module ActiveJob::Exceptions

def determine_delay(seconds_or_duration_or_algorithm)
  case seconds_or_duration_or_algorithm
  when :exponentially_longer
    (executions**4) + 2
  when ActiveSupport::Duration
    duration = seconds_or_duration_or_algorithm
    duration.to_i
  when Integer
    seconds = seconds_or_duration_or_algorithm
    seconds
  when Proc
    algorithm = seconds_or_duration_or_algorithm
    algorithm.call(executions)
  else
    raise "Couldn't determine a delay based on #{seconds_or_duration_or_algorithm.inspect}"
  end
end