- # frozen_string_literal: true
-
- require 'singleton'
-
- class EntityCache
- include Singleton
-
- MAX_EXPIRATION = 7.days.freeze
-
- def status(url)
- Rails.cache.fetch(to_key(:status, url), expires_in: MAX_EXPIRATION) { FetchRemoteStatusService.new.call(url) }
- end
-
- def mention(username, domain)
- Rails.cache.fetch(to_key(:mention, username, domain), expires_in: MAX_EXPIRATION) { Account.select(:id, :username, :domain, :url).find_remote(username, domain) }
- end
-
- def emoji(shortcodes, domain)
- shortcodes = Array(shortcodes)
- return [] if shortcodes.empty?
-
- cached = Rails.cache.read_multi(*shortcodes.map { |shortcode| to_key(:emoji, shortcode, domain) })
- uncached_ids = []
-
- shortcodes.each do |shortcode|
- uncached_ids << shortcode unless cached.key?(to_key(:emoji, shortcode, domain))
- end
-
- unless uncached_ids.empty?
- uncached = CustomEmoji.where(shortcode: shortcodes, domain: domain, disabled: false).index_by(&:shortcode)
- uncached.each_value { |item| Rails.cache.write(to_key(:emoji, item.shortcode, domain), item, expires_in: MAX_EXPIRATION) }
- end
-
- shortcodes.filter_map { |shortcode| cached[to_key(:emoji, shortcode, domain)] || uncached[shortcode] }
- end
-
- def to_key(type, *ids)
- "#{type}:#{ids.compact.map(&:downcase).join(':')}"
- end
- end
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