activitypub-academy/app/serializers/rest/status_serializer.rb

# frozen_string_literal: true

class REST::StatusSerializer < ActiveModel::Serializer
  attributes :id, :created_at, :in_reply_to_id, :in_reply_to_account_id,
             :sensitive, :spoiler_text, :visibility, :language,
             :uri, :content, :url, :replies_count, :reblogs_count,
             :favourites_count

  attribute :favourited, if: :current_user?
  attribute :reblogged, if: :current_user?
  attribute :muted, if: :current_user?
  attribute :pinned, if: :pinnable?

  belongs_to :reblog, serializer: REST::StatusSerializer
  belongs_to :application
  belongs_to :account, serializer: REST::AccountSerializer

  has_many :media_attachments, serializer: REST::MediaAttachmentSerializer
  has_many :ordered_mentions, key: :mentions
  has_many :tags
  has_many :emojis, serializer: REST::CustomEmojiSerializer

  def id
    object.id.to_s
  end

  def in_reply_to_id
    object.in_reply_to_id&.to_s
  end

  def in_reply_to_account_id
    object.in_reply_to_account_id&.to_s
  end

  def current_user?
    !current_user.nil?
  end

  def visibility
    # This visibility is masked behind "private"
    # to avoid API changes because there are no
    # UX differences
    if object.limited_visibility?
      'private'
    else
      object.visibility
    end
  end

  def uri
    OStatus::TagManager.instance.uri_for(object)
  end

  def content
    Formatter.instance.format(object)
  end

  def url
    TagManager.instance.url_for(object)
  end

  def favourited
    if instance_options && instance_options[:relationships]
      instance_options[:relationships].favourites_map[object.id] || false
    else
      current_user.account.favourited?(object)
    end
  end

  def reblogged
    if instance_options && instance_options[:relationships]
      instance_options[:relationships].reblogs_map[object.id] || false
    else
      current_user.account.reblogged?(object)
    end
  end

  def muted
    if instance_options && instance_options[:relationships]
      instance_options[:relationships].mutes_map[object.conversation_id] || false
    else
      current_user.account.muting_conversation?(object.conversation)
    end
  end

  def pinned
    if instance_options && instance_options[:relationships]
      instance_options[:relationships].pins_map[object.id] || false
    else
      current_user.account.pinned?(object)
    end
  end

  def pinnable?
    current_user? &&
      current_user.account_id == object.account_id &&
      !object.reblog? &&
      %w(public unlisted).include?(object.visibility)
  end

  def ordered_mentions
    object.active_mentions.to_a.sort_by(&:id)
  end

  class ApplicationSerializer < ActiveModel::Serializer
    attributes :name, :website
  end

  class MentionSerializer < ActiveModel::Serializer
    attributes :id, :username, :url, :acct

    def id
      object.account_id.to_s
    end

    def username
      object.account_username
    end

    def url
      TagManager.instance.url_for(object.account)
    end

    def acct
      object.account_acct
    end
  end

  class TagSerializer < ActiveModel::Serializer
    include RoutingHelper

    attributes :name, :url

    def url
      tag_url(object)
    end
  end
end