# frozen_string_literal: true

require "japan_municipality/version"
require "csv"

class JapanMunicipality
  attr_reader :area_code, :prefecture, :subprefecture
  attr_reader :subprefecture_furigana, :municipality, :municipality_furigana
  attr_reader :merger_dissolution_date, :has_merger_dissolution_infomation

  def self.all
    DATA[2..-1].map do |data|
      new(data)
    end
  end

  def initialize(data)
    @area_code = data[0]
    @prefecture = data[1]
    @subprefecture = data[2]
    @subprefecture_furigana = data[3]
    @municipality = data[4]
    @municipality_furigana = data[5]
    @merger_dissolution_date = data[6]
    @has_merger_dissolution_infomation = data[7]
  end

  # https://www.e-stat.go.jp/municipalities/cities/areacode
  CSV_PATH = File.expand_path("../../data/municipalities.csv", __FILE__)
  DATA = CSV.read(CSV_PATH).freeze
  private_constant :CSV_PATH, :DATA
end