T2Tscripts

2.1.5

internal/functions/Get-Requirement.ps1

Function Get-Requirement {
    <#
    .SYNOPSIS
    Checks requirements
     
    .DESCRIPTION
    Checks requirements
     
    .PARAMETER Requirements
    Lists the available Services requirements to be checked. Currently Available is 'AADConnect'.
     
    .EXAMPLE
    PS C:\> Get-Requirement -Requirements AADConnect
    Prompt Azure AD Connect questionary
    #>

    [CmdletBinding()]
    param (
        [ValidateSet('AADConnect')]
        [String[]]
        $Requirements
    )

    Switch ($Requirements)
    {
        AADConnect
        {
            $title    = Write-PSFMessage -Level Output -Message  "AD Sync status"
            $question = Write-PSFMessage -Level Output -Message  "Did you stopped the Azure AD Connect sync cycle?"
            $choices  = '&Yes', '&No'
            $decision = $Host.UI.PromptForChoice($title, $question, $choices, 1)

            if ($decision -eq 0)
            {
                Write-PSFMessage -Level Output -Message  "Loading parameters..."
            } else {
            
                Write-PSFMessage -Level Output -Message  "AD sync cycle should be stopped before moving forward."
            
                $title1    = Write-PSFMessage -Level Output -Message  ""
                $question1 = Write-PSFMessage -Level Output -Message  "Type 'Yes' if you want that we automatically stop AD Sync cycle or type 'No' if you want to stop yourself."
                $choices1  = '&Yes', '&No'
                $decision1 = $Host.UI.PromptForChoice($title1, $question1, $choices1, 1)

                if ($decision1 -eq 0)
                {
                    $AADC = Read-Host "$(Get-Date -Format "HH:mm:ss") - Please enter the Azure AD Connect server hostname"
                    Write-PSFMessage -Level Output -Message  "Disabling AD Sync cycle..."
                    $sessionAADC = New-PSSession -ComputerName $AADC
                    Invoke-Command {
                        Import-Module ADSync
                        Set-ADSyncScheduler -SyncCycleEnabled $false
                    } -Session $sessionAADC

                    $SynccycleStatus = Invoke-Command {
                        Import-Module ADSync
                        Get-ADSyncScheduler | Select-Object SyncCycleEnabled
                    } -Session $sessionAADC

                    if ($SynccycleStatus.SyncCycleEnabled -eq $false)
                    {
                        Write-PSFMessage -Level Output -Message  "Azure AD sync cycle succesfully disabled."
                        $AADCStoped = 1
                    }
                    else
                    {
                        Write-PSFMessage -Level Output -Message  "Azure AD sync cycle could not be stopped, please stop it manually with the following cmdlet: Set-ADSyncScheduler -SyncCycleEnabled 0"
                        $AADCStoped = 0
                    }
                }
                else
                {
                    $AADCStoped = 0
                    Write-PSFMessage -Level Output -Message  "Please stop the AD sync cycle and run the script again."
                }
            }

            Get-PSSession | Remove-PSSession
        }
    }

    return $AADCStoped
}