/* This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details.
 *
 * I2P-Bote:
 * 5m77dFKGEq6~7jgtrfw56q3t~SmfwZubmGdyOLQOPoPp8MYwsZ~pfUCwud6LB1EmFxkm4C3CGlzq-hVs9WnhUV
 * we are the Borg. */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "../libsam3/libsam3.h"

#define KEYFILE "streams.key"

int main(int argc, char *argv[]) {
  Sam3Session ses;
  Sam3Connection *conn;
  char cmd[1024], destkey[617]; // 616 chars + \0
  //
  libsam3_debug = 1;
  //
  memset(destkey, 0, sizeof(destkey));
  //
  if (argc < 2) {
    FILE *fl = fopen(KEYFILE, "rb");
    //
    if (fl != NULL) {
      if (fread(destkey, 616, 1, fl) == 1) {
        fclose(fl);
        goto ok;
      }
      fclose(fl);
    }
    printf("usage: streamc PUBKEY\n");
    return 1;
  } else {
    if (!sam3CheckValidKeyLength(argv[1])) {
      fprintf(stderr, "FATAL: invalid key length! %s %lu\n", argv[1],
              strlen(argv[1]));
      return 1;
    }
    strcpy(destkey, argv[1]);
  }
  //
ok:
  printf("creating session...\n");
  // create TRANSIENT session
  if (sam3CreateSilentSession(&ses, SAM3_HOST_DEFAULT, SAM3_PORT_DEFAULT,
                              SAM3_DESTINATION_TRANSIENT, SAM3_SESSION_STREAM,
                              4, NULL) < 0) {
    fprintf(stderr, "FATAL: can't create session\n");
    return 1;
  }
  //
  printf("connecting...\n");
  if ((conn = sam3StreamConnect(&ses, destkey)) == NULL) {
    fprintf(stderr, "FATAL: can't connect: %s\n", ses.error);
    sam3CloseSession(&ses);
    return 1;
  }
  //
  // now waiting for incoming connection
  printf("sending test command...\n");
  if (sam3tcpPrintf(conn->fd, "test\n") < 0)
    goto error;
  if (sam3tcpReceiveStr(conn->fd, cmd, sizeof(cmd)) < 0)
    goto error;
  printf("echo: %s\n", cmd);
  //
  printf("sending quit command...\n");
  if (sam3tcpPrintf(conn->fd, "quit\n") < 0)
    goto error;
  //
  sam3CloseConnection(conn);
  sam3CloseSession(&ses);
  return 0;
error:
  fprintf(stderr, "FATAL: some error occured!\n");
  sam3CloseConnection(conn);
  sam3CloseSession(&ses);
  return 1;
}