require 'timeout'
require 'nokogiri'
require 'xpath'

module Capybara
  class CapybaraError < StandardError; end
  class DriverNotFoundError < CapybaraError; end
  class ElementNotFound < CapybaraError; end
  class UnselectNotAllowed < CapybaraError; end
  class NotSupportedByDriverError < CapybaraError; end
  class TimeoutError < CapybaraError; end
  class LocateHiddenElementError < CapybaraError; end
  class InfiniteRedirectError < TimeoutError; end

  class << self
    attr_accessor :asset_root, :app_host, :run_server, :default_host
    attr_accessor :server_port
    attr_accessor :default_selector, :default_wait_time, :ignore_hidden_elements
    attr_accessor :save_and_open_page_path

    ##
    #
    # Configure Capybara to suit your needs.
    #
    #     Capybara.configure do |config|
    #       config.run_server = false
    #       config.app_host   = 'http://www.google.com'
    #     end
    #
    # === Configurable options
    #
    # [asset_root = String]               Where static assets are located, used by save_and_open_page
    # [app_host = String]                 The default host to use when giving a relative URL to visit
    # [run_server = Boolean]              Whether to start a Rack server for the given Rack app (Default: true)
    # [default_selector = :css/:xpath]    Methods which take a selector use the given type by default (Default: CSS)
    # [default_wait_time = Integer]       The number of seconds to wait for asynchronous processes to finish (Default: 2)
    # [ignore_hidden_elements = Boolean]  Whether to ignore hidden elements on the page (Default: false)
    #
    # === DSL Options
    #
    # when using capybara/dsl, the following options are also available:
    #
    # [default_driver = Symbol]           The name of the driver to use by default. (Default: :rack_test)
    # [javascript_driver = Symbol]        The name of a driver to use for JavaScript enabled tests. (Default: :selenium)
    #
    def configure
      yield self
    end

    ##
    #
    # Register a new driver for Capybara.
    #
    #     Capybara.register_driver :rack_test do |app|
    #       Capybara::Driver::RackTest.new(app)
    #     end
    #
    # @param [Symbol] name                    The name of the new driver
    # @yield [app]                            This block takes a rack app and returns a Capybara driver
    # @yieldparam [<Rack>] app                The rack application that this driver runs agains. May be nil.
    # @yieldreturn [Capybara::Driver::Base]   A Capybara driver instance
    #
    def register_driver(name, &block)
      drivers[name] = block
    end

    def drivers
      @drivers ||= {}
    end

    def deprecate(method, alternate_method)
      warn "DEPRECATED: ##{method} is deprecated, please use ##{alternate_method} instead"
    end
  end

  autoload :Server,     'capybara/server'
  autoload :Session,    'capybara/session'
  autoload :Node,       'capybara/node'
  autoload :Document,   'capybara/node'
  autoload :Element,    'capybara/node'
  autoload :Selector,   'capybara/selector'
  autoload :VERSION,    'capybara/version'

  module Driver
    autoload :Base,     'capybara/driver/base'
    autoload :Node,     'capybara/driver/node'
    autoload :RackTest, 'capybara/driver/rack_test_driver'
    autoload :Celerity, 'capybara/driver/celerity_driver'
    autoload :Culerity, 'capybara/driver/culerity_driver'
    autoload :Selenium, 'capybara/driver/selenium_driver'
  end
end

Capybara.configure do |config|
  config.run_server = true
  config.default_selector = :css
  config.default_wait_time = 2
  config.ignore_hidden_elements = false
end

Capybara.register_driver :rack_test do |app|
  Capybara::Driver::RackTest.new(app)
end

Capybara.register_driver :celerity do |app|
  Capybara::Driver::Culerity.new(app)
end

Capybara.register_driver :culerity do |app|
  Capybara::Driver::Culerity.new(app)
end

Capybara.register_driver :selenium do |app|
  Capybara::Driver::Selenium.new(app)
end