var BOSH_SERVICE = 'http://alias.fr.nf/http-bind';
var connection = null;

jQuery.expr[':'].Contains = function(a,i,m){
    return jQuery(a).text().toUpperCase().indexOf(m[3].toUpperCase())>=0;
};

function log(msg, color)
{
    $('#log').append($('<div></div>').css('background-color', color).text(msg));
}

function rawInput(data)
{
    log('RECV: ' + data, '#FBB6B4');
}

function rawOutput(data)
{
    log('SENT: ' + data, '#B5BBFB');
}

function getRoster()
{
    var roster = $iq({type : 'get'}).c('query', {xmlns : Strophe.NS.ROSTER});
    connection.sendIQ(roster, onRoster);
}

function getPresence(contact)
{
    if ( contact.hasClass("online") )
        return 2;
    else if ( contact.hasClass("away") )
        return 1;
    else
        return 0;
}

function jid_to_id(jid) {
    return Strophe.getBareJidFromJid(jid).replace(/[@.]/g,'-');
}

function getJID(contact)
{
    return contact.find('.roster-jid').text();
}

function insertContact(contact)
{
    var presence = getPresence(contact);
    var jid = getJID(contact);
    var contacts = $('#roster li');
    if (contacts.length > 0) {
        var inserted = false;
        contacts.each(function () {
            var locpres = getPresence($(this));
            var locjid = getJID($(this));
            if (presence > locpres)
            {
                $(this).before(contact);
                inserted = true;
                return false;
            }
            else if ( (presence == locpres) && (jid < locjid) )
            {
                $(this).before(contact);
                inserted = true;
                return false;
            }
        });

        if (!inserted) 
            $('#roster ul').append(contact);
    }
    else
        $('#roster ul').append(contact);
}

function onPresence(presence)
{
    var who = $(presence).attr('from');
    var type = $(presence).attr('type');
    if (type !== 'error')
    {
        var contact = $('#'+jid_to_id(who));
        contact.removeClass('online away offline');
        if (type === 'unavailable')
        {
            contact.addClass('offline');
        }
        else
        {
            var show = $(presence).find('show').text();
            if (show === '' || show === '')
            {
                contact.addClass('online');
            }
            else
            {
                contact.addClass('away');
            }
        }
        contact.remove();
        insertContact(contact);
    }
    return true;
}

function onRoster(iq)
{
    $('#roster li').remove();
    var elems = iq.getElementsByTagName('query');
    var query = elems[0];
    Strophe.forEachChild(query, 'item', function(item)
    {
        var jid = item.getAttribute('jid');
        var name = item.getAttribute('name') || jid;
        var id = jid_to_id(jid);
        var contact = $("<li id='" + id + "' class='roster-contact offline'>"
                        + "<div class='roster-name'>" + name + "</div>"
                        + "<div class='roster-jid'>" + jid + "</div></li>");
        insertContact(contact);
    });
    connection.addHandler(onPresence,null,'presence', null, null, null, null);
    connection.send($pres());
    return true;
}

function onConnect(status)
{
    var jid = $('#jid').get(0).value;
    if ( status == Strophe.Status.CONNECTING )
    {
        log('Strophe is connecting.');
    } else if ( status == Strophe.Status.CONNFAIL )
    {
        log('Strophe failed to connect.');
    } else if ( status == Strophe.Status.DISCONNECTING )
    {
        log('Strophe is disconnecting.');
    } else if ( status == Strophe.Status.DISCONNECTED )
    {
        log('Strophe is disconnected.');
    } else if ( status == Strophe.Status.CONNECTED )
    {
        log('Strophe is connected.');
        getRoster();
        $('#password').val('');
        $('#login').dialog('close');
        $('#status').append($('<a href="#" id="connect">Disconnect</a>'));
        $('#connect').click(function(){
            connection.disconnect();
            $('#roster ul').empty();
            $('#login').dialog('open');
            $(this).remove();
         });
    }
}

$(document).ready(function(){
   connection = new Strophe.Connection(BOSH_SERVICE);
   connection.rawInput = rawInput;
   connection.rawOutput = rawOutput;

   $('#login').dialog({
       autoOpen: true,
       modal: true,
       title: 'Connect',
       buttons: { 
           'Connect' : function () {
               connection.connect($('#jid').get(0).value,
                                  $('#pass').get(0).value,
                                  onConnect);}
       }
   });
   
   $('#bottomup').click(function(){
       $(this).next().slideToggle();
   });
   
   $('#rosterfilter').keyup(function() {
       var filter = $(this).val();
       $('#roster ul li div.roster-name:not(:Contains("' + filter + '"))').parent().hide();
       $('#roster ul li div.roster-name:Contains("' + filter + '")').parent().show();
   });
});