<?php

namespace app\admin\controller\shop;

use app\common\controller\Backend;
use Exception;
use think\Db;
use think\exception\PDOException;
use think\exception\ValidateException;
use app\admin\model\shop\GoodsAttr;
use app\admin\model\shop\Spec;
use app\admin\model\shop\GoodsSkuSpec;
use app\common\Enum\GoodsEnum;
use app\common\Service\SkuSpec as SkuSpecService;
use app\common\Enum\StatusEnum;
/**
 * 商品管理
 *
 * @icon fa fa-circle-o
 */
class Goods extends Backend
{

    /**
     * 快速搜索时执行查找的字段
     */
    protected $searchFields = 'id,goods_sn,title,subtitle';

    /**
     * Goods模型对象
     * @var \app\admin\model\shop\Goods
     */
    protected $model = null;
    protected $sku_model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\shop\Goods;
        $this->sku_model = new \app\admin\model\shop\GoodsSku;

        // $this->view->assign("flagList", $this->model->getFlagList());
        // $this->view->assign("statusList", $this->model->getStatusList());
        $this->view->assign("goodsTypeList", GoodsEnum::getGoodsTypeMap());
        $this->assignconfig("goodsTypeList", json_encode(GoodsEnum::getGoodsTypeMap()));
        $this->view->assign("statusList", GoodsEnum::getGoodsStatusMap());
        $this->assignconfig("statusList", json_encode(GoodsEnum::getGoodsStatusMap()));
        $this->view->assign("specTypeList", GoodsEnum::getSpecTypeMap());
        $this->assignconfig("specTypeList", json_encode(GoodsEnum::getSpecTypeMap()));
        $this->view->assign("deliveryTypeList", GoodsEnum::getDeliveryTypeMap());
        $this->view->assign("onlineTypeList", GoodsEnum::getOnlineTypeMap());
        $this->view->assign("expressTypeList", GoodsEnum::getExpressTypeMap());
        $this->view->assign("stockShowTypeList", GoodsEnum::getStockShowTypeMap());
        $this->view->assign("salesShowTypeList", GoodsEnum::getSalesShowTypeMap());

        $this->view->assign("yesNoList", StatusEnum::getYesNoMap());

    }

    
    /**
     * 检查商品编码是否重复
     */
    public function checkGoodsSn()
    {
        $goods_sn = $this->request->param('goods_sn');
        $id = $this->request->param('id', 0);
        
        if (empty($goods_sn)) {
            $this->error('商品编码不能为空');
        }
        
        $where = [['goods_sn', '=', $goods_sn]];
        if ($id > 0) {
            $where[] = ['id', '<>', $id];
        }
        
        $exists = $this->model->where($where)->find();
        if ($exists) {
            $this->error('商品编码已存在');
        }
        
        $this->success('商品编码可用');
    }

    /**
     * 查看
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $list = $this->model
                ->with(['Freight', 'Brand', 'Category'])
                ->where($where)
                ->order($sort, $order)
                ->paginate($limit);

            $result = array("total" => $list->total(), "rows" => $list->items());

            return json($result);
        }
        return $this->view->fetch();
    }


    /**
     * 查看
     */
    public function select()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $list = $this->model
                ->with(['Freight', 'Brand', 'Category'])
                ->where($where)
                ->order($sort, $order)
                ->paginate($limit);

            // 为每个商品添加SKU信息
            $items = $list->items();
            foreach ($items as &$item) {
                // 获取商品的第一个SKU ID（单规格商品通常只有一个SKU）
                $sku = \app\common\model\Sku::where('goods_id', $item['id'])->find();
                $item['sku_id'] = $sku ? $sku['id'] : 0;
            }

