Scheduled Remote Install with Citrix Scheduled Reboot

RemoteInstall.ps1

#########################################################
# FileName		RemoteInstall.ps1               #
# Version		0.3			        #
# Author		Nicolas                         #
#########################################################
# ChangeLog                                             #
#                                                       #
# Version		0.3			        #
# Author 		Nicolas                         #
# Content       	Utilisation d'un fichier XML 
# pour stocker les actions                              #
#                                                       #
# Version		0.2			        #
# Author 		Nicolas                         #
# Content		Ajout d'un système de multi     #
# installation de composant "Actions List"              #
#                                                       #
# Version 		0.1			        #
# Author 		Nicolas                         #
# Content		Initial Realase                 #
#########################################################
# TODO                                                  #
# WSUS Forced Install                                   #
#########################################################

#Chargement des Actions depuis le fichier action_list.xml

([xml]( gc .\action_list.xml)).actions.action |% { new-variable -Name $_.name -value $_ }

#Déploiement
#Ajout des composant Citrix si non chargé
If ((Get-PSSnapin -Name "Citrix*" -ErrorAction SilentlyContinue | Measure-Object).count -eq 0) {Add-PSSnapin -Name "Citrix*"}
Write-host Installation

import-csv .\Folders.txt -delim ';' |% {
	#Récupération de la liste des serveurs qui vont redemarrer dans 1h
	$servers = get-xaserver -FolderPath $_.Folder |Select ServerNAme,@{N="Last reboot";E={(get-date).AddSeconds( - (gwmi -ComputerName $_.ServerNAme Win32_PerfFormattedData_PerfOS_System).systemuptime) }} |? { $_.'Last Reboot'.dayOfweek -eq [DateTime]::Now.AddDays(-7).DayOfWeek }
	$action = $_.action
	if( $servers -and (Get-Variable |? { $_.NAme -eq $action })){#L'action existe ?
		$myAction = get-variable $action -valueonly
		$servers |% { 
			Write-host $_.ServerName
			#copie des fichiers nécessaire
			if( -not (test-path \\$($_.serverName)\c$\tmp )){ new-item \\$($_.serverName)\c$\tmp -type directory}
			if( $myAction.file ){
				cpi $myAction.file \\$($_.serverName)\c$\tmp
			}
			#lancement de l'installation
			$process = [WMICLASS]"\\$($_.ServerName)\ROOT\CIMV2:win32_process"
			$result = $process.Create($myAction.script)
		}
		#temporisation
		Start-Sleep -second 120
		Write-host suppression
		$servers |% { 
			Write-host $_.ServerName
			if( $myAction.clean ){
				#Attente de la fin d'installation
				while( -not( Select-String \\$($_.ServerNAme)\c$\tmp\$($myAction.clean[0]) -pattern ($myAction.clean[1]) -quiet )){
					Start-Sleep -second 120
				}
				#Suppression des fichiers copiés
				if( (get-variable $action -valueonly).file ){
					remove-item \\$($_.ServerNAme)\c$\tmp\$( Split-PAth -Leaf $myAction.file )
				}
			}
		}
	}
}