/*************************************************************************/
/*  WebRTCDataChannelNative.hpp                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
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/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
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/*************************************************************************/

#ifndef WEBRTC_DATA_CHANNEL_NATIVE
#define WEBRTC_DATA_CHANNEL_NATIVE

#include <Godot.hpp>
#include <Reference.hpp>
#include <WebRTCDataChannelGDNative.hpp>

#include <net/godot_net.h>

/* Forward declare interface functions */
godot_error get_packet_wdc(void *, const uint8_t **, int *);
godot_error put_packet_wdc(void *, const uint8_t *, int);
godot_int get_available_packet_count_wdc(const void *);
godot_int get_max_packet_size_wdc(const void *);

void set_write_mode_wdc(void *, godot_int);
godot_int get_write_mode_wdc(const void *);
bool was_string_packet_wdc(const void *);
godot_int get_ready_state_wdc(const void *);
const char *get_label_wdc(const void *);
bool is_ordered_wdc(const void *);
int get_id_wdc(const void *);
int get_max_packet_life_time_wdc(const void *);
int get_max_retransmits_wdc(const void *);
const char *get_protocol_wdc(const void *);
bool is_negotiated_wdc(const void *);
int get_buffered_amount_wdc(const void *);
godot_error poll_wdc(void *);
void close_wdc(void *);

#if GODOT_NET_WEBRTC_API_MAJOR == 3 && GODOT_NET_WEBRTC_API_MINOR < 4
extern "C" {
/* Extensions to WebRTCDataChannel */
typedef struct {
	int (*get_buffered_amount)(const void *);

	void *next; /* For extension? */
} godot_net_webrtc_data_channel_ext;
}
#endif

namespace godot {

class WebRTCDataChannelNative : public godot::WebRTCDataChannelGDNative {
	GODOT_CLASS(WebRTCDataChannelNative, godot::WebRTCDataChannelGDNative);

protected:
	godot_net_webrtc_data_channel_ext interface_ext = {
		&get_buffered_amount_wdc,
		NULL,
	};

	godot_net_webrtc_data_channel interface = {
		{ 3, 1 },
		this,

		&get_packet_wdc,
		&put_packet_wdc,
		&get_available_packet_count_wdc,
		&get_max_packet_size_wdc,

		&set_write_mode_wdc,
		&get_write_mode_wdc,
		&was_string_packet_wdc,
		&get_ready_state_wdc,
		&get_label_wdc,
		&is_ordered_wdc,
		&get_id_wdc,
		&get_max_packet_life_time_wdc,
		&get_max_retransmits_wdc,
		&get_protocol_wdc,
		&is_negotiated_wdc,

		&poll_wdc,
		&close_wdc,
		&interface_ext,
	};

public:
	static void _register_methods();

	void _init();
	void register_interface(const godot_net_webrtc_data_channel *interface);

	virtual void _set_write_mode(WriteMode mode) = 0;
	virtual WriteMode _get_write_mode() const = 0;
	virtual bool _was_string_packet() const = 0;

	virtual ChannelState _get_ready_state() const = 0;
	virtual godot::String _get_label() const = 0;
	virtual bool _is_ordered() const = 0;
	virtual int32_t _get_id() const = 0;
	virtual int32_t _get_max_packet_life_time() const = 0;
	virtual int32_t _get_max_retransmits() const = 0;
	virtual godot::String _get_protocol() const = 0;
	virtual bool _is_negotiated() const = 0;
	virtual int32_t _get_buffered_amount() const = 0;

	virtual godot::Error _poll() = 0;
	virtual void _close() = 0;

	/* PacketPeer */
	virtual godot::Error _get_packet(const uint8_t **r_buffer, int32_t *r_len) = 0;
	virtual godot::Error _put_packet(const uint8_t *p_buffer, int32_t p_len) = 0;
	virtual int32_t _get_available_packet_count() const = 0;
	virtual int32_t _get_max_packet_size() const = 0;

	~WebRTCDataChannelNative();
};

}; // namespace godot

#endif // WEBRTC_DATA_CHANNEL_NATIVE