            $result = array("total" => $list->total(), "rows" => $items);

            return json($result);
        }
        return $this->view->fetch();
    }

    //检查属性skus 和 spec 是否对上
    protected function checkSku($skus, $spec)
    {
        foreach ($skus as $item) {
            if (!isset($item['skus']) || !is_array($item['skus']) || empty($item['skus'])) {
                throw new Exception('规格属性不能为空');
            }
            if (!isset($item['price'])) {
                throw new Exception('请录入价格');
            }

            foreach ($item['skus'] as $k => $v) {
                if (empty($v) && !is_numeric($v)) {
                    throw new Exception('规格【' . $v . '】属性值不能为空');
                }
                if (!isset($spec[$k]['value']) || (empty($spec[$k]['name']) && !is_numeric($spec[$k]['name']))) {
                    throw new Exception('规格【' . $v . '】名称不能为空');
                }
                foreach ($spec[$k]['value'] as $m => $n) {
                    // 兼容新格式（对象）和旧格式（字符串）
                    $valueText = is_array($n) ? $n['name'] : $n;
                    if (stripos($valueText, ',') !== false) {
                        throw new Exception('规格【' . $v . '】属性值中不能包含,');
                    }
                }
                // 检查重复值（提取name字段进行比较）
                $valueNames = array_map(function($n) {
                    return is_array($n) ? $n['name'] : $n;
                }, $spec[$k]['value']);
                if (count($valueNames) != count(array_unique($valueNames))) {
                    throw new Exception('规格【' . $v . '】属性值中不能有重复值');
                }
                // 检查规格值是否匹配（支持新旧格式）
                $valueNames = array_map(function($n) {
                    return is_array($n) ? $n['name'] : $n;
                }, $spec[$k]['value']);
                if (empty($spec[$k]['value']) || !in_array($v, $valueNames)) {
                    throw new Exception('规格【' . $v . '】属性不匹配');
                }
            }
        }
    }

    protected function getSkuId($skus, $newSpec, $spec)
    {
        $arr = [];
        foreach ($skus as $index => $item) {
            $specArr = $spec[$index];
            foreach ($newSpec as $subindex => $subitem) {
                if ($subitem['spec_name'] == $specArr['name'] && $subitem['spec_value_value'] == $item) {
                    $arr[] = $subitem['id'];
                }
            }
        }
        sort($arr);
        return implode(',', $arr);
    }

    /**
     * 生成SKU属性JSON字符串
     * @param array $skus 当前SKU的规格值数组
     * @param array $newSpec 规格映射数据
     * @param array $spec 规格原始数据
     * @return string JSON格式的SKU属性字符串
     */
    protected function generateSkuAttr($skus, $newSpec, $spec)
    {
        $skuAttr = [];
        foreach ($skus as $index => $item) {
            $specArr = $spec[$index];
            foreach ($newSpec as $subindex => $subitem) {
                if ($subitem['spec_name'] == $specArr['name'] && $subitem['spec_value_value'] == $item) {
                    $skuAttr[] = [
                        'key' => $subitem['spec_name'],
                        'value' => $subitem['spec_value_value'],
                        'key_id' => $subitem['spec_id'],
                        'value_id' => $subitem['spec_value_id'],
                        'type' => $specArr['type'] ?? 'basic' // 增加规格类型字段
                    ];
                    break;
                }
            }
        }
        return json_encode($skuAttr, JSON_UNESCAPED_UNICODE);
    }

    /**
     * 根据上下架时间计算商品状态
     * @param array $params 商品参数
     * @return int 商品状态
     */
    protected function calculateGoodsStatus($params)
    {
        $currentTime = time();
        
        // 获取上架时间设置 - 前端传递的上架类型字段（使用status字段）
        $onlineType = isset($params['status']) ? intval($params['status']) : GoodsEnum::ONLINE_TYPE_NOT_NOW;
        $scheduledOnlineTime = isset($params['scheduled_online_time']) ? strtotime($params['scheduled_online_time']) : 0;
        
        // 获取下架时间设置
        $isAutoOffline = isset($params['is_auto_offline']) ? intval($params['is_auto_offline']) : 0;
        $scheduledOfflineTime = isset($params['scheduled_offline_time']) ? strtotime($params['scheduled_offline_time']) : 0;
        
