update

app/Http/Controllers/User/CouponController.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Controllers\User;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use App\Models\Coupon;
+
+class CouponController extends Controller
+{
+    public function check(Request $request)
+    {
+        if (empty($request->input('code'))) {
+            abort(500, '优惠券码不能为空');
+        }
+        $coupon = Coupon::where('code', $request->input('code'))->first();
+        if (!$coupon) {
+            abort(500, '优惠券无效');
+        }
+        if ($coupon->limit_use <= 0 && $coupon->limit_use !== NULL) {
+            abort(500, '优惠券已无可用次数');
+        }
+        if (time() < $coupon->started_at) {
+            abort(500, '优惠券还未到可用时间');
+        }
+        if (time() > $coupon->ended_at) {
+            abort(500, '优惠券已过期');
+        }
+        return response([
+            'data' => $coupon
+        ]);
+    }
+}