Chocolatey Misc Helpers Extension 0.0.2

# chocolatey-misc-helpers.extension v0.0.2 (07-19-2018) by Bill Curran - public domain
# Show-ToastMessage.ps1 - Sends a Windows toast message.
# Uses BurntToast (https://github.com/Windos/BurntToast) if installed. NOTE: v0.5.0+ no longer works on Windows 8.
# Otherwise uses the code I blatantly stole from https://gist.github.com/Windos/9aa6a684ac583e0d38a8fa68196bc2dc
# Example of use: Show-ToastMessage "$packageName installed." "Version $env:packageVersion."
# Not guaranteed to work on Windows versions other than Windows 10 and Server 2016. 
# Should do nothing on other versions; i.e. tested on Windows Server 2012 R2 - no messages, no errors.

function Show-ToastMessage($MessageLine1, $MessageLine2){
# 08-31-2018
# This function has been disallowed by the Chocolatey team as "pop ups" need to be 100% opt-in.
# Its existence is for backward compatibility, actual function NULLIFIED.
# I argued that by having BurntToast installed, users WANT the toast messages. The Chocolatey Team still disagreed. :(
# This might return in a different form in the future.
return

if (!(Test-Path "$ChocolateyInstall\extensions\chocolatey-misc-helpers\choco.ico")){
     [System.Reflection.Assembly]::LoadWithPartialName('System.Drawing')  | Out-Null
     [System.Drawing.Icon]::ExtractAssociatedIcon("$env:ChocolateyInstall\choco.exe").ToBitmap().Save("$env:ChocolateyInstall\extensions\chocolatey-misc-helpers\choco.ico")
}

if (Get-Module -ListAvailable -Name BurntToast -ErrorAction SilentlyContinue){
     New-BurntToastNotification -Text "Chocolatey ($env:packageName)", "$MessageLine1", "$MessageLine2" -AppLogo "$env:ChocolateyInstall\extensions\chocolatey-misc-helpers\choco.ico" -ErrorAction SilentlyContinue
   } else {
     $app = '{1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}\WindowsPowerShell\v1.0\powershell.exe'
     [Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime] | Out-Null
     $Template = [Windows.UI.Notifications.ToastTemplateType]::ToastImageAndText01
     #Gets the Template XML so we can manipulate the values
     [xml]$ToastTemplate = ([Windows.UI.Notifications.ToastNotificationManager]::GetTemplateContent($Template).GetXml())
     [xml]$ToastTemplate = @"
<toast launch="app-defined-string">
  <visual>
    <binding template="ToastGeneric">
      <text>Chocolatey ($env:packageName)</text>	
      <text>$MessageLine1</text>
      <text>$MessageLine2</text>
	  <branding>logo</branding>
	  <image placement="appLogoOverride" src="$env:ChocolateyInstall\extensions\chocolatey-misc-helpers\choco.ico"/>
    </binding>
  </visual>
</toast>
"@
     $ToastXml = New-Object -TypeName Windows.Data.Xml.Dom.XmlDocument
     $ToastXml.LoadXml($ToastTemplate.OuterXml)
     $notify = [Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier($app) 
     $notify.Show($ToastXml)
    }
}