defmodule DediboxPrices.Entities.Offer do
  use DediboxPrices.Schema
  import Ecto.Changeset

  @required_fields [
    :name,
    :tag,
    :cpu,
    :memory,
    :disk_amount,
    :disk_size,
    :disk_properties,
    :bandwith,
    :rpn,
    :disponibility,
    :price
  ]
  @optional_fields []

  # @derive {Jason.Encoder, only: [:name, :price, :memory, :disponibility, :inserted_at]}
  # @derive Jason.Encoder
  schema "offers" do
    field :bandwith, :integer
    field :cpu, :string
    field :disk_amount, :integer
    field :disk_properties, :string
    field :disk_size, :integer
    field :disponibility, :integer
    field :memory, :integer
    field :name, :string
    field :price, :float
    field :rpn, :string
    field :tag, :string

    timestamps()
  end

  def as_json(offer) do
    offer |> Map.from_struct |> Map.reject(fn {k, v} -> k == :__meta__ end)
  end

  @doc false
  def changeset(offer, attrs) do
    offer
    |> cast(attrs, @required_fields ++ @optional_fields)
    |> validate_required(@required_fields)
  end
end