Simple PowerShell v5 Class module to managing a ToyBox

toybox_v0.1.0.psm1

#
# Example PowerShell v5 class for a ToyBox
#
# Jeremy Goodrum - ExosphereData, LLC 2017
# http://www.exospheredata.com/2017/01/12/building-your-first-powershell-class

enum EnumState
{
    Missing
    Stored
    Playing
}

class ToyBox
{
# Name of the Toy or Item to be stored
  [string] $Name

  # Current State or Location of the Toy
  [EnumState] $State

  # This is currently a Favorited item or toy
  [boolean] $Favorite

  hidden [System.Object[]] $stored_Items

  # New method to return all an object of Type [ToyBox] containing
  # the currently declared object.
  [ToyBox[]] Get()
  {
    return $this.GetMyItems()
  }
  [void] Save()
  {
    $this.SaveMyItems()        
  }

  hidden [string[]] SaveMyItems ()
  {
    # Pull all of the stored_Items and return them for processing. 
    $___storedItems = $this.GetMyItems()
    $__existingItem = $___storedItems | ?{$_.Name -eq $this.Name}
    if (-not [string]::IsNullOrEmpty($__existingItem) ){
      # If the item is already in the object, then we will want to
      # update the values based on the current state
      $__existingItem.Name = $this.Name
      $__existingItem.State = $this.State
      $__existingItem.Favorite = $this.Favorite
      $__currentList = ($___storedItems | ?{$_.Name -ne $this.Name})
      $__currentList += $__existingItem
      $this.stored_Items = ($__currentList | ConvertTo-Json)
    }
    else{
      # Since this item doesn't exist, we will just need to go ahead 
      # create it here.  First, we will declare a hash of the object
      # properties and then add it to our stored items.  Finally,
      # we will convert the entire thing into a JSON object to be stored
      # in our hidden property.
      $__newItem = @{
        Name = $this.Name
        State = $this.State
        Favorite = $this.Favorite
      }
      $___storedItems += $__newItem
      $this.stored_Items = ($___storedItems | ConvertTo-Json)
    }
    return $this.stored_Items
  }

  hidden [ToyBox[]] GetMyItems()
  {
    if (-not [string]::IsNullOrEmpty($this.stored_Items) ){
      return ($this.stored_Items | ConvertFrom-Json)
    } else {
      return $null
    }
  }

  static [ToyBox[]] op_Addition([ToyBox] $Left, [ToyBox] $Right)
  {
    $__current = @()
    $__current += ($Left | ConvertTo-Json)
    $__current += ($Right | ConvertTo-Json)
    return  ($__current | ConvertFrom-Json)

  }
}


function New-ToyBox{
    param(
        [string] $Name,
        [EnumState] $State,
        [boolean] $Favorite

        )
    $__toyBox = [ToyBox]::new()
    if($Name) {$__toyBox.Name = $Name}
    if($State) {$__toyBox.State = $State}
    if($Favorite) {$__toyBox.Favorite = $Favorite}


    return $__toyBox
}