param($machine)

# Remote Projection using Titanium script v 2.0 2/18/15 by Bruce Cowper
# This script launches the Titanium app on the local machine and provides a toggle on / off mechanism. i.e. if Titanium is not running, it it launched, if it is running, it is killed. 
# It also triggers the running of the Launch Titanium script on the remote machine via the use of the LAUNCHTT trigger in the Four Winds Interactive tool to set the remote $machine in to recieve mode
# the $machine parameter allows for a setting a remote machine name.


function Running ($app)
    {
    # This function tests to see if the $app is running and either returns the process ID, or $False
    $Running = Get-Process $app -ErrorAction SilentlyContinue
    if($Running -eq $null)
        {
        $Running = $False
        }
    return $Running
    }

# set variable defaults
IF ($machine -eq $null) # if no $machine paramater is passed, set a default. Edit as required.
    {
    $machine = "ebcdemo_yoga"
    }

# note: code is not used n this instance, but just in case... setting this variable will pass a code to the remote Titanium machine
$code = ""
$args = $machine+" "+$code

$appname = "TitaniumApp"

# check to see what OS version is installed - note that the path for Titanium will change between the x86 and x64 bit OS versions.
if ((Get-WmiObject -Class Win32_OperatingSystem -ea 0).OSArchitecture -eq '64-bit') 

    {            
    $apppath = "C:\Program Files (x86)\Microsoft Research\Titanium Projection\"         
    } 
else  
    {            
    $apppath = "C:\Program Files\Microsoft Research\Titanium Projection\"
    }

$fullapp = $apppath+$appname
$running = $False

# set CMS variables, Trigger URL and connection ID
$URL = "http://"+$machine+":10561/player/readerId/LAUNCHTT"
$username = "ebc"
$password = "Cloud_33"
$domain = ""

# import window handler functions
$sig = '[DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);'
Add-Type -MemberDefinition $sig -name NativeMethods -namespace Win32

# Minimize Powershell
$PSId = @(Get-Process "powershell" -ErrorAction SilentlyContinue)[0].MainWindowHandle 
[Win32.NativeMethods]::ShowWindowAsync($PSId, 2)

# check to see if the $app is running

$running = Running ($appname)

If ($running -eq $False) #if the app is not running
    {
    # send command to remote CMS machine to launch Titanium
    $webclient = new-object System.Net.WebClient
    $webclient.Credentials = new-object System.Net.NetworkCredential($username, $password, $domain)
    $webpage = $webclient.DownloadString($URL)

    # start app - note make sure the working directory $apppath is set as Titanium will fail to authenticate
    $app = start-process $fullapp -ArgumentList $args -workingdirectory $apppath -passthru

    start-sleep 1
    
    # minimize window
    If ($app.MainWindowHandle)
        {
        [Win32.NativeMethods]::ShowWindowAsync($app.MainWindowHandle, 6)
        }
    }
Else
    {
    # If the process is already running, we want to kill it. This allows us to toggle the app state
    Get-Process $appname | Stop-Process
    
    # send command to remote CMS machine to kill Titanium - watch for getting the apps out of sync! The script for launching the Titanium projector will kill the process if it is already running (toggle on/off)
    $webclient = new-object System.Net.WebClient
    $webclient.Credentials = new-object System.Net.NetworkCredential($username, $password, $domain)
    $webpage = $webclient.DownloadString($URL)
    }