// this function verifies disk space in kilobytes
function verifyDiskSpace(dirPath, spaceRequired)
{
  var spaceAvailable;

  // Get the available disk space on the given path
  spaceAvailable = fileGetDiskSpaceAvailable(dirPath);

  // Convert the available disk space into kilobytes
  spaceAvailable = parseInt(spaceAvailable / 1024);

  // do the verification
  if(spaceAvailable < spaceRequired)
  {
    logComment("Insufficient disk space: " + dirPath);
    logComment("  required : " + spaceRequired + " K");
    logComment("  available: " + spaceAvailable + " K");
    return(false);
  }

  return(true);
}

// this function deletes a file if it exists
function deleteThisFile(dirKey, file)
{
  var fFileToDelete;

  fFileToDelete = getFolder(dirKey, file);
  logComment("File to delete: " + fFileToDelete);
  if(File.isFile(fFileToDelete))
  {
    File.remove(fFileToDelete);
    return(true);
  }
  else
    return(false);
}

// this function deletes a folder if it exists
function deleteThisFolder(dirKey, folder, recursiveDelete)
{
  var fToDelete;

  if(typeof recursiveDelete == "undefined")
    recursiveDelete = true;

  fToDelete = getFolder(dirKey, folder);
  logComment("Folder to delete: " + fToDelete);
  if(File.isDirectory(fToDelete))
  {
    File.dirRemove(fToDelete, recursiveDelete);
    return(true);
  }
  else
    return(false);
}

// OS type detection
// which platform?
function getPlatform()
{
  var platformStr;
  var platformNode;

  if('platform' in Install)
  {
    platformStr = new String(Install.platform);

    if (!platformStr.search(/^Macintosh/))
      platformNode = 'mac';
    else if (!platformStr.search(/^Win/))
      platformNode = 'win';
    else
      platformNode = 'unix';
  }
  else
  {
    var fOSMac  = getFolder("Mac System");
    var fOSWin  = getFolder("Win System");

    logComment("fOSMac: "  + fOSMac);
    logComment("fOSWin: "  + fOSWin);

    if(fOSMac != null)
      platformNode = 'mac';
    else if(fOSWin != null)
      platformNode = 'win';
    else
      platformNode = 'unix';
  }

  return platformNode;
}

var srDest = $SpaceRequired$;

var err = initInstall("Quality Feedback Agent", "Quality Feedback Agent", "$Version$"); 
logComment("initInstall: " + err);

var communicatorFolder = getFolder("Program");
logComment("communicatorFolder: " + communicatorFolder);

if (verifyDiskSpace(communicatorFolder, srDest))
{
    err = addDirectory("Program",
                       "$Version$",
                       "bin",              // jar source folder 
                       communicatorFolder, // target folder 
                       "",                 // target subdir 
                       true );             // force flag 

    logComment("addDirectory() returned: " + err);

    if (err==SUCCESS)
    {
	    err = performInstall(); 
	    logComment("performInstall() returned: " + err);
    }
    else
    {
	    cancelInstall(err);
	    logComment("cancelInstall() returned: " + err);
    }
}
else
    cancelInstall(INSUFFICIENT_DISK_SPACE);