defmodule Mobilizon.Actors.Follower do
  @moduledoc """
  Represents the following of an actor to another actor
  """
  use Ecto.Schema
  import Ecto.Changeset
  alias Mobilizon.Actors.Follower
  alias Mobilizon.Actors.Actor

  schema "followers" do
    field(:approved, :boolean, default: false)
    field(:score, :integer, default: 1000)
    belongs_to(:target_actor, Actor)
    belongs_to(:actor, Actor)
  end

  @doc false
  def changeset(%Follower{} = member, attrs) do
    member
    |> cast(attrs, [:score, :approved, :target_actor_id, :actor_id])
    |> validate_required([:score, :approved, :target_actor_id, :actor_id])
    |> unique_constraint(:target_actor_id, name: :followers_actor_target_actor_unique_index)
  end

  def url(%Follower{id: id}) do
    "#{MobilizonWeb.Endpoint.url()}/follow/#{id}/activity"
  end
end