defmodule NLdoc.Spec.StringDescriptor do
  @moduledoc """
  This module defines the Ecto schema for the NLdoc spec StringDescriptor object.
  """

  use NLdoc.Spec.Schema, type: "https://spec.nldoc.nl/Resource/StringDescriptor"

  typed_embedded_schema null: false do
    field :type, :string, default: @resource_type
    field :uri, :string
    field :value, :string, null: true
  end

  @spec changeset(struct(), map()) :: Ecto.Changeset.t()
  def changeset(descriptor, attrs) do
    descriptor
    |> cast(attrs, [:type, :uri, :value], @cast_opts)
    |> validate_required([:type, :uri])
    |> validate_inclusion(:type, [@resource_type])
    |> validate_url(:uri)
  end
end