/*************************************************************************/
/*  wsl_server.h                                                         */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/*************************************************************************/

#ifndef WSL_SERVER_H
#define WSL_SERVER_H

#ifndef WEB_ENABLED

#include "websocket_server.h"
#include "wsl_peer.h"

#include "core/io/stream_peer_tcp.h"
#include "core/io/stream_peer_tls.h"
#include "core/io/tcp_server.h"

class WSLServer : public WebSocketServer {
	GDCIIMPL(WSLServer, WebSocketServer);

private:
	class PendingPeer : public RefCounted {
	private:
		bool _parse_request(const Vector<String> p_protocols, String &r_resource_name);

	public:
		Ref<StreamPeerTCP> tcp;
		Ref<StreamPeer> connection;
		bool use_ssl = false;

		uint64_t time = 0;
		uint8_t req_buf[WSL_MAX_HEADER_SIZE] = {};
		int req_pos = 0;
		String key;
		String protocol;
		bool has_request = false;
		CharString response;
		int response_sent = 0;

		Error do_handshake(const Vector<String> p_protocols, uint64_t p_timeout, String &r_resource_name, const Vector<String> &p_extra_headers);
	};

	int _in_buf_size = DEF_BUF_SHIFT;
	int _in_pkt_size = DEF_PKT_SHIFT;
	int _out_buf_size = DEF_BUF_SHIFT;
	int _out_pkt_size = DEF_PKT_SHIFT;

	List<Ref<PendingPeer>> _pending;
	Ref<TCPServer> _server;
	Vector<String> _protocols;
	Vector<String> _extra_headers;

public:
	Error set_buffers(int p_in_buffer, int p_in_packets, int p_out_buffer, int p_out_packets) override;
	void set_extra_headers(const Vector<String> &p_headers) override;
	Error listen(int p_port, const Vector<String> p_protocols = Vector<String>(), bool gd_mp_api = false) override;
	void stop() override;
	bool is_listening() const override;
	int get_max_packet_size() const override;
	bool has_peer(int p_id) const override;
	Ref<WebSocketPeer> get_peer(int p_id) const override;
	IPAddress get_peer_address(int p_peer_id) const override;
	int get_peer_port(int p_peer_id) const override;
	void disconnect_peer(int p_peer_id, int p_code = 1000, String p_reason = "") override;
	virtual void poll() override;

	WSLServer();
	~WSLServer();
};

#endif // WEB_ENABLED

#endif // WSL_SERVER_H