<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

// Handle special actions of the smarty_function_attachments smarty plugin
function s_f_attachments_actionshandler($params)
{
    global $prefs, $user, $tikilib;
    if ($prefs['feature_wiki_attachments'] != 'y') {
        return false;
    }

    /*** Works only for wiki attachments yet ***/
    if (! empty($params['upload']) && empty($params['fileId']) && empty($params['page'])) {
        return false; ///FIXME
    }

    if (! empty($params['page'])) {
        require_once("lib/wiki/renderlib.php");
        $info =& $tikilib->get_page_info($params['page']);
        $pageRenderer = new WikiRenderer($info, $user, $info['data']);
        $objectperms = $pageRenderer->applyPermissions();
    }

    $filegallib = TikiLib::lib('filegal');
    $access = TikiLib::lib('access');

    foreach ($params as $k => $v) {
        switch ($k) {
            case 'remove':
                /* FIXME
                    check_ticket('index');
                    $owner = $wikilib->get_attachment_owner($_REQUEST['removeattach']);
                    if ( ($user && ($owner == $user) ) || $objectperms->wiki_admin_attachments ) {
                        $access->check_authenticity();
                        $wikilib->remove_wiki_attachment($_REQUEST['removeattach']);
                    }
                    $pageRenderer->setShowAttachments( 'y' );
                */
                if ($access->checkCsrf(true)) {
                    $result = $filegallib->actionHandler('removeFile', [ 'fileId' => $v ]);
                    if ($result && $result->numrows()) {
                        Feedback::success(tr('File (ID %0) removed', $v));
                    } else {
                        Feedback::error(tr('File (ID %0) not removed', $v));
                    }
                }
                break;

            case 'upload':
                if (isset($objectperms) && ( $objectperms->wiki_admin_attachments || $objectperms->wiki_attach_files )) {
                    /* check_ticket('index'); */

                    $smarty = TikiLib::lib('smarty');
                    $smarty->loadPlugin('smarty_function_query');

                    $galleryId = $filegallib->get_attachment_gallery($params['page'], 'wiki page', true);
                    if ($access->checkCsrf()) {
                        $result = $filegallib->actionHandler(
                            'uploadFile',
                            [
                                'galleryId' => [$galleryId],
                                'comment' => [$params['comment']],
                                'returnUrl' => smarty_function_query(
                                    [
                                        '_type' => 'absolute_path',
                                        's_f_attachments-upload' => 'NULL',
                                        's_f_attachments-page' => 'NULL',
                                        's_f_attachments-comment' => 'NULL',
                                        'ticket' => 'NULL',
                                    ],
                                    $smarty
                                ),
                            ]
                        );
                        if ($result) {
                            Feedback::success(tr('File uploaded'));
                        } else {
                            Feedback::error(tr('File not uploaded'));
                        }
                    }
                }

                break;
        }
    }

    return true;
}

/*
 * smarty_function_attachments: Display the list of files attached to a wiki page (when stored in a file gallery)
 *
 * params will be used as smarty params for fgal_attachments.tpl, except special params starting with '_' :
 *   _id : id of the object (for a wiki page, use it's name)
 *   _type : type of the object ( e.g. "wiki page" - see objectTypes in lib/setup/sections.php )
 */
function smarty_function_attachments($params, $template)
{
    if (! is_array($params) || ! isset($params['_id']) || ! isset($params['_type'])) {
        return tra('Missing _id or _type params');
    }

    global $prefs, $page;
    $filegallib = TikiLib::lib('filegal');
    $smarty = TikiLib::lib('smarty');
    /*** For the moment, only wiki attachments are handled through file galleries ***/
    if ($prefs['feature_wiki_attachments'] != 'y') {
        return;
    }

    $galleryId = $filegallib->get_attachment_gallery($params['_id'], $params['_type']);

    /*** If anything in this function is changed, please change lib/wiki-plugins/wikiplugin_attach.php as well. ***/
    /* but wikiplugin_attach doesn't seem to work at all with file gals attachemnts??? jonnyb tiki12 */

    if (empty($galleryId)) {            // no gallery for this page yet, is no problem (12.0+)
        $gal_info = $filegallib->default_file_gallery();
        $gal_info['name'] = $page . ' *';   // temp name with * - not displayed in most configs
    } elseif (! $gal_info = $filegallib->get_file_gallery($galleryId)) {
        $smarty->loadPlugin('smarty_block_remarksbox');
        $repeat = false;
        return smarty_block_remarksbox(
            ['type' => 'errors', 'title' => tra('Wrong attachments gallery')],
            tra('You are attempting to display a gallery that is not a valid attachment gallery') . ' (ID=' . $galleryId . ')',
            $smarty,
            $repeat
        ) . "\n";
    }

////    if ( $this->showAttachments !== false )
////        $this->smartyassign('atts_show', $this->showAttachments);

    foreach ($params as $k => $v) {
        if ($k[0] == '_') {
            unset($params[ $k ]);
        }
    }

    // Get URL params specific to this smarty function that should be assigned in smarty
    $url_override_prefix = 's_f_attachments';
    $url_overrided_arguments = [ 'sort_mode', 'remove', 'galleryId', 'comment', 'upload', 'page' ];
    $smarty->set_request_overriders($url_override_prefix, $url_overrided_arguments);

    $params['sort_mode'] = isset($_REQUEST[ $url_override_prefix . '-sort_mode' ]) ? $_REQUEST[ $url_override_prefix . '-sort_mode' ] : '';

    // Get listing display config
    include_once('fgal_listing_conf.php');

    // Force some gallery display parameters
    $gal_info['show_checked'] = 'n';

    // Get list of files in the gallery
    if (! empty($galleryId)) {
        $files = $filegallib->get_files(0, -1, $params['sort_mode'], '', $galleryId);
    } else {
        $files = ['data' => [], 'cant' => 0];
    }

    // Readjust perms using special wiki attachments perms
    global $tiki_p_wiki_admin_attachments, $tiki_p_wiki_view_attachments;

    foreach ($files[ 'data' ] as &$file) {
        // First disable file galleries "assign perms" & "admin" perms that allows too much actions on the list of files or that are related to subgalleries
        //   (attachments display should be simple)
        $file['perms'][ 'tiki_p_admin_file_galleries' ] = 'n';
        $file['perms'][ 'tiki_p_assign_perm_file_gallery' ] = 'n';

        // Disabling permissions below should not be necessary because subgalleries in attachments galleries should not happen...
        // $p[ 'tiki_p_upload_files' ] = 'n';
        // $p[ 'tiki_p_create_file_galleries' ] = 'n';

        $file['perms'][ 'tiki_p_download_files' ] = ( $tiki_p_wiki_admin_attachments == 'y' || $tiki_p_wiki_view_attachments == 'y' ) ? 'y' : 'n';
        $file['perms'][ 'tiki_p_edit_gallery_file' ] = $tiki_p_wiki_admin_attachments;
    }

    $params['gal_info'] = $gal_info;
    $params['files'] = $files['data'];
    $params['cant'] = $files['cant'];

    $return = "\n" . $smarty->plugin_fetch('fgal_attachments.tpl', $params) . "\n";

    $smarty->remove_request_overriders($url_override_prefix, $url_overrided_arguments);
    return $return;
}