Add socket.io with authentication and start rebuilding the device list.

lib/db/api.js

@@ -1,16 +1,30 @@
 var r = require('rethinkdb')
 
 var db = require('./')
+var wire = require('../wire')
+var wireutil = require('../util/wireutil')(wire)
 
 module.exports.saveUserAfterLogin = function(user) {
-  return db.run(r.table('users').insert({
-      email: user.email
-    , name: user.name
-    , lastLogin: r.now()
-    }
-  , {
-      upsert: true
+  return db.run(r.table('users').get(user.email).update({
+      name: user.name
+    , lastLoggedInAt: r.now()
     }))
+    .then(function(stats) {
+      if (stats.skipped) {
+        return db.run(r.table('users').insert({
+          email: user.email
+        , name: user.name
+        , group: wireutil.makePrivateChannel()
+        , lastLoggedInAt: r.now()
+        , createdAt: r.now()
+        }))
+      }
+      return stats
+    })
+}
+
+module.exports.loadUser = function(email) {
+  return db.run(r.table('users').get(email))
 }
 
 module.exports.saveDeviceLog = function(serial, entry) {