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| bottle_lyric = ->(count) { "#{count} #{count == 1 ? "bottle" : "bottles"} of beer" } | |
| 99.downto(2) do |c| | |
| puts "#{bottle_lyric.call(c)} on the wall," | |
| puts "#{bottle_lyric.call(c)}!" | |
| puts "Take one down, pass it around" | |
| puts "#{bottle_lyric.call(c-1)} on the wall!" | |
| puts | |
| end | |
| puts "1 bottle of beer on the wall," | |
| puts "1 bottle of beer!" | |
| puts "Take one down, pass it around," | |
| puts "No more bottles of beer on the wall :-(" |
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| class BottlesOfBeer | |
| attr_reader :bottles_in_the_bar | |
| def initialize(bottles_in_the_bar) | |
| @bottles_in_the_bar = bottles_in_the_bar | |
| end | |
| def count_off | |
| bottles_in_the_bar.downto(2) do |number| | |
| current_beer_count = beer_count_lyric(number) | |
| next_beer_count = beer_count_lyric(number - 1) | |
| puts "#{current_beer_count} on the wall, | |
| #{current_beer_count}! | |
| Take one down, pass it around, | |
| #{next_beer_count} on the wall!" | |
| end | |
| sing_final! | |
| end | |
| def sing_final! | |
| puts "1 bottle of beer on the wall, | |
| 1 bottle of beer! | |
| Take one down, pass it around, | |
| No more bottles of beer on the wall :-(" | |
| end | |
| private | |
| def beer_count_lyric(beer_bottle_count) | |
| "#{pluralize('bottle', beer_bottle_count)} of beer" | |
| end | |
| def pluralize(word, count) | |
| "#{count} #{word}".tap do |p| | |
| p << "s" if count != 1 | |
| end | |
| end | |
| end | |
| puts "How many bottles of beer have you got? " | |
| bottles_in_the_bar = gets.to_i | |
| bottle = BottlesOfBeer.new(bottles_in_the_bar) | |
| bottle.count_off |
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