the one-page wonder (url shortener)

require 'redic'
require 'watts'
require 'hoshi'

class ShortLink < Watts::App
        class Hello < Watts::Resource
                def redis
                        @redis ||= Redic.new 'redis://localhost:6379'
                end

                get {
                        count = redis.call('get', 'url:counter').to_i
                        b = Hoshi::View(:html5) {
                                doctype
                                html {
                                        body {
                                                h1 'Shorten Link'
                                                form(method: 'post') {
                                                        input(type: 'text', name: 'url', placeholder: 'type or paste your url here')
                                                        input(type: 'submit')
                                                }
                                                p "#{count} link(s) shortened so far."
                                        }
                                }
                        }
                        [200, {'Content-type' => 'text/html'}, [b]]
                }

                post {
                        p = request.params
                        u = p['url']
                        n = redis.call('incr', 'url:counter').to_i
                        s = n.to_s(36)
                        redis.call('set', "url:#{s}", u)
                        b = Hoshi::View(:html5) {
                                doctype
                                html {
                                        body {
                                                h1 'Your link has been shortened'
                                                a(href: "http://localhost:8080/#{s}") { safe "http://localhost:8080/#{s}" }
                                        }
                                }
                        }
"shortlink.ru" 67L, 1392C