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<?php
/**
 * This code is licensed under AGPLv3 license or Afterlogic Software License
 * if commercial version of the product was purchased.
 * For full statements of the licenses see LICENSE-AFTERLOGIC and LICENSE-AGPL3 files.
 */

namespace Aurora\System\Managers;

/**
 * @license https://www.gnu.org/licenses/agpl-3.0.html AGPL-3.0
 * @license https://afterlogic.com/products/common-licensing Afterlogic Software License
 * @copyright Copyright (c) 2019, Afterlogic Corp.
 *
 * @package Api
 */
class Response
{
    protected static $sMethod = null;

public static $objectNames = array(
            'Aurora\Modules\Mail\Classes\MessageCollection' => 'MessageCollection',
            'Aurora\Modules\Mail\Classes\Message' => 'Message',
            'Aurora\Modules\Mail\Classes\FolderCollection' => 'FolderCollection',
            'Aurora\Modules\Mail\Classes\Folder' => 'Folder'
    );

public static function GetMethod()
    {
        return  self::$sMethod;
    }

public static function SetMethod($sMethod)
    {
        self::$sMethod = $sMethod;
    }

/**
     * @param string $sObjectName
     *
     * @return string
     */
    public static function GetObjectName($sObjectName)
    {
        return !empty(self::$objectNames[$sObjectName]) ? self::$objectNames[$sObjectName] : $sObjectName;
    }

/**
     * @param object $oData
     *
     * @return array | false
     */
    public static function objectWrapper($oData, $aParameters = array())
    {
        $mResult = false;
        if (\is_object($oData)) {
            $sObjectName = \get_class($oData);
            $mResult = array(
                '@Object' => self::GetObjectName($sObjectName)
            );

if ($oData instanceof \MailSo\Base\Collection) {
                $mResult['@Object'] = 'Collection/' . $mResult['@Object'];
                $mResult['@Count'] = $oData->Count();
                $mResult['@Collection'] = self::GetResponseObject($oData->CloneAsArray(), $aParameters);
            } else {
                $mResult['@Object'] = 'Object/' . $mResult['@Object'];
            }
        }

return $mResult;
    }

/**
     * @param mixed $mResponse
     *
     * @return mixed
     */
    public static function GetResponseObject($mResponse, $aParameters = array())
    {
        $mResult = null;

if (\is_object($mResponse) && !($mResponse instanceof \stdClass)) {
            if (\method_exists($mResponse, 'toResponseArray')) {
                $aArgs = [$mResponse, $aParameters];
                \Aurora\System\Api::GetModuleManager()->broadcastEvent(
                    'System',
                    'toResponseArray' . \Aurora\System\Module\AbstractModule::$Delimiter . 'before',
                    $aArgs
                );

$mResult = \array_merge(
                    self::objectWrapper($mResponse, $aParameters),
                    $mResponse->toResponseArray($aParameters)
                );

\Aurora\System\Api::GetModuleManager()->broadcastEvent(
                    'System',
                    'toResponseArray' . \Aurora\System\Module\AbstractModule::$Delimiter . 'after',
                    $aArgs,
                    $mResult
                );
            } else {
                $mResult = \array_merge(
                    self::objectWrapper($mResponse, $aParameters),
                    self::CollectionToResponseArray($mResponse, $aParameters)
                );
            }
        } elseif ($mResponse instanceof \stdClass) {
            $mResponse = (array) $mResponse;

foreach ($mResponse as $iKey => $oItem) {
                $mResponse[$iKey] = self::GetResponseObject($oItem, $aParameters);
            }

$mResult = $mResponse;
        } elseif (\is_array($mResponse)) {
            // if (!\Aurora\System\Utils::IsAssocArray($mResponse))
            // {
            // 	// rebuild array indexes
            // 	$mResponse = array_values($mResponse);
            // }
            foreach ($mResponse as $iKey => $oItem) {
                $mResponse[$iKey] = self::GetResponseObject($oItem, $aParameters);
            }

