local_webhooks/index.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/>.

/**
 * Service list manager.
 *
 * @copyright 2018 'Valentin Popov' <info@valentineus.link>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @package   local_webhooks
 */

require_once( __DIR__ . "/../../config.php" );

require_once( $CFG->dirroot . "/local/webhooks/classes/ui_tables_plugin.php" );
require_once( $CFG->dirroot . "/local/webhooks/lib.php" );
require_once( $CFG->libdir . "/adminlib.php" );

$deleteId = optional_param( "deleteid", 0, PARAM_INT );
$hideShowId = optional_param( "hideshowid", 0, PARAM_INT );

$editPage = "/local/webhooks/service.php";
$mainPage = "/local/webhooks/index.php";
$baseUrl = new moodle_url( $mainPage );

admin_externalpage_setup( "local_webhooks", "", null, $baseUrl, array() );
$context = context_system::instance();

/* Remove the service */
if ( !empty( $deleteId ) && confirm_sesskey() ) {
    local_webhooks_api::delete_service( $deleteId );
    redirect( $PAGE->url, new lang_string( "deleted", "moodle" ) );
}

/* Disable / Enable the service */
if ( !empty( $hideShowId ) && confirm_sesskey() ) {
    $service = local_webhooks_api::get_service( $hideShowId );
    $service->status = !(bool) $service->status;
    local_webhooks_api::update_service( (array) $service );
    redirect( $PAGE->url, new lang_string( "changessaved", "moodle" ) );
}

/* The page title */
$titlePage = new lang_string( "pluginname", "local_webhooks" );
$PAGE->set_heading( $titlePage );
$PAGE->set_title( $titlePage );
echo $OUTPUT->header();

/* Displays the table */
$table = new local_webhooks_services_table( "local-webhooks-table" );
$table->define_baseurl( $baseUrl );
$table->out( 25, true );

/* Separation */
echo html_writer::empty_tag( "br" );

/* Adds the add button */
$addServiceUrl = new moodle_url( $editPage, array( "sesskey" => sesskey() ) );
echo $OUTPUT->single_button( $addServiceUrl, new lang_string( "add", "moodle" ) );

/* Footer */
echo $OUTPUT->footer();