📄 CouponUsage.php

<?php

namespace App\Modules\Promotions\Models;

use App\Modules\Core\Models\BaseModel;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class CouponUsage extends BaseModel
{
    protected $fillable = ['coupon_id', 'user_id', 'order_id', 'discount_amount', 'used_at'];

    protected function casts(): array
    {
        return [
            'discount_amount' => 'decimal:2',
            'used_at'         => 'datetime',
        ];
    }

    public function coupon(): BelongsTo
    {
        return $this->belongsTo(Coupon::class);
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(\App\Modules\User\Models\User::class);
    }

    public function order(): BelongsTo
    {
        return $this->belongsTo(\App\Modules\Order\Models\Order::class);
    }
}