228 lines
7.5 KiB
PHP
228 lines
7.5 KiB
PHP
<?php
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namespace App\Http\Controllers\Mini;
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use App\Exceptions\RepositoryException;
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use App\Http\Requests\Mini\MiniCartRequest;
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use App\Models\CartModel;
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use App\Models\CustomerLevelModel;
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use App\Models\ProductModel;
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use Illuminate\Http\JsonResponse;
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use Illuminate\Http\Request;
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use Illuminate\Support\Facades\DB;
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use Modules\AnnoRoute\Attribute\DeleteRoute;
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use Modules\AnnoRoute\Attribute\GetRoute;
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use Modules\AnnoRoute\Attribute\PostRoute;
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use Modules\AnnoRoute\Attribute\PutRoute;
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use Modules\AnnoRoute\Attribute\RequestAttribute;
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use Modules\SystemTool\Models\SysFileModel;
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use Throwable;
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/**
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* 小程序购物车
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*/
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#[RequestAttribute('/mini', 'mini', authGuard: 'users')]
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class CartController extends BaseMiniController
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{
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/** decimal(10,2) 上限 */
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private const string MAX_QUANTITY = '99999999.99';
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/**
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* 加购
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* @throws Throwable
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*/
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#[PostRoute('/cart')]
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public function store(MiniCartRequest $request): JsonResponse
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{
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$user = $this->currentUser($request);
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$store = $this->ensureStoreBound($user);
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if ($store->level_id <= 0 || $store->level === null) {
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return $this->error('门店未设置客户等级，无法加购，请联系客服');
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}
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$productId = (int) $request->validated('product_id');
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$product = ProductModel::where('status', ProductModel::STATUS_ON)->find($productId);
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if ($product === null) {
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return $this->error('商品不存在或已下架，请刷新后重试');
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}
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$quantity = (string) $request->validated('quantity');
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$cart = DB::transaction(function () use ($user, $productId, $quantity) {
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$row = CartModel::query()
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->where('user_id', $user->id)
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->where('product_id', $productId)
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->lockForUpdate()
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->first();
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if ($row !== null) {
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$merged = bcadd((string) $row->quantity, $quantity, 2);
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if (bccomp($merged, self::MAX_QUANTITY, 2) > 0) {
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throw new RepositoryException('该商品在购物车中的数量已达上限');
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}
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$row->quantity = $merged;
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$row->save();
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return $row;
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}
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return CartModel::create([
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'user_id' => $user->id,
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'product_id' => $productId,
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'quantity' => $quantity,
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]);
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});
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return $this->success([
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'id' => $cart->id,
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'quantity' => $cart->quantity,
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], '已加入购物车');
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}
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/**
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* 购物车列表
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*/
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#[GetRoute('/cart', authorize: true)]
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public function index(Request $request): JsonResponse
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{
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$user = $this->currentUser($request);
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$store = $this->ensureStoreBound($user);
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$rows = CartModel::query()
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->where('user_id', $user->id)
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->orderBy('id', 'desc')
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->get();
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if ($rows->isEmpty()) {
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return $this->success([
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'items' => [],
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'total_count' => 0,
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'total_quantity' => '0.00',
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'total_amount' => '0.00',
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]);
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}
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$productIds = $rows->pluck('product_id')
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->map(static fn ($id) => (int) $id)
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->unique()->values()->all();
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$products = ProductModel::withTrashed()->whereIn('id', $productIds)->get()->keyBy('id');
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// 门店等级（售价 = 成本价 × (100 + 等级上浮比例) / 100）
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$level = $store->level_id > 0 ? $store->level : null;
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// 图片一次查回（避免 ProductModel::$appends images_arr 的 N+1）。
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// 注意：image_ids 有 imageIds Attribute 访问器（get 返回数组），需取原始值
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$allFileIds = [];
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foreach ($products as $product) {
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foreach (explode(',', (string) $product->getRawOriginal('image_ids')) as $fileId) {
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if ($fileId !== '') {
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$allFileIds[] = (int) $fileId;
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}
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}
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}
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$fileMap = SysFileModel::query()
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->whereIn('id', $allFileIds)
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->get()->keyBy('id');
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$items = [];
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$totalQuantity = '0.00';
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$totalAmount = '0.00';
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foreach ($rows as $row) {
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$product = $products->get($row->product_id);
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$productOn = $product !== null && $product->status === ProductModel::STATUS_ON;
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// 实际价（按门店等级上浮比例换算）；未设等级为 null
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$price = $level === null
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? null
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: CustomerLevelModel::calcLevelPrice((float) ($product?->cost_price ?? 0), $level->percent);
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$buyable = $productOn && $price !== null;
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$quantity = (string) $row->quantity;
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$firstFileId = (int) (explode(',', (string) $product->getRawOriginal('image_ids'))[0] ?? 0);
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$firstFile = $firstFileId > 0 ? $fileMap->get($firstFileId) : null;
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$item = [
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'id' => $row->id,
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'product_id' => $row->product_id,
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'name' => $product->name ?? '',
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'spec' => $product->spec ?? '',
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'unit' => $product->unit ?? '',
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'image' => $firstFile?->file_url ?? '',
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'price' => $price,
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'quantity' => $quantity,
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'amount' => $buyable ? bcmul($price, $quantity, 2) : null,
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'status' => $buyable ? 1 : 0,
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];
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$items[] = $item;
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if ($buyable) {
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$totalQuantity = bcadd($totalQuantity, $quantity, 2);
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$totalAmount = bcadd($totalAmount, $item['amount'], 2);
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}
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}
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return $this->success([
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'items' => $items,
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'total_count' => count($items),
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'total_quantity' => $totalQuantity,
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'total_amount' => $totalAmount,
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]);
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}
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/**
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* 修改数量（校验归属）
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*/
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#[PutRoute('/cart/{id}', authorize: true, where: ['id' => '[0-9]+'])]
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public function update(int $id, MiniCartRequest $request): JsonResponse
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{
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$user = $this->currentUser($request);
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$this->ensureStoreBound($user);
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$row = CartModel::query()
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->where('id', $id)
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->where('user_id', $user->id)
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->first();
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if ($row === null) {
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throw new RepositoryException('购物车项不存在');
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}
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$row->quantity = (string) $request->validated('quantity');
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$row->save();
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return $this->success(['id' => $row->id, 'quantity' => $row->quantity], '已修改数量');
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}
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/**
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* 删除单项（校验归属）
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*/
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#[DeleteRoute('/cart/{id}', authorize: true, where: ['id' => '[0-9]+'])]
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public function destroy(int $id, Request $request): JsonResponse
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{
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$user = $this->currentUser($request);
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$this->ensureStoreBound($user);
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$deleted = CartModel::query()
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->where('id', $id)
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->where('user_id', $user->id)
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->delete();
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if ($deleted === 0) {
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throw new RepositoryException('购物车项不存在');
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}
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return $this->success([], '已删除');
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}
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/**
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* 清空购物车（仅当前用户）
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*/
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#[DeleteRoute('/cart', authorize: true)]
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public function clear(Request $request): JsonResponse
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{
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$user = $this->currentUser($request);
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$this->ensureStoreBound($user);
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CartModel::query()->where('user_id', $user->id)->delete();
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return $this->success([], '购物车已清空');
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}
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}
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