class Integer

# File lib/tries.rb, line 13
def tries(options = {}, &block)
  attempts          = 1
  exception_classes = Array(options[:on] || StandardError)
  delay             = options[:delay]
  incremental       = options[:incremental]
  condition         = options[:if]

  begin
    return yield
  rescue *exception_classes => exception
    raise exception if condition && !condition.call(exception)
    next_delay = calculate_delay(delay, attempts, incremental) if delay
    [Tries.configuration.on_error, options[:on_error]].compact.each do |on_error_callback|
      on_error_callback.call(exception, attempts, next_delay)
    end
    Kernel.sleep next_delay if delay
    retry if (attempts += 1) <= self
  end

  yield
end

# File lib/tries.rb, line 37
def calculate_delay(delay, attempts, incremental)
  return delay unless incremental
  (delay * attempts * 100).round.to_f / 100
end