<?php

/**
 * @version     admin/classes/watchfulli.php 2024-03-27 zanardigit
 * @package     Watchful Client
 * @author      Watchful
 * @authorUrl   https://watchful.net
 * @copyright   Copyright (c) 2012-2025 Watchful
 * @license     GNU/GPL v3 or later
 */

use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Version;

defined('_JEXEC') or die();
defined('WATCHFULLI_PATH') or die();

abstract class Watchfulli
{
	public static function canUpdate(): bool
    {
		Watchfulli::debug("We are on a Joomla version that allows remote updates");

		return true;
	}

	public static function getToken(): string
    {
		if (empty($token))
		{
			$params = ComponentHelper::getParams('com_watchfulli');
			$token  = $params->get('secret_key');
		}

		return $token;
	}

	/**
	 * checks request to ensure it is from a valid source
	 */
	public static function checkToken(): bool
    {
		$private_key = Watchfulli::getToken();
		Watchfulli::debug("Local secret key: $private_key");
		$authentication = new WatchfulliAuthentication($private_key);

		return $authentication->checkAuthentication();
	}

	/**
	 * Register error & exception catchers
	 */
	public static function registerErrorsCatchers()
	{
		//Remove php error reporting
		error_reporting(0);
		ini_set('error_reporting', 0);

		// Catch PHP errors
		register_shutdown_function(['Watchfulli', 'errorShutdown']);

		// Catch PHP exception
		set_exception_handler(['Watchfulli', 'exceptionHandler']);
	}

	/**
	 * Catch errors and return infos in a JSON object
	 *
	 */
	public static function errorShutdown(): bool
    {
		$lastError     = error_get_last();
		$catchedErrors = [E_ERROR, E_PARSE];

		if (isset($_GET['debug']))
		{
			$catchedErrors = array_merge($catchedErrors, [E_WARNING, E_NOTICE]);
		}

		if ($lastError == null || !in_array($lastError['type'], $catchedErrors))
		{
			return true;
		}

		$error          = new stdClass();
		$error->status  = 'error';
		$error->type    = $lastError['type'];
		$error->message = $lastError['message'];
		$error->file    = $lastError['file'];
		$error->line    = $lastError['line'];

		echo json_encode($error);

		return true;
	}

	/**
	 * Catch Joomla exceptions and return informations in a JSON object
	 *
	 * @param   mixed<Exception|Error>  $e
	 */
	public static function exceptionHandler($e)
	{
		$error         = new stdClass();
		$error->status = 'error';
		$error->type   = 'exception';
		if ($e instanceof Exception || ((class_exists('Error') && $e instanceof Error))) {
			$error->message = $e->getMessage();
			$error->file    = $e->getFile();
			$error->line    = $e->getLine();
            $error->trace   = $e->getTraceAsString();
		} else {
			$error->message = Text::_('COM_WATCHFULLI_UNKNOWN_ERROR');
			$error->file    = __FILE__;
			$error->line    = __LINE__;
		}

		echo json_encode($error);
		exit();
	}

	public static function debug(string $message, array $context = [])
	{
		if (!defined('WATCHFULLI_DEBUG'))
		{
			return;
		}

		Log::addLogger(["text_file" => "watchful.log.php"], Log::DEBUG, 'watchful');
		Log::add($message, Log::DEBUG, 'watchful');
        if (!empty( $context )) {
            Log::add(json_encode($context), Log::DEBUG, 'watchful');
        }
	}
}