public/Workspace/Remove-FabricWorkspaceIdentity.ps1

<#
.SYNOPSIS
Deprovisions the Managed Identity for a specified Fabric workspace.
 
.DESCRIPTION
The `Remove-FabricWorkspaceCapacity` function deprovisions the Managed Identity from the given workspace by calling the appropriate API endpoint.
 
.PARAMETER WorkspaceId
The unique identifier of the workspace from which the identity will be removed.
 
.EXAMPLE
Remove-FabricWorkspaceCapacity -WorkspaceId "workspace123"
 
Deprovisions the Managed Identity for the workspace with ID "workspace123".
 
.NOTES
- Requires `$FabricConfig` global configuration, including `BaseUrl` and `FabricHeaders`.
- Calls `Test-TokenExpired` to ensure token validity before making the API request.
 
Author: Tiago Balabuch
#>


function Remove-FabricWorkspaceIdentity {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [ValidateNotNullOrEmpty()]
        [string]$WorkspaceId
    )

    try {
        # Step 1: Ensure token validity
        Write-Message -Message "Validating token..." -Level Debug
        Test-TokenExpired
        Write-Message -Message "Token validation completed." -Level Debug

        # Step 2: Construct the API URL
        $apiEndpointUrl = "{0}/workspaces/{1}/deprovisionIdentity" -f $FabricConfig.BaseUrl, $WorkspaceId
        Write-Message -Message "API Endpoint: $apiEndpointUrl" -Level Debug

        # Step 3: Make the API request
       $response = Invoke-RestMethod `
            -Headers $FabricConfig.FabricHeaders `
            -Uri $apiEndpointUrl `
            -Method Post `
            -ContentType "application/json" `
            -ErrorAction Stop `
            -SkipHttpErrorCheck `
            -ResponseHeadersVariable "responseHeader" `
            -StatusCodeVariable "statusCode"

        # Step 4: Handle and log the response
        switch ($statusCode) {
            200 {
                Write-Message -Message "Workspace identity was successfully deprovisioned for workspace '$WorkspaceId'." -Level Info
                return $response.value
            }
            202 {
                Write-Message -Message "Workspace identity deprovisioning accepted for workspace '$WorkspaceId'. Deprovisioning in progress!" -Level Info
                [string]$operationId = $responseHeader["x-ms-operation-id"]
                Write-Message -Message "Operation ID: '$operationId'" -Level Debug
                Write-Message -Message "Getting Long Running Operation status" -Level Debug
               
                $operationStatus = Get-FabricLongRunningOperation -operationId $operationId
                Write-Message -Message "Long Running Operation status: $operationStatus" -Level Debug
                # Handle operation result
                if ($operationStatus.status -eq "Succeeded") {
                    Write-Message -Message "Operation Succeeded" -Level Debug
                    Write-Message -Message "Getting Long Running Operation result" -Level Debug
                
                    $operationResult = Get-FabricLongRunningOperationResult -operationId $operationId
                    Write-Message -Message "Long Running Operation status: $operationResult" -Level Debug
                
                    return $operationResult
                }
                else {
                    Write-Message -Message "Operation failed. Status: $($operationStatus)" -Level Debug
                    Write-Message -Message "Operation failed. Status: $($operationStatus)" -Level Error
                    return $operationStatus
                }  
            }
            default {
                Write-Message -Message "Unexpected response code: $statusCode" -Level Error
                Write-Message -Message "Error details: $($response.message)" -Level Error
                throw "API request failed with status code $statusCode."
            }
        }
    }
    catch {
        # Step 5: Handle and log errors
        $errorDetails = $_.Exception.Message
        Write-Message -Message "Failed to deprovision workspace identity. Error: $errorDetails" -Level Error
    }
}