# frozen_string_literal: true

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

  include AASM
  include AasmEventsConcern

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

  aasm do
    state :paused, initial: true
    state :allowed
    state :blocked

    # 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

      before do
        pause_remotely!
      end
    end

    # Al permitir, también permitimos todes les actores que no hayan
    # tenido acciones de moderación.
    event :allow do
      transitions from: %i[paused blocked], to: :allowed

      before do
        allow_remotely!

        site.actor_moderations.paused.where(actor_id: actor_ids).allow_all!
      end
    end

    # Al bloquear, también bloqueamos a todes les actores que no hayan
    # tenido acciones de moderación.
    event :block do
      transitions from: %i[paused allowed], to: :blocked

      before do
        block_remotely!

        site.actor_moderations.paused.where(actor_id: actor_ids).block_all!
      end
    end
  end

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