class ServiceConnection {
    [string] $Id = ""
    [string] $Name = ""
    [string] $OperationStatus = ""
    [string] $AuthorizationScheme = ""
    [string] $ServicePrincipalApplicationId = ""
    [string] $ServicePrincipalObjectId = ""
    [string] $ServicePrincipalName = ""
    [string] $ServicePrincipalEndDateTime = ""
}

[string] $date = Get-Date -Format "yyyy-MM-dd HHmm"
$fileName =  ".\$date serviceconnections.csv" 

Write-Host "========================================================================================================================================================================"
Write-Host "Creating service connection overview."
Write-Host "========================================================================================================================================================================"

$token = "adlgsqh2uoedv6rf44hjd47z3ssuo5zonrqicif4ctjqlqqtlhdq"
$token = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes(":$($token)"))
$organization = "effectory"
$project = "Survey%20Software"

$url="https://dev.azure.com/$organization/$project/_apis/serviceendpoint/endpoints?api-version=6.0-preview.4"
$head = @{ Authorization =" Basic $token" }
$response = Invoke-RestMethod -Uri $url -Method GET -Headers $head

[ServiceConnection[]]$Result = @()
$response.value | ForEach-Object {
            [ServiceConnection] $serviceConnection = [ServiceConnection]::new()
            $serviceConnection.Id = $_.id
            $serviceConnection.Name = $_.name
            $serviceConnection.OperationStatus = $_.operationStatus
            $serviceConnection.AuthorizationScheme = $_.authorization.scheme

            $principalid = $_.authorization.parameters.serviceprincipalid
            if ($null -ne $principalid) {                    
                    $principal = Get-AzADServicePrincipal -ApplicationId $principalid
                    $credential = Get-AzADAppCredential -ApplicationId $principalid

                    $serviceConnection.ServicePrincipalApplicationId = $principalid
                    $serviceConnection.ServicePrincipalObjectId = $principal.Id
                    $serviceConnection.ServicePrincipalName = $principal.DisplayName
                    $serviceConnection.ServicePrincipalEndDateTime = $credential.EndDateTime
            }
            $Result += $serviceConnection
        }

$Result | Export-Csv -Path $fileName -Append -NoTypeInformation

Write-Host "========================================================================================================================================================================"
Write-Host "Done."