neiam /gitgud

defmodule GitGud.Federation.Follow do
  use Ecto.Schema
  import Ecto.Changeset

  alias GitGud.Federation.Activity
  alias GitGud.Federation.Actor

  schema "fed_follows" do
    field :accepted_at, :utc_datetime

    belongs_to :follower_actor, Actor
    belongs_to :target_actor, Actor
    belongs_to :follow_activity, Activity

    timestamps(type: :utc_datetime)
  end

  def changeset(follow, attrs) do
    follow
    |> cast(attrs, [:follower_actor_id, :target_actor_id, :follow_activity_id, :accepted_at])
    |> validate_required([:follower_actor_id, :target_actor_id])
    |> unique_constraint(:follower_actor_id,
      name: :fed_follows_follower_actor_id_target_actor_id_index
    )
  end

  def accept(follow), do: change(follow, accepted_at: DateTime.utc_now(:second))
end