DSCResources/MSFT_EXOSweepRule/MSFT_EXOSweepRule.psm1

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

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [ValidateSet('Present', 'Absent')]
        [System.String]
        $Ensure = 'Present',

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

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

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    New-M365DSCConnection -Workload 'ExchangeOnline' `
        -InboundParameters $PSBoundParameters | Out-Null

    #Ensure the proper dependencies are installed in the current environment.
    Confirm-M365DSCDependencies

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace('MSFT_', '')
    $CommandName = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $nullResult = $PSBoundParameters
    $nullResult.Ensure = 'Absent'
    try
    {
        if ($null -ne $Script:exportedInstances -and $Script:ExportMode)
        {
            $instance = $Script:exportedInstances | Where-Object -FilterScript {$_.Name -eq $Name}
        }
        else
        {
            $instance = Get-SweepRule -Mailbox $Mailbox -ErrorAction Stop
        }
        if ($null -eq $instance)
        {
            return $nullResult
        }

        $results = @{
            Name                  = $instance.Name
            Provider              = $instance.Provider
            DestinationFolder     = $instance.MailboxOwnerId + ":\" + $instance.DestinationFolder
            Enabled               = [Boolean]$instance.Enabled
            KeepForDays           = $instance.KeepForDays
            KeepLatest            = $instance.KeepLatest
            Mailbox               = $instance.MailboxOwnerId
            SenderName            = $instance.Sender.Split('"')[1]
            SourceFolder          = $instance.MailboxOwnerId + ":\" + $instance.SourceFolder
            SystemCategory        = $instance.SystemCategory
            Ensure                = 'Present'
            Credential            = $Credential
            ApplicationId         = $ApplicationId
            TenantId              = $TenantId
            CertificateThumbprint = $CertificateThumbprint
            ManagedIdentity       = $ManagedIdentity.IsPresent
            AccessTokens          = $AccessTokens
        }
        return [System.Collections.Hashtable] $results
    }
    catch
    {
        New-M365DSCLogEntry -Message 'Error retrieving data:' `
            -Exception $_ `
            -Source $($MyInvocation.MyCommand.Source) `
            -TenantId $TenantId `
            -Credential $Credential

        return $nullResult
    }
}

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

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [ValidateSet('Present', 'Absent')]
        [System.String]
        $Ensure = 'Present',

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

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

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    #Ensure the proper dependencies are installed in the current environment.
    Confirm-M365DSCDependencies

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace('MSFT_', '')
    $CommandName = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $currentInstance = Get-TargetResource @PSBoundParameters

    $setParameters = Remove-M365DSCAuthenticationParameter -BoundParameters $PSBoundParameters
    $setParameters.Add('Sender', $setParameters.SenderName)
    $setParameters.Remove('SenderName') | Out-Null
    # CREATE
    if ($Ensure -eq 'Present' -and $currentInstance.Ensure -eq 'Absent')
    {
        Write-Verbose -Message "Creating new Sweep Rule."
        New-SweepRule @SetParameters
    }
    # UPDATE
    elseif ($Ensure -eq 'Present' -and $currentInstance.Ensure -eq 'Present')
    {
        Write-Verbose -Message "Updating existing Sweep Rule."
        $instance = Get-SweepRule -Mailbox $Mailbox | Where-Object -FilterScript {$_.Name -eq $Name}
        $SetParameters.Add('Identity', $instance.RuleId)
        Set-SweepRule @SetParameters
    }
    # REMOVE
    elseif ($Ensure -eq 'Absent' -and $currentInstance.Ensure -eq 'Present')
    {
        Write-Verbose -Message "Removing existing Sweep Rule."
        $instance = Get-SweepRule -Mailbox $Mailbox | Where-Object -FilterScript {$_.Name -eq $Name}
        Remove-SweepRule -Identity $instance.RuleId -Mailbox $Mailbox
    }
}

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

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [ValidateSet('Present', 'Absent')]
        [System.String]
        $Ensure = 'Present',

