Show update button and dialog in settings view

dashboard/src/views/settings.js

@@ -8,6 +8,7 @@ angular.module('Application').controller('SettingsController', ['$scope', '$loca
     $scope.config = Client.getConfig();
     $scope.backupConfig = {};
     $scope.appstoreConfig = {};
+    $scope.installedApps = Client.getInstalledApps();
 
     $scope.lastBackup = null;
     $scope.backups = [];
@@ -76,6 +77,45 @@ angular.module('Application').controller('SettingsController', ['$scope', '$loca
         }
     };
 
+    $scope.update = {
+        error: {},
+        busy: false,
+
+        show: function (form) {
+            $scope.update.error.generic = null;
+            $scope.update.busy = false;
+
+            form.$setPristine();
+            form.$setUntouched();
+
+            if (!$scope.config.update.box.sourceTarballUrl) {
+                $('#setupSubscriptionModal').modal('show');
+            } else {
+                $('#updateModal').modal('show');
+            }
+        },
+
+        submit: function () {
+            $scope.update.error.generic = null;
+            $scope.update.busy = true;
+
+            Client.update(function (error) {
+                if (error) {
+                    if (error.statusCode === 409) {
+                        $scope.update.error.generic = 'Please try again later. The Cloudron is creating a backup at the moment.';
+                    } else {
+                        $scope.update.error.generic = error.message;
+                        console.error('Unable to update.', error);
+                    }
+                    $scope.update.busy = false;
+                    return;
+                }
+
+                window.location.href = '/update.html';
+            });
+        }
+    };
+
     $scope.planChange = {
         busy: false,
         error: {},