var videoID = '';   // video we are playing
var startSec = 0;   // starting from this second
var endSec = 0;     // ending at this second
var currSec = 0;
var repeat_url = '';

var player = null;  // player object


// YOUTUBE PLAYER EVENTS START
// YOUTUBE PLAYER EVENTS START

function onPlayerReady(event)
{
    player = event.target;
    seekTo(startSec);
    play();
    setInterval(updateYTInfo, 250);
}

function onPlayerStateChange(event)
{
    var newState = event.data;
    if (newState == 0) {
        // finished playing one song - go to the next one (if possible)
        rePlay();
    }
    else if (newState == 1) {
        // started playing
        if (inside_play_button == true)
            updateImage('btnPlay', 'btn_pause_red.gif');
        else
            updateImage('btnPlay', 'btn_pause_grey.gif');
        gaEvent('Play');
    }
    else if (newState == 2 || newState == 5) {
        // paused or stopped
        if (inside_play_button == true)
            updateImage('btnPlay', 'btn_play_red.gif');
        else
            updateImage('btnPlay', 'btn_play_grey.gif');
        gaEvent('Pause');
    }
}

function onPlayerError(event)
{
    errorCode = event.data;
    gaEvent('Error' + errorCode);
    if (errorCode == 100) {
        alert("The video cannot play.  Please try again or go directly to YouTube.com");
    }
    else if (errorCode == 101 || errorCode == 150) {
        // alert("The author of this video did not allow it to be embedded outside of YouTube.com");
    }
    else {
        alert("Unknown Youtube error: " + errorCode);
    }
}

// YOUTUBE PLAYER EVENTS END
// YOUTUBE PLAYER EVENTS END

// YOUTUBE PLAYER FUNCTIONS START
// YOUTUBE PLAYER FUNCTIONS START

function play ()    { if (player) player.playVideo(); }
function pause()    { if (player) player.pauseVideo(); }
function stop()     { if (player) player.stopVideo(); }

function mute()     { if (player) player.mute(); }
function unMute()   { if (player) player.unMute(); }
function isMuted()  { if (player) return player.isMuted(); else return true; }
function getVolume()    { if (player) return player.getVolume(); else return 0; }
function setVolume(v)   { if (player) player.setVolume(v); }

function setPlayerSize(w, h)    { if (player) player.setSize(w, h); }

// -1 – unstarted, 0 – ended, 1 – playing, 2 – paused, 3 – buffering, 5 – video cued
function getPlayerState()       { if (player) try { return player.getPlayerState(); } catch (err) { }; return -1; }
function getDuration()          { if (getPlayerState() != -1) return player.getDuration(); else return -1; }
function getCurrentTime()       { if (getPlayerState() != -1) return player.getCurrentTime(); else return 0; }
function getCurrentTimeStr()    { return formatTimeStr(getCurrentTime()); }

// small: (320x240),  medium: (640x360, 480x360)  large: (853x480, 640x480),  hd720:  (1280x720, 960x720),  hd1080: (1920x1080, 1440x1080),  highres: (> 1920x1080)
function getPlaybackQuality()  { if (player) return player.getPlaybackQuality(); else return '';  }
function setPlaybackQuality(q) { if (player) player.setPlaybackQuality(q); } // string param
function getAvailQualities()   { if (player) return player.getAvailableQualityLevels(); else return ''; } // returns Array of strings

function seekTo(seconds)    { if (player) player.seekTo(seconds, true); }

// YOUTUBE PLAYER FUNCTIONS END
// YOUTUBE PLAYER FUNCTIONS END

// UPDATE / REPLAY START
// UPDATE / REPLAY START

function updateYTInfo () 
{
    getWidthAndHeight(); // WW & HH
  
    // time
    var c = getCurrentTime();
    var t = getDuration();
    if (c <= 0 || t <= 0)
    {
        if (WW < 160) updateHTML('time', '...');
        else updateHTML('time', 'loading');
    }
    else
    {
        if (WW < 160) updateHTML('time', formatTimeStr(c));
        else 
        {
            if (startSec <= 0 && (endSec <= 0 || endSec >= t)) updateHTML('time', formatTimeStr(c) + ' / ' + formatTimeStr(t));
            else updateHTML('time', formatTimeStr(c) + ' / ' + formatTimeStr(startSec) + '-' + formatTimeStr(endSec));
        }
    }
  
    // hq
    if (inside_hq_button == false)
    {
        if (isHQAvail())
        {
            if (isHQPlaying()) updateImage('btnHQ', 'btn_hq_red.gif');
            else updateImage('btnHQ', 'btn_hq_grey.gif');
        }
        else updateImage('btnHQ', 'btn_hq_dis.gif');
    }
  
