class Shoulda::Matchers::ActionController::RouteMatcher

def add_port_to_path(path, port)
  if port
    "https://example.com:#{port}" + path
  else
    path
  end
end

def description
  "route #{method.to_s.upcase} #{path} to/from #{params.inspect}"
end

def failure_message_when_negated
  "Didn't expect to #{description}"
end

def guess_controller_if_necessary(controller)
  params[:controller] ||= controller.controller_path
end

def in_context(context)
  @context = context
  self
end

def initialize(context, method, path, port: nil)
  @context = context
  @method = method
  @path = add_port_to_path(normalize_path(path), port)
  @params = {}
end

def matches?(controller)
  guess_controller_if_necessary(controller)
  route_recognized?
end

def normalize_path(path)
  if path.start_with?('/')
    path
  else
    "/#{path}"
  end
end

def route_recognized?
  context.send(
    :assert_routing,
    { method: method, path: path },
    params,
  )
  true
rescue ::ActionController::RoutingError => e
  @failure_message = e.message
  false
rescue Shoulda::Matchers.assertion_exception_class => e
  @failure_message = e.message
  false
end

def to(*args)
  @params = RouteParams.new(args).normalize
  self
end