functions/entitlementManagement/accessPackageAssignmentPolicies/Invoke-TmfAccessPackageAssignmentPolicy.ps1

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

    [CmdletBinding()]
    Param (
        [string[]] $SpecificResources,
        [string[]] $SourceFile,
        [string[]] $SourceConfig,
        [System.Management.Automation.PSCmdlet]
        $Cmdlet = $PSCmdlet
    )
    
    begin
    {
        $resourceName = "accessPackageAssignmentPolicies"
        if (!$script:desiredConfiguration[$resourceName]) {
            Stop-PSFFunction -String "TMF.NoDefinitions" -StringValues "AccessPackageAssignmentPolicies"
            return
        }
        Test-GraphConnection -Cmdlet $Cmdlet

        if (($SpecificResources -and $SourceFile -and $SourceConfig) -or ($SpecificResources -and $SourceFile) -or ($SourceFile -and $SourceConfig)) {
            $exception = New-Object System.Data.DataException("Multiple filters are not supported. You can only filter by one type, sourceFile or sourceConfig or specificResources!")
            $errorID = "MultipleFiltersNotSupported"
            $category = [System.Management.Automation.ErrorCategory]::NotSpecified
            $recordObject = New-Object System.Management.Automation.ErrorRecord($exception, $errorID, $category, $Cmdlet)
            $cmdlet.ThrowTerminatingError($recordObject)
        }

        function ConvertTo-RequestBody {
            Param (
                $TestResult                
            )

            $requestBody = @{                        
                "displayName" = $TestResult.DesiredConfiguration.displayName
                "description" = $TestResult.DesiredConfiguration.description
                "allowedTargetScope" = $TestResult.DesiredConfiguration.allowedTargetScope
                "accessPackage" = @{
                    "id" = $TestResult.DesiredConfiguration.accessPackageId()
                }
            }

            foreach ($property in @("expiration","reviewSettings", "requestorSettings", "requestApprovalSettings", "specificAllowedTargets", "automaticRequestSettings")) {
                switch ($property) {
                    "specificAllowedTargets" {
                        if (($Testresult.DesiredConfiguration | Get-Member).name -contains $property) {
                            $requestBody[$property] = @($TestResult.DesiredConfiguration.$property | Foreach-Object { $_.prepareBody()    })
                        }                        
                    }
                    "requestApprovalSettings" {
                        if ((Get-Member -InputObject $TestResult.DesiredConfiguration).Name -contains $property) {
                            $requestBody[$property] = $TestResult.DesiredConfiguration.$property.PSObject.Copy()
                            if ($requestBody[$property]["stages"]) {
                                $requestBody[$property]["stages"] = @($requestBody[$property]["stages"].PSObject.Copy() | Foreach-Object {                            
                                    $stage = $_
                                    "primaryApprovers", "escalationApprovers", "fallbackPrimaryApprovers", "fallbackEscalationApprovers" | Where-Object { $_ -in $requestBody[$property]["stages"].Keys } | Foreach-Object {                                
                                        $stage[$_] = @($stage[$_] | Foreach-Object { $_.prepareBody() })
                                    }
                                    $stage
                                })
                            }
                        }
                    }
                    "reviewSettings" {
                        if ((Get-Member -InputObject $TestResult.DesiredConfiguration).Name -contains $property) {
                            $requestBody[$property] = $TestResult.DesiredConfiguration.$property.PSObject.Copy()
                            if ($TestResult.DesiredConfiguration.$property.primaryReviewers) {
                                $requestBody[$property]["primaryReviewers"] = @($TestResult.DesiredConfiguration.$property.primaryReviewers | Foreach-Object {
                                    $_.prepareBody()
                                })
                            }
                            if ($TestResult.DesiredConfiguration.$property.fallbackReviewers) {
                                $requestBody[$property]["fallbackReviewers"] = @($TestResult.DesiredConfiguration.$property.fallbackReviewers | Foreach-Object {
                                    $_.prepareBody()
                                })
                            }
                        }
                    }
                    "requestorSettings" {
                        if ((Get-Member -InputObject $TestResult.DesiredConfiguration).Name -contains $property) {
                            $requestBody[$property] = $TestResult.DesiredConfiguration.$property.PSObject.Copy()
                            if ($TestResult.DesiredConfiguration.$property.onBehalfRequestors) {
                                $requestBody[$property]["onBehalfRequestors"] = @($TestResult.DesiredConfiguration.$property.onBehalfRequestors | ForEach-Object {
                                    $_.prepareBody()
                                })
                            }
                        }
                    }
                    default {
                        if ((Get-Member -InputObject $TestResult.DesiredConfiguration).Name -contains $property) {
                            $requestBody[$property] = $TestResult.DesiredConfiguration.$property.PSObject.Copy()
                        }                        
                    }
                }
            }

            return $requestBody
        }
    }
    process
    {
        if (Test-PSFFunctionInterrupt) { return }

        if ($SpecificResources) {
            $testResults = Test-TmfAccessPackageAssignmentPolicy -SpecificResources $SpecificResources -RawOutput -Cmdlet $Cmdlet
        }
        elseif ($SourceFile) {
            $testResults = Test-TmfAccessPackageAssignmentPolicy -SourceFile $SourceFile -RawOutput -Cmdlet $Cmdlet
        }
        elseif ($SourceConfig) {
            $testResults = Test-TmfAccessPackageAssignmentPolicy -SourceConfig $SourceConfig -RawOutput -Cmdlet $Cmdlet
        }
        else {
            $testResults = Test-TmfAccessPackageAssignmentPolicy -RawOutput -Cmdlet $Cmdlet
        }        

        foreach ($result in $testResults) {
            Beautify-TmfTestResult -TestResult $result -FunctionName $MyInvocation.MyCommand
            switch ($result.ActionType) {
                "Create" {
                    $requestUrl = "$script:graphBaseUrl1/identityGovernance/entitlementManagement/assignmentPolicies"
                    $requestMethod = "POST"
                    $requestBody = ConvertTo-RequestBody -TestResult $result                    

                    try {
                        $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:graphBaseUrl1/identityGovernance/entitlementManagement/assignmentPolicies/{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:graphBaseUrl1/identityGovernance/entitlementManagement/assignmentPolicies/{0}" -f $result.GraphResource.Id
                    $requestMethod = "PUT"
                    if ($result.Changes.count -gt 0) {
                        $requestBody = ConvertTo-RequestBody -TestResult $result
                        
                        try {
                            $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 $_
                        }
                    }
                }
                "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
    }
}