module PairSee
  class LogLines
    require_relative 'log_line'
    require 'git'

    include Enumerable

    def initialize(lines)
      @lines = lines
    end

    def each(&block)
      @lines.each &block
    end

    def last
      @lines.last
    end

    def active?(person)
      any? do |log_line|
        log_line.authored_by?(person)
      end
    end

    def commits_for_pair(person1, person2)
      select { |log_line| log_line.authored_by?(person1, person2) }
    end

    def commits_not_by_known_person(devs)
      reject { |log_line| log_line.by_any? devs }
    end

    def solo_commits(people, person)
      select do |log_line|
        log_line.authored_by?(person) && (people - [person]).none? { |single_person| log_line.authored_by?(single_person) }
      end
    end
  end
end