DSCResources/MSFT_TeamsMeetingPolicy/MSFT_TeamsMeetingPolicy.psm1

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

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

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

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

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

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

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

        [Parameter()]
        [System.String]
        [ValidateSet('EveryoneInCompany', 'Everyone', 'EveryoneInSameAndFederatedCompany')]
        $AutoAdmittedUsers,

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.UInt32]
        $MediaBitRateKb,

        [Parameter()]
        [System.String]
        [ValidateSet('SingleApplication', 'EntireScreen', 'Disabled')]
        $ScreenSharingMode,

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

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

    Write-Verbose -Message "Getting the Teams Meeting Policy $($Identity)"

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace("MSFT_", "")
    $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new()
    $data.Add("Resource", $ResourceName)
    $data.Add("Method", $MyInvocation.MyCommand)
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $ConnectionMode = New-M365DSCConnection -Platform 'SkypeForBusiness' `
        -InboundParameters $PSBoundParameters

    $policy = Get-CsTeamsMeetingPolicy -Identity $Identity -ErrorAction 'SilentlyContinue'

    if ($null -eq $policy)
    {
        Write-Verbose -Message "Could not find Teams Meeting Policy ${$Identity}"
        return @{
            Identity           = $Identity
            Ensure             = 'Absent'
            GlobalAdminAccount = $GlobalAdminAccount
        }
    }
    Write-Verbose -Message "Found Teams Meeting Policy {$Identity}"
    return @{
        Identity                                   = $Identity
        Description                                = $policy.Description
        AllowChannelMeetingScheduling              = $policy.AllowChannelMeetingScheduling
        AllowMeetNow                               = $policy.AllowMeetNow
        AllowIPVideo                               = $policy.AllowIPVideo
        AllowAnonymousUsersToStartMeeting          = $policy.AllowAnonymousUsersToStartMeeting
        AllowPrivateMeetingScheduling              = $policy.AllowPrivateMeetingScheduling
        AutoAdmittedUsers                          = $policy.AutoAdmittedUsers
        AllowCloudRecording                        = $policy.AllowCloudRecording
        AllowOutlookAddIn                          = $policy.AllowOutlookAddIn
        AllowPowerPointSharing                     = $policy.AllowPowerPointSharing
        AllowParticipantGiveRequestControl         = $policy.AllowParticipantGiveRequestControl
        AllowExternalParticipantGiveRequestControl = $policy.AllowExternalParticipantGiveRequestControl
        AllowSharedNotes                           = $policy.AllowSharedNotes
        AllowWhiteboard                            = $policy.AllowWhiteboard
        AllowTranscription                         = $policy.AllowTranscription
        MediaBitRateKb                             = $policy.MediaBitRateKb
        ScreenSharingMode                          = $policy.ScreenSharingMode
        Ensure                                     = "Present"
        GlobalAdminAccount                         = $GlobalAdminAccount
    }
}

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

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

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

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

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

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

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

        [Parameter()]
        [System.String]
        [ValidateSet('EveryoneInCompany', 'Everyone', 'EveryoneInSameAndFederatedCompany')]
        $AutoAdmittedUsers,

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.UInt32]
        $MediaBitRateKb,

        [Parameter()]
        [System.String]
        [ValidateSet('SingleApplication', 'EntireScreen', 'Disabled')]
        $ScreenSharingMode,

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

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

    Write-Verbose -Message "Setting Teams Meeting Policy"

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace("MSFT_", "")
    $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new()
    $data.Add("Resource", $ResourceName)
    $data.Add("Method", $MyInvocation.MyCommand)
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $ConnectionMode = New-M365DSCConnection -Platform 'SkypeForBusiness' `
        -InboundParameters $PSBoundParameters

    $CurrentValues = Get-TargetResource @PSBoundParameters

    $SetParameters = $PSBoundParameters
    $SetParameters.Remove("Ensure") | Out-Null
    $SetParameters.Remove("GlobalAdminAccount") | Out-Null

    if ($Ensure -eq 'Present' -and $CurrentValues.Ensure -eq 'Absent')
    {
        Write-Verbose -Message "Creating a new Teams Meeting Policy {$Identity}"
        New-CsTeamsMeetingPolicy @SetParameters
    }
    elseif ($Ensure -eq 'Present' -and $CurrentValues.Ensure -eq 'Present')
    {
        # If we get here, it's because the Test-TargetResource detected a drift, therefore we always call
        # into the Set-CsTeamsMeetingPolicy cmdlet.
        Write-Verbose -Message "Updating settings for Teams Meeting Policy {$Identity}"
        Set-CsTeamsMeetingPolicy @SetParameters
    }
    elseif ($Ensure -eq 'Absent' -and $CurrentValues.Ensure -eq 'Present')
    {
        Write-Verbose -Message "Removing existing Teams Meeting Policy {$Identity}"
        Remove-CsTeamsMeetingPolicy -Identity $Identity -Confirm:$false
    }
}

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

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

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

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

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

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

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

        [Parameter()]
        [System.String]
        [ValidateSet('EveryoneInCompany', 'Everyone', 'EveryoneInSameAndFederatedCompany')]
        $AutoAdmittedUsers,

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.UInt32]
        $MediaBitRateKb,

        [Parameter()]
        [System.String]
        [ValidateSet('SingleApplication', 'EntireScreen', 'Disabled')]
        $ScreenSharingMode,

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

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

    Write-Verbose -Message "Testing configuration of Team Meeting Policy {$Identity}"

    $CurrentValues = Get-TargetResource @PSBoundParameters

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

    $ValuesToCheck = $PSBoundParameters
    $ValuesToCheck.Remove('GlobalAdminAccount') | Out-Null

    $TestResult = Test-Microsoft365DSCParameterState -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(Mandatory = $true)]
        [System.Management.Automation.PSCredential]
        $GlobalAdminAccount
    )
    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace("MSFT_", "")
    $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new()
    $data.Add("Resource", $ResourceName)
    $data.Add("Method", $MyInvocation.MyCommand)
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $ConnectionMode = New-M365DSCConnection -Platform 'SkypeForBusiness' `
        -InboundParameters $PSBoundParameters

    $i = 1
    [array]$policies = Get-CsTeamsMeetingPolicy
    $content = ''
    Write-Host "`r`n" -NoNewLine
    foreach ($policy in $policies)
    {
        Write-Host " |---[$i/$($policies.Count)] $($policy.Identity)" -NoNewLine
        $params = @{
            Identity           = $policy.Identity
            GlobalAdminAccount = $GlobalAdminAccount
        }
        $result = Get-TargetResource @params
        $result.GlobalAdminAccount = Resolve-Credentials -UserName "globaladmin"
        $content += " TeamsMeetingPolicy " + (New-GUID).ToString() + "`r`n"
        $content += " {`r`n"
        $currentDSCBlock = Get-DSCBlock -Params $result -ModulePath $PSScriptRoot
        $content += Convert-DSCStringParamToVariable -DSCBlock $currentDSCBlock -ParameterName "GlobalAdminAccount"
        $content += " }`r`n"
        Write-Host $Global:M365DSCEmojiGreenCheckmark
        $i++
    }
    return $content
}

Export-ModuleMember -Function *-TargetResource