#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#include "config.h"

#ifdef HAVE_UNISTD_H
#include <unistd.h> // unlink, close
#endif

#ifdef HAVE_LIMITS_H
#include <limits.h> // PATH_MAX
#endif /* HAVE_LIMITS_H */
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif

#ifdef HAVE_C99_VARARGS_MACROS
#define PRINT_ERR(...)   fprintf(stderr, "AUBIO-TESTS ERROR: " __VA_ARGS__)
#define PRINT_MSG(...)   fprintf(stdout, __VA_ARGS__)
#define PRINT_DBG(...)   fprintf(stderr, __VA_ARGS__)
#define PRINT_WRN(...)   fprintf(stderr, "AUBIO-TESTS WARNING: " __VA_ARGS__)
#else
#define PRINT_ERR(format, args...)   fprintf(stderr, "AUBIO-TESTS ERROR: " format , ##args)
#define PRINT_MSG(format, args...)   fprintf(stdout, format , ##args)
#define PRINT_DBG(format, args...)   fprintf(stderr, format , ##args)
#define PRINT_WRN(format, args...)   fprintf(stderr, "AUBIO-TESTS WARNING: " format, ##args)
#endif

#ifndef M_PI
#define M_PI         (3.14159265358979323846)
#endif

#ifndef RAND_MAX
#define RAND_MAX 32767
#endif

// are we on windows ? or are we using -std=c99 ?
#if defined(HAVE_WIN_HACKS) || defined(__STRICT_ANSI__)
// http://en.wikipedia.org/wiki/Linear_congruential_generator
// no srandom/random on win32

uint_t srandom_seed = 1029;

void srandom(uint_t new_seed) {
    srandom_seed = new_seed;
}

uint_t random(void) {
    srandom_seed = 1664525 * srandom_seed + 1013904223;
    return srandom_seed;
}
#endif

void utils_init_random (void);

void utils_init_random (void) {
  time_t now = time(0);
  struct tm *tm_struct = localtime(&now);
  int seed = tm_struct->tm_sec;
  //PRINT_WRN("current seed: %d\n", seed);
  srandom (seed);
}

int run_on_default_sink( int main(int, char**) )
{
  int argc = 2, err;
  char* argv[argc];
  char sink_path[PATH_MAX] = "tmp_aubio_XXXXXX";
  int fd = mkstemp(sink_path);
  argv[0] = __FILE__;
  if (!fd) return 1;
  argv[1] = sink_path;
  err = main(argc, argv);
  unlink(sink_path);
  close(fd);
  return err;
}