<?php

namespace App\Module\AppGame\Handler\Shop;

use App\Module\AppGame\Handler\BaseHandler;
use App\Module\Shop\Services\ShopService;
use Google\Protobuf\Internal\Message;
use Illuminate\Support\Facades\Log;
use Uraus\Kku\Common\DataShopCategory;
use Uraus\Kku\Common\DataShopItem;
use Uraus\Kku\Common\LastData;
use Uraus\Kku\Request\RequestShopQuery;
use Uraus\Kku\Response\ResponseShopQuery;
use UCore\Exception\LogicException;

/**
 * 处理商店查询请求
 */
class QueryHandler extends BaseHandler
{
    /**
     * 是否需要登录
     * @var bool
     */
    protected bool $need_login = true;

    /**
     * 处理商店查询请求
     *
     * @param RequestShopQuery $data 商店查询请求数据
     * @return ResponseShopQuery 商店查询响应
     */
    public function handle(Message $data): Message
    {
        // 创建响应对象
        $response = new ResponseShopQuery();

        try {
            // 获取请求参数
            $categoryId = $data->getCategoryId() ?? 0;
            $promotionId = $data->getPromotionId() ?? 0;
            $onlyPromotion = $data->getOnlyPromotion() ?? false;
            $userId = $this->user_id;

            // 构建过滤条件
            $filters = [];
            if ($categoryId > 0) {
                $filters['category_id'] = $categoryId;
            }

            if ($promotionId > 0) {
                $filters['promotion_id'] = $promotionId;
            }

            if ($onlyPromotion) {
                $filters['only_promotion'] = true;
            }

            // 获取商店商品列表
            $shopItems = ShopService::getShopItems($filters);

            // 获取商店分类列表
            $shopCategories = ShopService::getShopCategories();

            // 创建LastData对象，用于返回商店信息
            $lastData = new LastData();

            // 添加商品数据
            $itemList = [];
            foreach ($shopItems as $shopItem) {
                $dataItem = new DataShopItem();
                $dataItem->setId($shopItem->id);
                $dataItem->setName($shopItem->name);
                $dataItem->setDescription($shopItem->description);
                $dataItem->setCategoryId($shopItem->category_id);
                $dataItem->setItemId($shopItem->item_id);
                $dataItem->setItemQuantity($shopItem->item_quantity);
                $dataItem->setPrice($shopItem->price);
                $dataItem->setCurrencyId($shopItem->currency_id);
                $dataItem->setMaxBuy($shopItem->max_buy);
                $dataItem->setImage($shopItem->image);

                // 设置折扣价格信息
                $dataItem->setOriginalPrice($shopItem->original_price ?? $shopItem->price);
                $dataItem->setDiscountedPrice($shopItem->discounted_price ?? $shopItem->price);
                $dataItem->setHasDiscount($shopItem->has_discount ?? false);
                $dataItem->setDiscountPercentage($shopItem->discount_percentage ?? 0);

                // 如果有促销活动，设置促销信息
                $promotion = $shopItem->getActivePromotion();
                if ($promotion) {
                    $dataItem->setPromotionId($promotion->id);
                    $dataItem->setPromotionName($promotion->name);
                    $dataItem->setPromotionEndTime($promotion->end_time ? $promotion->end_time->timestamp : 0);
                }

                // 如果有购买限制，获取用户已购买数量
                if ($shopItem->max_buy > 0) {
                    $boughtCount = $shopItem->getUserBoughtCount($userId);
                    $dataItem->setBoughtCount($boughtCount);
                }

                $itemList[] = $dataItem;
            }

            // 添加分类数据
            $categoryList = [];
            foreach ($shopCategories as $category) {
                $dataCategory = new DataShopCategory();
                $dataCategory->setId($category->id);
                $dataCategory->setName($category->name);
                $dataCategory->setCode($category->code);
                $dataCategory->setIcon($category->icon);
                $dataCategory->setParentId($category->parent_id);

                $categoryList[] = $dataCategory;
            }

            // 设置商品列表和分类列表到LastData
            $lastData->setShopItems($itemList);
            $lastData->setShopCategories($categoryList);

            // 设置LastData到响应
            $this->response->setLastData($lastData);

            // 设置响应状态
            $this->response->setCode(0);
            $this->response->setMsg('查询成功');

            // 记录日志
            Log::info('用户查询商店成功', [
                'user_id' => $userId,
                'category_id' => $categoryId,
                'item_count' => count($itemList),
                'category_count' => count($categoryList)
            ]);

        } catch (LogicException $e) {
            // 设置错误响应
            $this->response->setCode(400);
            $this->response->setMsg($e->getMessage());

            Log::warning('用户查询商店失败', [
                'user_id' => $this->user_id,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
        } catch (\Exception $e) {
            // 设置错误响应
            $this->response->setCode(500);
            $this->response->setMsg('系统错误，请稍后再试');

            Log::error('查询商店操作异常', [
                'user_id' => $this->user_id,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
        }

        return $response;
    }
}