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# -*- coding: binary -*-
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require 'timeout'
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module SecondsHandle #:nodoc: all
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  def transform(secs)
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    case secs
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    when 0
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      to_s
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    when 1..59
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      "#{secs} seconds"
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    when 60..3559
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      "#{secs/60} minutes and #{secs%60} seconds"
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    else
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      hours = secs/3600
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      secs -= (hours*3600)
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      "#{hours} hours, #{secs/60} minutes and #{secs%60} seconds"
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    end
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  end
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end
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class DnsTimeout # :nodoc: all
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  include SecondsHandle
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  def initialize(seconds)
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    if seconds.is_a? Numeric and seconds >= 0
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      @timeout = seconds
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    else
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      raise DnsTimeoutArgumentError, "Invalid value for tcp timeout"
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    end
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  end
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  def to_i
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    @timeout
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  end
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  def to_s
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    if @timeout == 0
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      @output
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    else
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      @timeout.to_s
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    end
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  end
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  def pretty_to_s
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    transform(@timeout)
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  end
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  def timeout
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    unless block_given?
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      raise DnsTimeoutArgumentError, "Block required but missing"
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    end
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    if @timeout == 0
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      yield
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    else
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      return Timeout.timeout(@timeout) do
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        yield
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      end
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    end
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  end
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end
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class TcpTimeout < DnsTimeout # :nodoc: all
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  def initialize(seconds)
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    @output = "infinite"
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    super(seconds)
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  end
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end
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class UdpTimeout < DnsTimeout # :nodoc: all
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  def initialize(seconds)
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    @output = "not defined"
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    super(seconds)
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  end
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end
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class DnsTimeoutArgumentError < ArgumentError # :nodoc: all
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end
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