# frozen_string_literal: true

require_relative 'config'

module CodebreakerDiz
  class Matcher
    class << self
      def calculate_matches(secret, user_code)
        delta = []
        result = []

        (0...CODE_LENGTH).each do |i|
          if secret[i] == user_code[i]                   then result << EXACT_MATCH_SIGN
          elsif (secret - delta).include? user_code[i]   then result << NUMBER_MATCH_SIGN
          end

          delta << user_code[i]
        end

        result.sort!.join
      end
    end
  end
end