functions/conditionalAccessPolicies/Invoke-TmfConditionalAccessPolicy.ps1

function Invoke-TmfConditionalAccessPolicy
{
    <#
        .SYNOPSIS
            Performs the required actions for a resource type against the connected Tenant.
    #>

    [CmdletBinding()]
    Param (
        [string[]] $SpecificResources,
        [System.Management.Automation.PSCmdlet]
        $Cmdlet = $PSCmdlet
    )
    
    begin
    {
        $resourceName = "conditionalAccessPolicies"
        if (!$script:desiredConfiguration[$resourceName]) {
            Stop-PSFFunction -String "TMF.NoDefinitions" -StringValues "ConditionalAccessPolicy"
            return
        }
        Test-GraphConnection -Cmdlet $Cmdlet
    }
    process
    {
        if (Test-PSFFunctionInterrupt) { return }
        if ($SpecificResources) {
            $testResults = Test-TmfConditionalAccessPolicy -SpecificResources $SpecificResources -Cmdlet $Cmdlet
        }
        else {
            $testResults = Test-TmfConditionalAccessPolicy -Cmdlet $Cmdlet
        }

        foreach ($result in $testResults) {
            Beautify-TmfTestResult -TestResult $result -FunctionName $MyInvocation.MyCommand
            switch ($result.ActionType) {
                "Create" {
                    $requestUrl = "$script:graphBaseUrl/identity/conditionalAccess/policies"
                    $requestMethod = "POST"
                    $requestBody = @{                        
                        "displayName" = $result.DesiredConfiguration.displayName
                        "state" = $result.DesiredConfiguration.state
                    }
                    try {                        
                        foreach ($property in ($result.DesiredConfiguration.Properties() | Where-Object {$_ -notin @("displayName", "state", "present", "sourceConfig")})) {
                            $requestBody[$property] = $result.DesiredConfiguration.$property
                        }
                        
                        $requestBody = $requestBody | ConvertTo-Json -ErrorAction Stop -Depth 8
                        Write-PSFMessage -Level Verbose -String "TMF.Invoke.SendingRequestWithBody" -StringValues $requestMethod, $requestUrl, $requestBody
                        Invoke-MgGraphRequest -Method $requestMethod -Uri $requestUrl -Body $requestBody | Out-Null
                    }
                    catch {
                        Write-PSFMessage -Level Error -String "TMF.Invoke.ActionFailed" -StringValues $result.Tenant, $result.ResourceType, $result.ResourceName, $result.ActionType
                        throw $_
                    }
                }
                "Delete" {
                    $requestUrl = "$script:graphBaseUrl/identity/conditionalAccess/policies/{0}" -f $result.GraphResource.Id
                    $requestMethod = "DELETE"
                    try {
                        Write-PSFMessage -Level Verbose -String "TMF.Invoke.SendingRequest" -StringValues $requestMethod, $requestUrl
                        Invoke-MgGraphRequest -Method $requestMethod -Uri $requestUrl
                    }
                    catch {
                        Write-PSFMessage -Level Error -String "TMF.Invoke.ActionFailed" -StringValues $result.Tenant, $result.ResourceType, $result.ResourceName, $result.ActionType
                        throw $_
                    }
                }
                "Update" {                    
                    $requestUrl = "$script:graphBaseUrl/identity/conditionalAccess/policies/{0}" -f $result.GraphResource.Id
                    $requestMethod = "PATCH"
                    $requestBody = @{}
                    try {
                        foreach ($change in $result.Changes) {
                            foreach ($action in $change.Actions.Keys) {
                                switch ($action) {
                                    "Set" {                                        
                                        $requestBody[$change.property] = $change.Actions[$action]
                                    }                                    
                                }
                            }
                        }

                        if ($requestBody.Keys -gt 0) {
                            $requestBody = $requestBody | ConvertTo-Json -ErrorAction Stop -Depth 8
                            Write-PSFMessage -Level Verbose -String "TMF.Invoke.SendingRequestWithBody" -StringValues $requestMethod, $requestUrl, $requestBody
                            Invoke-MgGraphRequest -Method $requestMethod -Uri $requestUrl -Body $requestBody
                        }
                    }
                    catch {
                        Write-PSFMessage -Level Error -String "TMF.Invoke.ActionFailed" -StringValues $result.Tenant, $result.ResourceType, $result.ResourceName, $result.ActionType
                        throw $_
                    }
                }
                "NoActionRequired" { }
                default {
                    Write-PSFMessage -Level Warning -String "TMF.Invoke.ActionTypeUnknown" -StringValues $result.ActionType
                }                
            }
            Write-PSFMessage -Level Host -String "TMF.Invoke.ActionCompleted" -StringValues $result.Tenant, $result.ResourceType, $result.ResourceName, (Get-ActionColor -Action $result.ActionType), $result.ActionType
        }        
    }
    end
    {
        Load-TmfConfiguration -Cmdlet $Cmdlet
    }
}