    // volume
    var vn = getVolume0to4();
    if (inside_volume) updateVolumeImage(vn, 'red');
    else updateVolumeImage(vn, 'grey');
  
    // rewind if playing outside of our range?
    if (endSec > 4 && endSec < t && c >= endSec && getPlayerState() == 1)
    {
        rePlay();
    }
}

function formatTimeStr (total_secs)
{ 
    var m = parseInt (total_secs / 60);
    var s = parseInt (total_secs - m * 60);
    if (s < 10) return m + ':0' + s;
    else return m + ':' + s;
}

var replayStartedTime = 0;
function rePlay()
{
    if (player)
    {
        pause();
        seekTo(startSec);
        play();
        replayStartedTime = getCurrentTime();
        setTimeout('rePlayTimer()',2000);
        httpPostRepeat(); // post before next play in case of a msg
        gaEvent('Repeat');
    }
    else
    {
        alert ('player did not initialize');
    }
}

function rePlayTimer() 
{
    if (replayStartedTime == getCurrentTime())
    {
        stop();
        seekTo(startSec);
        play();
    }
}

// UPDATE / REPLAY END
// UPDATE / REPLAY END

// POSTING START
// POSTING START

var ok_to_post = true;
function setOkToPost() { ok_to_post = true; }
function httpPostRepeat() 
{
    if (!ok_to_post) return;
    var RR1 = createHttpPostRepeat();
    if (RR1 != null)
    {
        RR1.onreadystatechange = function() 
        {
            if (RR1.readyState == 4) 
            {
                HandleOurPostMsg(RR1);
            }
        }
        RR1.send('m='+repeat_mini+'&v='+videoID+'&s='+startSec+'&e='+endSec+'&w='+WW+'&h='+HH);
    }
    // next post at least in 1 minute or half of the video duration
    ok_to_post = false;
    var t = Math.max(60,getDuration()/2);
    setTimeout ('setOkToPost()', t*1000);
}

function createHttpPostRepeat()    
{
    var req = null;
    try 
    {
        var timed_url = repeat_url + "?time=" + (new Date()).getTime();
        if (window.XMLHttpRequest) req = new XMLHttpRequest();
        else if (window.ActiveXObject) req = new ActiveXObject("Microsoft.XMLHTTP");
        req.open('POST', timed_url, true);
        req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    }
    catch (err) { req = null; }
    return req;
}

// handle if there's a message in response
function HandleOurPostMsg(RR1)
{
    // check if there's a message for better video
    var s = RR1.responseText;
    var sMsg = GetMyParam(s,'msg');
    var sURL = GetMyParam(s,'url');
    var sID  = GetMyParam(s,'id');
    var sNew = GetMyParam(s,'new');
    // alert ('s=' + s + '\r\nmsg=' + sMsg + '\r\nurl=' + sURL + '\r\nid=' + sID + '\r\nnew=' + sNew);
    if (sMsg != '')
    {
        // show alert or confirm, go to new url if needed
        pause();
        var c = 0;
        try // if this fails, we still need to update server not to send anymore messages
        {
            if (sURL != '') 
            {
                self.focus();
                c = confirm(sMsg);
                if (c)
                {
                    if (sNew == '1') window.open(sURL, "_blank", "menubar=1,toolbar=1,location=1,scrollbars=1,status=1,directories=1,resizable=1");
                    else window.location = sURL;
                }
            }
            else alert (sMsg);
        }
        catch (err) { }
        if (!c) play(); // if we did not load another video, start repeating this one again
        // update our server with the answer
        var RR2 = createHttpPostRepeat();
        RR2.onreadystatechange = function() { } // nothing
        RR2.send('id='+sID+'confirm='+Number(c));
    }
}

function GetMyParam(s,pName) // get a param from our response
{
    var i1 = s.indexOf('<'  + pName + '>');
    if (i1 >= 0)
    {
        i1 += pName.length+2;
        var i2 = s.indexOf('</' + pName + '>');
        if (i2 > i1) return s.substring (i1, i2);
    }
    return '';
}

