module JamRuby
  class Region < ActiveRecord::Base

    self.table_name = 'regions'

    def self.get_all(country)
      self.where(countrycode: country).order('regionname asc').all
    end

    def self.find_region_codes
      gem_dir = Gem::Specification.find_by_name("jam_ruby").gem_dir
      File.join(gem_dir, 'lib', 'jam_ruby', 'geodata', 'region_codes.csv')
    end

    def self.import_from_region_codes(file = find_region_codes)
      self.delete_all
      File.open(file, 'r:ISO-8859-1') do |io|
        csv = ::CSV.new(io, {encoding: 'ISO-8859-1', headers: false})
        csv.each do |row|
          rr = Region.new
          rr.countrycode = row[0]
          rr.region = row[1]
          rr.regionname = row[2]
          rr.save
        end
      end
    end
  end
end