#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>
#include <stdlib.h>
#include <unistd.h>
#include <dirent.h>
#include <string.h>
#include <limits.h>

#include "engine.h"
#include "config.h"
#include "utils.h"

char *gethome()
{
  char *buf;
  struct passwd *mypass;
  uid_t me;
  
  me = getuid();
  mypass = getpwuid(me);
  buf = strdup(mypass->pw_dir);
  
  if(!buf)
    err_quit("No memory available\n");
  
  return buf;
  
}

char *returnPathdir(void)
{
   
   char *buf1, *buf;
   
   buf = gethome();
   buf1 = calloc(PATH_MAX + 1, sizeof(char));
   if(!buf1)
     err_quit("No memory available\n");
   snprintf(buf1, PATH_MAX, "%s/.ermixer/", buf);
   free(buf);
   
   return buf1;

}   
 
int exist(const char *pathname)
{

   DIR *ermixer;

   ermixer = opendir(pathname);
   if(!ermixer)
     return ERROR;

   closedir(ermixer);
   return SUCCESS;
   
}

void createDir(const char *pathname)
{
   
  fprintf(stdout, "Creating %s\n", pathname);
  
  if((mkdir(pathname, 0740)) == ERROR)
    {
      fprintf(stderr, "Unable to Create %s\n", pathname);
      exit(1);
    }
  
  fprintf(stdout, "Done\n");
  
}

void checkDir()
{
   
  char *buf = NULL;

  buf = returnPathdir();
  
  if(exist(buf) == ERROR)
    {
      fprintf(stderr, "%s don't exist!!! I search to create it\n", buf);
      createDir(buf);
    }
  free(buf);
}