module CachedFetch
  def self.timeline(user_id)
    cached("timeline:#{user_id}") { LegitClient.timeline(user_id)&.[](:timeline) }
  end

  def self.user_by_id(user_id)
    cached("user_by_id:#{user_id}") { LegitClient.user_by_id(user_id)&.[](:user) }
  end

  def self.user_by_username(username)
    cached("user_by_username:#{username}") { LegitClient.user_by_username(username)&.[](:user) }
  end

  def self.cached(key, &block)
    Rails.cache.fetch(key, expires_in: (15 + rand(15)).minutes, &block)
  end
end