!function($, window, document, _undefined)
{
"use strict";

XF.RemoveLink = XF.Event.newHandler({
eventNameSpace: 'XFRemoveClick',

options: {
user: null,
href: null
},

loading: false,
container: null,
noResults: null,
count: 0,

init: function()
{
if (!this.options.href)
{
this.options.href = $(this.$target).attr('href');
}

if (this.options.user === null || this.options.href === null)
{
console.warn('Link found without userId or url defined. %o', this.$target);
return false;
}

this.container = $('#user_list_' + this.options.user);
this.noResults = $('.js-userListEmpty');
this.count = $('.user-link').length;
},

click: function(e)
{
e.preventDefault();

if (this.loading)
{
return;
}

this.remove();
},

remove: function()
{
this.loading = true;

var t = this;
XF.ajax(
'post',
this.options.href,
{ user_id: this.options.user },
function()
{
t.container.remove();
t.count--;

if (t.count < 1)
{
t.noResults.removeClass('u-hidden');
}
},
{ skipDefault: true }
).always(function()
{
t.loading = false;
});
}
});

XF.AddForm = XF.Element.newHandler({
options: {},

form: null,
userInput: null,
noResults: null,

init: function()
{
this.form = $(this.$target);
this.form.on('ajax-submit:complete', XF.proxy(this, 'formSubmit'));

this.userInput = this.form.find('.users');
this.noResults = this.form.find('.js-userListEmpty');
},

formSubmit: function (e, data)
{
e.preventDefault();

if (data.status === 'error')
{
return;
}

var userIds = data.userIds,
lastId = null,
templateHtml = null,
i = 0,
t = this;

this.userInput.val('').autofocus();

for (i = 0; i < userIds.length; i++)
{
if (this.form.find('#user_list_' + userIds[i]).length == 0)
{
// this user is not already shown, so insert the template here
templateHtml = $(data.users[userIds[i]]);

if (lastId)
{
XF.setupHtmlInsert(templateHtml, function($html, container, onComplete)
{
$html.appendTo('.user-list');
});
}
else
{
XF.setupHtmlInsert(templateHtml, function($html, container, onComplete)
{
$html.prependTo('.user-list');
});
}

if ($('.user-link').length > 0)
{
t.noResults.addClass('u-hidden');
}
}

lastId = '#user_list_' + userIds[i];
}
}
});

XF.Event.register('click', 'remove-user', 'XF.RemoveLink');
XF.Element.register('add-user', 'XF.AddForm');
}
(jQuery, window, document);