layui.define('layer', function(exports) {
    var $ = layui.$, layer = layui.layer;
    'use strict';
    
    var SelectY2 = function(o) {
        this.c = {
            elem: '',
            data: '',
            url: '',
            placeholder: '请选择：',
            disabledTips: '',
            success: function() {}
        };
        this.c = $.extend(this.c, o);
        this.init();
    };

    SelectY2.prototype = {
        init: function() {
            this.data = this.c.url ? this.getData(this.c.url) : this.c.data;
            this.render();
        },
        
        getData: function(url) {
            var res;
            $.ajax({
                url: url,
                type: "get",
                dataType: 'json',
                async: false,
                success: function(e) {
                    res = e.data || layer.msg('数据接口错误，请正确配置');
                },
                error: function() {
                    layer.msg('数据接口错误，请正确配置');
                    res = '';
                }
            });
            return res;
        },
        
        getChild: function(data, pid) {
            var child = [];
            for (var i = 0; i < data.length; i++) {
                if (data[i].pid == pid) {
                    child.push(data[i]);
                }
            }
            return child;
        },
        
        createChild: function(items) {
            var o = this;
            var ul = '<ul>';
            for (var i = 0; i < items.length; i++) {
                var row = o.getChild(o.data, items[i].id);
                row = row.length != 0 ? 'child-row' : '';
                var off = items[i].off ? 'layui-disabled' : '';
                ul += '<li class="' + row + ' ' + off + '" data-id="' + items[i].id + '">' + items[i].name + '</li>';
            }
            ul += '</ul>';
            return ul;
        },
        
        setValue: function(value) {
            var o = this, data = o.data;
            var elem = $(o.c.elem);
            var parent = elem.parent();
            
            // 清空当前选中状态和弹出层内容
            parent.find('.pop').empty();
            parent.find('.show').html(o.c.placeholder);
            elem.val('');
            
            // 查找匹配的值路径
            var path = [];
            var currentItems = o.getChild(data, 0); // 从顶级开始
            
            for (var i = 0; i < value.length; i++) {
                var found = false;
                for (var j = 0; j < currentItems.length; j++) {
                    if (currentItems[j].name === value[i]) {
                        path.push(currentItems[j]);
                        currentItems = o.getChild(data, currentItems[j].id);
                        found = true;
                        break;
                    }
                }
                if (!found) {
                    break; // 如果没找到匹配项，中断循环
                }
            }
            
            if (path.length > 0) {
                // 重建弹出层结构
                parent.find('.pop').empty();
                for (var k = 0; k < path.length; k++) {
                    var items = o.getChild(data, k === 0 ? 0 : path[k-1].id);
                    var itemsHtml = o.createChild(items);
                    parent.find('.pop').append(itemsHtml);
                    
                    // 激活当前层级的选择项
                    var currentUl = parent.find('.pop ul').eq(k);
                    currentUl.find('li[data-id="' + path[k].id + '"]').addClass('active');
                }
                
                // 添加下一级（如果有）
                var lastItem = path[path.length - 1];
                var childItems = o.getChild(data, lastItem.id);
                if (childItems.length > 0) {
                    var childHtml = o.createChild(childItems);
                    parent.find('.pop').append(childHtml);
                }
                
                // 更新显示值和输入框值
                var showValue = path.map(function(item) { return item.name; }).join('<i>/</i>');
                var inputValue = path.map(function(item) { return item.name; }).join('/');
                
                parent.find('.show').html(showValue);
                elem.val(inputValue);
                
                // 调用成功回调
                if (typeof o.c.success === "function") {
                    var ids = path.map(function(item) { return item.id; });
                    var vvv = path.map(function(item){return item.name;});
                    o.c.success({
                        data: vvv,
                        ids: ids
                    });
                }
                
                // 返回 ID 数组（关键修改）
                return path.map(function(item) { return item.id; });
            }
            
            return []; // 如果没有匹配项，返回空数组
        },
        
        showPopup: function(data, id) {
            var o = this;
            var items = o.getChild(data, id);
            if (items.length != 0) {
                var itemsHtml = o.createChild(items);
                $(o.c.elem).parent().find('.pop').append(itemsHtml);
            }
        },
        
        scroll: function() {
            var o = this, c = o.c, ele = c.elem;
            var x = $(ele).parent().find('.pop ul');
            for (var j = 0; j < x.length; j++) {
                var e = x.eq(j).children('li.active');
                if (e[0]) {
                    var t = e.position().top, i = x.eq(j).height(), a = e.height();
                    t > i && x.eq(j).scrollTop(t + x.eq(j).scrollTop() - i + a + 3),
                    t < 0 && x.eq(j).scrollTop(t + x.eq(j).scrollTop() - 5)
                }
            }
        },
        
        render: function() {
            var o = this, c = o.c, e = c.elem;
            var html = '<div class="selectY-box"></div>',
                show = '<span class="show"><span class="cl-exp">' + c.placeholder + '</span></span>',
                pop = '<div class="pop"></div>';
            $(e).wrap(html);
            $(e).after(show + pop);
        
            o.showPopup(o.data, 0);
            
            if ($(e).val() != '') {
                var value = $(e).val().split('/');
                var showValue = value.join('<i>/</i>');
                $(e).parent().find('.show').html(showValue);
        
                // 获取 setValue 返回的 ID 数组
                var setID = o.setValue(value);
                for (var i = 0; i < setID.length; i++) {
                    o.showPopup(o.data, setID[i]);
                    var fistUi = $(e).parent().find('.pop ul');
                    fistUi.eq(i).find('li[data-id=' + setID[i] + ']').addClass('active');
                }
            }

            $(e).parent().find('.pop').on('click', 'ul li', function(en) {
                if ($(this).hasClass("layui-disabled")) {
                    layer.msg(c.disabledTips);
                    return false;
                }
                $(this).addClass('active').siblings().removeClass('active');
                $(this).parent().nextAll('ul').remove();
                var id = $(this).data('id');
                o.showPopup(o.data, id);
                if (!$(this).hasClass("child-row")) {
                    $(e).parent().find('.pop').hide();
                    var activeLi = $(e).parent().find('.pop li.active');
                    var checkValue = [], ids = [];
                    for (var i = 0; i < activeLi.length; i++) {
                        checkValue.push(activeLi.eq(i).html());
                        ids.push(activeLi.eq(i).data('id'))
                    }
                    var inputValue = checkValue.join('/');
                    var showValue = checkValue.join('<i>/</i>');
                    $(e).val(inputValue);
                    $(e).parent().find('.show').html(showValue);

                    if (typeof c.success === "function") {
                        var callback = {
                            data: checkValue,
                            ids: ids
                        };
                        c.success(callback);
                    }
                }
                layui.stope(en);
            });

            $(e).parent().find('.show').on('click', function(en) {
                $(e).parent().find('.pop').show();
                o.scroll();
                layui.stope(en);
            });
            
            $(document).on('click', function() {
                $(e).parent().find('.pop').hide();
            });
        }
    };

    exports('selectY2', function(o) {
        return new SelectY2(o);
    });
}).link(layui.cache.base + "selectY/selectY.css?v=" + (new Date).getTime());