<?php

/**
 * @copyright (C) 2013 iJoomla, Inc. - All rights reserved.
 * @license GNU General Public License, version 2 (http://www.gnu.org/licenses/gpl-2.0.html)
 * @author iJoomla.com <webmaster@ijoomla.com>
 * @url https://www.jomsocial.com/license-agreement
 * The PHP code portions are distributed under the GPL license. If not otherwise stated, all images, manuals, cascading style sheets, and included JavaScript *are NOT GPL, and are released under the IJOOMLA Proprietary Use License v1.0
 * More info at https://www.jomsocial.com/license-agreement
 */

use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Filter\InputFilter;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Filesystem\File;
use Joomla\Filesystem\Folder;

defined('_JEXEC') or die();

class CommunityFilesController extends CommunityBaseController {

    public function ajaxFileUploadForm($type = NULL, $id = NULL) {
        $my = CFactory::getUser();

        if ($my->id == 0) {
            return $this->ajaxBlockUnregister();
        }

        $params      = ComponentHelper::getParams('com_media');
        $fileType    = version_compare(JVERSION, '4', 'ge') ? $params->get('restrict_uploads_extensions', '') : $params->get('upload_extensions', '');

        $config      = CFactory::getConfig();
        $maxFileSize = $config->get('filemaxuploadsize');
        $url         = 'index.php?option=com_community&view=files&task=multiUpload&type=' . $type . '&id=' . $id;
        $tmpl        = new CTemplate();

        // remove duplicates
        $fileType = implode(',', array_unique(explode(',', strtolower($fileType))));

        $tmpl
            ->set('fileType', $fileType)
            ->set('maxFileSize', $maxFileSize)
            ->set('url', $url);

        $json = array(
            'title' => Text::_('COM_COMMUNITY_FILES_UPLOAD'),
            'html'  => $tmpl->fetch('files.multiupload')
        );

        die( json_encode($json) );
    }

    public function multiUpload() {
        $mainframe = Factory::getApplication();
        $jinput    = $mainframe->input;

        $my        = CFactory::getUser();
        $config    = CFactory::getConfig();
        $type      = $jinput->get('type', NULL, 'NONE');
        $id        = $jinput->get('id', '0', 'Int');

        if ($my->id == 0) {
            $tokenId = $jinput->request->get('token', '', 'STRING');
            $userId  = $jinput->request->get('uploaderid', '', 'INT');
            $my      = CFactory::getUserFromTokenId($tokenId, $userId);
            $session = Factory::getSession();

            $session->set('user', $my);
        }

        $parentTable = JTable::getInstance(ucfirst($type), 'CTable');
        $parentTable && $parentTable->load($id);

        $table = JTable::getInstance('File', 'CTable');

        $_file = $jinput->files->get('file', null, 'raw');

        $fileLib = new CFilesLibrary();

        if (CLimitsLibrary::exceedDaily('files', $my->id)) {
            $json = array('msg' => Text::_('COM_COMMUNITY_FILES_LIMIT_REACHED'));
            echo json_encode($json);
            exit;
        }

        if($type == 'discussion' && !CLimitsHelper::exceededGroupFileUpload($parentTable->groupid))
        {
            $json = array('msg' => Text::_('COM_COMMUNITY_FILES_LIMIT_REACHED'));
            echo json_encode($json);
            exit;
        }

        $now = new JDate();


        $ext = pathinfo($_file['name']);

        $file = new stdClass();
        $file->creator = $my->id;
        $file->filesize = sprintf("%u", $_file['size']);
        $file->name = CStringHelper::substr($_file['name'], 0, CStringHelper::strlen($_file['name']) - (CStringHelper::strlen($ext['extension']) + 1));
        $file->created = $now->toSql();
        $file->type = CFileHelper::getExtensionIcon(CFileHelper::getFileExtension($_file['name']));
        $fileName = ApplicationHelper::getHash($_file['name'] . time()) . CStringHelper::substr($_file['name'], CStringHelper::strlen($_file['name']) - (CStringHelper::strlen($ext['extension']) + 1));

        if ($_file['error'] > 0 && $_file['error'] !== 'UPLOAD_ERR_OK') {
            $json = array('msg' => Text::sprintf('COM_COMMUNITY_PHOTOS_UPLOAD_ERROR', $_file['error']));
            echo json_encode($json);
            exit;
        }