        // 根据上架类型判断状态
        switch ($onlineType) {
            case GoodsEnum::ONLINE_TYPE_IMMEDIATE: // 立即上架
                // 检查是否需要自动下架
                if ($isAutoOffline && $scheduledOfflineTime > 0) {
                    if ($currentTime >= $scheduledOfflineTime) {
                        return GoodsEnum::STATUS_OFF_SALE; // 已下架
                    }
                }
                return GoodsEnum::STATUS_ON_SALE; // 销售中
                
            case GoodsEnum::ONLINE_TYPE_NOT_NOW: // 暂不上架
                return GoodsEnum::STATUS_IN_STORAGE; // 仓库中
                
            case GoodsEnum::ONLINE_TYPE_SCHEDULED: // 定时上架
                if ($scheduledOnlineTime <= 0) {
                    return GoodsEnum::STATUS_IN_STORAGE; // 未设置上架时间，保持仓库中
                }
                
                if ($currentTime < $scheduledOnlineTime) {
                    return GoodsEnum::STATUS_IN_STORAGE; // 未到上架时间，仓库中
                }
                
                // 已到上架时间，检查下架时间
                if ($isAutoOffline && $scheduledOfflineTime > 0) {
                    if ($currentTime >= $scheduledOfflineTime) {
                        return GoodsEnum::STATUS_OFF_SALE; // 已下架
                    }
                }
                
                return GoodsEnum::STATUS_ON_SALE; // 销售中
                
            default:
                return GoodsEnum::STATUS_IN_STORAGE; // 默认仓库中
        }
    }

    //处理商品SKU（统一处理单规格和多规格）
    protected function processGoodsSku($params, $goods_id)
    {
        // 统一通过skus和spec字段处理
        if (isset($params['skus']) && isset($params['spec'])) {
            $skus = (array)json_decode($params['skus'], true);
            $spec = (array)json_decode($params['spec'], true);
            
            // 判断是单规格还是多规格
            if (empty($spec) && count($skus) === 1) {
                // 单规格处理
                $this->addSingleSpecSku($skus[0], $goods_id);
            } else {
                // 多规格处理
                $this->addMultiSpecSku($skus, $spec, $goods_id);
            }
        } else {
            throw new \Exception('SKU数据格式错误');
        }
    }

    //添加单规格商品SKU
    protected function addSingleSpecSku($skuData, $goods_id)
    {
        // 如果原来是多规格，先清理多余的SKU记录
        $existingSkuCount = $this->sku_model->where('goods_id', $goods_id)->count();
        if ($existingSkuCount > 1) {
            // 从多规格改为单规格，删除所有旧记录
            $this->sku_model->where('goods_id', $goods_id)->delete();
        }
        
        // 查询现有的SKU记录
        $existingSku = $this->sku_model->where('goods_id', $goods_id)->find();
        
        // 创建单规格SKU数据
        $newSkuData = [
            'goods_id'       => $goods_id,
            'spec_value_ids' => '', // 单规格无规格值ID
            'sku_attr'       => '', // 单规格无规格属性
            'sku_sn'         => $skuData['sku_sn'] ?? '',
            'image'          => $skuData['image'] ?? '',
            'price'          => $skuData['price'] ?? 0,
            'lineation_price'=> $skuData['lineation_price'] ?? 0,
            'cost_price'     => $skuData['cost_price'] ?? 0,
            'weight'         => $skuData['weight'] ?? 0,
            'volume'         => $skuData['volume'] ?? 0,
            'stocks'         => $skuData['stocks'] ?? 0,
            'status'         => 1,
            'is_default'     => 1, // 单规格默认为默认SKU
        ];
        
        $defaultSkuId = 0;
        
        if ($existingSku) {
            // 单规格商品已存在SKU记录，直接更新（保持ID和销量不变）
            $newSkuData['sales'] = $existingSku->sales; // 保持原有销量
            $existingSku->save($newSkuData);
            $defaultSkuId = $existingSku->id;
        } else {
            // 新商品，创建SKU记录
            $newSkuData['sales'] = 0;
            $newSku = $this->sku_model->create($newSkuData);
            $defaultSkuId = $newSku->id;
        }
        
        // 更新商品主表信息
        $updateData = [
            'spec_type'          => 0, // 单规格
            'stocks'             => $skuData['stocks'] ?? 0,
            'min_price'          => $skuData['price'] ?? 0,
            'max_price'          => $skuData['price'] ?? 0,
            'price'              => $skuData['price'] ?? 0,
            'min_lineation_price'=> $skuData['lineation_price'] ?? 0,
            'max_lineation_price'=> $skuData['lineation_price'] ?? 0,
            'lineation_price'    => $skuData['lineation_price'] ?? 0,
            'default_sku_id'     => $defaultSkuId,
        ];
        
