nldoc_gutenberg

defmodule NLdoc.Gutenberg.Post do
  @moduledoc """
  Type definition of Gutenberg block
  """

  use TypedEctoSchema
  import Ecto.Changeset

  alias NLdoc.Gutenberg

  @primary_key false

  typed_embedded_schema null: false do
    field(:id, Ecto.UUID)
    embeds_many(:blocks, Gutenberg.Block, on_replace: :delete)
  end

  @doc """
  Create new Gutenberg block based on map.
  """
  @spec new(map()) :: {:ok, __MODULE__.t()} | {:error, Ecto.Changeset.t()}
  def new(template) when is_map(template) do
    changeset = changeset(%__MODULE__{}, template)

    if changeset.valid? do
      document = Ecto.Changeset.apply_changes(changeset)
      {:ok, document}
    else
      {:error, changeset}
    end
  end

  @doc """
  Changeset for Gutenberg block
  """
  def changeset(post, attrs) do
    post
    |> cast(attrs, [:id])
    |> cast_embed(:blocks)
  end
end