DashboardScene: Reload when someone else saves changes (#81855)

* DashboardScene: Reload when someone else saves changes

* Update public/app/features/dashboard-scene/pages/DashboardScenePage.tsx

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

* Fixes

---------

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

.betterer.results

@@ -2582,7 +2582,9 @@ exports[`better eslint`] = {
       [0, 0, 0, "Use data-testid for E2E selectors instead of aria-label", "0"]
     ],
     "public/app/features/dashboard-scene/pages/DashboardScenePage.tsx:5381": [
-      [0, 0, 0, "Do not use any type assertions.", "0"]
+      [0, 0, 0, "Do not use any type assertions.", "0"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "1"],
+      [0, 0, 0, "Do not use any type assertions.", "2"]
     ],
     "public/app/features/dashboard-scene/panel-edit/PanelDataPane/PanelDataPane.tsx:5381": [
       [0, 0, 0, "Do not use any type assertions.", "0"]

public/app/features/dashboard-scene/pages/DashboardScenePage.test.tsx

@@ -1,5 +1,6 @@
 import { act, fireEvent, render, screen } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
+import { cloneDeep } from 'lodash';
 import React from 'react';
 import { TestProvider } from 'test/helpers/TestProvider';
 import { getGrafanaContextMock } from 'test/mocks/getGrafanaContextMock';
@@ -7,11 +8,12 @@ import { getGrafanaContextMock } from 'test/mocks/getGrafanaContextMock';
 import { PanelProps } from '@grafana/data';
 import { getPanelPlugin } from '@grafana/data/test/__mocks__/pluginMocks';
 import { config, getPluginLinkExtensions, locationService, setPluginImportUtils } from '@grafana/runtime';
+import { Dashboard } from '@grafana/schema';
 import { getRouteComponentProps } from 'app/core/navigation/__mocks__/routeProps';
-
+import { DashboardLoaderSrv, setDashboardLoaderSrv } from 'app/features/dashboard/services/DashboardLoaderSrv';
-import { setupLoadDashboardMock } from '../utils/test-utils';
 
 import { DashboardScenePage, Props } from './DashboardScenePage';
+import { getDashboardScenePageStateManager } from './DashboardScenePageStateManager';
 
 jest.mock('@grafana/runtime', () => ({
   ...jest.requireActual('@grafana/runtime'),
@@ -32,7 +34,7 @@ function setup() {
   const props: Props = {
     ...getRouteComponentProps(),
   };
-  props.match.params.uid = 'd10';
+  props.match.params.uid = 'my-dash-uid';
 
   const renderResult = render(
     <TestProvider grafanaContext={context}>
@@ -40,12 +42,22 @@ function setup() {
     </TestProvider>
   );
 
-  return { renderResult, context };
+  const rerender = (newProps: Props) => {
+    renderResult.rerender(
+      <TestProvider grafanaContext={context}>
+        <DashboardScenePage {...newProps} />
+      </TestProvider>
+    );
+  };
+
+  return { rerender, context, props };
 }
 
-const simpleDashboard = {
+const simpleDashboard: Dashboard = {
   title: 'My cool dashboard',
-  uid: '10d',
+  uid: 'my-dash-uid',
+  schemaVersion: 30,
+  version: 1,
   panels: [
     {
       id: 1,
@@ -94,10 +106,20 @@ setPluginImportUtils({
   getPanelPluginFromCache: (id: string) => undefined,
 });
 
+const loadDashboardMock = jest.fn();
+
+setDashboardLoaderSrv({
+  loadDashboard: loadDashboardMock,
+  // disabling type checks since this is a test util
+  // eslint-disable-next-line @typescript-eslint/consistent-type-assertions
+} as unknown as DashboardLoaderSrv);
+
 describe('DashboardScenePage', () => {
   beforeEach(() => {
     locationService.push('/');
-    setupLoadDashboardMock({ dashboard: simpleDashboard, meta: {} });
+    getDashboardScenePageStateManager().clearDashboardCache();
+    loadDashboardMock.mockClear();
+    loadDashboardMock.mockResolvedValue({ dashboard: simpleDashboard, meta: {} });
     // hacky way because mocking autosizer does not work
     Object.defineProperty(HTMLElement.prototype, 'offsetHeight', { configurable: true, value: 1000 });
     Object.defineProperty(HTMLElement.prototype, 'offsetWidth', { configurable: true, value: 1000 });
@@ -117,6 +139,27 @@ describe('DashboardScenePage', () => {
     expect(await screen.findByText('Content B')).toBeInTheDocument();
   });
 
