accounts_controller.rb

# frozen_string_literal: true

class AccountsController < ApplicationController
  PAGE_SIZE     = 20
  PAGE_SIZE_MAX = 200

  include AccountControllerConcern
  include WebAppControllerConcern
  include SignatureAuthentication

  before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
  before_action :set_cache_headers

  skip_around_action :set_locale, if: -> { [:json, :rss].include?(request.format&.to_sym) }
  skip_before_action :require_functional!, unless: :whitelist_mode?

  def show
    respond_to do |format|
      format.html do
        expires_in 0, public: true unless user_signed_in?
      end

      format.rss do
        expires_in 1.minute, public: true

        limit     = params[:limit].present? ? [params[:limit].to_i, PAGE_SIZE_MAX].min : PAGE_SIZE
        @statuses = filtered_statuses.without_reblogs.limit(limit)
        @statuses = cache_collection(@statuses, Status)
        render xml: RSS::AccountSerializer.render(@account, @statuses, params[:tag])
      end

      format.json do
        expires_in 3.minutes, public: !(authorized_fetch_mode? && signed_request_account.present?)
        render_with_cache json: @account, content_type: 'application/activity+json', serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter
      end
    end
  end

  private

  def show_pinned_statuses?
    [replies_requested?, media_requested?, tag_requested?, params[:max_id].present?, params[:min_id].present?].none?
  end

  def filtered_statuses
    default_statuses.tap do |statuses|
      statuses.merge!(hashtag_scope)    if tag_requested?
      statuses.merge!(only_media_scope) if media_requested?
      statuses.merge!(no_replies_scope) unless replies_requested?
    end
  end

  def default_statuses
    @account.statuses.where(visibility: [:public, :unlisted])
  end

  def only_media_scope
    Status.where(id: account_media_status_ids)
  end

  def account_media_status_ids
    @account.media_attachments.attached.reorder(nil).select(:status_id).group(:status_id)
  end

  def no_replies_scope
    Status.without_replies
  end

  def hashtag_scope
    tag = Tag.find_normalized(params[:tag])