class Country < ApplicationRecord
  include TranslatableName
  extend FriendlyId
  friendly_id :name, use: :slugged

  # before_save :format_json_attributes, :timezones, :translations

  belongs_to :region, optional: true
  belongs_to :subregion, optional: true
  has_many :cities, dependent: :restrict_with_error
  has_many :states

  validates :name, presence: true
  validates :code, presence: true, uniqueness: true
  validates :iso2, uniqueness: true, allow_blank: true

  serialize :translations, coder: JSON

  def to_s
    name
  end

  # def localized_name
  #   I18n.t("countries.#{code}")
  # end

  def self.ransackable_attributes(auth_object = nil)
    [ "code", "created_at", "id", "id_value", "name", "region_id", "slug", "updated_at" ]
  end

  def self.ransackable_associations(auth_object = nil)
    [ "cities", "region" ]
  end

  private

  # def format_timezones
  #   return unless timezones.is_a?(String)
  #
  #   # 使用正则替换 => 为 :
  #   json_string = timezones.gsub(/=>/, ":")
  #
  #   # 清理多余的空格
  #   json_string = json_string.gsub(/\s+/, " ").strip
  #
  #   begin
  #     # 验证是否为有效的 JSON
  #     parsed_json = JSON.parse(json_string)
  #     self.timezones = parsed_json.to_json
  #   rescue JSON::ParserError
  #     # 如果转换失败，可以选择:
  #     # 1. 保持原值
  #     # 2. 设置为空数组
  #     # 3. 记录错误日志
  #     Rails.logger.error("Invalid JSON format for country #{id}: #{timezones}")
  #     self.timezones = "[]"
  #   end
  # end
end