# frozen_string_literal: true

# Mantiene el registro de relaciones entre sitios e instancias
class InstanceModeration < ApplicationRecord
  IGNORED_EVENTS = [].freeze
  IGNORED_STATES = [].freeze

  include AASM

  belongs_to :site
  belongs_to :instance, class_name: 'ActivityPub::Instance'

  aasm do
    state :paused, initial: true, before_enter: :pause_remotely!
    state :allowed, before_enter: :allow_remotely!
    state :blocked, before_enter: :block_remotely!

    error_on_all_events do |e|
      ExceptionNotifier.notify_exception(e, data: { site: site.name, instance: instance.hostname, instance_moderation: id })
    end

    # Al volver la instancia a pausa no cambiamos el estado de
    # moderación de actores pre-existente.
    event :pause do
      transitions from: %i[allowed blocked], to: :paused
    end

    # Al permitir, solo bloqueamos la instancia, sin modificar el estado
    # de les actores y comentarios retroactivamente.
    event :allow do
      transitions from: %i[paused blocked], to: :allowed
    end

    # Al bloquear, solo bloqueamos la instancia, sin modificar el estado
    # de les actores y comentarios retroactivamente.
    event :block do
      transitions from: %i[paused allowed], to: :blocked
    end
  end

  # Definir eventos en masa
  include AasmEventsConcern

  # @return [Array<String>]
  def actor_ids
    ActivityPub::Actor.where(instance_id: instance_id).ids
  end

  # Elimina la instancia de todas las listas
  #
  # @return [Boolean]
  def pause_remotely!
    raise unless
      site.social_inbox.blocklist.delete(list: [instance.list_name]).ok? &&
      site.social_inbox.allowlist.delete(list: [instance.list_name]).ok?
  end

  # Deja de permitir la instancia
  #
  # @return [Boolean]
  def block_remotely!
    raise unless
      site.social_inbox.allowlist.delete(list: [instance.list_name]).ok? &&
      site.social_inbox.blocklist.post(list: [instance.list_name]).ok?
  end

  # Permite la instancia
  #
  # @return [Boolean]
  def allow_remotely!
    raise unless
      site.social_inbox.blocklist.delete(list: [instance.list_name]).ok? &&
      site.social_inbox.allowlist.post(list: [instance.list_name]).ok?
  end
end