#!/usr/bin/env ruby
#
# roll - Random choice selector from command line arguments
#
# Randomly selects one item from the provided command line arguments.
# Useful for making decisions or selecting random items from a list.
#
# Usage: roll <choice1> [<choice2> ...]
#
# Examples:
#   roll heads tails
#   roll red blue green yellow
#   roll "option 1" "option 2" "option 3"

if ARGV.empty? || ARGV.include?('-h') || ARGV.include?('--help')
  puts "Usage: #{File.basename(__FILE__)} <choice1> [<choice2> ...]"
  puts "Randomly select one item from the provided arguments"
  puts ""
  puts "Examples:"
  puts "  #{File.basename(__FILE__)} heads tails"
  puts "  #{File.basename(__FILE__)} red blue green yellow"
  puts "  #{File.basename(__FILE__)} \"option 1\" \"option 2\" \"option 3\""
  exit 0
end

choices = ARGV
puts choices.sample