        $this->model->where('id', $goods_id)->update($updateData);
    }

    //添加商品多规格
    protected function addMultiSpecSku($skus, $spec, $goods_id)
    {
        //属性入库，传递规格类型信息
        $specList = Spec::push($spec);
        $newSpec = GoodsSkuSpec::push($specList, $goods_id, $spec);
        //匹配属性
        $list = $this->sku_model->where('goods_id', $goods_id)->select();
        $newData = [];
        $stocks = 0;
        foreach ($skus as $k => $sk) {
            $newSkuId = $this->getSkuId($sk['skus'], $newSpec, $spec);
            
            // 生成SKU规格属性JSON字符串
            $skuAttr = $this->generateSkuAttr($sk['skus'], $newSpec, $spec);
            
            $newSkuData = [
                'goods_id'     => $goods_id,
                'spec_value_ids' => $newSkuId,
                'sku_attr'     => $skuAttr,
                'sku_sn'       => $sk['sku_sn'] ?? '',
                'image'        => $sk['image'] ?? '',
                'price'        => $sk['price'] ?? 0,
                'lineation_price' => $sk['lineation_price'] ?? 0,
                'cost_price'   => $sk['cost_price'] ?? 0,
                'weight'       => $sk['weight'] ?? 0,
                'volume'       => $sk['volume'] ?? 0,
                'stocks'       => $sk['stocks'] ?? 0,
                'status'       => isset($sk['status']) ? intval($sk['status']) : 1,
                'is_default'   => isset($sk['is_default']) ? intval($sk['is_default']) : 0,
            ];
            if (isset($list[$k])) {
                $row = $list[$k];
                $oldSkuIdsArr = explode(',', $row['spec_value_ids']);
                sort($oldSkuIdsArr);
                $oldSkuId = implode(',', $oldSkuIdsArr);

                if ($oldSkuId == $newSkuId) {
                    //相等的更新
                    $row->save($newSkuData);
                } else {
                    //不等的
                    $row->save(array_merge($newSkuData, ['sales' => 0]));
                }
                unset($list[$k]);
            } else { //多余的
                $newData[] = array_merge($newSkuData, ['sales' => 0]);
            }
            $stocks = bcadd($stocks, $sk['stocks'] ?? 0);
        }
        if (!empty($newData)) {
            $this->sku_model->saveAll($newData);
        }
        
        // 处理默认SKU
        $defaultSkuId = 0;
        $hasDefault = false;
        foreach ($skus as $k => $sk) {
            if (isset($sk['is_default']) && $sk['is_default']) {
                $hasDefault = true;
                break;
            }
        }
        
        // 如果没有明确设置默认SKU，则使用第一个SKU作为默认
        if (!$hasDefault && !empty($skus)) {
            $firstSku = $this->sku_model->where('goods_id', $goods_id)->order('id', 'asc')->find();
            if ($firstSku) {
                $firstSku->save(['is_default' => 1]);
                $defaultSkuId = $firstSku->id;
            }
        } else {
            // 查找默认SKU的ID
            $defaultSku = $this->sku_model->where('goods_id', $goods_id)->where('is_default', 1)->find();
            if ($defaultSku) {
                $defaultSkuId = $defaultSku->id;
            }
        }
        
        //更新库存和默认SKU，计算价格范围
        if (!empty($skus)) {
            $prices = array_column($skus, 'price');
            $lineationPrices = array_column($skus, 'lineation_price');
            
            // 使用bc函数计算平均价格，保证精度
            $totalPrice = '0';
            $validPriceCount = 0;
            foreach ($prices as $price) {
                if ($price > 0) {
                    $totalPrice = bcadd($totalPrice, (string)$price, 2);
                    $validPriceCount++;
                }
            }
            
            // 计算平均价格
            $avgPrice = $validPriceCount > 0 ? bcdiv($totalPrice, (string)$validPriceCount, 2) : '0.00';
            
