#include <string.h>
#ifdef LINUX
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#endif

#include "lephisto.h"
#include "log.h"
#include "lfile.h"

// Return lephisto's base path.
static char lephisto_base[128] = "\0";
char* lfile_basePath(void) {
  char* home;

  if(lephisto_base[0] == '\0') {
#ifdef LINUX
    home = getenv("HOME");
#endif
    snprintf(lephisto_base, PATH_MAX, "%s/.lephisto/", home);
  }

  return lephisto_base;
}

// Check if a directory exists, and create it if it doesn't.
// Based on lephisto_base.
int lfile_dirMakeExist(char* path) {
  char file[PATH_MAX];

#ifdef LINUX
  struct stat buf;

  snprintf(file, PATH_MAX, "%s%s", lfile_basePath(), path);
  stat(file, &buf);
  if(!S_ISDIR(buf.st_mode))
    if(mkdir(file, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
      WARN("Dir '%s' does not exist and unable to create", path);
      return -1;
    }
#endif

  return 0;
}