIRONMENT

var global_FilesUrl;
var global_MusicLoaderUrl;
var global_HomePageUrl;

function MusicPlayerSkin_InitializeEnvironment(filesUrl, musicLoaderUrl, homePageUrl) {
    global_FilesUrl = filesUrl;
    global_MusicLoaderUrl = musicLoaderUrl;
    global_HomePageUrl = homePageUrl;
}

// PLAYER

var global_loadPercent = 0;
var global_trackIndex = -1;
var global_tracks = new Array();

$(function() {

    if (typeof(IS_MUSIC_PLAYER_SKIN) == "undefined")
        return;

    $("#jquery_jplayer").jPlayer({
        swfPath: global_FilesUrl,
        ready: function() {
            playNextTrack();
            showPauseBtn();
        }
    })
	   .onProgressChange(function(lp, ppr, ppa, pt, tt) {
	       var lpInt = parseInt(lp);
	       var ppaInt = parseInt(ppa);
	       global_loadPercent = lpInt;

	       $('#loaderBar').progressbar('option', 'value', lpInt);
	       $('#sliderPlayback').slider('option', 'value', ppaInt);
	       $('#playTimeValue').html(FormatTime(pt));
	       $('#totalTimeValue').html(FormatTime(tt));
	   })

	   .onSoundComplete(function() {
	       playNextTrack();
	   });

    $("#pause").hide();

    function playNextTrack() {
        if (global_tracks.length == 0)
            return;
        global_trackIndex++;
        if (global_trackIndex >= global_tracks.length)
            global_trackIndex = 0;
        var trackFilename = global_tracks[global_trackIndex];
        playTrack(trackFilename);
    }

    function playTrack(t) {
        $("#jquery_jplayer").setFile(t).play();
        showPauseBtn();
        return false;
    }

    function showPauseBtn() {
        $("#play").fadeOut(function() {
            $("#pause").fadeIn();
        });
    }

    function showPlayBtn() {
        $("#pause").fadeOut(function() {
            $("#play").fadeIn();
        });
    }

    $("#play").click(function() {
        $("#jquery_jplayer").play();
        showPauseBtn();
        return false;
    });

    $("#next").click(function() {
        playNextTrack();
        return false;
    });

    $("#pause").click(function() {
        $("#jquery_jplayer").pause();
        showPlayBtn();
        return false;
    });

    $("#stop").click(function() {
        $("#jquery_jplayer").stop();
        showPlayBtn();
        return false;
    });

    $("#volume-min").click(function() {
        $('#jquery_jplayer').volume(0);
        $('#sliderVolume').slider('option', 'value', 0);
        return false;
    });

    $("#volume-max").click(function() {
        $('#jquery_jplayer').volume(100);
        $('#sliderVolume').slider('option', 'value', 100);
        return false;
    });

    $('#sliderPlayback').slider({
        max: 100,
        range: 'min',
        animate: true,

        slide: function(event, ui) {
            $("#jquery_jplayer").playHead(ui.value * (100.0 / global_loadPercent));
        }
    });

    $('#sliderVolume').slider({
        value: 100,
        max: 100,
        range: 'min',
        animate: true,

        slide: function(event, ui) {
            $("#jquery_jplayer").volume(ui.value);
        }
    });
});

function AddPlaylistTrack(t) {
    global_tracks[global_tracks.length] = t;
}

// URL AND BOOKMARK HANLDING

var global_currentFrameLocation;

$(function() {
    if (typeof(IS_MUSIC_PLAYER_SKIN) == "undefined")
        return;
    var frame = document.getElementById('siteFrame');
    var anchorUrlParameter = ExtractAnchorUrlParameter(window.location.href);
    if (anchorUrlParameter != null && anchorUrlParameter != "") {
        var url = Base64Decode(anchorUrlParameter);
        //if (url.toLowerCase().indexOf('audiablevert.net') >= 0) { //TODO: external redirection protection -- hacking
        frame.contentWindow.location.href = url;
        global_currentFrameLocation = url;
        //}
    }
    else
        frame.contentWindow.location.href = global_HomePageUrl;
    setTimeout('PersistFrameLocationInUrl()', 2000);
});

function PersistFrameLocationInUrl() {
    var frame = document.getElementById('siteFrame');
    if (global_currentFrameLocation != frame.contentWindow.location.href) {
        global_currentFrameLocation = frame.contentWindow.location.href;
        var url = GetWithMusicUrl(global_currentFrameLocation);
        window.location.replace(url);
    }
    setTimeout('PersistFrameLocationInUrl()', 2000);
}


function EnsureMusic() {
    if (typeof(top.IS_MUSIC_PLAYER_SKIN) == "undefined") {
        var withMusicUrl = GetWithMusicUrl(window.location.href);
        top.location.replace(withMusicUrl);
    }
}

function GetWithMusicUrl(url) {
    return SetAnchorUrlParameter(global_MusicLoaderUrl, Base64Encode(url))
}

// GENERAL HELPERS

function ExtractAnchorUrlParameter(url) {
    index = url.indexOf("#");
    if (index < 0)
        return "";
    return url.substring(index + 1, url.length);
}

function SetAnchorUrlParameter(url, anchor) {
    index = url.indexOf("#");
    if (index < 0)
        index = url.length;
    return url.substring(0, index) + "#" + anchor;
}

function FormatTime(value) {
    var minutes = Math.round(value / 1000 / 60);
    var seconds = Math.round(value / 1000 % 60);
    return minutes + ":" + (seconds < 10 ? "0" : "") + seconds;
}
// IFRAME 100%

function resize_iframe()
{
    var height = window.innerWidth; // FF	
    if (document.body.clientHeight) 
        height = document.body.clientHeight; // IE
    document.getElementById("siteFrame").style.height = parseInt(height - document.getElementById("siteFrame").offsetTop - 34) + "px";
}

window.onresize = resize_iframe;

$(function() {
    resize_iframe();   
});




// BASE 64 HELPERS

var keyString = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function Base64Encode(input) {
    var output = "";
    var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
    var i = 0;
    while (i < input.length) {
        chr1 = input.charCodeAt(i++);
        chr2 = input.charCodeAt(i++);
        chr3 = input.charCodeAt(i++);
        enc1 = chr1 >> 2;
        enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
        enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
        enc4 = chr3 & 63;
        if (isNaN(chr2)) {
            enc3 = enc4 = 64;
        } else if (isNaN(chr3)) {
            enc4 = 64;
        }
        output = output + keyString.charAt(enc1) + keyString.charAt(enc2) + keyString.charAt(enc3) + keyString.charAt(enc4);
    }
    return output;
}
function Base64Decode(input) {
    var output = "";
    var chr1, chr2, chr3;
    var enc1, enc2, enc3, enc4;
    var i = 0;
    input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
    while (i < input.length) {
        enc1 = keyString.indexOf(input.charAt(i++));
        enc2 = keyString.indexOf(input.charAt(i++));
        enc3 = keyString.indexOf(input.charAt(i++));
        enc4 = keyString.indexOf(input.charAt(i++));
        chr1 = (enc1 << 2) | (enc2 >> 4);
        chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
        chr3 = ((enc3 & 3) << 6) | enc4;
        output = output + String.fromCharCode(chr1);
        if (enc3 != 64) {
            output = output + String.fromCharCode(chr2);
        }
        if (enc4 != 64) {
            output = output + String.fromCharCode(chr3);
        }
    }
    return output;
}