# frozen_string_literal: true

module Delayer
  class Error < ::StandardError; end
  class TooLate < Error; end
  class AlreadyExecutedError < TooLate; end
  class AlreadyCanceledError < TooLate; end
  class AlreadyRunningError < TooLate; end
  class InvalidPriorityError < Error; end

  class RecursiveError < Error; end
  class NoLowerLevelError < RecursiveError; end
  class RemainJobsError < RecursiveError; end

  def self.StateError(state)
    case state
    when :run
      AlreadyRunningError
    when :done
      AlreadyExecutedError
    when :cancel
      AlreadyCanceledError
    else
      TooLate
    end
  end
end