settings.php

<?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/>.

/**
 * Settings for the Admin Tool DevCourse Plugin.
 *
 * @package    tool_devcourse
 * @copyright  2025 Diego Monroy <diego.monroy@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

if ($hassiteconfig) {
    // Add the plugin settings to the local plugins category.
    $pluginname = 'tool_devcourse';

    $ADMIN->add('tools',
        new admin_category(
                "{$pluginname}_settings",
                new \lang_string('pluginname', $pluginname)
        )
    );

    // General settings page.
    $generalsettings = new admin_settingpage('generalsettings',
            new \lang_string('generalsettings', $pluginname));
    $ADMIN->add("{$pluginname}_settings", $generalsettings);

    // Add the plugin settings.
    if ($ADMIN->fulltree) {
        // Feature flag.
        $setting = new admin_setting_configcheckbox(
                    "{$pluginname}/enabled",
                    new lang_string('enabled', $pluginname),
                    new lang_string('enabled_desc', $pluginname),
                    0
        );
        $generalsettings->add($setting);
    }
}