functions/agreements/Test-TmfAgreement.ps1

function Test-TmfAgreement
{
    <#
        .SYNOPSIS
            Test desired configuration against a Tenant.
        .DESCRIPTION
            Compare current configuration of a resource type with the desired configuration.
            Return a result object with the required changes and actions.
    #>

    [CmdletBinding()]
    Param (
        [System.Management.Automation.PSCmdlet]
        $Cmdlet = $PSCmdlet
    )
    
    begin
    {
        Test-GraphConnection -Cmdlet $Cmdlet
        $resourceName = "agreements"
        $tenant = Get-MgOrganization -Property displayName, Id        
    }
    process
    {
        foreach ($definition in $script:desiredConfiguration[$resourceName]) {
            foreach ($property in $definition.Properties()) {
                if ($definition.$property.GetType().Name -eq "String") {
                    $definition.$property = Resolve-String -Text $definition.$property
                }
            }

            $result = @{
                Tenant = $tenant.displayName
                TenantId = $tenant.Id
                ResourceType = 'Agreement'
                ResourceName = (Resolve-String -Text $definition.displayName)
                DesiredConfiguration = $definition
            }

            $resource = (Invoke-MgGraphRequest -Method GET -Uri ("$script:graphBaseUrl/identityGovernance/termsOfUse/agreements/?`$filter=displayName eq '{0}'" -f [System.Web.HttpUtility]::UrlEncode($definition.displayName))).Value
            switch ($resource.Count) {
                0 {
                    if ($definition.present) {                    
                        $result = New-TestResult @result -ActionType "Create"
                    }
                    else {                    
                        $result = New-TestResult @result -ActionType "NoActionRequired"
                    }
                }
                1 {
                    $result["GraphResource"] = $resource
                    if ($definition.present) {
                        $changes = @()
                        foreach ($property in ($definition.Properties() | Where-Object {$_ -notin "displayName", "present", "sourceConfig"})) {
                            $change = [PSCustomObject] @{
                                Property = $property                                        
                                Actions = $null
                            }
                            switch ($property) {
                                "termsExpiration" {
                                    <# Currently not supported! if (
                                        ((Get-Date $definition.termsExpiration.startDateTime) -ne (Get-Date $resource.termsExpiration.startDateTime)) -or
                                        $definition.termsExpiration.startDateTime -ne $resource.termsExpiration.startDateTime
                                    )
                                    {
                                        $change.Actions = @{"Set" = $definition.$property}
                                    }#>

                                }
                                "files" { <# Currently not supported! #> }
                                default {
                                    if ($definition.$property -ne $resource.$property) {
                                        $change.Actions = @{"Set" = $definition.$property}
                                    }
                                }
                            }
                            if ($change.Actions) {$changes += $change}
                        }
    
                        if ($changes.count -gt 0) { $result = New-TestResult @result -Changes $changes -ActionType "Update"}
                        else { $result = New-TestResult @result -ActionType "NoActionRequired" }
                    }
                    else {
                        $result = New-TestResult @result -ActionType "Delete"
                    }
                }
                default {
                    Write-PSFMessage -Level Warning -String 'TMF.Test.MultipleResourcesError' -StringValues $resourceName, $definition.displayName -Tag 'failed'
                    $exception = New-Object System.Data.DataException("Query returned multiple results. Cannot decide which resource to test.")
                    $errorID = 'MultipleResourcesError'
                    $category = [System.Management.Automation.ErrorCategory]::NotSpecified
                    $recordObject = New-Object System.Management.Automation.ErrorRecord($exception, $errorID, $category, $Cmdlet)
                    $cmdlet.ThrowTerminatingError($recordObject)
                }
            }
            
            $result
        }
    }
}