<?php

declare(strict_types=1);

namespace MonetaPhpShop\protocol;

/**
 * Тело и тип ответа модуля на Check URL / Pay URL.
 */
final class CallbackResponse
{
    public const CONTENT_TYPE_XML = 'application/xml; charset=UTF-8';
    public const CONTENT_TYPE_JSON = 'application/json; charset=UTF-8';
    public const CONTENT_TYPE_TEXT = 'text/plain; charset=UTF-8';

    /** @var string */
    private $contentType;

    /** @var string */
    private $body;

    private function __construct(string $contentType, string $body)
    {
        $this->contentType = $contentType;
        $this->body = $body;
    }

    /**
     * Отказ без подробностей: причина пишется только в журнал модуля.
     */
    public static function fail(): self
    {
        return new self(self::CONTENT_TYPE_TEXT, AssistantProtocol::TEXT_FAIL);
    }

    public static function xml(string $body): self
    {
        return new self(self::CONTENT_TYPE_XML, $body);
    }

    public static function json(string $body): self
    {
        return new self(self::CONTENT_TYPE_JSON, $body);
    }

    public function getContentType(): string
    {
        return $this->contentType;
    }

    public function getBody(): string
    {
        return $this->body;
    }
}