<?php
namespace Nexus\Core;

class Constant
{
    /**
     * @todo check RoadRunner environment
     */
    public function define()
    {
        if (!empty($_SERVER['PWD']) && str_contains($_SERVER['PWD'], 'vendor/laravel/octane/bin')) {
            $this->defineForOctane();
        } else {
            $this->defineForFPM();
        }
        $this->defineCommon();
    }

    private function defineForFPM()
    {
        defined('CURRENT_SCRIPT') || define('CURRENT_SCRIPT', strstr(basename($_SERVER['SCRIPT_FILENAME']), '.', true));
        defined('CURRENT_PLATFORM') || define('CURRENT_PLATFORM', $_SERVER['HTTP_PLATFORM'] ?? '');
        $requestId = '';
        if (!empty($_SERVER['HTTP_X_REQUEST_ID'])) {
            $requestId = $_SERVER['HTTP_X_REQUEST_ID'];
        } elseif (!empty($_SERVER['REQUEST_ID'])) {
            $requestId = $_SERVER['REQUEST_ID'];
        }
        define('REQUEST_ID', $requestId ?: $this->generateRequestId());
    }

    private function defineForOctane()
    {
        $request = request();
        defined('CURRENT_SCRIPT') || define('CURRENT_SCRIPT', $request->header('script_filename', ''));
        defined('CURRENT_PLATFORM') || define('CURRENT_PLATFORM', $request->header('platform', ''));
        $requestId = $request->header('request_id', '');
        define('REQUEST_ID', $requestId ?: $this->generateRequestId());
    }

    private function generateRequestId()
    {
        $prefix = ($_SERVER['SCRIPT_FILENAME'] ?? '') . implode('', $_SERVER['argv'] ?? []);
        $prefix = substr(md5($prefix), 0, 4);
        // 4 + 23 = 27 characters, after replace '.', 26
        $requestId = str_replace('.', '', uniqid($prefix, true));
        $requestId .= bin2hex(random_bytes(3));
        return $requestId;
    }

    private function defineCommon()
    {
        defined('VERSION_NUMBER') || define('VERSION_NUMBER', '1.6.0');
        defined('RELEASE_DATE') || define('RELEASE_DATE', '2022-03-14');
        defined('ROOT_PATH') || define('ROOT_PATH', dirname(dirname(__DIR__)) . '/');
        defined('IN_TRACKER') || define('IN_TRACKER', true);
        defined('PROJECTNAME') || define("PROJECTNAME","NexusPHP");
        defined('NEXUSPHPURL') || define("NEXUSPHPURL","https://nexusphp.org");
        defined('NEXUSWIKIURL') || define("NEXUSWIKIURL","https://doc.nexusphp.org");
        defined('VERSION') || define("VERSION","Powered by <a href=\"aboutnexus.php\">".PROJECTNAME."</a>");
        defined('THISTRACKER') || define("THISTRACKER","General");

        defined('PLATFORM_ADMIN') || define('PLATFORM_ADMIN', 'admin');
        defined('PLATFORM_USER') || define('PLATFORM_USER', 'user');
        defined('PLATFORMS') || define('PLATFORMS', [PLATFORM_ADMIN, PLATFORM_USER]);
        defined('IS_PLATFORM_ADMIN') || define('IS_PLATFORM_ADMIN', CURRENT_PLATFORM == PLATFORM_ADMIN);
        defined('IS_PLATFORM_USER') || define('IS_PLATFORM_USER', CURRENT_PLATFORM == PLATFORM_USER);
        defined('IS_ANNOUNCE') || define('IS_ANNOUNCE', CURRENT_SCRIPT == 'announce');
    }


}