def _seconds_to_human(seconds)
days = seconds.to_i / 86400
seconds -= 86400 * days
hours = seconds.to_i / 3600
seconds -= 3600 * hours
minutes = seconds.to_i / 60
seconds -= 60 * minutes
if days > 1
return sprintf("%d days %02d hours %02d minutes %02d seconds", days, hours, minutes, seconds)
elsif days == 1
return sprintf("%d day %02d hours %02d minutes %02d seconds", days, hours, minutes, seconds)
elsif hours > 0
return sprintf("%d hours %02d minutes %02d seconds", hours, minutes, seconds)
elsif minutes > 0
return sprintf("%d minutes %02d seconds", minutes, seconds)
else
return sprintf("%02d seconds", seconds)
end
end