defmodule Eventos.Events.Comment do
  @moduledoc """
  An actor comment (for instance on an event or on a group)
  """

  use Ecto.Schema
  import Ecto.Changeset

  alias Eventos.Events.Event
  alias Eventos.Actors.Actor
  alias Eventos.Actors.Comment

  schema "comments" do
    field :text, :string
    field :url, :string
    field :local, :boolean, default: true
    field :uuid, Ecto.UUID
    belongs_to :actor, Actor, [foreign_key: :actor_id]
    belongs_to :attributed_to, Actor, [foreign_key: :attributed_to_id]
    belongs_to :event, Event, [foreign_key: :event_id]
    belongs_to :in_reply_to_comment, Comment, [foreign_key: :in_reply_to_comment_id]
    belongs_to :origin_comment, Comment, [foreign_key: :origin_comment_id]

    timestamps()
  end

  @doc false
  def changeset(comment, attrs) do
    uuid = Ecto.UUID.generate()
    comment
    |> cast(attrs, [:url, :text, :actor_id, :event_id, :in_reply_to_comment_id, :attributed_to_id])
    |> validate_required([:text, :actor_id])
    |> put_change(:uuid, uuid)
    |> put_change(:url, "#{EventosWeb.Endpoint.url()}/comments/#{uuid}")
  end
end