timecounter

#!/usr/bin/env ruby

# good fonts:'Big Money-ne', dotmatrix, doh, Electronic

require 'ruby_figlet'
require 'pastel'
require 'tty-cursor'
require 'optimist'

using RubyFiglet # For String.new(...).art / .art! Moneky Patches

opts = Optimist.options do
  synopsis 'A simple countdown timer for tty. '
  version 'countdown 0.1.1 (c)2021 werner.stein@gmail.com'

  opt :color, 'Color name', short: 'c', default: 'blue'
  opt :font, 'Font name', short: 'f', default: 'Big Money-ne'
  opt :long, 'Create an hours instead of a minutes counter', short: 'l', default: false
end

timeformat = opts[:long] ? '%H:%M:%S' : '%M:%S'

cursor = TTY::Cursor
pastel = Pastel.new

start_time = Time.now
t = Time.new(0)

0.step do |seconds|
  counter = (t + seconds).strftime(timeformat)
  counter.art! opts[:font]

  print cursor.clear_screen
  puts pastel.decorate(counter, opts[:color].to_sym, :bold)

  sleep 1.0 - (Time.now - start_time - seconds)
end