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102 lines
3.2 KiB
102 lines
3.2 KiB
<?php
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namespace App\Http\Controllers;
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use App\Models\CouponTemplate;
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use App\Models\ScoreLog;
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use App\Models\User;
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use App\Models\UserHasCoupon;
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use Carbon\Carbon;
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use Illuminate\Http\Request;
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use Illuminate\Support\Facades\DB;
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class CouponController extends Controller
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{
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/**
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* 处理用户领取优惠券的请求
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*
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* @param Request $request 请求对象
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* @return \Illuminate\Http\JsonResponse 返回 JSON 响应
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*/
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public function store(Request $request)
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{
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// 获取请求中的优惠券模板 ID
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$templateId = $request->input('template_id');
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/**
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* @var $user User
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*/
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// 获取当前登录用户
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$user = auth()->user();
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// 如果用户未登录，返回未授权响应
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if (is_null($user)) {
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return responseJsonAsUnAuthorized('请先登录再领取优惠券');
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}
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// 查找优惠券模板
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$template = CouponTemplate::query()->find($templateId);
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// 如果模板不存在，返回无效优惠券响应
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if (is_null($template)) {
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return responseJsonAsBadRequest('无效的优惠券');
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}
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// 判断优惠券是否过期
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$today = Carbon::today();
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$endDate = Carbon::make($template->end_date);
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// 如果当前日期大于优惠券结束日期，返回过期响应
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if ($today->gt($endDate)) {
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return responseJsonAsBadRequest('优惠券已过期');
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}
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// 检查用户积分是否足够
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if ($user->score_now < $template->score) {
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return responseJsonAsBadRequest("积分不足{$template->score},请先去获取积分");
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}
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// 确保每个用户只能领取一张优惠券
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if ($user->coupons()->where('template_id', $templateId)->exists()) {
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return responseJsonAsBadRequest('你已经领取过优惠券了');
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}
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// 开始数据库事务
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DB::beginTransaction();
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try {
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// 用户减少积分
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if ($template->score > 0) {
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$user->score_now -= $template->score;
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$user->save();
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// 生成积分日志
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$log = new ScoreLog();
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$log->user_id = $user->getKey();
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$log->description = "领取优惠券";
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$log->score = -1 * $template->score; // 记录减少的积分
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$log->save();
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}
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// 创建用户优惠券记录
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$coupon = new UserHasCoupon();
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$coupon->template_id = $template->getKey();
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$coupon->user_id = $user->getKey();
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$coupon->title = $template->title;
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$coupon->amount = $template->amount;
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$coupon->full_amount = $template->full_amount;
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$coupon->start_date = $template->start_date;
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$coupon->end_date = $template->end_date;
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$coupon->save();
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} catch (\Exception $e) {
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// 如果发生异常，回滚事务
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DB::rollBack();
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return responseJsonAsServerError('服务器异常，请稍后再试');
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}
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// 提交事务
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DB::commit();
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// 返回成功响应
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return responseJson(200, '领取成功');
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}
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}
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