defmodule Outlook.Translations.Translation do
  use Ecto.Schema
  import Ecto.Changeset

  alias Outlook.Accounts.User
  alias Outlook.Articles.Article
  alias Outlook.Translations.TranslationUnitsMap

  schema "translations" do
    field :content, TranslationUnitsMap
    field :date, :utc_datetime
    field :lang, :string, default: "DE"
    field :public, :boolean, default: false
    field :teaser, :string
    field :title, :string
    field :unauthorized, :boolean, default: false
    belongs_to :user, User
    belongs_to :article, Article

    timestamps()
  end

  @doc false
  def changeset(translation, attrs) do
    translation
    |> cast(attrs, [:lang, :title, :teaser, :date, :public, :unauthorized, :article_id])
    |> cast(attrs, [:content])
    |> validate_required([:lang, :title, :content, :date, :public, :unauthorized, :article_id])
    |> unique_constraint([:lang, :article_id],
        message: "translation for this language already exists",
        name: :article_id_lang_unique_index)
  end
end