Sinatra Journey

router.rb

require 'journey'
require 'forwardable'

class Router
  extend Forwardable
  def_delegator :router, :call
  def_delegator :formatter, :generate
  
  def add_route(app, path, conditions={}, defaults={}, name)
    routes.add_route(
      app,
      pattern(expression(path)),
      conditions, 
      defaults, 
      name
    )
  end
  
  private
  
  def pattern(expr)
    Journey::Path::Pattern.new(expr)
  end

  def expression(path)
    Journey::Router::Strexp.new(path, {}, ['/', '.', '?'], false)
  end

  def routes
    @routes ||= Journey::Routes.new
  end
  
  def router
    @router ||= 
      Journey::Router.new(routes, {parameters_key: 'rack.request.query_hash'})
  end
  
  def formatter
    @formatter ||= Journey::Formatter.new(routes)
  end
end