#ifndef foomodemhfoo
#define foomodemhfoo

#include "buffio.h"
#include "msntab.h"

enum modem_state {
    MODEM_STATE_INIT,
    MODEM_STATE_CALLER_NUMBER_EXPECT,
    MODEM_STATE_CALLER_NUMBER,
    MODEM_STATE_RING_EXPECT,
    MODEM_STATE_RING,
    MODEM_STATE_ATA,
    MODEM_STATE_VTXVRX,
    MODEM_STATE_CONNECTION,
    MODEM_STATE_CONNECTION_SHBUF,
    MODEM_STATE_PRE_HANGUP_HUPSEQ,
    MODEM_STATE_PRE_HANGUP_ATHSEQ,
    MODEM_STATE_HANGUP,
    MODEM_STATE_CHILD_DRAIN,      /* wait until no further data may/has to be written to the child */
    MODEM_STATE_CHILD_WAIT_EOF,   /* wait until no further data may be read from child */
    MODEM_STATE_CHILD_KILL,
    MODEM_STATE_IDLE
};

#define MODEM_BUF_LEN (10*1024)

struct modem {
    char *dev;

    struct buffio *buffio;
    
    enum modem_state state;
    int command_index;

    struct buffio *child_buffio;
    pid_t child_pid;

    struct timeval timeout;

    char *local_msn;

    char *ring_number;
    char *caller_number;

    struct tabentry *tabentry;

    int dle_flag;
};

struct modem *modem_open(const char *dev);
void modem_close(struct modem *m);

#endif