// POSTING END
// POSTING END

// MINI PLAYER HELPERS START
// MINI PLAYER HELPERS START

function isHQAvail()
{
    try {
        var s = getAvailQualities().toString();
        if (s.indexOf('large') >= 0) return true;
    } catch (err) { }
    return false;
}

function isHQPlaying()
{
    try {
        var s = getPlaybackQuality();
        if (s.indexOf('large') >= 0 || s.indexOf('hd720') >= 0) return true;
    } catch (err) { }
    return false;
}

function getVolume0to4()
{
    if (isMuted()) return 0;
    var v = getVolume();
    if (v <= 0) return 0;
    else if (v < 25) return 1;
    else if (v < 50) return 2;
    else if (v < 75) return 3;
    else return 4;
}

function updateVolumeImage(vn, red_grey)
{
    updateImage ('btnVol', 'btn_vol_' + red_grey + vn + '.gif');
}

function isVolumeBarVisible()
{
    var vol = document.getElementById('popup_vol');
    if (vol == null) return false;
    if (vol.style.visibility == 'visible') return true;
    return false;
}

function showVolumeBar(b)
{
    var vol = document.getElementById('popup_vol');
    if (b == true) vol.style.visibility = 'visible';
    else vol.style.visibility = 'hidden';
}

// MINI PLAYER HELPERS END
// MINI PLAYER HELPERS END

// MINI PLAYER CONTROLS START
// MINI PLAYER CONTROLS START

var inside_play_button = false;
function onPlayHover()
{
    inside_play_button = true;
    if (getPlayerState() == 1) updateImage ('btnPlay', 'btn_pause_red.gif');
    else updateImage ('btnPlay', 'btn_play_red.gif');
}

function onPlayOut()
{
    inside_play_button = false;
    if (getPlayerState() == 1) updateImage ('btnPlay', 'btn_pause_grey.gif');
    else updateImage ('btnPlay', 'btn_play_grey.gif');
}

function onPlayClick()
{
    if (getPlayerState() == 1) pause ();
    else 
    {
        if (opener && opener.closed == false) 
        {
            try { opener.pause(); } catch (err) { }
        }
        play ();
    }
    return false;
}

function onTimeHover() {  }
function onTimeOut() {  }
function onTimeClick() { return false; }

var inside_hq_button = false;
function onHQHover() 
{
    inside_hq_button = true;
    if (isHQAvail())
    {
        if (isHQPlaying()) updateImage ('btnHQ', 'btn_hq_grey.gif');
        else updateImage ('btnHQ', 'btn_hq_red.gif');
    }
}
function onHQOut()
{
    inside_hq_button = false;
    if (isHQAvail())
    {
        if (isHQPlaying()) updateImage ('btnHQ', 'btn_hq_red.gif');
        else updateImage ('btnHQ', 'btn_hq_grey.gif');
    }
}
function onHQClick() 
{  
    if (isHQAvail())
    {
        if (isHQPlaying()) 
        {
            setPlaybackQuality('medium');
        }
        else 
        {
            // if large is avail - use it, if not - use hd720
            var s = getAvailQualities().toString();
            if (s.indexOf('large') >= 0) setPlaybackQuality('large');
            else if (s.indexOf('hd720') >= 0) setPlaybackQuality('hd720');
        }
    }
    return false;
}

var inside_volume = false;
var delay_hide = null;
function delayHideVolume()
{
    inside_volume = false;
    showVolumeBar(false);
    updateVolumeImage (getVolume0to4(), 'grey');
};
function onVolHover() 
{
    inside_volume = true;
    clearTimeout(delay_hide);
    updateVolumeImage (getVolume0to4(), 'red');
    showVolumeBar(true);
}
function onVolOut()   
{
    delay_hide = setTimeout('delayHideVolume()', 200);
}
function onVolClick() 
{
    if (isMuted()) unMute ();
    else mute();
    return false;
}
function onVolBarHover()
{
    inside_volume = true;
    clearTimeout(delay_hide);
}
function onVolBarOut()
{
    delay_hide = setTimeout('delayHideVolume()', 200);
}

// MINI PLAYER CONTROLS END
// MINI PLAYER CONTROLS END

// GENERAL START
// GENERAL START

// google analytics event
function gaEvent(s) {
    try {
        pageTracker._trackEvent(s, videoID);
    }
    catch (err) { }
}

// get window width & height
var WW = 0;
var HH = 0;
function getWidthAndHeight() {
    // diff browsers have diff ways... 
    if (typeof (window.innerWidth) == 'number') {
        // firefox & opera work very nice
        WW = window.innerWidth;
        HH = window.innerHeight;
    }
    else if (document.documentElement) {
        // IE 6+
        WW = document.documentElement.clientWidth;
        HH = document.documentElement.clientHeight;
    }
    else {
        WW = document.body.clientWidth;
        HH = document.body.clientHeight;
    }
    if (typeof (WW) != 'number') WW = 0;
    if (typeof (HH) != 'number') HH = 0;
}

function updateHTML(elmId, value) {
    var o = document.getElementById(elmId);
    if (o) o.innerHTML = value;
}

function updateImage(elmId, imgName) {
    var o = document.getElementById(elmId);
    if (o) o.src = 'images/' + imgName;
}

// GENERAL END
// GENERAL END