(function ($) {
    $.fn.specials = function (options) {
        var defaults = $.extend({
            ver: 1.0,
            branchId: null,
            vertical: 0,
            detailspage: 'http:\/\/' + document.domain + '\/vehicle.html',
            mediapath: 'https://trademe.tmcdn.co.nz/photoserver',
            jsonpath: 'http://jquery.dealerbase.co.nz',
            maxspecials: 4,
            slideinterval: 0,
            title: 'Our Favourites'
        }, options);

        var trademe = {
            cssclass: {
                "specials": "specials",
                "specialsvertical": "specials-vertical"
            },
            id: {
                "specials": "specials"
            },
            structure: {
                target: null,
                create: function (nodename, nodeid, nodeclass) {
                    var node = document.createElement(nodename);
                    if (nodeid) {
                        $(node).attr("id", nodeid);
                    }
                    if (nodeclass) {
                        $(node).addClass(nodeclass);
                    }
                    return $(node);
                },
                createspecials: function () {
                    var sform = trademe.structure.create("div", trademe.id.specials, trademe.cssclass.specials);
                    if (defaults.vertical == 1) {
                        sform.addClass(trademe.cssclass.specialsvertical);
                    }

                    if (defaults.title) {
                        var title = trademe.structure.create("h1", null, "cufon").html(defaults.title);
                        sform.append(title);
                    }
                    trademe.structure.target.append(sform);
                },
                binddata: function () {
                    if ($("#" + trademe.id.specials).length == 0) return;

                    if ($("#" + trademe.id.specials).length == 0) return;
                    if (!defaults.branchId) return;

                    $.getJSON(defaults.jsonpath + "/specialsdata.js?branchId=" + defaults.branchId + "&callback=" + (browser && browser.msie ? "?" : ""), function (data) {
                        var json = data;

                        if (typeof trademe.datafetched == 'undefined' && data) {
                            trademe["datafetched"] = true;
                        }

                        trademe["data"] = data;

                        /*bind specials*/
                        if ($("#" + trademe.id.specials).length > 0 && typeof trademe["data"] != 'undefined') {


                            defaults.maxspecials = trademe["data"].length < defaults.maxspecials ? trademe["data"].length : defaults.maxspecials;
                            var rndIndex = 0;

                            var specialflash = function () {
                                $("#" + trademe.id.specials).find("a").remove();
                                var i = 0;

                                var a_rndIndex = [];
                                while (i < defaults.maxspecials) {
                                    rndIndex = Math.floor((Math.random() * trademe["data"].length));
                                    if (a_rndIndex.length == 0 || $.inArray(rndIndex, a_rndIndex) == -1) {
                                        a_rndIndex.push(rndIndex);
                                        i++;
                                    }
                                }

                                $.each(a_rndIndex, function (i, _v) {
                                    if (trademe["data"][_v].image_list.length > 0) {
                                        var image_list = trademe["data"][_v].image_list;
                                        var v = trademe["data"][_v];
                                        var item = trademe.structure.create("a", null, null).attr("href", defaults.detailspage + (v.Id ? "?id=" + v.Id : ""));
                                        item.append(trademe.structure.create("img", null, null).attr("src", defaults.mediapath + "/Med/" + image_list[0].split('_')[1] + ".jpg"))
                                                .append(trademe.structure.create("label", null, null).html($.currency(parseInt(v.retail_price), { roundToDecimalPlace: 0 }) + "<br/>" + v.Year + " " + v.ManufacturerModel));
                                        $("#" + trademe.id.specials).append(item);
                                    }
                                });

                            };

                            specialflash();

                            //random display
                            if (defaults.slideinterval > 0) {
                                var d = window.setInterval(specialflash, 5000);
                            }

                        }
                    })
                    .error(function (jqxhr, settings, exception) {
                        var x = 0;
                    });


                },
                hasSpecials: function () {
                    return ($("#" + trademe.id.specials).length > 0);
                },
                loaddefaultstyle: function () {
                    if ($("head").find("link#_specials-theme").length == 0) {
                        var link = trademe.structure.create("link", "_specials-theme", null);
                        var url = defaults.jsonpath + "/css/specials.css";
                        link.attr("rel", "stylesheet").attr("type", "text/css").attr("href", url);

                        //for IE
                        if ((typeof $.browser != 'undefined' && $.browser.msie) || document.createStyleSheet) { document.createStyleSheet(url); }

                        $("head").prepend(link);
                    }
                },
                fetch: function (url, callback, dataType) {
                    dataType = !dataType ? "text" : dataType;
                    $.ajax({
                        url: url,
                        dataType: dataType, cache: true, ifModified: true,
                        success: function (jqxhr, settings, exception) {

                            if (!jqxhr) return;

                            if (callback) {
                                callback(jqxhr, settings, exception);
                            }
                        }
                    });
                }
            }
        };

        return this.each(function (i, obj) {

            //if hidden dont do this
            if ($(this).is(":visible")) {

                //get default theme for specials
                trademe.structure.loaddefaultstyle();

                trademe.structure.target = $(this);
                if (!trademe.structure.hasSpecials()) {
                    trademe.structure.createspecials();
                    trademe.structure.binddata();
                }
            }
        });
    };
})(jQuery);

$(document).ready(function(){
    if ($("#specials-form").length > 0) {
        var param = eval("[{" + $("#specials-form").attr("param") + "}]");
        $("#specials-form").specials(param[0]);
	}
});