data_names.rb

  module Data
    class Names
      def self.invalid_characters
        ['|']
      end

      @fixture_directory = File.expand_path(File.join(File.dirname(__FILE__), ".", "store"))
      @file_path = '/names/'

      Dir["#{@fixture_directory}#{@file_path}*.txt"].each do |file|
        method_base_name = file.split("/").last.gsub('.txt', '')
        define_singleton_method(method_base_name) do
          open(file).readlines.map do |line|
            filtered_line = invalid_characters.reduce(line) do |text, character|
              text.gsub(character, '')
            end
            filtered_line.strip
          end
        end

        define_singleton_method("#{method_base_name}_trie") do
          return send("#{method_base_name}_trie") if send("#{method_base_name}_trie").present?
          puts "Rebuilding"
          trie = Trie.new
          send(method_base_name).each { |name| trie.add(name) }
          self.class_variable_set("@@#{method_basee_name}_trie", trie)
        end


        define_singleton_method("#{method_base_name}_regex") do
          joined_string = send(method_base_name).join("|")
          Regexp.new("\\b(#{joined_string})\\b", Regexp::IGNORECASE)
        end
      end
    end
  end