<commit_before># frozen_string_literal: true

class ClearDomainMediaService < BaseService
  attr_reader :domain_block

  def call(domain_block)
    @domain_block = domain_block
    clear_media! if domain_block.reject_media?
  end

  private

  def invalidate_association_caches!
    # Normally, associated models of a status are immutable (except for accounts)
    # so they are aggressively cached. After updating the media attachments to no
    # longer point to a local file, we need to clear the cache to make those
    # changes appear in the API and UI
    @affected_status_ids.each { |id| Rails.cache.delete_matched("statuses/#{id}-*") }
  end

  def clear_media!
    @affected_status_ids = []

    begin
      clear_account_images!
      clear_account_attachments!
      clear_emojos!
    ensure
      invalidate_association_caches!
    end
  end

  def clear_account_images!
    blocked_domain_accounts.reorder(nil).find_each do |account|
      account.avatar.destroy if account.avatar&.exists?
      account.header.destroy if account.header&.exists?
      account.save
    end
  end

  def clear_account_attachments!
    media_from_blocked_domain.reorder(nil).find_each do |attachment|
      @affected_status_ids << attachment.status_id if attachment.status_id.present?

      attachment.file.destroy if attachment.file&.exists?
      attachment.type = :unknown
      attachment.save
    end
  end

  def clear_emojos!
    emojis_from_blocked_domains.destroy_all
  end

  def blocked_domain
    domain_block.domain
  end

  def blocked_domain_accounts
    Account.by_domain_and_subdomains(blocked_domain)
  end

  def media_from_blocked_domain
    MediaAttachment.joins(:account).merge(blocked_domain_accounts).reorder(nil)
  end

  def emojis_from_blocked_domains
    CustomEmoji.by_domain_and_subdomains(blocked_domain)
  end
end<commit_msg>Fix incorrect and slow cache invalidation in ClearDomainMediaService (#19062)<commit_after># frozen_string_literal: true

class ClearDomainMediaService < BaseService
  attr_reader :domain_block

  def call(domain_block)
    @domain_block = domain_block
    clear_media! if domain_block.reject_media?
  end

  private

  def invalidate_association_caches!(status_ids)
    # Normally, associated models of a status are immutable (except for accounts)
    # so they are aggressively cached. After updating the media attachments to no
    # longer point to a local file, we need to clear the cache to make those
    # changes appear in the API and UI
    Rails.cache.delete_multi(status_ids.map { |id| "statuses/#{id}" })
  end

  def clear_media!
    clear_account_images!
    clear_account_attachments!
    clear_emojos!
  end

  def clear_account_images!
    blocked_domain_accounts.reorder(nil).find_each do |account|
      account.avatar.destroy if account.avatar&.exists?
      account.header.destroy if account.header&.exists?
      account.save
    end
  end

  def clear_account_attachments!
    media_from_blocked_domain.reorder(nil).find_in_batches do |attachments|
      affected_status_ids = []

      attachments.each do |attachment|
        affected_status_ids << attachment.status_id if attachment.status_id.present?

        attachment.file.destroy if attachment.file&.exists?
        attachment.type = :unknown
        attachment.save
      end

      invalidate_association_caches!(affected_status_ids) unless affected_status_ids.empty?
    end
  end

  def clear_emojos!
    emojis_from_blocked_domains.destroy_all
  end

  def blocked_domain
    domain_block.domain
  end

  def blocked_domain_accounts
    Account.by_domain_and_subdomains(blocked_domain)
  end

  def media_from_blocked_domain
    MediaAttachment.joins(:account).merge(blocked_domain_accounts).reorder(nil)
  end

  def emojis_from_blocked_domains
    CustomEmoji.by_domain_and_subdomains(blocked_domain)
  end
end
{'fraction_non_alphanumeric': 0.06100726895119418, 'fraction_numerical': 0.0012980269989615785, 'mean_word_length': 3.9271099744245523, 'pattern_counts': {'":': 0, '<': 9, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4429211', 'n_tokens_mistral': 1218, 'n_tokens_neox': 1168, 'n_words': 272}