def print_status()
  puts "It's day #{$day}. You have #{$logs} logs and #{$chunks} of chunks."
end

def print_action()
  puts "nWhat will you do? n 1. Cut a tree n 2. Split logs into chunks n 3. Go to sleep n 4. Die and end the simulation"
  puts "nYour choice:"
end

def print_delimiter()
  puts "n------------------------------------------------------------"
end

def user_interaction()
  print_delimiter()
  print_status()
  print_action()
end

def end_day()
  puts "nDay has passed and you burned a single chunk."
  $day += 1
  $chunks -= 1
end

$day = 1
$logs = 0
$chunks = 3

puts 'You are a logger in 1526. Try to survive.'

while $chunks > 0 do

  user_interaction()
  choice = gets.to_i

  case choice
    when 1
      chopped_trees = rand(2..4)

      $logs += chopped_trees

      puts "nYou cut #{chopped_trees} trees, you got #{chopped_trees} logs from them."

      end_day()
    when 2
      if $logs == 0
        puts "nYou have no logs to split."
        end_day()
        next
      end

      logs_to_chop = rand(2..5)

      if logs_to_chop > $logs
        logs_to_chop = $logs
      end

      $logs -= logs_to_chop
      $chunks += logs_to_chop*2

      puts "nYou split #{logs_to_chop} logs to #{logs_to_chop*2} chunks."

      end_day()
      next
    when 3
      puts "nYou go to sleep."
      end_day()
      next
    when 4
      puts "nYou died."
      exit
    else
      puts "nInvalid input"
      next
  end
end

puts 'You run out of chunks. You froze to death.'
exit