defmodule NullaWeb.ActivityPub.FeaturedJSON do
  @doc """
  Renders a featured.
  """
  def index(actor, notes) do
    Jason.OrderedObject.new(
      "@context": "https://www.w3.org/ns/activitystreams",
      id: actor.featured,
      type: "OrderedCollection",
      totalItems: length(notes),
      orderedItems: Enum.map(notes, &data/1)
    )
  end

  defp data(note) do
    attachment =
      case note.media_attachments do
        [] ->
          []

        attachments ->
          [
            attachment:
              Enum.map(attachments, fn att ->
                Jason.OrderedObject.new(
                  type: "Document",
                  mediaType: att.mime_type,
                  url: "https://#{note.actor.domain}/files/#{att.file}"
                )
              end)
          ]
      end

    Jason.OrderedObject.new(
      "@context": "https://www.w3.org/ns/activitystreams",
      id: note.ap_id,
      type: "Note",
      summary: nil,
      inReplyTo: note.inReplyTo,
      published: note.published,
      url: note.url,
      attributedTo: note.actor.ap_id,
      to: note.to,
      cc: note.cc,
      sensitive: note.sensitive,
      content: note.content,
      contentMap: Jason.OrderedObject.new("#{note.language}": note.content),
      attachment: attachment
    )
  end
end