<?php


namespace HttpServer;

use Exception;
use HttpServer\Abstracts\HttpService;
use HttpServer\Service\Http;
use HttpServer\Service\Packet;
use HttpServer\Service\Receive;
use HttpServer\Service\Websocket;
use JetBrains\PhpStorm\Pure;
use ReflectionException;
use Rpc\Service;
use Server\Constant;
use Server\ServerManager;
use Snowflake\Abstracts\Config;
use Snowflake\Error\LoggerProcess;
use Snowflake\Exception\ConfigException;
use Snowflake\Exception\NotFindClassException;
use Snowflake\Process\Biomonitoring;
use Snowflake\Snowflake;
use Swoole\Runtime;


defined('PID_PATH') or define('PID_PATH', APP_PATH . 'storage/server.pid');

/**
 * Class Server
 * @package HttpServer
 */
class Server extends HttpService
{

	private array $process = [
		Biomonitoring::class,
		LoggerProcess::class
	];


	private ServerManager $manager;


	/**
	 *
	 */
	public function init()
	{
		$this->manager = ServerManager::getContext();
	}


	/**
	 * @param $process
	 */
	public function addProcess($process)
	{
		$this->process[] = $process;
	}


	/**
	 * @return string start server
	 *
	 * start server
	 * @throws ConfigException
	 * @throws Exception
	 */
	public function start(): string
	{
		$this->manager->initBaseServer(Config::get('server', [], true));

		$rpcService = Config::get('rpc', []);
		if (!empty($rpcService)) {
			$this->rpcListener($rpcService);
		}

		$processes = array_merge($this->process, Config::get('processes', []));
		foreach ($processes as $process) {
			$this->manager->addProcess($process);
		}
		Runtime::enableCoroutine(true, SWOOLE_HOOK_ALL ^ SWOOLE_HOOK_BLOCKING_FUNCTION);

		return $this->manager->getServer()->start();
	}


	/**
	 * @param $rpcService
	 * @throws ReflectionException
	 * @throws NotFindClassException
	 */
	private function rpcListener($rpcService)
	{
		if (in_array($rpcService['mode'], [SWOOLE_SOCK_UDP, SWOOLE_UDP, SWOOLE_UDP6, SWOOLE_SOCK_UDP6])) {
			$rpcService['events'][Constant::PACKET] = [Service::class, 'onPacket'];
		} else {
			$rpcService['events'][Constant::RECEIVE] = [Service::class, 'onReceive'];
			$rpcService['events'][Constant::CONNECT] = [Service::class, 'onConnect'];
			$rpcService['events'][Constant::DISCONNECT] = [Service::class, 'onDisconnect'];
			$rpcService['events'][Constant::CLOSE] = [Service::class, 'onClose'];
		}
		$this->manager->addListener($rpcService['type'], $rpcService['host'], $rpcService['port'], $rpcService['mode'], $rpcService);
	}


	/**
	 * @param $host
	 * @param $Port
	 * @return Packet|Websocket|Receive|Http|null
	 * @throws Exception
	 */
	public function error_stop($host, $Port): Packet|Websocket|Receive|Http|null
	{
		$this->error(sprintf('Port %s::%d is already.', $host, $Port));
		if ($this->swoole) {
			$this->swoole->shutdown();
		} else {
			$this->shutdown();
		}
		return $this->swoole;
	}


	/**
	 * @return bool
	 * @throws ConfigException
	 * @throws Exception
	 */
	public function isRunner(): bool
	{
		$port = Config::get('servers');
		if (empty($port)) {
			return false;
		}
		foreach ($port as $value) {
			if ($this->checkPort($value['port'])) {
				return true;
			}
		}
		return false;
	}


	/**
	 * @param $port
	 * @return bool
	 * @throws Exception
	 */
	private function checkPort($port): bool
	{
		if (Snowflake::getPlatform()->isLinux()) {
			exec('netstat -tunlp | grep ' . $port, $output);
		} else {
			exec('lsof -i :' . $port . ' | grep -i "LISTEN"', $output);
		}
		return !empty($output);
	}


	/**
	 * @return void
	 *
	 * start server
	 * @throws Exception
	 */
	public function shutdown()
	{
		/** @var Shutdown $shutdown */
		$shutdown = Snowflake::app()->get('shutdown');
		$shutdown->shutdown();
	}


	/**
	 * @param $daemon
	 * @return Server
	 */
	public function setDaemon($daemon): static
	{
		if (!in_array($daemon, [0, 1])) {
			return $this;
		}
		$this->daemon = $daemon;
		return $this;
	}


	/**
	 * @return \Swoole\Http\Server|\Swoole\Server|\Swoole\WebSocket\Server|null
	 */
	#[Pure] public function getServer(): \Swoole\Http\Server|\Swoole\Server|\Swoole\WebSocket\Server|null
	{
		return $this->manager->getServer();
	}

}