            // 使用bc函数计算平均划线价格
            $totalLineationPrice = '0';
            $validLineationPriceCount = 0;
            foreach ($lineationPrices as $lineationPrice) {
                if ($lineationPrice > 0) {
                    $totalLineationPrice = bcadd($totalLineationPrice, (string)$lineationPrice, 2);
                    $validLineationPriceCount++;
                }
            }
            
            // 计算平均划线价格
            $avgLineationPrice = $validLineationPriceCount > 0 ? bcdiv($totalLineationPrice, (string)$validLineationPriceCount, 2) : '0.00';
            
            // 过滤掉0值的划线价格来计算最大最小值
            $validLineationPrices = array_filter($lineationPrices, function($price) {
                return $price > 0;
            });
            
            $updateData = [
                'stocks' => $stocks, 
                'spec_type' => 1,
                'min_price' => min($prices),
                'max_price' => max($prices),
                'price' => $avgPrice,
                'min_lineation_price' => !empty($validLineationPrices) ? min($validLineationPrices) : '0.00',
                'max_lineation_price' => !empty($validLineationPrices) ? max($validLineationPrices) : '0.00',
                'lineation_price' => $avgLineationPrice
            ];
            if ($defaultSkuId > 0) {
                $updateData['default_sku_id'] = $defaultSkuId;
            }
            $this->model->where('id', $goods_id)->update($updateData);
        } else {
            $this->model->where('id', $goods_id)->update(['spec_type' => 0]);
        }
        //原来多的删除
        foreach ($list as $it) {
            $it->delete();
        }
    }

    /**
     * 添加
     */
    public function add()
    {
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);

                if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                    $params[$this->dataLimitField] = $this->auth->id;
                }
                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                        
                        // 添加规格数据到验证参数中
                        if (isset($params['skus']) && isset($params['spec'])) {
                            $params['spec_data'] = json_decode($params['spec'], true);
                            $params['sku_data'] = json_decode($params['skus'], true);
                        }
                        
                        $this->model->validateFailException(true)->validate($validate);
                    }
                    
                    // 备份上架类型，因为status字段将被覆盖为最终状态
                    $originalOnlineType = $params['online_type'] ??  GoodsEnum::ONLINE_TYPE_NOT_NOW;
                    
                    // 将online_type映射到status字段用于计算
                    if (isset($params['online_type'])) {
                        $params['status'] = $params['online_type'];
                        unset($params['online_type']);
                    }
                    
                    // 先保存商品基础信息（暂时不保存status字段）
                    $statusBackup = $params['status'] ?? null;
                    unset($params['status']); // 临时移除status避免冲突
                    $result = $this->model->allowField(true)->save($params);
                    
                    // 根据上下架时间自动计算商品状态并更新
                    $params['status'] = $statusBackup; // 恢复用于计算
                    $calculatedStatus = $this->calculateGoodsStatus($params);
                    $this->model->where('id', $this->model->id)->update([
                        'status' => $calculatedStatus,
                        'online_type' => $originalOnlineType  // 保存原始上架类型用于编辑时回显
                    ]);
                    
                    // 调试输出
                    \think\Log::write('商品添加 - 上架类型: ' . $originalOnlineType . ', 计算状态: ' . $calculatedStatus, 'info');
                    //商品规格处理
                    if (isset($params['skus']) && isset($params['spec'])) {
                        $skus = (array)json_decode($params['skus'], true);
                        $spec = (array)json_decode($params['spec'], true);
                        
                        // 只对多规格进行checkSku验证
                        if (!empty($spec)) {
                            $this->checkSku($skus, $spec);
                        }
                        
                        // 统一处理SKU
                        $this->processGoodsSku($params, $this->model->id);
                    } else {
                        throw new \Exception('商品规格数据不能为空');
                    }
                    //商品属性
                    if (isset($params['attribute_ids'])) {
                        GoodsAttr::addGoodsAttr($params['attribute_ids'], $this->model->id);
                    }
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were inserted'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }

        return $this->view->fetch();
    }

    /**
     * 编辑
     */
    public function edit($ids = null)
    {
        $row = $this->model->find($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            if (!in_array($row[$this->dataLimitField], $adminIds)) {
                $this->error(__('You have no permission'));
            }
        }
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);
                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                        
                        // 添加规格数据到验证参数中
                        if (isset($params['skus']) && isset($params['spec'])) {
                            $params['spec_data'] = json_decode($params['spec'], true);
                            $params['sku_data'] = json_decode($params['skus'], true);
                        }
                        
