Add all files

app/Models/Coupon.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Coupon extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'type',
+        'time',
+        'code',
+        'value',
+        'max_uses',
+        'max_uses_per_user',
+        'starts_at',
+        'expires_at',
+        'recurring',
+    ];
+
+    protected $casts = [
+        'starts_at' => 'datetime',
+        'expires_at' => 'datetime',
+        'max_uses' => 'integer',
+        'max_uses_per_user' => 'integer',
+    ];
+
+    /**
+     * Get the products that belong to the option.
+     */
+    public function products()
+    {
+        return $this->belongsToMany(Product::class, 'coupon_products');
+    }
+
+    public function services()
+    {
+        return $this->hasMany(Service::class);
+    }
+
+    /**
+     * Check if the user has exceeded the maximum allowed uses of this coupon
+     *
+     * @param  int  $userId
+     */
+    public function hasExceededMaxUsesPerUser($userId): bool
+    {
+        if (empty($this->max_uses_per_user)) {
+            return false;
+        }
+
+        return $this->services()
+            ->where('user_id', $userId)
+            ->count() >= $this->max_uses_per_user;
+    }
+}