app.rb

require 'sinatra'
require 'yaml'
require 'open-uri'
require 'nokogiri'
require 'digest/md5'
require 'time'
require 'json'
require 'haml'
require 'memcached'
require 'dalli'

require File.expand_path(File.join(File.dirname(__FILE__), 'lib/classes/muni'))
require File.expand_path(File.join(File.dirname(__FILE__), 'lib/support/sinatra-dalli'))

DAY = 24 * 60 * 60

enable :logging
set :cache_namespace, "muni"
set :cache_enable, true
set :cache_logging, true

get '/' do
	haml :index
end

get '/muni.json' do
	cache 'arrivals', :expiry => 45 do
		puts "fetching arrivals"
		@@faves ||= YAML.load_file('settings.yml')
		arrivals = Muni.new.arrivals(@@faves)
		arrivals.to_json
	end
end

get '/browse' do
	# cache 1 day
	cache 'routes', :expiry => 1 * DAY do
		@routes = Muni.new.routes
		haml :browse_routes
	end
end

get '/browse/:tag' do |tag|
	cache "route_#{tag}", :expiry => 1 * DAY do
		@route_info = Muni.new.route_info(tag)
		haml :browse_route_info
	end
end

get '/cache.manifest' do
  @cached_files = Dir.glob(File.join('public', 'css', '*.css')) +
    Dir.glob(File.join('public', 'js', '*.js')) +
    Dir.glob(File.join('public', 'fonts', '*.{eot,svg,ttf,woff}'))
  file = @cached_files.pop
  mtime = File.mtime(file)
  @rev_date = @cached_files.inject(mtime) do |latest, file|
    mtime = File.mtime(file)
    (mtime > latest) ? mtime : latest
  end
  erb :cache_manifest
end