#include "yocto_api.h"
#include "yocto_gps.h"
#include <iostream>
#include <stdlib.h>

using namespace std;

static void usage(void)
{
  cout << "usage: demo <serial_number> " << endl;
  cout << "       demo <logical_name>" << endl;
  cout << "       demo any                 (use any discovered device)" << endl;
  u64 now = yGetTickCount();
  while (yGetTickCount() - now < 3000) {
    // wait 3 sec to show the message
  }
  exit(1);
}

int main(int argc, const char * argv[])
{
  string errmsg, target;
  YGps *gps;

  if (argc < 2) {
    usage();
  }
  target = (string) argv[1];

  // Setup the API to use local USB devices
  if (yRegisterHub("usb", errmsg) != YAPI_SUCCESS) {
    cerr << "RegisterHub error: " << errmsg << endl;
    return 1;
  }

  if (target == "any") {
    gps = yFirstGps();
    if (gps == NULL) {
      cout << "No module connected (check USB cable)" << endl;
      return 1;
    }
  } else {
    gps = yFindGps(target + ".gps");
  }

  while (1) {
    if (!gps->isOnline()) {
      cout << "Module not connected (check identification and USB cable)";
      break;
    }
    if (!gps->get_isFixed()) {
      cout << "Fixing.." << endl;
    } else {
      cout << gps->get_latitude() << "  " << gps->get_longitude()    << endl;
    }
    cout << "  (press Ctrl-C to exit)" << endl;
    ySleep(1000, errmsg);
  }
  yFreeAPI();
  return 0;
}
