<?php

namespace App\Models;

use App\Enums\CreditTransactionType;
use Database\Factories\CreditTransactionFactory;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\MorphTo;

/**
 * Eine Zeile im Wallet-Ledger. Append-only: bestehende Buchungen werden nie
 * verändert, Korrekturen erfolgen als Gegenbuchung (Refund).
 */
class CreditTransaction extends Model
{
    /** @use HasFactory<CreditTransactionFactory> */
    use HasFactory;

    protected $fillable = [
        'credit_wallet_id',
        'user_id',
        'amount_credits',
        'balance_after',
        'type',
        'description',
        'reference_type',
        'reference_id',
    ];

    protected function casts(): array
    {
        return [
            'amount_credits' => 'integer',
            'balance_after' => 'integer',
            'type' => CreditTransactionType::class,
        ];
    }

    public function wallet(): BelongsTo
    {
        return $this->belongsTo(CreditWallet::class, 'credit_wallet_id');
    }

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

    public function reference(): MorphTo
    {
        return $this->morphTo();
    }
}