defmodule BDS.Media.Translation do
  @moduledoc false

  use Ecto.Schema
  import Ecto.Changeset

  @primary_key {:id, :string, autogenerate: false}
  @foreign_key_type :string

  schema "media_translations" do
    belongs_to :media, BDS.Media.Media, foreign_key: :translation_for, references: :id, type: :string
    field :project_id, :string
    field :language, :string
    field :title, :string
    field :alt, :string
    field :caption, :string
    field :created_at, :integer
    field :updated_at, :integer
  end

  def changeset(translation, attrs) do
    translation
    |> cast(attrs, [:id, :project_id, :translation_for, :language, :title, :alt, :caption, :created_at, :updated_at],
      empty_values: [nil]
    )
    |> validate_required([:id, :project_id, :translation_for, :language, :created_at, :updated_at])
    |> foreign_key_constraint(:translation_for)
    |> unique_constraint(:language, name: :media_translations_translation_language_idx)
  end
end