$mResult = $mResponse;
        } else {
            $mResult = $mResponse;
        }

unset($mResponse);

return $mResult;
    }

/**
     * @param bool $bDownload
     * @param string $sContentType
     * @param string $sFileName
     *
     * @return void
     */
    public static function OutputHeaders($bDownload, $sContentType, $sFileName)
    {
        if ($bDownload) {
            \header('Content-Type: ' . $sContentType, true);
        } else {
            $aParts = \explode('/', $sContentType, 2);
            if (\in_array(\strtolower($aParts[0]), array('image', 'video', 'audio')) ||
                \in_array(\strtolower($sContentType), array('application/pdf', 'application/x-pdf', 'text/html'))) {
                \header('Content-Type: ' . $sContentType, true);
            } else {
                \header('Content-Type: text/plain; charset=', true);
            }
        }

\header('Content-Disposition: ' . ($bDownload ? 'attachment' : 'inline') . '; ' .
            \trim(\MailSo\Base\Utils::EncodeHeaderUtf8AttributeValue('filename', $sFileName)), true);

\header('Accept-Ranges: none', true);
    }

/**
     * @param string $sKey
     *
     * @return void
     */
    public static function cacheByKey($sKey)
    {
        if (!empty($sKey)) {
            $iUtcTimeStamp = time();
            $iExpireTime = 3600 * 24 * 5;

\header('Cache-Control: private', true);
            \header('Pragma: private', true);
            \header('Etag: ' . \md5('Etag:' . \md5($sKey)), true);
            \header('Last-Modified: ' . \gmdate('D, d M Y H:i:s', $iUtcTimeStamp - $iExpireTime) . ' UTC', true);
            \header('Expires: ' . \gmdate('D, j M Y H:i:s', $iUtcTimeStamp + $iExpireTime) . ' UTC', true);
        }
    }

/**
     * @param string $sKey
     *
     * @return void
     */
    public static function verifyCacheByKey($sKey)
    {
        if (!empty($sKey)) {
            $oHttp = \MailSo\Base\Http::NewInstance();
            $sIfModifiedSince = $oHttp->GetHeader('If-Modified-Since');
            if (!empty($sIfModifiedSince)) {
                $oHttp->StatusHeader(304);
                self::cacheByKey($sKey);
                exit();
            }
        }
    }

public static function CollectionToResponseArray($oCollection, $aParameters = array())
    {
        $aResult = array();
        if ($oCollection instanceof \MailSo\Base\Collection) {
            $sObjectName = \get_class($oCollection);

$aResult = array(
                '@Object' => 'Collection/' . self::GetObjectName($sObjectName),
                '@Count' => $oCollection->Count(),
                '@Collection' => self::GetResponseObject($oCollection->CloneAsArray(), $aParameters)
            );
        }

return $aResult;
    }

/**
     * @param string $sMethod
     * @param mixed $mResult = false
     *
     * @return array
     */
    public static function DefaultResponse($sModuleName, $sMethod, $mResult = false)
    {
        $aResult = [
            'AuthenticatedUserId' => \Aurora\System\Api::getAuthenticatedUserId(),
            '@Time' => 0
        ];
        if (is_array($mResult)) {
            foreach ($mResult as $aValue) {
                if ($aValue['Module'] === $sModuleName && $aValue['Method'] === $sMethod) {
                    $aResult['Module'] = $sModuleName;
                    $aResult['Method'] = $sMethod;
                    $aResult['Result'] = self::GetResponseObject(
                        $aValue['Result'],
                        [
                            'Module' => $aValue['Module'],
                            'Method' => $aValue['Method'],
                            'Parameters' => $aValue['Parameters']
                        ]
                    );
                } elseif (\Aurora\System\Api::$bDebug) {
                    $aResult['Stack'][] =  self::GetResponseObject(
                        $aValue['Result'],
                        [
                            'Module' => $aValue['Module'],
                            'Method' => $aValue['Method'],
                            'Parameters' => $aValue['Parameters']
                        ]
                    );
                }
            }
        }
        $aResult['SubscriptionsResult'] = \Aurora\System\Api::GetModuleManager()->GetSubscriptionsResult();
        if (defined('AU_APP_START')) {
            $aResult['@Time'] = number_format(microtime(true) - AU_APP_START, 4);
            \Aurora\System\Api::Log('@Time: ' . $aResult['@Time']);
        }
        if (defined('AU_API_INIT')) {
            $aResult['@TimeApiInit'] = number_format(AU_API_INIT, 4);
            \Aurora\System\Api::Log('@TimeApiInit: ' . $aResult['@TimeApiInit']);
        }

