<?php
IncludeModuleLangFile(__FILE__);

abstract class CBitrixCloudWebService
{
	private $debug = false;
	private $timeout = 0;
	private $server = /*.(Bitrix\Main\Web\HttpClient).*/ null;

	/**
	 * Returns URL to update policy
	 *
	 * @param array[string]string $arParams
	 * @return string
	 *
	 */
	protected abstract function getActionURL($arParams = /*.(array[string]string).*/ []);

	/**
	 * Returns action response XML
	 *
	 * @param string $action
	 * @return CDataXML
	 * @throws CBitrixCloudException
	 */
	protected function action($action)
	{
		$url = $this->getActionURL([
			'action' => $action,
			'debug' => ($this->debug ? 'y' : 'n'),
		]);

		$this->server = new Bitrix\Main\Web\HttpClient([
			'redirect' => true,
		]);
		if ($this->timeout > 0)
		{
			$this->server->setTimeout($this->timeout);
		}

		$strXML = $this->server->get($url);
		if ($strXML === false || !$this->server->getStatus())
		{
			$errors = $this->server->getError();
			throw new CBitrixCloudException(GetMessage('BCL_CDN_WS_SERVER', [
				'#STATUS#' => $errors ? implode(' ', $errors) : '-1',
			]), '');
		}

		if ($this->server->getStatus() != 200)
		{
			throw new CBitrixCloudException(GetMessage('BCL_CDN_WS_SERVER', [
				'#STATUS#' => (string)$this->server->getStatus(),
			]), '');
		}

		$obXML = new CDataXML;
		if (!$obXML->LoadString($strXML))
		{
			throw new CBitrixCloudException(GetMessage('BCL_CDN_WS_XML_PARSE', [
				'#CODE#' => '1',
			]), '');
		}

		/* @var CDataXMLNode $node */
		$node = $obXML->SelectNodes('/error/code');
		if (is_object($node))
		{
			$error_code = $node->textContent();
			$message_id = 'BCL_CDN_WS_' . $error_code;
			/*
			GetMessage("BCL_CDN_WS_LICENSE_EXPIRE");
			GetMessage("BCL_CDN_WS_LICENSE_NOT_FOUND");
			GetMessage("BCL_CDN_WS_QUOTA_EXCEEDED");
			GetMessage("BCL_CDN_WS_CMS_LICENSE_NOT_FOUND");
			GetMessage("BCL_CDN_WS_DOMAIN_NOT_REACHABLE");
			GetMessage("BCL_CDN_WS_LICENSE_DEMO");
			GetMessage("BCL_CDN_WS_LICENSE_NOT_ACTIVE");
			GetMessage("BCL_CDN_WS_NOT_POWERED_BY_BITRIX_CMS");
			GetMessage("BCL_CDN_WS_WRONG_DOMAIN_SPECIFIED");
			*/

			$debug_content = '';
			$node = $obXML->SelectNodes('/error/debug');
			if (is_object($node))
			{
				$debug_content = $node->textContent();
			}

			if (HasMessage($message_id))
			{
				throw new CBitrixCloudException(GetMessage($message_id), $error_code, $debug_content);
			}
			else
			{
				throw new CBitrixCloudException(GetMessage('BCL_CDN_WS_SERVER', [
					'#STATUS#' => $error_code,
				]), $error_code, $debug_content);
			}
		}

		return $obXML;
	}

	/**
	 * Sets debug mode for remote service.
	 * Returns previous mode value.
	 *
	 * @param bool $bActive
	 * @return bool
	 *
	 */
	public function setDebug($bActive)
	{
		$result = $this->debug;
		$this->debug = ($bActive === true);
		return $result;
	}

	/**
	 *
	 * @param int $timeout
	 * @return int
	 *
	 */
	public function setTimeout($timeout)
	{
		$this->timeout = $timeout > 0 ? intval($timeout) : 0;
		return $this->timeout;
	}

	/**
	 * Returns remote server status.
	 * Return null if no action was performed.
	 *
	 * @return mixed
	 *
	 */
	public function getServerStatus()
	{
		return isset($this->server) ? $this->server->getStatus() : null;
	}

	/**
	 * Returns remote server response body.
	 * Return null if no action was performed.
	 *
	 * @return mixed
	 *
	 */
	public function getServerResult()
	{
		return isset($this->server) ? $this->server->getResult() : null;
	}
}