<?php

declare(strict_types=1);

namespace MonetaPhpShop\protocol;

use MonetaPhpShop\Money;

/**
 * Ответ на проверочный запрос (Check URL).
 *
 * Формат выбирает настройка «Фискализация чеков»:
 * выключена — XML `MNT_RESPONSE` с `MNT_ATTRIBUTES`, включена — JSON по `cmsspecification.pdf` с чеком.
 */
final class CheckResponse
{
    /** @var string */
    private $accountId;

    /** @var string */
    private $transactionId;

    /** @var Money|null */
    private $amount;

    /** @var ResultCode */
    private $resultCode;

    /** @var Signature */
    private $signature;

    /** @var string */
    private $cms;

    /**
     * @param string     $transactionId ровно то, что прислал сервис
     * @param Money|null $amount сумма заказа; null — заказ не найден
     */
    public function __construct(
        string $accountId,
        string $transactionId,
        ?Money $amount,
        ResultCode $resultCode,
        Signature $signature,
        string $cms
    ) {
        $this->accountId = $accountId;
        $this->transactionId = $transactionId;
        $this->amount = $amount;
        $this->resultCode = $resultCode;
        $this->signature = $signature;
        $this->cms = $cms;
    }

    public function getResultCode(): ResultCode
    {
        return $this->resultCode;
    }

    /**
     * @param array<string, string> $attributes `INVENTORY`, `CLIENT`, `CUSTOMER`, `PHONE` — как у Pay URL
     */
    public function toXml(array $attributes = []): CallbackResponse
    {
        return CallbackResponse::xml(
            MntResponseXml::build(
                $this->accountId,
                $this->transactionId,
                $this->resultCode,
                $this->amount,
                $this->sign(),
                $this->cms,
                $attributes,
            ),
        );
    }

    /**
     * @param array<string, mixed> $receipt объект `receipt` схемы (`client`, `items`); денежные
     *     поля — через {@see JsonNumber::placeholder()}, строки в UTF-8
     */
    public function toJson(array $receipt): CallbackResponse
    {
        $payload = [
            'id' => $this->accountId,
            'transactionId' => $this->transactionId,
        ];

        if ($this->amount !== null) {
            $payload['amount'] = JsonNumber::placeholder($this->amount);
        }

        $payload += [
            'signature' => $this->sign(),
            'resultCode' => (string) $this->resultCode->getValue(),
            'description' => $this->resultCode->description(),
            'cms' => $this->cms,
            'receipt' => $receipt,
        ];

        return CallbackResponse::json(JsonNumber::encode($payload));
    }

    private function sign(): string
    {
        return $this->signature->forResponse($this->resultCode, $this->accountId, $this->transactionId);
    }
}