<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

defined('MOODLE_INTERNAL') || die();

/**
 * @param int $oldversion the version we are upgrading from
 * @return bool result
 */
function xmldb_repository_dropbox_upgrade($oldversion) {

<     global $CFG;
< 
<     // Automatically generated Moodle v3.5.0 release upgrade line.
<     // Put any upgrade step following this.



>     global $CFG, $DB;



    // Automatically generated Moodle v3.6.0 release upgrade line.
    // Put any upgrade step following this.

    // Automatically generated Moodle v3.7.0 release upgrade line.
    // Put any upgrade step following this.

    // Automatically generated Moodle v3.8.0 release upgrade line.
    // Put any upgrade step following this.

    // Automatically generated Moodle v3.9.0 release upgrade line.

>     // Put any upgrade step following this.
    // Put any upgrade step following this.
> 

>     if ($oldversion < 2021052501) {
    return true;
>         $key = get_config('dropbox', 'dropbox_key');
}
>         $secret = get_config('dropbox', 'dropbox_secret');
> 
>         if ($key && $secret) {
>             $params = [
>                 'name' => 'Dropbox',
>                 'clientid' => $key,
>                 'clientsecret' => $secret,
>                 'loginparamsoffline' => 'token_access_type=offline',
>                 'image' => '',
>                 'showonloginpage' => 0, // Internal services only.
>             ];
>             $record = $DB->get_record('oauth2_issuer', ['name' => 'Dropbox'], 'id');
>             if (!$record) {
>                 $params = array_merge($params, [
>                     'timecreated' => time(),
>                     'timemodified' => time(),
>                     'usermodified' => time(),
>                     'baseurl' => 0,
>                     'sortorder' => '',
>                     'loginparams' => '',
>                     'requireconfirmation' => 1,
>                     'alloweddomains' => '',
>                     'loginscopes' => 'openid profile email',
>                     'loginscopesoffline' => 'openid profile email',
>                 ]);
>                 $id = $DB->insert_record('oauth2_issuer', $params);
>             } else {
>                 $id = $record->id;
>                 $params['id'] = $id;
>                 $DB->update_record('oauth2_issuer', $params);
>             }
> 
>             set_config('dropbox_issuerid', $id, 'dropbox');
>             unset_config('dropbox_key', 'dropbox');
>             unset_config('dropbox_secret', 'dropbox');
>         }
> 
>         // Dropbox savepoint reached.
>         upgrade_plugin_savepoint(true, 2021052501, 'repository', 'dropbox');
>     }
> 
>     // Automatically generated Moodle v4.0.0 release upgrade line.