Private/New-AtwsDefinition.ps1

Function New-AtwsDefinition
{ 
  Begin
  { 
    $EntityName = '#EntityName'
           
    # Enable modern -Debug behavior
    If ($PSCmdlet.MyInvocation.BoundParameters['Debug'].IsPresent) {$DebugPreference = 'Continue'}
    
    Write-Debug ('{0}: Begin of function' -F $MyInvocation.MyCommand.Name)
    
    $ProcessObject = @()
    
    # Set up TimeZone offset handling
    If (-not($script:ESToffset))
    {
      $Now = Get-Date
      $ESTzone = [System.TimeZoneInfo]::FindSystemTimeZoneById("Eastern Standard Time")
      $ESTtime = [System.TimeZoneInfo]::ConvertTimeFromUtc($Now.ToUniversalTime(), $ESTzone)

      $script:ESToffset = (New-TimeSpan -Start $ESTtime -End $Now).TotalHours
    }

  }

  Process
  {
    $Fields = Get-AtwsFieldInfo -Entity $EntityName
    
    If ($InputObject)
    {
      Write-Verbose ('{0}: Copy Object mode: Setting ID property to zero' -F $MyInvocation.MyCommand.Name)  
      
      $CopyNo = 1

      Foreach ($Object in $InputObject) 
      { 
        # Create a new object and copy properties
        $NewObject = New-Object Autotask.$EntityName
        
        # Copy every non readonly property
        $FieldNames = $Fields.Where({$_.Name -ne 'id'}).Name
        If ($PSBoundParameters.ContainsKey('UserDefinedFields')) {
          $FieldNames += 'UserDefinedFields'
        }
        Foreach ($Field in $FieldNames)
        {
          $NewObject.$Field = $Object.$Field
        }
        If ($NewObject -is [Autotask.Ticket])
        {
          Write-Verbose ('{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 += $NewObject
      }   
    }
    Else
    {
      Write-Debug ('{0}: Creating empty [Autotask.{1}]' -F $MyInvocation.MyCommand.Name, $EntityName) 
      $ProcessObject += New-Object Autotask.$EntityName    
    }
    
    Foreach ($Parameter in $PSBoundParameters.GetEnumerator())
    {
      $Field = $Fields | Where-Object {$_.Name -eq $Parameter.Key}
      If ($Field -or $Parameter.Key -eq 'UserDefinedFields')
      { 
        If ($Field.IsPickList)
        {
          If($Field.PickListParentValueField)
          {
            $ParentField = $Fields.Where{$_.Name -eq $Field.PickListParentValueField}
            $ParentLabel = $PSBoundParameters.$($ParentField.Name)
            $ParentValue = $ParentField.PickListValues | Where-Object {$_.Label -eq $ParentLabel}
            $PickListValue = $Field.PickListValues | Where-Object {$_.Label -eq $Parameter.Value -and $_.ParentValue -eq $ParentValue.Value}                
          }
          Else 
          { 
            $PickListValue = $Field.PickListValues | Where-Object {$_.Label -eq $Parameter.Value}
          }
          $Value = $PickListValue.Value
        }
        ElseIf ($Field.Type -eq 'datetime')
        {
          $TimePresent = $Parameter.Value.Hour -gt 0 -or $Parameter.Value.Minute -gt 0 -or $Parameter.Value.Second -gt 0 -or $Parameter.Value.Millisecond -gt 0 
          
          If ($Field.Name -like "*DateTime" -or $TimePresent) { 
            # Yes, you really have to ADD the difference
            $Value = $Parameter.Value.AddHours($script:ESToffset)
          }        
        }
        Else
        {
          $Value = $Parameter.Value
        } 

        Foreach ($Object in $ProcessObject) 
        { 
          $Object.$($Parameter.Key) = $Value
        }
      }
    }
    $Result = New-AtwsData -Entity $ProcessObject
    
    # The API documentation explicitly states that you can only use the objects returned
    # by the .create() function to get the new objects ID.
    # so to return objects with accurately represents what has been created we have to
    # get them again by id
    
    $NewObjectFilter = 'id -eq {0}' -F ($Result.Id -join ' -or id -eq ')
    
    $Result = Get-AtwsData -Entity $EntityName -Filter $NewObjectFilter
  }

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

    If ($PSCmdLet.ParameterSetName -eq 'Input_Object')
    {
      # Verify copy mode
      Foreach ($Object in $Result)
      {
        If ($InputObject.Id -contains $Object.Id)
        {
          Write-Warning ('{0}: Autotask detected new object as duplicate of {1} with Id {2} and tried to update object, not create a new copy. ' -F $MyInvocation.MyCommand.Name, $EntityName, $Object.Id)
        }
      }
    }

    Return $Result
  }

}