var WshShell = WScript.CreateObject("WScript.Shell");
var ScriptPath = WScript.ScriptFullName.replace(/\\[^\\]*$/, "");
var FileSystemObject = new ActiveXObject("Scripting.FileSystemObject");

function RunSetup(args)
{
    var OKButton = 0, ErrorIcon = 16, ForReading = 1;
    var path, command, i, ExecObject, text;
    path = FileSystemObject.BuildPath(ScriptPath, "setup.exe");
    command = "\"" + path + "\"";
    for(i = 0; i < args.Length; i++)
	command += " \"" + args.Item(i) + "\"";
    ExecObject = WshShell.Exec(command);
    if (!ExecObject.StdErr.AtEndOfStream)
    {
	text = "Setup failed for an unexpected reason. Please report "
	  + "the following error to support@city-occupational.co.uk:\n\n"
	  + ExecObject.StdErr.ReadAll();
	WshShell.Popup(text, 0, "Setup failed", OKButton + ErrorIcon);
	return false;
    }
    else if (ExecObject.ExitCode)
    {
	text = "Setup failed without giving a reason. Please report "
	  + "this to support@city-occupational.co.uk";
	WshShell.Popup(text, 0, "Setup failed", OKButton + ErrorIcon);
	return false;
    }
    return true;
}

function Install()
{
    var path;
    path = FileSystemObject.BuildPath(ScriptPath, "pre-inst.exe");
    WshShell.Run("\"" + path + "\"" + " --post \"wscript.exe"
      + " \\\"" + WScript.ScriptFullName + "\\\""
      + " --post %INSTALL_PREFIX% %TEST_RESULT%\"",
      7, true);
}

function Uninstall()
{
    var path;
    path = FileSystemObject.BuildPath(ScriptPath, "pre-inst.exe");
    WshShell.Run("\"" + path + "\"" + " -u --post \"wscript.exe"
      + " \\\"" + WScript.ScriptFullName + "\\\"" + " --postun\"", 7, true);
}

function PostInstall()
{
    var OKButton = 0, InfoIcon = 64, text;
    var test_result, install_prefix, path, args;
    install_prefix = WScript.Arguments.Item(1);
    test_result = WScript.Arguments.Item(2);
    if (test_result == "pass")
    {
	path = FileSystemObject.BuildPath(install_prefix,
	  "bin\\app-manager.exe");
	WshShell.Run("\"" + path + "\" --paths --setup \"" + ScriptPath + "\"");
    }
    else
    {
	args = { Length:0, Item:function(){return nil} };
	if (RunSetup(args))
	{
	    text = "Software installation completed successfully.";
	    WshShell.Popup(text, 0, "Software Installation",
	      OKButton + InfoIcon);
	}
    }
}

function PostUninstall()
{
    var args = { Length:1, Item:function(){return "-u"} };
    var OKButton = 0, InfoIcon = 64, text;
    if (RunSetup(args))
    {
	text = "Uninstall completed successfully.";
	WshShell.Popup(text, 0, "Uninstall", OKButton + InfoIcon);
    }
}

if (WScript.Arguments.Length < 1)
    Install()
else if (WScript.Arguments.Item(0) == "-u")
    Uninstall()
else if (WScript.Arguments.Length >= 3 && WScript.Arguments.Item(0) == "--post")
    PostInstall()
else if (WScript.Arguments.Item(0) == "--postun")
    PostUninstall()