DSCResources/MSFT_xExchDatabaseAvailabilityGroup/MSFT_xExchDatabaseAvailabilityGroup.psm1

function Get-TargetResource
{
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSDSCUseVerboseMessageInDSCResource", "")]
    [CmdletBinding()]
    [OutputType([System.Collections.Hashtable])]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Name,

        [Parameter(Mandatory = $true)]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.Credential()]
        $Credential,

        [Parameter(Mandatory = $true)]
        [System.Int32]
        $AutoDagTotalNumberOfServers,

        [Parameter()]
        [System.String]
        $AlternateWitnessDirectory,

        [Parameter()]
        [System.String]
        $AlternateWitnessServer,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoRedistributeEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoReseedEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerDatabase,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerVolume,

        [Parameter()]
        [System.String]
        $AutoDagDatabasesRootFolderPath,

        [Parameter()]
        [System.Boolean]
        $AutoDagDiskReclaimerEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagTotalNumberOfDatabases,

        [Parameter()]
        [System.String]
        $AutoDagVolumesRootFolderPath,

        [Parameter()]
        [System.String[]]
        $DatabaseAvailabilityGroupIpAddresses,

        [Parameter()]
        [ValidateSet('Off','DagOnly')]
        [System.String]
        $DatacenterActivationMode,

        [Parameter()]
        [System.String]
        $DomainController,

        [Parameter()]
        [ValidateSet('NTFS','ReFS')]
        [System.String]
        $FileSystem,

        [Parameter()]
        [System.Boolean]
        $ManualDagNetworkConfiguration,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkCompression,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkEncryption,

        [Parameter()]
        [System.String]
        $PreferenceMoveFrequency,

        [Parameter()]
        [System.Boolean]
        $ReplayLagManagerEnabled,

        [Parameter()]
        [System.UInt16]
        $ReplicationPort,

        [Parameter()]
        [System.Boolean]
        $SkipDagValidation,

        [Parameter()]
        [System.String]
        $WitnessDirectory,

        [Parameter()]
        [System.String]
        $WitnessServer
    )

    LogFunctionEntry -Parameters @{"Name" = $Name} -Verbose:$VerbosePreference

    #Establish remote Powershell session
    GetRemoteExchangeSession -Credential $Credential -CommandsToLoad "Get-DatabaseAvailabilityGroup" -Verbose:$VerbosePreference

    $dag = GetDatabaseAvailabilityGroup @PSBoundParameters

    if ($null -ne $dag)
    {
        $returnValue = @{
            Name                                 = [System.String] $Name
            AlternateWitnessDirectory            = [System.String] $dag.AlternateWitnessDirectory
            AlternateWitnessServer               = [System.String] $dag.AlternateWitnessServer
            AutoDagAutoReseedEnabled             = [System.Boolean] $dag.AutoDagAutoReseedEnabled
            AutoDagDatabaseCopiesPerDatabase     = [System.Int32] $dag.AutoDagDatabaseCopiesPerDatabase
            AutoDagDatabaseCopiesPerVolume       = [System.Int32] $dag.AutoDagDatabaseCopiesPerVolume
            AutoDagDatabasesRootFolderPath       = [System.String] $dag.AutoDagDatabasesRootFolderPath
            AutoDagDiskReclaimerEnabled          = [System.Boolean] $dag.AutoDagDiskReclaimerEnabled
            AutoDagTotalNumberOfDatabases        = [System.Int32] $dag.AutoDagTotalNumberOfDatabases
            AutoDagTotalNumberOfServers          = [System.Int32] $dag.AutoDagTotalNumberOfServers
            AutoDagVolumesRootFolderPath         = [System.String] $dag.AutoDagVolumesRootFolderPath
            DatabaseAvailabilityGroupIpAddresses = [System.String[]] $dag.DatabaseAvailabilityGroupIpAddresses
            DatacenterActivationMode             = [System.String] $dag.DatacenterActivationMode
            ManualDagNetworkConfiguration        = [System.Boolean] $dag.ManualDagNetworkConfiguration
            NetworkCompression                   = [System.String] $dag.NetworkCompression
            NetworkEncryption                    = [System.String] $dag.NetworkEncryption
            ReplayLagManagerEnabled              = [System.Boolean] $dag.ReplayLagManagerEnabled
            ReplicationPort                      = [System.UInt16] $dag.ReplicationPort
            WitnessDirectory                     = [System.String] $dag.WitnessDirectory
            WitnessServer                        = [System.String] $dag.WitnessServer
        }

