Rename the 'app' folder to 'res', because it can currently contain many apps.

res/auth/scripts/controllers/SignInCtrl.js

@@ -0,0 +1,37 @@
+define(['./module'], function(mod) {
+  mod.controller('SignInCtrl', ['$scope', '$http', function($scope, $http) {
+    $scope.error = null
+
+    $scope.submit = function() {
+      var data = {
+        name: $scope.signin.name.$modelValue
+      , email: $scope.signin.email.$modelValue
+      }
+      $scope.invalid = false
+      $http.post('/api/v1/auth', data)
+        .success(function(response) {
+          $scope.error = null
+          location.replace(response.redirect)
+        })
+        .error(function(response) {
+          switch (response.error) {
+            case 'ValidationError':
+              $scope.error = {
+                $invalid: true
+              }
+              break
+            case 'InvalidCredentialsError':
+              $scope.error = {
+                $incorrect: true
+              }
+              break
+            default:
+              $scope.error = {
+                $server: true
+              }
+              break
+          }
+        })
+    }
+  }])
+})