# frozen_string_literal: true

require_relative 'config'

module CodebreakerDiz
  class Matcher
    def initialize(secret_code, user_code)
      @secret_code = secret_code
      @user_code = user_code

      @exact_matches = 0
      @number_matches = 0
    end

    def matches
      calculate_matches

      EXACT_MATCH_SIGN * @exact_matches << NUMBER_MATCH_SIGN * @number_matches
    end

    private

    def calculate_matches
      delta = []

      @secret_code.zip(@user_code).each do |secret_code_number, user_code_number|
        if secret_code_number == user_code_number                then @exact_matches  += 1
        elsif (@secret_code - delta).include? user_code_number   then @number_matches += 1
        end

        delta << user_code_number
      end
    end
  end
end