# frozen_string_literal: true

require "yaml" unless defined?(YAML)

module Lite
  module Address
    class List

      attr_reader :country

      def initialize(country)
        @country = country
      end

      def cardinal_codes
        @cardinal_codes ||= cardinal_types.invert
      end

      def cardinal_types
        @cardinal_types ||= begin
          file_path = File.expand_path("types/cardinal.yml", File.dirname(__FILE__))
          YAML.load_file(file_path)
        end
      end

      def street_types
        @street_types ||= begin
          file_path = File.expand_path("types/street.yml", File.dirname(__FILE__))
          YAML.load_file(file_path)
        end
      end

      def street_type_regexps
        @street_type_regexps ||= street_types.each_with_object({}) do |(type, abbr), hash|
          hash[abbr] = /\b(?:#{abbr}|#{::Regexp.quote(type)})\b/ix
        end
      end

      def subdivision_codes
        @subdivision_codes ||= subdivision_names.invert
      end

      def subdivision_map
        @subdivision_map ||= country.subdivisions.transform_values(&:name)
      end

      def subdivision_names
        @subdivision_names ||= country.subdivisions.each_with_object({}) do |(code, sub), hash|
          hash[sub.name.downcase] = code
        end
      end

      def unit_abbr_regexps
        # http://pe.usps.com/text/pub28/pub28c2_003
        @unit_abbr_regexps ||= unit_abbr_numbered_regexps.merge(unit_abbr_unnumbered_regexps)
      end

      def unit_abbr_numbered_regexps
        @unit_abbr_numbered_regexps ||= {
          "Apt" => /(?:ap|dep)(?:ar)?t(?:me?nt)?/i,
          "PO Box" => /p\W*[om]\W*b(?:ox)?/i,
          "Bldg" => /bu?i?ldi?n?g/i,
          "Dept" => /dep(artmen)?t/i,
          "Floor" => /flo*r?/i,
          "Hanger" => /ha?nga?r/i,
          "Lot" => /lo?t/i,
          "Room" => /ro*m/i,
          "Pier" => /pier/i,
          "Slip" => /slip/i,
          "Space" => /spa?ce?/i,
          "Stop" => /stop/i,
          "Drawer" => /drawer/i,
          "Suite" => /su?i?te/i,
          "Trailer" => /tra?i?le?r/i,
          "Box" => /\w*(?<!po\W)box/i,
          "Unit" => /uni?t/i
        }
      end

      def unit_abbr_unnumbered_regexps
        @unit_abbr_unnumbered_regexps ||= {
          "Basement" => /ba?se?me?n?t/i,
          "Front" => /fro?nt/i,
          "Lobby" => /lo?bby/i,
          "Lower" => /lowe?r/i,
          "Office" => /off?i?ce?/i,
          "PH" => /pe?n?t?ho?u?s?e?/i,
          "Rear" => /rear/i,
          "Side" => /side/i,
          "Upper" => /uppe?r/i
        }
      end

      alias state_codes subdivision_codes
      alias state_map subdivision_map
      alias state_names subdivision_names

    end
  end
end