#ifndef OMNI_TRANSPORT_KCP_H
#define OMNI_TRANSPORT_KCP_H

#include "kcp_packet_debug.h"
#include "kcp_session_stats.h"
#include "latencylog.h"

#ifdef __cplusplus
extern "C" {
#endif

#define KCP_DEFAULT_NODELAY 1
#define KCP_DEFAULT_INTERVAL_MS 10
#define KCP_DEFAULT_RESEND 2
#define KCP_DEFAULT_NC 1
#define KCP_DEFAULT_SND_WND 256
#define KCP_DEFAULT_RCV_WND 256
#define KCP_DEFAULT_MTU 1400
#define KCP_DEFAULT_STATS_INTERVAL_MS 100

#define KCP_CONTROL_NODELAY 1
#define KCP_CONTROL_INTERVAL_MS 5
#define KCP_CONTROL_RESEND 2
#define KCP_CONTROL_NC 1
#define KCP_CONTROL_SND_WND 32
#define KCP_CONTROL_RCV_WND 32
#define KCP_CONTROL_MTU 1400

#define KCP_VIDEO_NODELAY 1
#define KCP_VIDEO_INTERVAL_MS 10
#define KCP_VIDEO_RESEND 2
#define KCP_VIDEO_NC 1
#define KCP_VIDEO_SND_WND 256
#define KCP_VIDEO_RCV_WND 256
#define KCP_VIDEO_MTU 1400

#define KCP_NODELAY KCP_DEFAULT_NODELAY
#define KCP_INTERVAL KCP_DEFAULT_INTERVAL_MS
#define KCP_RESEND KCP_DEFAULT_RESEND
#define KCP_NC KCP_DEFAULT_NC
#define KCP_WND_SIZE KCP_DEFAULT_SND_WND
#define KCP_MTU KCP_DEFAULT_MTU

typedef struct kcp_conn kcp_conn_t;
typedef struct kcp_listener kcp_listener_t;
typedef struct kcp_conn_options {
    int nodelay;
    int interval_ms;
    int resend;
    int nc;
    int sndwnd;
    int rcvwnd;
    int mtu;
} kcp_conn_options_t;

void kcp_conn_options_init(kcp_conn_options_t *options);
void kcp_conn_options_set_control_defaults(kcp_conn_options_t *options);
void kcp_conn_options_set_video_defaults(kcp_conn_options_t *options);

kcp_conn_t *kcp_conn_dial_with_options(const char *server_addr, const char *bind_ip, const char *bind_device, const kcp_conn_options_t *options, kcp_packet_debug_logger_t *packet_logger, latency_logger_t *logger, const char *node_role, const char *node_id, kcp_session_stats_logger_t *stats_logger, int stats_interval_ms);
kcp_conn_t *kcp_conn_dial(const char *server_addr, const char *bind_ip, const char *bind_device, kcp_packet_debug_logger_t *packet_logger, latency_logger_t *logger, const char *node_role, const char *node_id, kcp_session_stats_logger_t *stats_logger, int stats_interval_ms);
int kcp_conn_configure_runtime(kcp_conn_t *conn, latency_logger_t *logger, const char *node_role, const char *node_id, kcp_session_stats_logger_t *stats_logger, int stats_interval_ms);
int kcp_conn_apply_options(kcp_conn_t *conn, const kcp_conn_options_t *options);
int kcp_conn_send(kcp_conn_t *conn, const message_t *msg);
int kcp_conn_receive_timed(kcp_conn_t *conn, message_t *out_msg, int timeout_ms);
int kcp_conn_receive(kcp_conn_t *conn, message_t *out_msg);
int kcp_conn_close(kcp_conn_t *conn);
void kcp_conn_free(kcp_conn_t *conn);
uint32_t kcp_conn_conv(const kcp_conn_t *conn);
int kcp_conn_local_addr(const kcp_conn_t *conn, struct sockaddr_storage *addr, socklen_t *addr_len);

kcp_listener_t *kcp_listener_listen(const char *listen_addr, const char *bind_device, kcp_packet_debug_logger_t *packet_logger, const char *node_role, const char *node_id);
kcp_conn_t *kcp_listener_accept(kcp_listener_t *listener);
int kcp_listener_close(kcp_listener_t *listener);
void kcp_listener_free(kcp_listener_t *listener);

int kcp_session_stats_parse_interval_ms(const char *raw, int *out_ms);

#ifdef __cplusplus
}
#endif

#endif