# frozen_string_literal: true

module Wayfarer
  module Networking
    class Ferrum
      def self.renew_on
        [::Ferrum::DeadBrowserError]
      end

      attr_reader :browser

      def initialize
        @browser = instantiate_browser
      end

      def fetch(url)
        browser.goto(url)
        Result::Success.new(live(nil))
      end

      def live(_)
        Wayfarer::Page.new(url: browser.current_url,
                           body: body,
                           status_code: browser.network.response.status,
                           headers: browser.network.response.headers)
      end

      def body
        browser.body
      end

      def renew
        free
        @browser = instantiate_browser
      end

      def free
        browser&.reset
        browser&.quit
        @browser = nil
        @capybara = nil
      end

      def capybara
        @capybara ||= instantiate_capybara_driver
      end

    private

      def instantiate_browser
        ::Ferrum::Browser.new(Wayfarer.config.ferrum_options).tap do |browser|
          browser.headers.set(Wayfarer.config.http_headers)
        end
      end

      def instantiate_capybara_driver
        Capybara.run_server = false
        Capybara.current_driver = :cuprite

        capybara_driver = Capybara::Cuprite::Driver.new(nil)
        capybara_driver.instance_variable_set(:@capybara, browser)

        session = Capybara::Session.new(:cuprite, nil)
        session.instance_variable_set(:@driver, capybara_driver)

        session
      end
    end
  end
end