        $serverVersion = Get-ExchangeVersion

        if ($serverVersion -in '2016','2019')
        {
            $returnValue.Add("AutoDagAutoRedistributeEnabled", [System.Boolean]$dag.AutoDagAutoRedistributeEnabled)
            $returnValue.Add("FileSystem", [System.String]$dag.FileSystem)
            $returnValue.Add("PreferenceMoveFrequency", [System.String]$dag.PreferenceMoveFrequency)
        }
    }

    $returnValue
}

function Set-TargetResource
{
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSDSCUseVerboseMessageInDSCResource", "")]
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Name,

        [Parameter(Mandatory = $true)]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.Credential()]
        $Credential,

        [Parameter(Mandatory = $true)]
        [System.Int32]
        $AutoDagTotalNumberOfServers,

        [Parameter()]
        [System.String]
        $AlternateWitnessDirectory,

        [Parameter()]
        [System.String]
        $AlternateWitnessServer,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoRedistributeEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoReseedEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerDatabase,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerVolume,

        [Parameter()]
        [System.String]
        $AutoDagDatabasesRootFolderPath,

        [Parameter()]
        [System.Boolean]
        $AutoDagDiskReclaimerEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagTotalNumberOfDatabases,

        [Parameter()]
        [System.String]
        $AutoDagVolumesRootFolderPath,

        [Parameter()]
        [System.String[]]
        $DatabaseAvailabilityGroupIpAddresses,

        [Parameter()]
        [ValidateSet('Off','DagOnly')]
        [System.String]
        $DatacenterActivationMode,

        [Parameter()]
        [System.String]
        $DomainController,

        [Parameter()]
        [ValidateSet('NTFS','ReFS')]
        [System.String]
        $FileSystem,

        [Parameter()]
        [System.Boolean]
        $ManualDagNetworkConfiguration,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkCompression,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkEncryption,

        [Parameter()]
        [System.String]
        $PreferenceMoveFrequency,

        [Parameter()]
        [System.Boolean]
        $ReplayLagManagerEnabled,

        [Parameter()]
        [System.UInt16]
        $ReplicationPort,

        [Parameter()]
        [System.Boolean]
        $SkipDagValidation,

        [Parameter()]
        [System.String]
        $WitnessDirectory,

        [Parameter()]
        [System.String]
        $WitnessServer
    )

    LogFunctionEntry -Parameters @{"Name" = $Name} -Verbose:$VerbosePreference

    #Establish remote Powershell session
    GetRemoteExchangeSession -Credential $Credential -CommandsToLoad "Get-DatabaseAvailabilityGroup","Set-DatabaseAvailabilityGroup","New-DatabaseAvailabilityGroup" -Verbose:$VerbosePreference

    #create array of Exchange 2016 only parameters
    [array]$Exchange2016Only = 'AutoDagAutoRedistributeEnabled','FileSystem','PreferenceMoveFrequency'

    $serverVersion = Get-ExchangeVersion

    if ($serverVersion -eq '2013')
    {
        foreach ($Exchange2016Parameter in $Exchange2016Only)
        {
            #Check for non-existent parameters in Exchange 2013
            Remove-NotApplicableParamsForVersion -PSBoundParametersIn $PSBoundParameters -ParamName "$Exchange2016Parameter"  -ResourceName 'xExchDatabaseAvailabilityGroup' -ParamExistsInVersion '2016'
        }
    }
    elseif ($serverVersion -in '2016','2019')
    {
        Write-Verbose -Message "No need to remove parameters"
    }
    else
    {
        Write-Verbose -Message "Could not detect Exchange version"
    }

