module PairSee class Card attr_reader :card_name, :number_of_commits, :last_date def initialize(card_name, number_of_commits, first_date, last_date) @card_name = card_name @number_of_commits = number_of_commits @first_date, @last_date = first_date, last_date end def duration (@first_date - @last_date).to_i + 1 end def ==(other) card_name == other.card_name number_of_commits == other.number_of_commits end def pretty commits_per_day = ((number_of_commits * 1.0) / duration).round(2) "#{card_name} - - - commits: #{number_of_commits} - - - duration: #{duration} days - - - last commit: #{last_date} - - - commits per day: #{commits_per_day}" end end end