defmodule ExOanda.CalculatedPositionState do
  @moduledoc """
  Schema for Oanda calculated position state.

  [Oanda Docs](https://developer.oanda.com/rest-live-v20/position-df/)
  """

  use TypedEctoSchema
  import Ecto.Changeset
  alias ExOanda.Type.Atom
  @primary_key false

  typed_embedded_schema do
    field(:instrument, Atom)
    field(:net_unrealized_pl, :float)
    field(:long_unrealized_pl, :float)
    field(:short_unrealized_pl, :float)
    field(:margin_used, :float)
  end

  @doc false
  def changeset(struct, params) do
    struct
    |> cast(params, [:instrument, :net_unrealized_pl, :long_unrealized_pl, :short_unrealized_pl, :margin_used])
    |> validate_required([:instrument, :net_unrealized_pl, :long_unrealized_pl, :short_unrealized_pl, :margin_used])
  end
end