                        $row->validateFailException(true)->validate($validate);
                    }
                    
                    // 备份上架类型，因为status字段将被覆盖为最终状态
                    $originalOnlineType = $params['online_type'] ??  GoodsEnum::ONLINE_TYPE_NOT_NOW;
                    
                    // 将online_type映射到status字段用于计算
                    if (isset($params['online_type'])) {
                        $params['status'] = $params['online_type'];
                        unset($params['online_type']);
                    }
                    
                    // 先保存商品基础信息（暂时不保存status字段）
                    $statusBackup = $params['status'] ?? null;
                    unset($params['status']); // 临时移除status避免冲突
                    $result = $row->allowField(true)->save($params);
                    
                    // 根据上下架时间自动计算商品状态并更新
                    $params['status'] = $statusBackup; // 恢复用于计算
                    $calculatedStatus = $this->calculateGoodsStatus($params);
                    $this->model->where('id', $row->id)->update([
                        'status' => $calculatedStatus,
                        'online_type' => $originalOnlineType  // 保存原始上架类型用于编辑时回显
                    ]);
                    
                    // 调试输出
                    \think\Log::write('商品编辑 - 上架类型: ' . $originalOnlineType . ', 计算状态: ' . $calculatedStatus, 'info');
                    //商品规格处理
                    if (isset($params['skus']) && isset($params['spec'])) {
                        $skus = (array)json_decode($params['skus'], true);
                        $spec = (array)json_decode($params['spec'], true);
                        
                        // 只对多规格进行checkSku验证
                        if (!empty($spec)) {
                            $this->checkSku($skus, $spec);
                        }
                        
                        // 统一处理SKU
                        $this->processGoodsSku($params, $row->id);
                    } else {
                        throw new \Exception('商品规格数据不能为空');
                    }
                    //商品属性
                    if (isset($params['attribute_ids'])) {
                        GoodsAttr::addGoodsAttr($params['attribute_ids'], $row->id);
                    }
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were updated'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
            
        
        // 查询SKU数据
        $list = $this->sku_model->where('goods_id', $row->id)->select();
    
        // 构造规格数据结构
        $spec_data = [];
        $spec_values = []; // 用于传递给前端的规格值完整数据
        if ($row->spec_type == 1) { // 多规格商品
            // 查询规格和规格值，包含规格类型
            $specs = Db::name('shop_goods_sku_spec')
                ->alias('gss')
                ->field('sp.id as spec_id, sp.name as spec_name, sp.type as spec_type, sv.id as spec_value_id, sv.value, sv.image, sv.desc')
                ->join('shop_spec sp', 'sp.id = gss.spec_id', 'LEFT')
                ->join('shop_spec_value sv', 'sv.id = gss.spec_value_id', 'LEFT')
                ->where('gss.goods_id', $row->id)
                ->order('sp.id asc, sv.id asc')
                ->select();
            
            // 按规格分组
            $spec_groups = [];
            foreach ($specs as $spec) {
                if (!isset($spec_groups[$spec['spec_id']])) {
                    $spec_groups[$spec['spec_id']]['name'] = $spec['spec_name'];
                    $spec_groups[$spec['spec_id']]['type'] = $spec['spec_type'] == 2 ? 'custom' : 'basic';
                    $spec_groups[$spec['spec_id']]['value'] = [];
                }
                $spec_groups[$spec['spec_id']]['value'][] = [
                    'id' => $spec['spec_value_id'],
                    'name' => $spec['value'],
                    'image' => $spec['image'] ?: '',
                    'description' => $spec['desc'] ?: ''
                ];
                
                // 构造规格值数据，用于前端初始化
                $spec_values[] = [
                    'spec_name' => $spec['spec_name'],
                    'spec_type' => $spec['spec_type'],
                    'value' => $spec['value'],
                    'image' => $spec['image'] ?: '',
                    'description' => $spec['desc'] ?: ''
                ];
            }
            