        if ($type != 'activities') {
            if (!$fileLib->checkType($_file['name'])) {
                $json = array('msg' => Text::_('COM_COMMUNITY_IMAGE_FILE_NOT_SUPPORTED'));
                echo json_encode($json);
                exit;
            }
        }

        switch ($type) {
            case 'discussion':
                    $file->discussionid = $parentTable->id;
                    $file->groupid = $parentTable->groupid;
                    $file->filepath = 'images/files' . '/' . $type . '/' . $file->discussionid . '/' . $fileName;
                    break;
            case 'bulletin':
                    $file->bulletinid = $parentTable->id;
                    $file->groupid = $parentTable->groupid;
                    $file->filepath = 'images/files' . '/' . $type . '/' . $file->bulletinid . '/' . $fileName;
                    break;
            case 'message':
            case 'chat':
            case 'groupchat':
                $file->messageid = -1; // set as -1 just in case this is not used and cron can clear it later
                if($id){
                    $file->filepath = 'images/files/' . $type . '/' .$id.'/'. $fileName;

                    if (!is_file(JPATH_ROOT . '/images/files/'.$type.'/'. $id)) {
                        Folder::create(JPATH_ROOT . '/images/files/' .$type . '/'.$id, (int) octdec($config->get('folderpermissionsphoto')));
                        File::copy(JPATH_ROOT . '/components/com_community/index.html', JPATH_ROOT . '/images/files/' . $type . '/'.$id.'/index.html');
                    }

                    File::copy($_file['tmp_name'], JPATH_ROOT .'/'. $file->filepath);
                }else{
                    //this could be from new message, and there is no id given
                    $file->filepath = 'images/files/' . $type . '/temp/'. $fileName;

                    //create the folder here as the logic for bulletin and discussion is not the same
                    if (!is_file(JPATH_ROOT . '/' . $type . '/temp')) {
                        Folder::create(JPATH_ROOT . '/images/files' . '/' . $type . '/temp', (int) octdec($config->get('folderpermissionsphoto')));
                        File::copy(JPATH_ROOT . '/components/com_community/index.html', JPATH_ROOT . '/files' . '/' . $type . '/temp/index.html');
                    }

                    File::copy($_file['tmp_name'], JPATH_ROOT . '/images/files' . '/' . $type . '/temp/' . $fileName);
                }
                break;
            case 'activities':
                $file->filepath = 'images/files/' . $type . '/' . $my->id . '/' . $fileName;
                $file->actid = -1;
                if (!is_file(JPATH_ROOT . '/images/files/' . $type . '/' . $my->id)) {
                    Folder::create(JPATH_ROOT . '/images/files/' . $type . '/' . $my->id);
                    File::copy(JPATH_ROOT . '/components/com_community/index.html', JPATH_ROOT . '/images/files/' . $type . '/' . $my->id . '/index.html');
                }

                File::copy($_file['tmp_name'],  JPATH_ROOT . '/' . $file->filepath);
                break;
        }

        if(!in_array( $type, array('message', 'chat', 'groupchat', 'activities'))){
            if (!is_file(JPATH_ROOT . '/' . $type . '/' . $parentTable->id)) {
                Folder::create(JPATH_ROOT . '/images/files' . '/' . $type . '/' . $parentTable->id, (int) octdec($config->get('folderpermissionsphoto')));
                File::copy(JPATH_ROOT . '/components/com_community/index.html', JPATH_ROOT . '/files' . '/' . $type . '/' . $parentTable->id . '/index.html');
            }

            File::copy($_file['tmp_name'], JPATH_ROOT . '/images/files' . '/' . $type . '/' . $parentTable->id . '/' . $fileName);
        }
        
        $table->bind($file);

        $table->store();

        $params = new CParameter('');
        switch ($type) {
            case 'discussion': {
                    // Get repliers for this discussion and notify the discussion creator too
                    $discussionModel = CFactory::getModel('Discussions');
                    $discussion = JTable::getInstance('Discussion', 'CTable');
                    $discussion->load($parentTable->id);
                    $users = $discussionModel->getRepliers($discussion->id, $discussion->groupid);
                    $users[] = $discussion->creator;

