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app/Http/Controllers/Mini/ProductController.php

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+<?php
+
+namespace App\Http\Controllers\Mini;
+
+use App\Exceptions\RepositoryException;
+use App\Models\ProductCategoryModel;
+use App\Models\ProductModel;
+use App\Models\ProductPriceModel;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Modules\AnnoRoute\Attribute\GetRoute;
+use Modules\AnnoRoute\Attribute\RequestAttribute;
+
+/**
+ * 小程序商品（分类树 + 列表，价格 = 当前门店客户等级价）
+ */
+#[RequestAttribute('/mini', 'mini', authGuard: 'users')]
+class ProductController extends BaseMiniController
+{
+    /** 分类树（仅含上架商品的分类及其祖先，保证树结构完整） */
+    #[GetRoute('/product/categories', authorize: true)]
+    public function categories(): JsonResponse
+    {
+        $activeCategoryIds = ProductModel::query()
+            ->where('status', ProductModel::STATUS_ON)
+            ->distinct()
+            ->pluck('category_id')
+            ->map(static fn ($id) => (int) $id)
+            ->filter(static fn (int $id) => $id > 0);
+
+        $categories = ProductCategoryModel::query()
+            ->where('status', ProductCategoryModel::STATUS_NORMAL)
+            ->get()
+            ->keyBy('id');
+
+        // 保留有上架商品的分类 + 其全部祖先
+        $keep = [];
+        foreach ($activeCategoryIds as $categoryId) {
+            $cursor = $categoryId;
+            $guard = 0;
+            while ($cursor > 0 && $guard++ < 20 && $categories->has($cursor)) {
+                $keep[$cursor] = true;
+                $cursor = (int) $categories[$cursor]->parent_id;
+            }
+        }
+
+        $filtered = array_values(array_filter(
+            $categories->toArray(),
+            static fn (array $item) => isset($keep[$item['id']])
+        ));
+
+        return $this->success(ProductCategoryModel::buildTree($filtered));
+    }
+
+    /**
+     * 商品列表：价格取当前门店客户等级价（未绑等级的门店报错）；
+     * ?category_id=&keyword=&page=&pageSize=
+     */
+    #[GetRoute('/product/list', authorize: true)]
+    public function products(Request $request): JsonResponse
+    {
+        $user = $this->currentUser($request);
+        $store = $this->ensureStoreBound($user);
+        if ($store->level_id <= 0) {
+            throw new RepositoryException('门店未设置客户等级，无法展示价格，请联系客服');
+        }
+
+        $query = ProductModel::query()
+            ->where('status', ProductModel::STATUS_ON)
+            ->with('category:id,name')
+            ->with(['prices' => static fn ($q) => $q->where('level_id', $store->level_id)]);
+
+        $categoryId = (int) $request->input('category_id', 0);
+        if ($categoryId > 0) {
+            $query->where('category_id', $categoryId);
+        }
+        $keyword = trim((string) $request->input('keyword', ''));
+        if ($keyword !== '') {
+            $query->where(static function ($q) use ($keyword) {
+                $q->where('name', 'like', '%' . $keyword . '%')
+                    ->orWhere('spec', 'like', '%' . $keyword . '%');
+            });
+        }
+
+        $pageSize = (int) $request->input('pageSize', 10);
+        $data = $query->orderBy('sort')
+            ->orderBy('id')
+            ->paginate($pageSize)
+            ->toArray();
+
+        // 扁平化价格：prices[0].price → price（未设等级价为 null）
+        foreach ($data['data'] as &$row) {
+            $row['price'] = $row['prices'][0]['price'] ?? null;
+            unset($row['prices']);
+        }
+
+        return $this->success($data);
+    }
+}