            // 转换为前端需要的格式
            foreach ($spec_groups as $spec_id => $spec_info) {
                $spec_data[] = [
                    'id' => $spec_id,
                    'name' => $spec_info['name'],
                    'type' => $spec_info['type'],
                    'value' => $spec_info['value']
                ];
            }
        }
        
        $this->view->assign("row", $row);
        $this->assignconfig('goods', $row);
        $this->assignconfig('goods_skus', $list);
        $this->assignconfig('spec_data', $spec_data); // 传递规格数据结构
        $this->assignconfig('spec_values', $spec_values); // 传递规格值完整数据

        return $this->view->fetch();
    }

    /**
     * 获取多个商品信息
     */
    public function getGoodsByIds()
    {
        $ids = $this->request->request('ids');
        if (!$ids) {
            $this->error('请选择商品');
        }
        
        $ids = explode(',', $ids);
        $list = $this->model
            ->with(['Category'])
            ->where('id', 'in', $ids)
            ->select();
            
        // 处理图片URL和SKU信息
        foreach ($list as &$item) {
            if ($item['image']) {
                $item['image'] = cdnurl($item['image'], true);
            }
            
            // 获取商品的第一个SKU ID（单规格商品通常只有一个SKU）
            $sku = \app\common\model\Sku::where('goods_id', $item['id'])->find();
            $item['sku_id'] = $sku ? $sku['id'] : 0;
        }
        
        
        $this->success('获取成功', null, $list);
    }

    /**
     * 根据ID批量获取商品信息
     */
    public function get_goods_by_ids()
    {
        $ids = $this->request->request('ids');
        if (!$ids) {
            $this->error('请选择商品');
        }
        
        $ids = explode(',', $ids);
        $list = $this->model
            ->with(['Category'])
            ->where('id', 'in', $ids)
            ->select();
            
        // 处理图片URL和SKU信息
        foreach ($list as &$item) {
            if ($item['image']) {
                $item['image'] = cdnurl($item['image'], true);
            }
            
            // 获取商品的第一个SKU ID（单规格商品通常只有一个SKU）
            $sku = \app\common\model\Sku::where('goods_id', $item['id'])->find();
            $item['sku_id'] = $sku ? $sku['id'] : 0;
        }
        
        return json($list);
    }

    /**
     * 复制商品
     */
    public function copy($ids = null)
    {
        $row = $this->model->find($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }

        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            if (!in_array($row[$this->dataLimitField], $adminIds)) {
                $this->error(__('You have no permission'));
            }
        }

        Db::startTrans();
        try {
            // 复制商品基本信息
            $goodsData = $row->toArray();
            
            // 调试输出
            \think\Log::write('开始复制商品，原商品ID: ' . $row->id, 'info');
            
            // 移除不需要复制的字段
            unset($goodsData['id'], $goodsData['createtime'], $goodsData['updatetime']);
            
            // 修改商品名称和编码，添加"复制"标识
            $goodsData['title'] = $goodsData['title'] . ' (复制)';
            $goodsData['goods_sn'] = $goodsData['goods_sn'] . '_copy_' . date('YmdHis');
            $goodsData['status'] = \app\common\Enum\GoodsEnum::STATUS_IN_STORAGE; // 复制的商品默认为仓库中状态
            $goodsData['online_type'] = \app\common\Enum\GoodsEnum::ONLINE_TYPE_NOT_NOW; // 暂不上架
            $goodsData['sales'] = 0; // 重置销量
            $goodsData['views'] = 0; // 重置浏览量
            
            // 创建新商品
            $newGoods = $this->model->create($goodsData);
            $newGoodsId = $newGoods->id;
            
            // 复制商品SKU信息
            $skuList = $this->sku_model->where('goods_id', $row->id)->select();
            \think\Log::write('查询到SKU数量: ' . ($skuList ? count($skuList) : 0), 'info');
            $newSkuData = [];
            $defaultSkuId = 0;
            
            if ($skuList && !$skuList->isEmpty()) {
                foreach ($skuList as $sku) {
                    $skuData = $sku->toArray();
                    unset($skuData['id'], $skuData['createtime'], $skuData['updatetime']);
                    
