#ifndef _PATTY_AX25_IF_H
#define _PATTY_AX25_IF_H

#include <stdint.h>
#include <sys/types.h>

#include <patty/list.h>

#define PATTY_AX25_IF_OPT_TYPE_MASK 0x1f

#define PATTY_AX25_IF_OPT_TYPE(n) \
    ((n) & PATTY_AX25_IF_OPT_TYPE_MASK)

#define PATTY_AX25_IF_BUFSZ 4096

enum patty_ax25_if_type {
    PATTY_AX25_IF_UNKNOWN,
    PATTY_AX25_IF_KISS_TNC,
    PATTY_AX25_IF_HDLC
};

typedef struct _patty_ax25_if_stats {
    size_t rx_frames,
           tx_frames,
           rx_bytes,
           tx_bytes,
           dropped;
} patty_ax25_if_stats;

typedef struct _patty_ax25_if {
    enum patty_ax25_if_type  type;
         patty_ax25_if_stats stats;

    char name[8];

    void *rx_buf,
         *tx_buf;

    size_t rx_bufsz,
           tx_bufsz;

    patty_kiss_tnc *tnc;
    patty_ax25_addr addr;
    patty_list *aliases;
    patty_dict *promisc_fds;
} patty_ax25_if;

typedef struct _patty_ax25_if_info {
    patty_ax25_addr addr;
} patty_ax25_if_info;

enum patty_ax25_if_kiss_tnc_info_type {
    PATTY_AX25_IF_KISS_TNC_INFO_NONE,
    PATTY_AX25_IF_KISS_TNC_INFO_FD,
    PATTY_AX25_IF_KISS_TNC_INFO_PATH
};

typedef struct _patty_ax25_if_kiss_tnc_info {
         patty_ax25_addr addr;
    enum patty_ax25_if_kiss_tnc_info_type type;

    int fd;
    char path[256];
} patty_ax25_if_kiss_tnc_info;

patty_ax25_if *patty_ax25_if_new(int opts, patty_ax25_if_info *info);

void patty_ax25_if_destroy(patty_ax25_if *iface);

int patty_ax25_if_addr_each(patty_ax25_if *iface,
    int (*callback)(char *, uint8_t, void *), void *ctx);

int patty_ax25_if_addr_add(patty_ax25_if *iface,
    const char *callsign, uint8_t ssid);

int patty_ax25_if_addr_delete(patty_ax25_if *iface,
    const char *callsign, uint8_t ssid);

int patty_ax25_if_promisc_add(patty_ax25_if *iface,
                              int fd);

int patty_ax25_if_promisc_delete(patty_ax25_if *iface,
                                 int fd);

ssize_t patty_ax25_if_pending(patty_ax25_if *iface);

ssize_t patty_ax25_if_recv(patty_ax25_if *iface,
                           void **buf);

ssize_t patty_ax25_if_send(patty_ax25_if *iface,
                           const void *buf,
                           size_t len);

#endif /* _PATTY_AX25_IF_H */