Private/New-AtwsDefinition.ps1

Function New-AtwsDefinition {
    begin {
        $entityName = '#EntityName'

        # Enable modern -Debug behavior
        if ($PSCmdlet.MyInvocation.BoundParameters['Debug'].IsPresent) {
            $DebugPreference = 'Continue'
        }
        else {
            # Respect configured preference
            $DebugPreference = $Script:Atws.Configuration.DebugPref
        }

        Write-Debug ('{0}: Begin of function' -F $MyInvocation.MyCommand.Name)

        if (!($PSCmdlet.MyInvocation.BoundParameters['Verbose'].IsPresent)) {
            # No local override of central preference. Load central preference
            $VerbosePreference = $Script:Atws.Configuration.VerbosePref
        }

        $processObject = [collections.generic.list[psobject]]::new()
        $result = [collections.generic.list[psobject]]::new()
    }

    process {

        if ($InputObject) {
            Write-Verbose -Message ('{0}: Copy Object mode: Setting ID property to zero' -F $MyInvocation.MyCommand.Name)

            $entityInfo = Get-AtwsFieldInfo -Entity $entityName -EntityInfo

            $CopyNo = 1

            foreach ($object in $InputObject) {
                # Create a new object and copy properties
                $newObject = New-Object -TypeName Autotask.$entityName

                # Copy every non readonly property
                $fieldNames = [collections.generic.list[psobject]]::new()
                $WriteableFields = $entityInfo.WriteableFields
                $RequiredFields = $entityInfo.RequiredFields

                if ($WriteableFields.count -gt 1) { $fieldNames.AddRange($WriteableFields) } else { $fieldNames.Add($WriteableFields) }
                if ($RequiredFields.count -gt 1) { $fieldNames.AddRange($RequiredFields) } else { $fieldNames.Add($RequiredFields) }

                if ($PSBoundParameters.ContainsKey('UserDefinedFields')) {
                    $fieldNames += 'UserDefinedFields'
                }

                foreach ($field in $fieldNames) {
                    $newObject.$field = $object.$field
                }

                if ($newObject -is [Autotask.Ticket] -and $object.id -gt 0) {
                    Write-Verbose -Message ('{0}: Copy Object mode: Object is a Ticket. Title must be modified to avoid duplicate detection.' -F $MyInvocation.MyCommand.Name)
                    $title = '{0} (Copy {1})' -F $newObject.Title, $CopyNo
                    $copyNo++
                    $newObject.Title = $title
                }
                $processObject.Add($newObject)
            }
        }
        else {
            Write-Debug -Message ('{0}: Creating empty [Autotask.{1}]' -F $MyInvocation.MyCommand.Name, $entityName)
            $processObject.add((New-Object -TypeName Autotask.$entityName))
        }

        # Prepare shouldProcess comments
        $caption = $MyInvocation.MyCommand.Name
        $verboseDescription = '{0}: About to create {1} {2}(s). This action cannot be undone.' -F $caption, $processObject.Count, $entityName
        $verboseWarning = '{0}: About to create {1} {2}(s). This action may not be undoable. Do you want to continue?' -F $caption, $processObject.Count, $entityName

        # Lets don't and say we did!
        if ($PSCmdlet.ShouldProcess($verboseDescription, $verboseWarning, $caption)) {

            # Process parameters and update objects with their values
            $processObject = $processObject | Update-AtwsObjectsWithParameters -BoundParameters $PSBoundParameters -EntityName $EntityName

            try {
                # Force list even if result is only 1 object to be compatible with addrange()
                [collections.generic.list[psobject]]$response = Set-AtwsData -Entity $processObject -Create
            }
            catch {
                # Write a debug message with detailed information to developers
                $reason = ("{0}: {1}" -f $_.CategoryInfo.Category, $_.CategoryInfo.Reason)
                $message = "{2}: {0}`r`n`r`nLine:{1}`r`n`r`nScript stacktrace:`r`n{3}" -f $_.Exception.Message, $_.InvocationInfo.Line, $reason, $_.ScriptStackTrace
                Write-Debug $message

                # Pass on the error
                $PSCmdlet.ThrowTerminatingError($_)
                return
            }
            # If using pipeline this block (process) will run once pr item in the pipeline. make sure to return them all
            if ($response.Count -gt 0) {
                $result.AddRange($response)
            }
        }
    }

    end {
        Write-Debug -Message ('{0}: End of function, returning {1} {2}(s)' -F $MyInvocation.MyCommand.Name, $result.count, $entityName)
        Return [array]$result
    }
}