ifs.rb

class QuitCommand
  def match?(input)
    input == 'q'
  end

  def exectute
    puts 'Goodbye'
  end
end
  
class TweetCommand
  def match?(input)
    input == 'tweet'
  end

    def exectute
    puts 'tweeting'
  end
end
  
class DirectMessageCommand
  def match?(input)
    input == 'dm'
  end

    def exectute
    puts 'direct messaging'
  end
end
  
class HelpCommand
  def match?(input)
    input == 'help'
  end

  def exectute
    puts 'helping'
  end
end
  
def process(input)
  quit = QuitCommand.new
  tweet = TweetCommand.new
  dm = DirectMessageCommand.new
  help = HelpCommand.new
  
  if quit.match?(input) 
    quit.execute
  elsif tweet.match?(input) 
    tweet.execute
  elsif dm.match?(input)
    dm.execute
  elsif help.match?(input)
    help.execute
  end
end