var App_Cart_Small = {
    _options: {},
    _containerId: 'quick-shopping-cart-container',
    _container: null,
    _qtyContainerId: 'header-cart-item-count',
    _qtyContainerTextId: 'header-cart-item-count-text',
    _loaded: false,

    init: function(options)
    {
        $.extend(this._options, options);
        this._container = $('#' + this._containerId);

        var obj = this;
        $(this._options.selector).hover(function () {
            if (!$(obj._container).html()) {
                obj.reset();
            }
            obj._loadCart();
        });
        this._initGtm();
    },

    _loadCart: function()
    {
        if (this._loaded) {
            return;
        }

        this._loaded = true;

        var obj = this;
        var list = '';
        $.ajax({
            url: obj._options.url,
            data: {action: 'getListHtml'},
            type: 'GET',
            dataType: 'jsonp'
        }).fail(function (status) {
            obj._loaded = false;
        }).done(function (json) {
            if (json.success == true) {
                obj._container.html(json.html);
                obj._initGtm();
            } else {
                obj._loaded = false;
            }
        });
    },

    _initGtm: function ()
    {
        if (!this._options.hasGtm) {
            return;
        }
        var ns = 'gtmCheckout';
        var elements = $('[data-checkout-step=1]');
        if (elements.length) {
            var obj = this;
            elements.unbind('click.' + ns).bind('click.' + ns, function (ev) {
                ev.preventDefault();
                var href = $(this).attr('href');
                qs.showLoading();
                $.ajax({
                    url: obj._options.url,
                    data: {action: 'getGtmProducts'},
                    type: 'GET',
                    dataType: 'jsonp'
                }).done(function (json) {
                    qs.hideLoading();
                    if (true == json.success) {
                        lib.Gtm.onCheckout(1, json.products, function () { document.location = href; });
                    }
                });
            });
        }
    },

    updateQty: function(qty)
    {
        $('#' + this._qtyContainerId).text(qty);
        $('#' + this._qtyContainerTextId).text('Item' + (parseInt(qty) != 1 ? 's' : ''));
    },

    reset: function()
    {
        this._loaded = false;
        $(this._container).html($('<img/>', {'src': 'images/loading-arrow-16x16.gif', 'alt': 'Loading...'}));
    }
};