DSCResources/MSFT_TeamsMessagingConfiguration/MSFT_TeamsMessagingConfiguration.psm1

function Get-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.Collections.Hashtable])]
    param
    (
        [Parameter()]
        [System.Boolean]
        $EnableVideoMessageCaptions,

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

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

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $Storyline,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $MessagingNotes,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $FileTypeCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $UrlReputationCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $ContentBasedPhishingCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $ReportIncorrectSecurityDetections,

        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [System.String]
        $IsSingleInstance,

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

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

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

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

    $null = New-M365DSCConnection -Workload 'MicrosoftTeams' `
        -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

    $nullResult = @{}
    try
    {
        $instance = Get-CsTeamsMessagingConfiguration -Identity 'Global'

        Write-Verbose -Message "A Teams Messaging Configuration with Identity {Global} was found"
        $results = @{
            ContentBasedPhishingCheck         = $instance.ContentBasedPhishingCheck
            CustomEmojis                      = $instance.CustomEmojis
            EnableInOrganizationChatControl   = $instance.EnableInOrganizationChatControl
            EnableVideoMessageCaptions        = $instance.EnableVideoMessageCaptions
            FileTypeCheck                     = $instance.FileTypeCheck
            MessagingNotes                    = $instance.MessagingNotes
            ReportIncorrectSecurityDetections = $instance.ReportIncorrectSecurityDetections
            Storyline                         = $instance.Storyline
            UrlReputationCheck                = $instance.UrlReputationCheck
            IsSingleInstance                  = 'Yes'
            Credential                        = $Credential
            ApplicationId                     = $ApplicationId
            TenantId                          = $TenantId
            CertificateThumbprint             = $CertificateThumbprint
        }
        return $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()]
        [System.Boolean]
        $EnableVideoMessageCaptions,

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

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

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $Storyline,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $MessagingNotes,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $FileTypeCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $UrlReputationCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $ContentBasedPhishingCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $ReportIncorrectSecurityDetections,

        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [System.String]
        $IsSingleInstance,

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

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

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

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

    $null = New-M365DSCConnection -Workload 'MicrosoftTeams' `
        -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

    $updateParameters = Remove-M365DSCAuthenticationParameter -BoundParameters $PSBoundParameters
    $updateParameters.Remove('IsSingleInstance') | Out-Null
    Write-Verbose -Message "Updating the Teams Messaging Configuration with Identity {Global}"

    Set-CsTeamsMessagingConfiguration @updateParameters -Identity 'Global' | Out-Null
}

function Test-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    param
    (
        [Parameter()]
        [System.Boolean]
        $EnableVideoMessageCaptions,

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

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

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $Storyline,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $MessagingNotes,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $FileTypeCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $UrlReputationCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $ContentBasedPhishingCheck,

        [Parameter()]
        [ValidateSet('Disabled', 'Enabled')]
        [System.String]
        $ReportIncorrectSecurityDetections,

        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [System.String]
        $IsSingleInstance,

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

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

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

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

    #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

    $result = Test-M365DSCTargetResource -DesiredValues $PSBoundParameters `
                                         -ResourceName $($MyInvocation.MyCommand.Source).Replace('MSFT_', '')
    return $result
}

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
    )

   $ConnectionMode = New-M365DSCConnection -Workload 'MicrosoftTeams' `
        -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
    {
        [array]$getValue = Get-CsTeamsMessagingConfiguration -ErrorAction Stop

        $i = 1
        $dscContent = ''
        if ($getValue.Length -eq 0)
        {
            Write-M365DSCHost -Message $Global:M365DSCEmojiGreenCheckMark
        }
        else
        {
            Write-M365DSCHost -Message "`r`n" -DeferWrite
        }
        foreach ($config in $getValue)
        {
            if ($null -ne $Global:M365DSCExportResourceInstancesCount)
            {
                $Global:M365DSCExportResourceInstancesCount++
            }

            $displayedKey = $config.Identity
            if (-not [String]::IsNullOrEmpty($config.displayName))
            {
                $displayedKey = $config.displayName
            }
            Write-M365DSCHost -Message " |---[$i/$($getValue.Count)] $displayedKey" -DeferWrite
            $params = @{
                IsSingleInstance = 'Yes'
                Credential = $Credential
                ApplicationId = $ApplicationId
                TenantId = $TenantId
                CertificateThumbprint = $CertificateThumbprint
            }

            $Results = Get-TargetResource @Params
            $currentDSCBlock = Get-M365DSCExportContentForResource -ResourceName $ResourceName `
                -ConnectionMode $ConnectionMode `
                -ModulePath $PSScriptRoot `
                -Results $Results `
                -Credential $Credential
            $dscContent += $currentDSCBlock
            Save-M365DSCPartialExport -Content $currentDSCBlock `
                -FileName $Global:PartialExportFileName
            $i++
            Write-M365DSCHost -Message $Global:M365DSCEmojiGreenCheckMark -CommitWrite
        }
        return $dscContent
    }
    catch
    {
        Write-M365DSCHost -Message $Global:M365DSCEmojiRedX -CommitWrite

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

        return ''
    }
}

Export-ModuleMember -Function *-TargetResource