mastodon/app/services/post_status_service.rb

# frozen_string_literal: true

class PostStatusService < BaseService
  # Post a text status update, fetch and notify remote users mentioned
  # @param [Account] account Account from which to post
  # @param [String] text Message
  # @param [Status] in_reply_to Optional status to reply to
  # @param [Hash] options
  # @option [Boolean] :sensitive
  # @option [String] :visibility
  # @option [String] :spoiler_text
  # @option [Enumerable] :media_ids Optional array of media IDs to attach
  # @option [Doorkeeper::Application] :application
  # @return [Status]
  def call(account, text, in_reply_to = nil, options = {})
    media = validate_media options[:media_ids]
    status = account.statuses.create!(text: text,
                                      thread: in_reply_to,
                                      sensitive: options[:sensitive],
                                      spoiler_text: options[:spoiler_text] || '',
                                      visibility: options[:visibility],
                                      application: options[:application])

    attach_media(status, media)
    process_mentions_service.call(status)
    process_hashtags_service.call(status)

    LinkCrawlWorker.perform_async(status.id)
    DistributionWorker.perform_async(status.id)
    Pubsubhubbub::DistributionWorker.perform_async(status.stream_entry.id)

    status
  end

  private

  def validate_media(media_ids)
    return if media_ids.nil? || !media_ids.is_a?(Enumerable)
    media = MediaAttachment.where(status_id: nil).where(id: media_ids.take(4).map(&:to_i))
    if media.length > 1
      media.each do |m|
        if m.video?
          raise Mastodon::NotPermitted, 'Cannot attach a video to a toot that already contains images'
        end
      end
    end
    return media
  end

  def attach_media(status, media)
    return if media.nil?
    media.update(status_id: status.id)
  end

  def process_mentions_service
    @process_mentions_service ||= ProcessMentionsService.new
  end

  def process_hashtags_service
    @process_hashtags_service ||= ProcessHashtagsService.new
  end
end