# frozen_string_literal: true

require 'distributed_press/v1/social/client'
require 'distributed_press/v1/social/hook'
require 'distributed_press/v1/social/dereferencer'

# Gestiona la Social Inbox de un sitio
class SocialInbox
  # @return [Site]
  attr_reader :site

  # @param :site [Site]
  def initialize(site:)
    @site = site
  end

  # @return [String]
  def actor
    @actor ||=
      begin
        user   = site.config.dig('activity_pub', 'username')
        user ||= hostname.split('.', 2).first

        "@#{user}@#{hostname}"
      end
  end

  def actor_id
    @actor_id ||= generate_uri do |uri|
      uri.path = '/about.jsonld'
    end
  end

  # @return [DistributedPress::V1::Social::Client]
  def client
    @client ||= DistributedPress::V1::Social::Client.new(
      url: site.config.dig('activity_pub', 'url'),
      public_key_url: public_key_url,
      private_key_pem: site.private_key_pem,
      logger: Rails.logger,
      cache_store: :redis
    )
  end

  # @return [DistributedPress::V1::Social::Dereferencer]
  def dereferencer
    @dereferencer ||= DistributedPress::V1::Social::Dereferencer.new(client: client)
  end

  # @return [DistributedPress::V1::Social::Hook]
  def hook
    @hook ||= DistributedPress::V1::Social::Hook.new(client: client, actor: actor)
  end

  # @return [String]
  def public_key_url
    @public_key_url ||= generate_uri do |uri|
      uri.path = '/about.jsonld'
      uri.fragment = 'main-key'
    end
  end

  def hostname
    @hostname ||=
      site.config.dig('activity_pub', 'hostname') || site.hostname
  end

  # Genera una URI dentro de este sitio
  #
  # @return [String]
  def generate_uri(&block)
    @public_key_url ||= URI("https://#{hostname}").tap(&block).to_s
  end
end