ladill-mini/app/Models/MiniPayment.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class MiniPayment extends Model
{
    public const STATUS_PENDING = 'pending';
    public const STATUS_PAID = 'paid';
    public const STATUS_FAILED = 'failed';

    /** Platform fee on trader payments (Ladill Mini tier). */
    public const PLATFORM_FEE_RATE = 0.05;

    protected $fillable = [
        'qr_code_id',
        'user_id',
        'reference',
        'amount_minor',
        'currency',
        'platform_fee_minor',
        'merchant_amount_minor',
        'payer_name',
        'payer_email',
        'payer_phone',
        'payer_note',
        'status',
        'payment_reference',
        'paid_at',
        'metadata',
    ];

    protected $casts = [
        'amount_minor' => 'integer',
        'platform_fee_minor' => 'integer',
        'merchant_amount_minor' => 'integer',
        'metadata' => 'array',
        'paid_at' => 'datetime',
    ];

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

    public function merchant(): BelongsTo
    {
        return $this->belongsTo(User::class, 'user_id');
    }

    public function amountMajor(): float
    {
        return $this->amount_minor / 100;
    }
}