    SetEmptyStringParamsToNull -PSBoundParametersIn $PSBoundParameters

    $dag = GetDatabaseAvailabilityGroup @PSBoundParameters

    #We need to create the DAG
    if ($null -eq $dag)
    {
        #Create a copy of the original parameters
        $originalPSBoundParameters = @{} + $PSBoundParameters

        #Remove parameters that don't exist in New-DatabaseAvailabilityGroup
        RemoveParameters -PSBoundParametersIn $PSBoundParameters -ParamsToKeep "Name","DatabaseAvailabilityGroupIpAddresses","WitnessDirectory","WitnessServer","DomainController"

        #Create the DAG
        $dag = New-DatabaseAvailabilityGroup @PSBoundParameters

        if ($null -ne $dag)
        {
            #Add original props back
            AddParameters -PSBoundParametersIn $PSBoundParameters -ParamsToAdd $originalPSBoundParameters
        }
        else
        {
            throw "Failed to create new DAG."
        }
    }

    #Modify existing DAG
    if ($null -ne $dag)
    {
        #convert Name to Identity, and Remove Credential
        AddParameters -PSBoundParametersIn $PSBoundParameters -ParamsToAdd @{"Identity" = $PSBoundParameters["Name"]}
        RemoveParameters -PSBoundParametersIn $PSBoundParameters -ParamsToRemove "Name","Credential"

        #If not all members are in DAG yet, remove params that require them to be
        if ($dag.Servers.Count -lt $AutoDagTotalNumberOfServers)
        {
            if ($PSBoundParameters.ContainsKey("DatacenterActivationMode") -and $DatacenterActivationMode -like "DagOnly")
            {
                RemoveParameters -PSBoundParametersIn $PSBoundParameters -ParamsToRemove "DatacenterActivationMode"
            }
        }

        Set-DatabaseAvailabilityGroup @PSBoundParameters
    }
}


function Test-TargetResource
{
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSDSCUseVerboseMessageInDSCResource", "")]
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Name,

        [Parameter(Mandatory = $true)]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.Credential()]
        $Credential,

        [Parameter(Mandatory = $true)]
        [System.Int32]
        $AutoDagTotalNumberOfServers,

        [Parameter()]
        [System.String]
        $AlternateWitnessDirectory,

        [Parameter()]
        [System.String]
        $AlternateWitnessServer,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoRedistributeEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoReseedEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerDatabase,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerVolume,

        [Parameter()]
        [System.String]
        $AutoDagDatabasesRootFolderPath,

        [Parameter()]
        [System.Boolean]
        $AutoDagDiskReclaimerEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagTotalNumberOfDatabases,

        [Parameter()]
        [System.String]
        $AutoDagVolumesRootFolderPath,

        [Parameter()]
        [System.String[]]
        $DatabaseAvailabilityGroupIpAddresses,

        [Parameter()]
        [ValidateSet('Off','DagOnly')]
        [System.String]
        $DatacenterActivationMode,

        [Parameter()]
        [System.String]
        $DomainController,

        [Parameter()]
        [ValidateSet('NTFS','ReFS')]
        [System.String]
        $FileSystem,

        [Parameter()]
        [System.Boolean]
        $ManualDagNetworkConfiguration,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkCompression,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkEncryption,

        [Parameter()]
        [System.String]
        $PreferenceMoveFrequency,

        [Parameter()]
        [System.Boolean]
        $ReplayLagManagerEnabled,

        [Parameter()]
        [System.UInt16]
        $ReplicationPort,

        [Parameter()]
        [System.Boolean]
        $SkipDagValidation,

        [Parameter()]
        [System.String]
        $WitnessDirectory,

        [Parameter()]
        [System.String]
        $WitnessServer
    )

    LogFunctionEntry -Parameters @{"Name" = $Name} -Verbose:$VerbosePreference

    #Establish remote Powershell session
    GetRemoteExchangeSession -Credential $Credential -CommandsToLoad "Get-DatabaseAvailabilityGroup" -Verbose:$VerbosePreference

    #create array of Exchange 2016 only parameters
    [array]$Exchange2016Only = 'AutoDagAutoRedistributeEnabled','FileSystem','PreferenceMoveFrequency'

