MontealegreLuis/chat-bot

class WordPlay
    def self.best_sentence(sentences, desired_words)
        ranked_sentences = sentences.sort_by do |s|
            s.words.length - (s.downcase.words - desired_words).length
        end
        ranked_sentences.last
    end

    def self.switch_pronouns(text)
        text.gsub(/\b(I am|You are|I|You|Me|Your|My)\b/i) do |pronoun|
            case pronoun.downcase
                when 'i'
                    'you'
                when 'you'
                    'me'
                when 'me'
                    'you'
                when 'i am'
                    'you are'
                when 'you are'
                    'i am'
                when 'your'
                    'my'
                when 'my'
                    'your'
            end
        end.sub(/^me\b/i, 'i')
    end
end