require 'active_support/concern'

module Softwear::Lib
  module Spec
    extend ActiveSupport::Concern

    module CapybaraHelpers
      def wait_for_ajax
        begin
          Timeout.timeout(Capybara.default_wait_time) do
            wait_for_jquery
            loop until finished_all_ajax_requests?
          end
        rescue
          sleep 0.1
        end
      end

      def finished_all_ajax_requests?
        page.evaluate_script('jQuery.active').zero?
      end

      def wait_for_redirect
        original_url = current_path
        until current_path != original_url
          sleep(0.1)
        end
      end

      def wait_for_jquery
        until page.evaluate_script('jQuery.active') == 0
          sleep(0.1)
        end
      end

      def accept_alert
        page.evaluate_script('window.confirm = function() { return true; }')
        yield
      end

      def dismiss_alert
        page.evaluate_script('window.confirm = function() { return false; }')
        yield
        # Restore existing default
        page.evaluate_script('window.confirm = function() { return true; }')
      end
    end

    module Select2
      def set_select2_field(field, value)
        page.execute_script %Q{$('#{field}').select2('val', '#{value}')}
      end

      def select2_search(value, options)
        label = find_label_by_text(options[:from])
        within label.first(:xpath,'.//..') do
          options[:from] = "##{find('.select2-container')['id']}"
        end
        targetted_select2_search(value, options)
      end

      def targetted_select2_search(value, options)
        page.execute_script %Q{$('#{options[:from]}').select2('open')}
        page.execute_script "$('#{options[:dropdown_css]} input.select2-input').val('#{value}').trigger('keyup-change');"
        select_select2_result(value)
      end

      def select2(value, options)
        label = find_label_by_text(options[:from])

        within label.first(:xpath,'.//..') do
          options[:from] = "##{find('.select2-container')['id']}"
        end
        targetted_select2(value, options)
      end

      def select2_no_label value, options={}
        raise "Must pass a hash containing 'from'" if not options.is_a?(Hash) or not options.has_key?(:from)

        placeholder = options[:from]
        # TODO: still need this?
        # minlength = options[:minlength] || 4

        click_link placeholder

        select_select2_result(value)
      end

      def targetted_select2(value, options)
        # find select2 element and click it
        find(options[:from]).find('a').click
        select_select2_result(value)
      end

      def select_select2_result(value)
        # results are in a div appended to the end of the document
        within(:xpath, '//body') do
          page.find('div.select2-result-label', text: %r{#{Regexp.escape(value)}}i).click
        end
      end
    end

    included do
      include Warden::Test::Helpers
      Warden.test_mode!

      RSpec.configure do |config|
        config.include CapybaraHelpers, type: :feature
        config.include Select2, type: :feature
      end
    end

  end
end