                    $skuData['goods_id'] = $newGoodsId;
                    $skuData['sales'] = 0; // 重置销量
                    $skuData['sku_sn'] = $skuData['sku_sn'] . '_copy_' . date('YmdHis');
                    
                    $newSkuData[] = $skuData;
                }
            }
            
            if (!empty($newSkuData)) {
                $newSkus = $this->sku_model->saveAll($newSkuData);
                // 获取第一个SKU作为默认SKU
                if (!empty($newSkus)) {
                    $defaultSkuId = $newSkus[0]->id;
                }
            } else {
                // 如果没有SKU数据，创建一个默认的SKU
                \think\Log::write('没有找到SKU数据，创建默认SKU', 'info');
                $defaultSkuData = [
                    'goods_id' => $newGoodsId,
                    'spec_value_ids' => '',
                    'sku_attr' => '', // 单规格无规格属性
                    'sku_sn' => $goodsData['goods_sn'] ?? 'SKU_' . date('YmdHis'),
                    'image' => $goodsData['image'] ?? '',
                    'price' => isset($goodsData['price']) ? $goodsData['price'] : 0.01,
                    'lineation_price' => isset($goodsData['lineation_price']) ? $goodsData['lineation_price'] : 0,
                    'cost_price' => 0,
                    'weight' => 0,
                    'volume' => 0,
                    'stocks' => 1,
                    'sales' => 0,
                    'status' => 1,
                    'is_default' => 1,
                ];
                $newSku = $this->sku_model->create($defaultSkuData);
                $defaultSkuId = $newSku->id;
            }
            
            // 更新商品默认SKU
            if ($defaultSkuId > 0) {
                $newGoods->save(['default_sku_id' => $defaultSkuId]);
            }
            
            // 复制商品规格信息（如果是多规格商品）
            if ($row->spec_type == 1) {
                // 复制商品规格关联
                $goodsSpecList = Db::name('shop_goods_sku_spec')
                    ->where('goods_id', $row->id)
                    ->select();
                
                $newGoodsSpecData = [];
                if ($goodsSpecList && is_array($goodsSpecList) && !empty($goodsSpecList)) {
                    foreach ($goodsSpecList as $goodsSpec) {
                        $newGoodsSpecData[] = [
                            'goods_id' => $newGoodsId,
                            'spec_id' => $goodsSpec['spec_id'],
                            'spec_value_id' => $goodsSpec['spec_value_id'],
                            'createtime' => time(),
                            'updatetime' => time()
                        ];
                    }
                }
                
                if (!empty($newGoodsSpecData)) {
                    Db::name('shop_goods_sku_spec')->insertAll($newGoodsSpecData);
                }
            }
            
            // 复制商品属性信息
            $goodsAttrList = Db::name('shop_goods_attr')
                ->where('goods_id', $row->id)
                ->select();
            
            $newGoodsAttrData = [];
            if ($goodsAttrList && is_array($goodsAttrList) && !empty($goodsAttrList)) {
                foreach ($goodsAttrList as $goodsAttr) {
                    $newGoodsAttrData[] = [
                        'goods_id' => $newGoodsId,
                        'attr_id' => $goodsAttr['attr_id'],
                        'attr_value' => $goodsAttr['attr_value'],
                        'createtime' => time(),
                        'updatetime' => time()
                    ];
                }
            }
            
            if (!empty($newGoodsAttrData)) {
                Db::name('shop_goods_attr')->insertAll($newGoodsAttrData);
            }
            
            Db::commit();
            \think\Log::write('商品复制成功，新商品ID: ' . $newGoodsId, 'info');
            $this->success('商品复制成功', null, ['goods_id' => $newGoodsId]);
            
        } catch (Exception $e) {
            Db::rollback();
            \think\Log::write('商品复制失败: ' . $e->getMessage() . ' 文件: ' . $e->getFile() . ' 行: ' . $e->getLine(), 'error');
            $this->error('复制失败：' . $e->getMessage());
        } catch (\Throwable $e) {
            Db::rollback();
            \think\Log::write('商品复制出现严重错误: ' . $e->getMessage() . ' 文件: ' . $e->getFile() . ' 行: ' . $e->getLine(), 'error');
            $this->error('复制失败：系统错误');
        }
    }

}