<?php

declare(strict_types=1);

namespace paygw_moneta\local\protocol;

use InvalidArgumentException;
use paygw_moneta\local\Money;
use paygw_moneta\local\receipt\JsonNumber;
use paygw_moneta\local\receipt\Receipt;

/**
 * @package paygw_moneta
 * @copyright 2026 Moneta Labs {@link https://moneta.ru/}
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
final class CheckResponse
{
    public function __construct(
        private readonly string $accountId,
        private readonly string $transactionId,
        private readonly Money $amount,
        private readonly ResultCode $resultCode,
        private readonly Signature $signature,
        private readonly string $cms,
    ) {}

    public function getResultCode(): ResultCode
    {
        return $this->resultCode;
    }

    /**
     * XML без атрибутов — для мерчанта без кассового сервиса.
     */
    public function toXml(): CallbackResponse
    {
        return CallbackResponse::xml(
            MntResponseXml::build(
                accountId: $this->accountId,
                transactionId: $this->transactionId,
                resultCode: $this->resultCode,
                amount: $this->amount,
                signature: $this->sign(),
                cms: $this->cms,
            ),
        );
    }

    /**
     * JSON с чеком — для мерчанта с подключённой кассой.
     */
    public function toJson(Receipt $receipt): CallbackResponse
    {
        if (!$receipt->matchesAmount($this->amount)) {
            throw new InvalidArgumentException('Сумма позиций чека не совпадает с суммой заказа.');
        }

        return CallbackResponse::json(JsonNumber::encode([
            'id' => $this->accountId,
            'transactionId' => $this->transactionId,
            'amount' => JsonNumber::placeholder($this->amount),
            'signature' => $this->sign(),
            'resultCode' => (string) $this->resultCode->value,
            'description' => $this->resultCode->description(),
            'cms' => $this->cms,
            'receipt' => $receipt->toCheckReceipt(),
        ]));
    }

    private function sign(): string
    {
        return $this->signature->forResponse($this->resultCode, $this->accountId, $this->transactionId);
    }
}