water checking

      when 'You get'
        /are (.*) parts left of the water|is only (.*) part left of the water/ =~ bput('count my water', 'are .* parts left of the water', 'is only .* part left of the water')
        water = Regexp.last_match(1).scan(/\w+/).to_a || Regexp.last_match(2).scan(/\w+/).to_a
        val_map = { 'one' => 1, 'two' => 2, 'three' => 3, 'four' => 4, 'five' => 5, 'six' => 6, 'seven' => 7, 'eight' => 8, 'nine' => 9, 'ten' => 10, 'eleven' => 11, 'twelve' => 12, 'thirteen' => 13, 'fourteen' => 14, 'fifteen' => 15, 'sixteen' => 16, 'seventeen' => 17, 'eighteen' => 18, 'nineteen' => 19, 'twenty' => 20, 'twenty-one' => 21, 'twenty-two' => 22, 'twenty-three' => 23, 'twenty-four' => 24, 'twenty-five' => 25, 'twenty-six' => 26, 'twenty-seven' => 27, 'twenty-eight' => 28, 'twenty-nine' => 29, 'thirty' => 30, 'thirty-one' => 31, 'thirty-two' => 32, 'thirty-three' => 33, 'thirty-four' => 34, 'thirty-five' => 35, 'thirty-six' => 36, 'thirty-seven' => 37, 'thirty-eight' => 38, 'thirty-nine' => 39, 'forty' => 40, 'forty-one' => 41, 'forty-two' => 42, 'forty-three' => 43, 'forty-four' => 44, 'forty-five' => 45, 'forty-six' => 46, 'forty-seven' => 47, 'forty-eight' => 48, 'forty-nine' => 49,'fifty' => 50, 'sixty' => 60, 'seventy' => 70, 'eighty' => 80, 'ninety' => 90 }
        value = water.map { |word| val_map[word] }.inject(&:+)
        stock_needed = ((quantity * recipe['volume'] - value) / 100.0).ceil
    end