// First some functions to use in the installation.
var versionMaj = 1;
var versionMin = 2;
var versionRel = 3;
var versionBld = 5;

var updateObjectName = "mBED plug-in";
var abortCalled   = false;
var newSubFailure = false;

var vi = new netscape.softupdate.VersionInfo(versionMaj, versionMin, versionRel, versionBld);
var su = new netscape.softupdate.SoftwareUpdate( this, updateObjectName );

var err = 0;

// Checks OS and version information.
function checkSystemEnvironment() 
{
   var err = 0;

   if (navigator.platform != "Win32" && navigator.platform != "Win16" &&
       navigator.platform != "MacPPC" && navigator.platform != "Mac68k") 
   {
      err = -20; // wrong OS 
      return err;
   }
   return err;
}

// A wrapper for calling the AddSubcomponent() function.
function newSub(fName, jarFilePath, tgtVI, tgtFolder, tgtFilePath) 
{
   var err = su.AddSubcomponent(fName,tgtVI,jarFilePath,tgtFolder,tgtFilePath,this.force);
   if (err != 0) 
		newSubFailure = true;
}

// This prepares the specific files to be installed.
function setupFiles(su) 
{
	var err = 0;

	if (su == null) 
		return -1;

	err = su.StartInstall("/plugins/mBED/",        // Package name
				 vi, netscape.softupdate.SoftwareUpdate.FULL_INSTALL);
	
	if (err !=0) 
		return err;

	// Get folders.
	PluginsFolder = su.GetFolder("Plugins");
	if (PluginsFolder == null) 
		return -1;

	//   mBED Plug-in files
	if (navigator.platform == "Win32")
		newSub("mBED Plugin","np32mbed.dll",vi,PluginsFolder, "np32mbed.dll");
	else if (navigator.platform == "Win16")
		newSub("mBED Plugin","np16mbed.dll",vi,PluginsFolder, "np16mbed.dll");
	else if (navigator.platform == "MacPPC")
		newSub("mBED Plugin","mBED Plugin PPC",vi,PluginsFolder, "mBED Plugin PPC");
	else if (navigator.platform == "Mac68k")
		newSub("mBED Plugin","mBED Plugin 68K",vi,PluginsFolder, "mBED Plugin 68K");
	newSub("mBED Plugin","npMbed.class",vi,PluginsFolder, "npMbed.class");

	// If any subcomponent failed, the installation aborts here.
	if (newSubFailure) 
		abortMe();

	return 0;
}

// Handles catastrophic errors.
function abortMe(err) 
{
	if (!abortCalled) 
	{
		su.AbortInstall();
		abortCalled = true;
	}
}
// End of functions.

// MAIN()
// ===================== START ACTUAL INSTALLATION =========================
// 
// Global variable declarations
// 
if (su != null)
{
	err = checkSystemEnvironment();
	if (err == 0) 
	{
		err = setupFiles(su);
		if (err == 0) 
		{
			err = su.FinalizeInstall();             // This actually copies all the files.
			if (err == 0) 
			{
				navigator.plugins.refresh(true);
			}
			else 
				abortMe(err);
		}
		else 
		{
			abortMe(err);
		}
	} 
	else 
	{
		abortMe(err);
	} 
}