defmodule Ammoprices.Catalog.Caliber do
  @moduledoc false
  use Ecto.Schema

  import Ecto.Changeset

  @primary_key {:id, :binary_id, autogenerate: true}
  @foreign_key_type :binary_id
  schema "calibers" do
    field :name, :string
    field :slug, :string
    field :category, :string
    field :aliases, {:array, :string}, default: []

    has_many :products, Ammoprices.Catalog.Product

    timestamps(type: :utc_datetime)
  end

  def changeset(caliber, attrs) do
    caliber
    |> cast(attrs, [:name, :slug, :category, :aliases])
    |> validate_required([:name, :slug, :category])
    |> validate_inclusion(:category, ~w(handgun rifle rimfire shotgun))
    |> unique_constraint(:slug)
  end
end