module Sidekiq::Web::Router

def delete(path, &) = route(:delete, path, &)

def get(path, &) = route(:get, path, &)

def head(path, &) = route(:head, path, &)

def match(env)
  request_method = env["REQUEST_METHOD"].downcase.to_sym
  path_info = ::Rack::Utils.unescape_path env["PATH_INFO"]
  # There are servers which send an empty string when requesting the root.
  # These servers should be ashamed of themselves.
  path_info = "/" if path_info == ""
  route_cache[request_method].each do |route|
    params = route.match(request_method, path_info)
    if params
      env["rack.route_params"] = params
      return Action.new(env, route.block)
    end
  end
  nil
end

def patch(path, &) = route(:patch, path, &)

def post(path, &) = route(:post, path, &)

def put(path, &) = route(:put, path, &)

def route(*methods, path, &block)
  methods.each do |method|
    raise ArgumentError, "Invalid method #{method}. Must be one of #{@routes.keys.join(",")}" unless route_cache.has_key?(method)
    route_cache[method] << Route.new(method, path, block)
  end
end

def route_cache
  @@routes ||= {get: [], post: [], put: [], patch: [], delete: [], head: []}
end