# The sample scripts are not supported under any Microsoft standard support 
# program or service. The sample scripts are provided AS IS without warranty 
# of any kind. Microsoft further disclaims all implied warranties including, 
# without limitation, any implied warranties of merchantability or of fitness
# for a particular purpose. The entire risk arising out of the use or 
# performance of the sample scripts and documentation remains with you. In no
# event shall Microsoft, its authors, or anyone else involved in the creation,
# production, or delivery of the scripts be liable for any damages whatsoever
# (including, without limitation, damages for loss of business profits,
# business interruption, loss of business information, or other pecuniary
# loss) arising out of the use of or inability to use the sample scripts or
# documentation, even if Microsoft has been advised of the possibility of 
# such damages.
#
#
# PowerShell script to automagically import all of the
# relevant JEE MPs.  This is done by first importing the MPB and
# then importing all of the MP (minus the Library of course)
#
# Authoring:     Christopher Crammond
# Date Created:  April 24th, 2012
# Date Modified: April 24th, 2012
#
# Version:       0.0.1
#

# Needed for SCOM SDK
$ipProperties = [System.Net.NetworkInformation.IPGlobalProperties]::GetIPGlobalProperties()
$rootMS = "{0}.{1}" -f $ipProperties.HostName, $ipProperties.DomainName


#######################################################################
#
# Helper method that will remove the list of given Management Packs.
#
function RemoveMPsHelper
{param($mpList)
  foreach ($mp in $mpList)
  {
    Echo "    * Uninstalling $mp"
    Uninstall-ManagementPack -managementpack $mp
  }
}

#######################################################################
#
# Remove 'all' of the JEE MPs as well as MPs that are dependent on them.
# The remove is done by finding the base MP (Microsoft.JEE.Library) and finding
# all MPs that depend on it.  This list will be presented to the user prompting
# if the user wants to continue and removing the list of presented MPs
#
function RemoveMPs
{param($mp)
  Import-Module 'E:\Program Files\System Center 2012\Operations Manager\Powershell\OperationsManager\OperationsManager.psd1'

  $listOfManagementPacksToRemove = Get-SCOMManagementPack -Name $mp -Recurse
  $listOfManagementPacksToRemove | format-table name
  
  $title = "Uninstall Management Packs"
  $message = "Do you want to uninstall the above management packs"

  $yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Uninstall selected Management Packs."
  $no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Do not remove Management Packs."
  $options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no)

  $result = $host.ui.PromptForChoice($title, $message, $options, 0) 

  switch ($result)
  {
        0 {RemoveMPsHelper $listOfManagementPacksToRemove}
        1 {"Exiting without removing any management packs"}
  }
}

#######################################################################
# Begin Script functionality
#
if ($args.Count -ne 1)
{
  Echo "Improper command line arguments"
  Echo ""
  Echo "Specify a command line argument to either import or export MPs"
  exit 1
}
else
{
  $firstArg = $args[0]

  add-pssnapin "Microsoft.EnterpriseManagement.OperationsManager.Client";
  $cwd = get-location
  set-location "OperationsManagerMonitoring::";
  $mgConnection = new-managementGroupConnection -ConnectionString:$rootMS;

  RemoveMPs $firstArg

  set-location $cwd
  remove-pssnapin "Microsoft.EnterpriseManagement.OperationsManager.Client";  
}