    $serverVersion = Get-ExchangeVersion

    if ($serverVersion -eq '2013')
    {
        foreach ($Exchange2016Parameter in $Exchange2016Only)
        {
            #Check for non-existent parameters in Exchange 2013
            Remove-NotApplicableParamsForVersion -PSBoundParametersIn $PSBoundParameters -ParamName "$Exchange2016Parameter"  -ResourceName 'xExchDatabaseAvailabilityGroup' -ParamExistsInVersion '2016'
        }
    }
    elseif ($serverVersion -in '2016','2019')
    {
        Write-Verbose -Message "No need to remove parameters"
    }
    else
    {
        Write-Verbose -Message "Could not detect Exchange version"
    }

    $dag = GetDatabaseAvailabilityGroup @PSBoundParameters

    $testResults = $true

    if ($null -eq $dag)
    {
        Write-Verbose -Message 'Unable to retrieve Database Availability Group settings'

        $testResults = $false
    }
    else
    {
        if (!(VerifySetting -Name "AlternateWitnessDirectory" -Type "String" -ExpectedValue $AlternateWitnessDirectory -ActualValue $dag.AlternateWitnessDirectory -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AlternateWitnessServer" -Type "String" -ExpectedValue $AlternateWitnessServer -ActualValue $dag.AlternateWitnessServer -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagAutoRedistributeEnabled" -Type "Boolean" -ExpectedValue $AutoDagAutoRedistributeEnabled -ActualValue $dag.AutoDagAutoRedistributeEnabled -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagAutoReseedEnabled" -Type "Boolean" -ExpectedValue $AutoDagAutoReseedEnabled -ActualValue $dag.AutoDagAutoReseedEnabled -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagDatabaseCopiesPerDatabase" -Type "Int" -ExpectedValue $AutoDagDatabaseCopiesPerDatabase -ActualValue $dag.AutoDagDatabaseCopiesPerDatabase -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagDatabaseCopiesPerVolume" -Type "Int" -ExpectedValue $AutoDagDatabaseCopiesPerVolume -ActualValue $dag.AutoDagDatabaseCopiesPerVolume -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagDatabasesRootFolderPath" -Type "String" -ExpectedValue $AutoDagDatabasesRootFolderPath -ActualValue $dag.AutoDagDatabasesRootFolderPath -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagDiskReclaimerEnabled" -Type "Boolean" -ExpectedValue $AutoDagDiskReclaimerEnabled -ActualValue $dag.AutoDagDiskReclaimerEnabled -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagTotalNumberOfDatabases" -Type "Int" -ExpectedValue $AutoDagTotalNumberOfDatabases -ActualValue $dag.AutoDagTotalNumberOfDatabases -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagTotalNumberOfServers" -Type "Int" -ExpectedValue $AutoDagTotalNumberOfServers -ActualValue $dag.AutoDagTotalNumberOfServers -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "AutoDagVolumesRootFolderPath" -Type "String" -ExpectedValue $AutoDagVolumesRootFolderPath -ActualValue $dag.AutoDagVolumesRootFolderPath -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "DatabaseAvailabilityGroupIpAddresses" -Type "Array" -ExpectedValue $DatabaseAvailabilityGroupIpAddresses -ActualValue $dag.DatabaseAvailabilityGroupIpAddresses -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "FileSystem" -Type "String" -ExpectedValue $FileSystem -ActualValue $dag.FileSystem -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "ManualDagNetworkConfiguration" -Type "Boolean" -ExpectedValue $ManualDagNetworkConfiguration -ActualValue $dag.ManualDagNetworkConfiguration -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "NetworkCompression" -Type "String" -ExpectedValue $NetworkCompression -ActualValue $dag.NetworkCompression -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "NetworkEncryption" -Type "String" -ExpectedValue $NetworkEncryption -ActualValue $dag.NetworkEncryption -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "NetworkEncryption" -Type "String" -ExpectedValue $NetworkEncryption -ActualValue $dag.NetworkEncryption -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "PreferenceMoveFrequency" -Type "Timespan" -ExpectedValue $PreferenceMoveFrequency -ActualValue $dag.PreferenceMoveFrequency -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        #Replication port only comes back correctly from Get-DatabaseAvailabilityGroup if it has been set when there is 1 or more servers in the DAG
        if ($dag.Servers.Count -gt 0)
        {
            if (!(VerifySetting -Name "ReplicationPort" -Type "Int" -ExpectedValue $ReplicationPort -ActualValue $dag.ReplicationPort -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
            {
                $testResults = $false
            }
        }