                    // The person who post this, should not be getting notification email
                    $key = array_search($my->id, $users);

                    if ($key !== false && isset($users[$key])) {
                        unset($users[$key]);
                    }
                    $params->set('url', 'index.php?option=com_community&view=groups&task=viewdiscussion&groupid=' . $discussion->groupid . '&topicid=' . $discussion->id);

                    $params->set('filename', $_file['name']);
                    $params->set('discussion', $discussion->title);
                    $params->set('discussion_url', 'index.php?option=com_community&view=groups&task=viewdiscussion&groupid=' . $discussion->groupid . '&topicid=' . $discussion->id);
                    CNotificationLibrary::add('groups_discussion_newfile', $my->id, $users, Text::sprintf('COM_COMMUNITY_GROUP_DISCUSSION_NEW_FILE_SUBJECT'), '', 'groups.discussion.newfile', $params);
                    break;
                }
            case 'bulletin': {
                    break;
                }
        }
        $json = array('id' => $table->id, 'nane' => $table->name, 'path' => Uri::root().$table->filepath);
        die(json_encode($json));
    }

    public function ajaxSaveName($id = null, $name = null) {
        $objResponse = new JAXResponse();
        $filter = InputFilter::getInstance();
        $id = $filter->clean($id, 'int');
        $name = $filter->clean($name, 'string');

        $my = CFactory::getUser();
        $file = JTable::getInstance('File', 'CTable');

        $file->load($id);
        $file->name = $name;

        $file->store();

        return $objResponse->sendResponse();
    }

    public function downloadFile() {
        $mainframe = Factory::getApplication();
        $jinput = $mainframe->input;

        $type = $jinput->get('type', '', 'NONE');
        $id = $jinput->get('id', 0, 'Int');

        $fileLib = new CFilesLibrary();

        $my = CFactory::getUser();
        $cTable = JTable::getInstance('File', 'CTable');
        $cTable->load($id);

        if ($type == 'activity') {
            if (!$my->authorise('community.download', 'files.' . $type, $cTable->actid)) {
                $mainframe->enqueueMessage(Text::_('COM_COMMUNITY_PERMISSION_DENIED_WARNING'), 'error');
                $mainframe->redirect(CRoute::_('index.php?option=com_community' . $groupLink, false));
                exit;
            }
        } else {
            $parentId = $fileLib->getParentId($type, $cTable);

            // if (!$my->authorise('community.download', 'files.' . $type, $parentId)) {
            //     echo Text::_('COM_COMMUNITY_FILE_DOWNLOAD_WARNING');
            //     exit;
            // }
        }

        if ($cTable->storage == 'file') {
            $fileLib->downloadFile($cTable->filepath, $cTable->name);
        } else {
            $fileLib->S3DownloadFile($cTable);
        }

        $cTable->hits += 1;

        $cTable->store();
        exit;
    }

    public function ajaxDeleteFile($type = null, $id = null) {
        $json = array();

        $filter = InputFilter::getInstance();
        $id = $filter->clean($id, 'int');

        $file = JTable::getInstance('File', 'CTable');
        $file->load($id);

        $my = CFactory::getUser();

        if (!$my->authorise('community.delete', 'files.' . $type, $file)) {
            $json['error'] = Text::_('COM_COMMUNITY_FILE_DELETE_PERMISSION_ERROR');
        }else {
            if($file->delete($id)) {
                $json['success'] = true;
                $json['lang'] = Text::_('COM_COMMUNITY_FILES_NO_FILE');
            }
        }

        die( json_encode($json) );
    }

    public function ajaxviewFiles($type, $parentId) {
        $objResponse = new JAXResponse();

        $table = JTable::getInstance(ucfirst($type), 'CTable');
        $table->load($parentId);

        $limit = 5;

        $tmpl = new CTemplate();
        $tmpl->set('type', $type);
        $tmpl->set('gid', $parentId);

        $html = $tmpl->fetch('files.allfiles');

        $objResponse->addScriptCall('cWindowAddContent', $html);
        $objResponse->addAssign('cwin_logo', 'innerHTML', Text::_('COM_COMMUNITY_FILES_VIEW_TITLE'));

