jQuery(function($){

    $(".erun_itemform select.it_supply").on("shop_sel_supply_process", function(e, param){
        
        var add_exec = param.add_exec;
        var $el = $(this);
        var val = $el.val();
		
        //블랙캣77님이 해당 코드에 도움을 주셨습니다.
        var eq = $("select.it_supply").index($(this));
        var item = $el.closest(".sit_option").find("label").eq(eq).text();
        
        if(!val) {
            alert(item+"을(를) 선택해 주십시오.");
            return false;
        }

        var info = val.split(",");

        // 재고체크
        if(parseInt(info[2]) < 1) {
            alert(info[0]+"은(는) 재고가 부족하여 구매할 수 없습니다.");
            return false;
        }

        var id = item+chr(30)+info[0];
        var option = item+":"+info[0];
        var price = info[1];
        var stock = info[2];

        // 금액 음수 체크
        if(parseInt(price) < 0) {
            alert("구매금액이 음수인 상품은 구매할 수 없습니다.");
            return false;
        }

        if(add_exec) {
            if(same_option_check(option))
                return false;

            add_sel_option(1, id, option, price, stock);
        }

        return false;
    });

    if (typeof add_sel_option === "function") {

        add_sel_option = (function() {
            var cached_function = add_sel_option;

            return function() {
                
                if( $(".erun_itemform").length ){
                    var a = arguments;
                    var type=a[0],
                        id=a[1],
                        option=a[2],
                        price=a[3],
                        stock=a[4];

                    var item_code = $("input[name='it_id[]']").val();
                    var opt = "";
                    var li_class = "sit_opt_list";
                    if(type)
                        li_class = "sit_spl_list";

                    var opt_prc;
                    if(parseInt(price) >= 0)
                        opt_prc = "+"+number_format(String(price))+"원";
                    else
                        opt_prc = number_format(String(price))+"원";

                    opt += "<li class=\""+li_class+"\">";
                    opt += "<input type=\"hidden\" name=\"io_type["+item_code+"][]\" value=\""+type+"\">";
                    opt += "<input type=\"hidden\" name=\"io_id["+item_code+"][]\" value=\""+id+"\">";
                    opt += "<input type=\"hidden\" name=\"io_value["+item_code+"][]\" value=\""+option+"\">";
                    opt += "<input type=\"hidden\" class=\"io_price\" value=\""+price+"\">";
                    opt += "<input type=\"hidden\" class=\"io_stock\" value=\""+stock+"\">";
                    opt += "<div class=\"opt_name\">";
                    opt += "<span class=\"sit_opt_subj\">"+option+"</span>";
                    opt += "</div>";
                    opt += "<div class=\"opt_count\">";
                    opt += "<button type=\"button\" class=\"sit_qty_minus\"><i class=\"fa fa-minus\" aria-hidden=\"true\"></i><span class=\"sound_only\">감소</span></button>";
                    opt += "<input type=\"text\" name=\"ct_qty["+item_code+"][]\" value=\"1\" class=\"num_input\" size=\"5\">";
                    opt += "<button type=\"button\" class=\"sit_qty_plus\"><i class=\"fa fa-plus\" aria-hidden=\"true\"></i><span class=\"sound_only\">증가</span></button>";
                    opt += "<span class=\"sit_opt_prc\">"+opt_prc+"</span>";
                    opt += "<button type=\"button\" class=\"sit_opt_del\"><i class=\"fa fa-times\" aria-hidden=\"true\"></i><span class=\"sound_only\">삭제</span></button></div>";
                    opt += "</li>";

                    if($("#sit_sel_option > ul").size() < 1) {
                        $("#sit_sel_option").html("<ul id=\"sit_opt_added\"></ul>");
                        $("#sit_sel_option > ul").html(opt);
                    } else{
                        if(type) {
                            if($("#sit_sel_option .sit_spl_list").size() > 0) {
                                $("#sit_sel_option .sit_spl_list:last").after(opt);
                            } else {
                                if($("#sit_sel_option .sit_opt_list").size() > 0) {
                                    $("#sit_sel_option .sit_opt_list:last").after(opt);
                                } else {
                                    $("#sit_sel_option > ul").html(opt);
                                }
                            }
                        } else {
                            if($("#sit_sel_option .sit_opt_list").size() > 0) {
                                $("#sit_sel_option .sit_opt_list:last").after(opt);
                            } else {
                                if($("#sit_sel_option .sit_spl_list").size() > 0) {
                                    $("#sit_sel_option .sit_spl_list:first").before(opt);
                                } else {
                                    $("#sit_sel_option > ul").html(opt);
                                }
                            }
                        }
                    }

                    price_calculate();

                } else {

                    cached_function.apply(this, arguments); // use .apply() to call it

                }   //end if

            };
        }());
    }   //end if check function

    if (typeof price_calculate === "function") {
        price_calculate = (function() {
            var cached_function = price_calculate;

            return function() {
                
                if( $(".erun_itemform").length ){

                    var it_price = parseInt($("input#it_price").val());

                    if(isNaN(it_price))
                        return;

                    var $el_prc = $("input.io_price");
                    var $el_qty = $("input[name^=ct_qty]");
                    var $el_type = $("input[name^=io_type]");
                    var price, type, qty, total = 0;

                    $el_prc.each(function(index) {
                        price = parseInt($(this).val());
                        qty = parseInt($el_qty.eq(index).val());
                        type = $el_type.eq(index).val();

                        if(type == "0") { // 선택옵션
                            total += (it_price + price) * qty;
                        } else { // 추가옵션
                            total += price * qty;
                        }
                    });

                    $("#sit_tot_price").empty().html("<span>총 금액 </span><strong>"+number_format(String(total))+"</strong> 원");

                } else {
                    cached_function.apply(this, arguments); // use .apply() to call it
                }
                
            };
        }());
    }   //end if check function

});