Add in process-caching, example links

app.js

@@ -44,7 +44,12 @@ app.get('*', function(req,res,next) {
 });
 
 app.get('/', function(req, res) {
-  res.render('index', { error: req.flash('search-error') });
+  var samples = [
+    {artist: "Aesop Rock", album: "None Shall Pass", url: '/google/album/Bpnz47tzvmp3p46ht3syerwyvva'},
+    {artist: "Hozier", album: "self-titled album", url: '/google/album/Bd3mxcy3otokg4yc45qktq7l35q'},
+    {artist: "Daft Punk", album: "Discovery", url: '/google/album/B4t6yqqvhnb2hy4st4uisjrcsrm'}
+  ];
+  res.render('index', { samples: samples, error: req.flash('search-error') });
 });
 
 app.post('/search', search);

lib/services/spotify.js

@@ -73,6 +73,7 @@ module.exports.search = function(data) {
 
     if (!data[type + "s"].items[0]) {
       deferred.resolve({service:"spotify"});
+      return;
     }
 
     var item = data[type + "s"].items[0];

routes/share.js

@@ -4,10 +4,13 @@ var Q = require('q');
 
 var services = {};
 
+var cache = {};
+
 require("fs").readdirSync(path.join(__dirname, "..", "lib", "services")).forEach(function(file) {
   var service = require("../lib/services/" + file);
   if (service.search) {
     services[service.id] = service;
+    cache[service.id] = {};
   }
 });
 
@@ -17,6 +20,11 @@ module.exports = function(req, res) {
   var itemId = req.params.id;
   var promises = [];
 
+  if (cache[serviceId][type + "-" + itemId]) {
+    res.render(type, {items: cache[serviceId][type + "-" + itemId]});
+    return;
+  }
+
   services[serviceId].lookupId(itemId, type).then(function(item) {
     for (var id in services) {
       if (id != serviceId) {
@@ -38,7 +46,7 @@ module.exports = function(req, res) {
       });
 
       items.unshift(item);
-
+      cache[serviceId][item.type + "-" + item.id] = items;
       res.render(type, {items: items});
     });
   });

views/index.ejs

@@ -25,7 +25,7 @@
 
         <form role="form" method="post" action="/search">
         <div class="input-group input-group-lg">
-          <input type="text" name="url" placeholder="Paste link here" class="form-control">
+          <input type="text" name="url" placeholder="Paste link here" class="form-control" autofocus>
           <span class="input-group-btn">
             <input type="submit" class="btn btn-lg btn-custom" value="Share Music">
           </span>
@@ -38,7 +38,8 @@
       <div class="col-md-6 col-md-offset-3">
         <p>Make sharing from music services better.
           We match album and track links from Rdio, Spotify, Deezer, Beats Music, Google Music and iTunes and give you back a link with all of them.</p>
-        <p><a href="/google/album/B3qrtsvk5s3piwyla76sk6qyxny">Here's a sample</a>.</p>
+        <% var sample = samples[Math.floor(Math.random() * samples.length)] %>
+        <p><a href="<%= sample.url %>">Here's an example with <%= sample.artist %>'s <%= sample.album %></a>.</p>
       </div>
     </div>
   </div>