defmodule ArcadiaCloud.Catalog.PlanVersion do
  use Ecto.Schema
  import Ecto.Changeset

  @primary_key {:id, :binary_id, autogenerate: true}
  @foreign_key_type :binary_id

  @statuses ~w(draft active retired)

  schema "plan_versions" do
    field :version, :integer
    field :base_price_cents, :integer, default: 0
    field :currency, :string, default: "AUD"
    field :status, :string, default: "draft"
    field :published_at, :utc_datetime

    belongs_to :plan, ArcadiaCloud.Catalog.Plan
    has_many :items, ArcadiaCloud.Catalog.PlanItem

    timestamps(type: :utc_datetime)
  end

  def changeset(version, attrs) do
    version
    |> cast(attrs, [:plan_id, :version, :base_price_cents, :currency, :status, :published_at])
    |> validate_required([:plan_id, :version])
    |> validate_inclusion(:status, @statuses)
    |> validate_length(:currency, is: 3)
    |> unique_constraint([:plan_id, :version])
  end
end