#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "morphos.h"
#define MAX_DOS_NAME FILENAME_MAX

static BOOL getFullPath(const char *path, char *result)
{
  BPTR pathLock = Lock(path, SHARED_LOCK);
  if (pathLock)
  {
	  NameFromLock(pathLock, result, sizeof(char) * MAX_DOS_NAME);
    UnLock(pathLock);

	  return TRUE;
  }
  return FALSE;
}

static BOOL getCurrentPath(char *result)
{
  BOOL success = GetCurrentDirName(result, sizeof(char) * MAX_DOS_NAME);
  if (!success) {
    return TRUE;
  }

  return FALSE;
}

char *_fullpath(const char *path)
{
  static char prvPath[MAX_DOS_NAME];
  static char result[MAX_DOS_NAME];

  if (!strcmp(path, prvPath))
  {
    return result;
  }

  strcpy(prvPath, path);

  if (!strcmp(path, "./lite"))
  {
    // TODO: Add code to get the name of the executable
    if (getFullPath("PROGDIR:lite", result)) 
    {
      return result;
    }
  }

  if (!strcmp(path, "."))
  {
    if(getCurrentPath(result))
    {
      return result;
    }
  }

  if (getFullPath(path, result)) 
  {
    return result;
  }
  
  return NULL;
}