        if (!(VerifySetting -Name "WitnessDirectory" -Type "String" -ExpectedValue $WitnessDirectory -ActualValue $dag.WitnessDirectory -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        if (!(VerifySetting -Name "WitnessServer" -Type "String" -ExpectedValue $WitnessServer -ActualValue $dag.WitnessServer -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
        {
            $testResults = $false
        }

        #Verify these props only if all members are in the DAG
        if ($dag.Servers.Count -ge $AutoDagTotalNumberOfServers)
        {
            if (!(VerifySetting -Name "DatacenterActivationMode" -Type "String" -ExpectedValue $DatacenterActivationMode -ActualValue $dag.DatacenterActivationMode -PSBoundParametersIn $PSBoundParameters -Verbose:$VerbosePreference))
            {
                $testResults = $false
            }
        }
    }

    return $testResults
}

#Runs Get-DatabaseAvailabilityGroup, only specifying Identity, ErrorAction, and optionally DomainController
function GetDatabaseAvailabilityGroup
{
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Name,

        [Parameter(Mandatory = $true)]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.Credential()]
        $Credential,

        [Parameter(Mandatory = $true)]
        [System.Int32]
        $AutoDagTotalNumberOfServers,

        [Parameter()]
        [System.String]
        $AlternateWitnessDirectory,

        [Parameter()]
        [System.String]
        $AlternateWitnessServer,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoRedistributeEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoDagAutoReseedEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerDatabase,

        [Parameter()]
        [System.Int32]
        $AutoDagDatabaseCopiesPerVolume,

        [Parameter()]
        [System.String]
        $AutoDagDatabasesRootFolderPath,

        [Parameter()]
        [System.Boolean]
        $AutoDagDiskReclaimerEnabled,

        [Parameter()]
        [System.Int32]
        $AutoDagTotalNumberOfDatabases,

        [Parameter()]
        [System.String]
        $AutoDagVolumesRootFolderPath,

        [Parameter()]
        [System.String[]]
        $DatabaseAvailabilityGroupIpAddresses,

        [Parameter()]
        [ValidateSet('Off','DagOnly')]
        [System.String]
        $DatacenterActivationMode,

        [Parameter()]
        [System.String]
        $DomainController,

        [Parameter()]
        [ValidateSet('NTFS','ReFS')]
        [System.String]
        $FileSystem,

        [Parameter()]
        [System.Boolean]
        $ManualDagNetworkConfiguration,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkCompression,

        [Parameter()]
        [ValidateSet('Disabled','Enabled','InterSubnetOnly','SeedOnly')]
        [System.String]
        $NetworkEncryption,

        [Parameter()]
        [System.String]
        $PreferenceMoveFrequency,

        [Parameter()]
        [System.Boolean]
        $ReplayLagManagerEnabled,

        [Parameter()]
        [System.UInt16]
        $ReplicationPort,

        [Parameter()]
        [System.Boolean]
        $SkipDagValidation,

        [Parameter()]
        [System.String]
        $WitnessDirectory,

        [Parameter()]
        [System.String]
        $WitnessServer
    )

    AddParameters -PSBoundParametersIn $PSBoundParameters -ParamsToAdd @{
        'Identity' = $PSBoundParameters['Name']
        'ErrorAction' = 'SilentlyContinue'
    }
    RemoveParameters -PSBoundParametersIn $PSBoundParameters -ParamsToKeep 'Identity','ErrorAction','DomainController'

    return (Get-DatabaseAvailabilityGroup @PSBoundParameters -Status)
}

Export-ModuleMember -Function *-TargetResource