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

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

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    #Ensure the proper dependencies are installed in the current environment.
    Confirm-M365DSCDependencies

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace('MSFT_', '')
    $CommandName = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $CurrentValues = Get-TargetResource @PSBoundParameters
    $ValuesToCheck = ([Hashtable]$PSBoundParameters).Clone()

    Write-Verbose -Message "Current Values: $(Convert-M365DscHashtableToString -Hashtable $CurrentValues)"
    Write-Verbose -Message "Target Values: $(Convert-M365DscHashtableToString -Hashtable $ValuesToCheck)"

    $testResult = Test-M365DSCParameterState -CurrentValues $CurrentValues `
        -Source $($MyInvocation.MyCommand.Source) `
        -DesiredValues $PSBoundParameters `
        -ValuesToCheck $ValuesToCheck.Keys

    Write-Verbose -Message "Test-TargetResource returned $testResult"

    return $testResult
}

function Export-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.String])]
    param
    (
        [Parameter()]
        [System.Management.Automation.PSCredential]
        $Credential,

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

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

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $ApplicationSecret,

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    $ConnectionMode = New-M365DSCConnection -Workload 'ExchangeOnline' `
        -InboundParameters $PSBoundParameters

    #Ensure the proper dependencies are installed in the current environment.
    Confirm-M365DSCDependencies

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace('MSFT_', '')
    $CommandName = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    try
    {
        $Script:ExportMode = $true
        [array] $Script:exportedInstances = @()
        $mailboxes = Get-Mailbox
        $j = 1
        if ($Script:mailboxes.Length -eq 0)
        {
            Write-Host $Global:M365DSCEmojiGreenCheckMark
        }
        else
        {
            Write-Host "`r`n" -NoNewline
        }
        $dscContent = ''
        foreach ($mailbox in $mailboxes)
        {
            Write-Host " |---[$j/$($mailboxes.Count)] $($mailbox.Name)" -NoNewline
            [Array] $currentInstances = Get-SweepRule -Mailbox $mailbox.Name -ErrorAction Stop
            $Script:exportedInstances += $currentInstances

            $i = 1
            if ($currentInstances.Length -eq 0)
            {
                Write-Host $Global:M365DSCEmojiGreenCheckMark
            }
            else
            {
                Write-Host "`r`n" -NoNewline
            }
            foreach ($config in $currentInstances)
            {
                if ($null -ne $Global:M365DSCExportResourceInstancesCount)
                {
                    $Global:M365DSCExportResourceInstancesCount++
                }
                $displayedKey = $config.Name
                Write-Host " |---[$i/$($currentInstances.Count)] $displayedKey" -NoNewline
                $params = @{
                    Name                  = $config.Name
                    Credential            = $Credential
                    ApplicationId         = $ApplicationId
                    TenantId              = $TenantId
                    CertificateThumbprint = $CertificateThumbprint
                    ManagedIdentity       = $ManagedIdentity.IsPresent
                    AccessTokens          = $AccessTokens
                }

                $Results = Get-TargetResource @Params
                $Results = Update-M365DSCExportAuthenticationResults -ConnectionMode $ConnectionMode `
                    -Results $Results

                $currentDSCBlock = Get-M365DSCExportContentForResource -ResourceName $ResourceName `
                    -ConnectionMode $ConnectionMode `
                    -ModulePath $PSScriptRoot `
                    -Results $Results `
                    -Credential $Credential
                $dscContent += $currentDSCBlock
                Save-M365DSCPartialExport -Content $currentDSCBlock `
                    -FileName $Global:PartialExportFileName
                $i++
                Write-Host $Global:M365DSCEmojiGreenCheckMark
            }
            $j++
        }
        return $dscContent
    }
    catch
    {
        Write-Host $Global:M365DSCEmojiRedX

        New-M365DSCLogEntry -Message 'Error during Export:' `
            -Exception $_ `
            -Source $($MyInvocation.MyCommand.Source) `
            -TenantId $TenantId `
            -Credential $Credential

        return ''
    }
}

Export-ModuleMember -Function *-TargetResource