$sLoggerGuid = \Aurora\System\Api::GetLoggerGuid();
        if (!empty($sLoggerGuid)) {
            $aResult['@LoggerGuid'] = \MailSo\Log\Logger::Guid();
        }

if (version_compare(phpversion(), '7.1', '>=')) {
            ini_set('serialize_precision', -1);
        }

return $aResult;
    }

/**
     * @param string $sMethod
     * @param int $iErrorCode
     * @param string $sErrorMessage
     * @param array $aAdditionalParams = null
     *
     * @return array
     */
    public static function FalseResponse($sMethod, $iErrorCode = null, $sErrorMessage = null, $aAdditionalParams = null, $sModule = null)
    {
        $aResponseItem = self::DefaultResponse($sModule, $sMethod, false);

if (null !== $iErrorCode) {
            $aResponseItem['ErrorCode'] = (int) $iErrorCode;
            if (null !== $sErrorMessage) {
                $aResponseItem['ErrorMessage'] = null === $sErrorMessage ? '' : (string) $sErrorMessage;
            }
        }

if (null !== $sModule) {
            $aResponseItem['Module'] = $sModule;
        }

if (is_array($aAdditionalParams)) {
            foreach ($aAdditionalParams as $sKey => $mValue) {
                $aResponseItem[$sKey] = $mValue;
            }
        }

return $aResponseItem;
    }

/**
     * @param string $sActionName
     * @param \Exception $oException
     * @param array $aAdditionalParams = null
     *
     * @return array
     */
    public static function ExceptionResponse($sActionName, $oException, $aAdditionalParams = null)
    {
        $iErrorCode = null;
        $sErrorMessage = null;
        $sModule = '';

$oSettings = & \Aurora\System\Api::GetSettings();
        $bShowError = $oSettings && $oSettings->GetValue('DisplayServerErrorInformation', false);

if ($oException instanceof \Aurora\System\Exceptions\ApiException) {
            $iErrorCode = $oException->getCode();
            $sErrorMessage = null;
            if ($bShowError) {
                $sErrorMessage = $oException->getMessage();
                if (empty($sErrorMessage) || 'ApiException' === $sErrorMessage) {
                    $sErrorMessage = null;
                }
            }
            $oModule = $oException->GetModule();
            if ($oModule) {
                $sModule = $oModule::GetName();
            }
        } elseif ($bShowError && $oException instanceof \MailSo\Imap\Exceptions\ResponseException) {
            $iErrorCode = \Aurora\System\Notifications::MailServerError;

$oResponse = /* @var $oResponse \MailSo\Imap\Response */ $oException->GetLastResponse();
            if ($oResponse instanceof \MailSo\Imap\Response) {
                $sErrorMessage = $oResponse instanceof \MailSo\Imap\Response ?
                    $oResponse->Tag . ' ' . $oResponse->StatusOrIndex . ' ' . $oResponse->HumanReadable : null;
            }
        } else {
            $iErrorCode = \Aurora\System\Notifications::UnknownError;
            //			$sErrorMessage = $oException->getCode().' - '.$oException->getMessage();
        }

return self::FalseResponse($sActionName, $iErrorCode, $sErrorMessage, $aAdditionalParams, $sModule);
    }

public static function GetJsonFromObject($sFormat, $aResponseItem)
    {
        if ($sFormat !== 'Raw') {
            @header('Content-Type: application/json; charset=utf-8');
        }
        return \MailSo\Base\Utils::Php2js($aResponseItem, \Aurora\System\Api::SystemLogger());
    }
}