<?php
// This file is part of Moodle - http://moodle.org/

/**
 * Ajax endpoint: activate / recheck / deactivate MeetLet site registration.
 *
 * @package    mod_meetletacbmarketplace
 * @copyright  2026 MeetLet
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

define('AJAX_SCRIPT', true);

require_once('../../../config.php');

use mod_meetletacbmarketplace\registration\error_mapper;
use mod_meetletacbmarketplace\registration\manager;
use mod_meetletacbmarketplace\registration\registration_exception;

require_login();
require_capability('moodle/site:config', context_system::instance());
require_sesskey();

$action = required_param('action', PARAM_ALPHA);
$apiurl = optional_param('registration_api_url', '', PARAM_URL);

header('Content-Type: application/json; charset=utf-8');

try {
    if ($apiurl !== '') {
        set_config(manager::CONFIG_API_URL, rtrim($apiurl, '/'), 'meetletacbmarketplace');
    }

    if ($action === 'activate') {
        manager::activate();
        echo json_encode([
            'success' => true,
            'message' => get_string('registration_activated', 'meetletacbmarketplace'),
            'summary' => manager::status_summary(),
        ]);
        exit;
    }

    if ($action === 'recheck' || $action === 'refresh' || $action === 'validate') {
        manager::recheck(true);
        echo json_encode([
            'success' => true,
            'message' => get_string('registration_rechecked', 'meetletacbmarketplace'),
            'summary' => manager::status_summary(),
        ]);
        exit;
    }

    if ($action === 'deactivate') {
        manager::deactivate();
        echo json_encode([
            'success' => true,
            'message' => get_string('registration_deactivated', 'meetletacbmarketplace'),
            'summary' => manager::status_summary(),
        ]);
        exit;
    }

    if ($action === 'status') {
        echo json_encode([
            'success' => true,
            'summary' => manager::status_summary(),
        ]);
        exit;
    }

    throw new moodle_exception('invalidparameter');
} catch (Throwable $e) {
    $ex = registration_exception::from_throwable($e);
    $mapped = error_mapper::from_exception($ex);
    echo json_encode([
        'success' => false,
        'error' => $mapped['message'] ?? $ex->get_api_message(),
        'error_code' => $ex->get_error_code(),
        'request_id' => $ex->get_request_id(),
        'summary' => manager::status_summary(),
    ]);
}