functions/groups/Invoke-DMGroup.ps1

function Invoke-DMGroup {
    <#
        .SYNOPSIS
            Updates the group configuration of a domain to conform to the configured state.
         
        .DESCRIPTION
            Updates the group configuration of a domain to conform to the configured state.
     
        .PARAMETER InputObject
            Test results provided by the associated test command.
            Only the provided changes will be executed, unless none were specified, in which ALL pending changes will be executed.
         
        .PARAMETER Server
            The server / domain to work with.
         
        .PARAMETER Credential
            The credentials to use for this operation.
 
        .PARAMETER EnableException
            This parameters disables user-friendly warnings and enables the throwing of exceptions.
            This is less user friendly, but allows catching exceptions in calling scripts.
 
        .PARAMETER Confirm
            If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.
         
        .PARAMETER WhatIf
            If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.
         
        .EXAMPLE
            PS C:\> Innvoke-DMGroup -Server contoso.com
 
            Updates the groups in the domain contoso.com to conform to configuration
    #>

    [CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = 'Low')]
    param (
        [Parameter(ValueFromPipeline = $true)]
        $InputObject,
        
        [PSFComputer]
        $Server,
        
        [PSCredential]
        $Credential,

        [switch]
        $EnableException
    )
    
    begin {
        $parameters = $PSBoundParameters | ConvertTo-PSFHashtable -Include Server, Credential
        $parameters['Debug'] = $false
        Assert-ADConnection @parameters -Cmdlet $PSCmdlet
        Invoke-Callback @parameters -Cmdlet $PSCmdlet
        Assert-Configuration -Type Groups -Cmdlet $PSCmdlet
        Set-DMDomainContext @parameters
    }
    process {
        if (-not $InputObject) {
            $InputObject = Test-DMGroup @parameters
        }
        foreach ($testItem in $InputObject) {
            # Catch invalid input - can only process test results
            if ($testItem.PSObject.TypeNames -notcontains 'DomainManagement.Group.TestResult') {
                Stop-PSFFunction -String 'General.Invalid.Input' -StringValues 'Test-DMGroup', $testItem -Target $testItem -Continue -EnableException $EnableException
            }
            
            switch ($testItem.Type) {
                'ShouldDelete' {
                    Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Delete' -Target $testItem -ScriptBlock {
                        Remove-ADGroup @parameters -Identity $testItem.ADObject.ObjectGUID -ErrorAction Stop -Confirm:$false
                    } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue
                }
                'Create' {
                    $targetOU = Resolve-String -Text $testItem.Configuration.Path
                    try { $null = Get-ADObject @parameters -Identity $targetOU -ErrorAction Stop }
                    catch { Stop-PSFFunction -String 'Invoke-DMGroup.Group.Create.OUExistsNot' -StringValues $targetOU, $testItem.Identity -Target $testItem -EnableException $EnableException -Continue }
                    Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Create' -Target $testItem -ScriptBlock {
                        $newParameters = $parameters.Clone()
                        $newParameters += @{
                            Name          = (Resolve-String -Text $testItem.Configuration.Name)
                            Description   = (Resolve-String -Text $testItem.Configuration.Description)
                            Path          = $targetOU
                            GroupCategory = $testItem.Configuration.Category
                            GroupScope    = $testItem.Configuration.Scope
                            Confirm       = $false
                        }
                        New-ADGroup @newParameters
                    } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue
                }
                'MultipleOldGroups' {
                    Stop-PSFFunction -String 'Invoke-DMGroup.Group.MultipleOldGroups' -StringValues $testItem.Identity, ($testItem.ADObject.Name -join ', ') -Target $testItem -EnableException $EnableException -Continue -Tag 'group', 'critical', 'panic'
                }
                'Rename' {
                    Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Rename' -ActionStringValues (Resolve-String -Text $testItem.Configuration.Name) -Target $testItem -ScriptBlock {
                        Set-ADGroup @parameters -Identity $testItem.ADObject.ObjectGUID -SamAccountName (Resolve-String -Text $testItem.Configuration.SamAccountName) -ErrorAction Stop -Confirm:$false
                        if ((Resolve-String -Text $testItem.Configuration.Name) -cne $testItem.ADObject.Name) {
                            Rename-ADObject @parameters -Identity $testItem.ADObject.ObjectGUID -NewName (Resolve-String -Text $testItem.Configuration.Name) -ErrorAction Stop -Confirm:$false
                        }
                    } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue
                }
                'Changed' {
                    if ($testItem.Changed -contains 'Path') {
                        $targetOU = Resolve-String -Text $testItem.Configuration.Path
                        try { $null = Get-ADObject @parameters -Identity $targetOU -ErrorAction Stop }
                        catch { Stop-PSFFunction -String 'Invoke-DMGroup.Group.Update.OUExistsNot' -StringValues $testItem.Identity, $targetOU -Target $testItem -EnableException $EnableException -Continue }

                        Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Move' -ActionStringValues $targetOU -Target $testItem -ScriptBlock {
                            $null = Move-ADObject @parameters -Identity $testItem.ADObject.ObjectGUID -TargetPath $targetOU -ErrorAction Stop -Confirm:$false
                        } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue
                    }
                    $changes = @{ }
                    if ($testItem.Changed -contains 'Description') { $changes['Description'] = (Resolve-String -Text $testItem.Configuration.Description) }
                    if ($testItem.Changed -contains 'Category') { $changes['GroupCategory'] = (Resolve-String -Text $testItem.Configuration.Category) }
                    
                    if ($changes.Keys.Count -gt 0) {
                        Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Update' -ActionStringValues ($changes.Keys -join ", ") -Target $testItem -ScriptBlock {
                            $null = Set-ADObject @parameters -Identity $testItem.ADObject.ObjectGUID -ErrorAction Stop -Replace $changes -Confirm:$false
                        } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue
                    }
                    if ($testItem.Changed -contains 'Scope') {
                        $targetScope = Resolve-String -Text $testItem.Configuration.Scope
                        if ($targetScope -notin ([Enum]::GetNames([Microsoft.ActiveDirectory.Management.ADGroupScope]))) {
                            Stop-PSFFunction -String 'Invoke-DMGroup.Group.InvalidScope' -StringValues $testItem, $targetScope -Continue -EnableException $EnableException -Target $testItem
                        }

                        Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Update.Scope' -ActionStringValues $testItem, $testItem.ADObject.GroupScope, $targetScope -Target $testItem -ScriptBlock {
                            $null = Set-ADGroup @parameters -Identity $testItem.ADObject.ObjectGUID -GroupScope Universal -ErrorAction Stop -Confirm:$false
                            $null = Set-ADGroup @parameters -Identity $testItem.ADObject.ObjectGUID -GroupScope $targetScope -ErrorAction Stop -Confirm:$false
                        } -EnableException $EnableException.ToBool() -PSCmdlet $PSCmdlet -Continue
                    }
                    if ($testItem.Changed -contains 'Name') {
                        Invoke-PSFProtectedCommand -ActionString 'Invoke-DMGroup.Group.Update.Name' -ActionStringValues (Resolve-String -Text $testItem.Configuration.Name) -Target $testItem -ScriptBlock {
                            $testItem.ADObject | Rename-ADObject @parameters -NewName (Resolve-String -Text $testItem.Configuration.Name) -ErrorAction Stop -Confirm:$false
                        } -EnableException $EnableException -PSCmdlet $PSCmdlet -Continue
                    }
                }
            }
        }
    }
}