plugin.rb

# name: discourse-nationalflags
# about: Display National Flags from User's home countries.
# version: 2.0
# authors: Neil Ebrey <neil.ebrey@gmail.com>, Rob Barrow <merefield@gmail.com>
# url: https://github.com/Ebsy/discourse-nationalflags

enabled_site_setting :nationalflag_enabled

PLUGIN_NAME = "discourse-nationalflags"

DiscoursePluginRegistry.serialized_current_user_fields << "nationalflag_iso"

after_initialize do

  module ::DiscourseNationalFlags
    class Engine < ::Rails::Engine
      engine_name "discourse_national_flags"
      isolate_namespace DiscourseNationalFlags
    end
  end

  load File.expand_path('../lib/flags.rb', __FILE__)
  load File.expand_path('../lib/flag_list.rb', __FILE__)

  Discourse::Application.routes.append do
    mount ::DiscourseNationalFlags::Engine, at: 'natflags'
  end

  load File.expand_path('../controllers/flags.rb', __FILE__)

  ::DiscourseNationalFlags::Engine.routes.draw do
    get "/flags" => "flags#flags"
  end

  public_user_custom_fields_setting = SiteSetting.public_user_custom_fields
  if public_user_custom_fields_setting.empty?
    SiteSetting.set("public_user_custom_fields", "nationalflag_iso")
  elsif public_user_custom_fields_setting !~ /nationalflag_iso/
    SiteSetting.set(
      "public_user_custom_fields",
      [SiteSetting.public_user_custom_fields, "nationalflag_iso"].join("|")
    )
  end

  User.register_custom_field_type('nationalflag_iso', :text)

  register_editable_user_custom_field :nationalflag_iso if defined? register_editable_user_custom_field
  
  if SiteSetting.nationalflag_enabled then
    add_to_serializer(:post, :user_signature, false) {
      object.user.custom_fields['nationalflag_iso']
    }

    # I guess this should be the default @ discourse. PR maybe?
    add_to_serializer(:user, :custom_fields, false) {
      if object.custom_fields == nil then
        {}
      else
        object.custom_fields
      end
    }
  end
end

register_asset "stylesheets/nationalflags.scss"

DiscourseEvent.on(:custom_wizard_ready) do
  if defined?(CustomWizard) == 'constant' && CustomWizard.class == Module
    CustomWizard::Field.register('national-flag', 'discourse-nationalflags', ['components', 'templates'])
    CustomWizard::UpdateValidator.add_field_validator(0, 'national-flag') do |field, value, updater|
      field_id = field.id.to_s
      list = ::DiscourseNationalFlags::FlagList.list
      map_codes = list.map(&:code)
      unless map_codes.include?(value)
        updater.errors.add(field.id, I18n.t('wizard.field.flag_not_exists'))
      end
    end
  end
end