        $objResponse->addScriptCall('joms.file.getFileList', 'mostdownload', $parentId, 0, $limit, $type);

        return $objResponse->sendResponse();
    }

    public function ajaxFileDownload($type, $id) {
        $json = array();

        $filter = InputFilter::getInstance();
        $id = $filter->clean($id, 'int');
        $type = $filter->clean($type, 'string');

        //CFactory::load( 'libraries' , 'files' );
        $fileLib = new CFilesLibrary();

        $my = CFactory::getUser();
        $cTable = JTable::getInstance('File', 'CTable');
        $cTable->load($id);

        $parentId = $fileLib->getParentId($type, $cTable);

        if ($my->id == 0) {
            $this->ajaxBlockUnregister();
        }

        if (!$my->authorise('community.download', 'files.' . $type, $parentId)) {
            $json['error'] = Text::_('COM_COMMUNITY_FILE_DOWNLOAD_WARNING');
            die( json_encode($json) );
        }

        $json['message'] = Text::_('COM_COMMUNITY_FILE_DOWNLOADING');
        $json['url'] = CRoute::_('index.php?option=com_community&view=files&task=downloadFile&type=' . $type . '&id=' . $id);
        die( json_encode($json) );
    }

    public function ajaxgetFileList($extension, $groupId, $limitstart = 0, $limit = 8, $type = '') {
        $fileLib = new CFilesLibrary();
        $model = CFactory::getModel('files');
        $field = $type . 'id';

        switch ($extension) {
            case 'mostdownload':
                $data = $model->getTopDownload($groupId, $limitstart, $limit, $field);

                foreach ($data as $key => $_data) {
                    $data[$key] = $fileLib->convertToMb($_data);
                    $data[$key] = $fileLib->getParentType($_data);
                    $data[$key] = $fileLib->getParentName($_data);
                    $data[$key]->deleteable = $fileLib->checkDeleteable($type,$_data,CFactory::getUser());
                    $data[$key]->user = CFactory::getUser($_data->creator);
                }

                $tmpl = new CTemplate();
                $tmpl->set('data', $data);
                $html = $tmpl->fetch('files.listing');
                break;

            default:
                $defaultextension = array('document', 'archive', 'images', 'multimedia', 'miscellaneous');
                $data = $model->getFileList($type, $groupId, $limitstart, $limit, $extension);

                foreach ($data as $key => $_data) {
                    $data[$key] = $fileLib->convertToMb($_data);
                    $data[$key] = $fileLib->getParentType($_data);
                    $data[$key] = $fileLib->getParentName($_data);
                    $data[$key]->user = CFactory::getUser($_data->creator);
                    $data[$key]->deleteable = $fileLib->checkDeleteable($type,$_data,CFactory::getUser());

                    if ($_data->type !== $extension && in_array($extension, $defaultextension, true)) {
                        unset($data[$key]);
                    }
                }

                $tmpl = new CTemplate();
                $tmpl->set('data', $data);
                $html = $tmpl->fetch('files.listing');
                break;
        }

        $json = array();
        $json['html'] = $html;

        //calculate pending files list
        $loadedFiles = $limitstart + count($data);
        $totalFiles = $model->getGroupFileCount($groupId, $extension, $field);
        if ($totalFiles > $loadedFiles) {
            //update limitstart
            $limitstart = $limitstart + count($data);
            $moreCount = $totalFiles - $loadedFiles;
            //load more option
            $json['next'] = $limitstart;
            $json['count'] = $moreCount;
        }

        die( json_encode($json) );
    }

    public function ajaxviewMore($type, $id) {
        $table = JTable::getInstance(ucfirst($type), 'CTable');
        $table->load($id);
        $limit = 5;

        $tmpl = new CTemplate();
        $tmpl->set('type', $type);
        $tmpl->set('gid', $id);

        $html = $tmpl->fetch('files.allfiles');

        $json = array(
            'title' => Text::sprintf('COM_COMMUNITY_FILES_VIEW_TITLE', isset($table->title) ? $table->title : '' ),
            'html'  => $html
        );

        die( json_encode($json) );
    }

    public function ajaxUpdateHit($id){
        $cTable = JTable::getInstance('File', 'CTable');
        $cTable->load($id);

        $cTable->hits += 1;
        $cTable->store();
        die('hitted');
    }

}

?>