+  it('routeReloadCounter should trigger reload', async () => {
+    const { rerender, props } = setup();
+
+    await waitForDashbordToRender();
+
+    expect(await screen.findByTitle('Panel A')).toBeInTheDocument();
+
+    const updatedDashboard = cloneDeep(simpleDashboard);
+    updatedDashboard.version = 11;
+    updatedDashboard.panels![0].title = 'Updated title';
+
+    getDashboardScenePageStateManager().clearDashboardCache();
+    loadDashboardMock.mockResolvedValue({ dashboard: updatedDashboard, meta: {} });
+
+    props.history.location.state = { routeReloadCounter: 1 };
+
+    rerender(props);
+
+    expect(await screen.findByTitle('Updated title')).toBeInTheDocument();
+  });
+
   it('Can inspect panel', async () => {
     setup();
 

public/app/features/dashboard-scene/pages/DashboardScenePage.tsx

@@ -12,9 +12,11 @@ import { getDashboardScenePageStateManager } from './DashboardScenePageStateMana
 
 export interface Props extends GrafanaRouteComponentProps<DashboardPageRouteParams, DashboardPageRouteSearchParams> {}
 
-export function DashboardScenePage({ match, route, queryParams }: Props) {
+export function DashboardScenePage({ match, route, queryParams, history }: Props) {
   const stateManager = getDashboardScenePageStateManager();
   const { dashboard, isLoading, loadError } = stateManager.useState();
+  // After scene migration is complete and we get rid of old dashboard we should refactor dashboardWatcher so this route reload is not need
+  const routeReloadCounter = (history.location.state as any)?.routeReloadCounter;
 
   useEffect(() => {
     stateManager.loadDashboard({
@@ -26,7 +28,7 @@ export function DashboardScenePage({ match, route, queryParams }: Props) {
     return () => {
       stateManager.clearState();
     };
-  }, [stateManager, match.params.uid, route.routeName, queryParams.folderUid]);
+  }, [stateManager, match.params.uid, route.routeName, queryParams.folderUid, routeReloadCounter]);
 
   if (!dashboard) {
     return (

public/app/features/dashboard-scene/pages/DashboardScenePageStateManager.ts

@@ -80,7 +80,6 @@ export class DashboardScenePageStateManager extends StateManagerBase<DashboardSc
           break;
         default:
           rsp = await dashboardLoaderSrv.loadDashboard('db', '', uid);
-
           if (route === DashboardRoutes.Embedded) {
             rsp.meta.isEmbedded = true;
           }
@@ -188,6 +187,10 @@ export class DashboardScenePageStateManager extends StateManagerBase<DashboardSc
   public setDashboardCache(cacheKey: string, dashboard: DashboardDTO) {
     this.dashboardCache = { dashboard, ts: Date.now(), cacheKey };
   }
+
+  public clearDashboardCache() {
+    this.dashboardCache = undefined;
+  }
 }
 
 let stateManager: DashboardScenePageStateManager | null = null;

public/app/features/dashboard-scene/scene/DashboardScene.tsx

@@ -23,6 +23,7 @@ import appEvents from 'app/core/app_events';
 import { getNavModel } from 'app/core/selectors/navModel';
 import { getDashboardSrv } from 'app/features/dashboard/services/DashboardSrv';
 import { DashboardModel } from 'app/features/dashboard/state';
+import { dashboardWatcher } from 'app/features/live/dashboard/dashboardWatcher';
 import { VariablesChanged } from 'app/features/variables/types';
 import { DashboardDTO, DashboardMeta, SaveDashboardResponseDTO } from 'app/types';
 
@@ -136,6 +137,10 @@ export class DashboardScene extends SceneObjectBase<DashboardSceneState> {
       this.startTrackingChanges();
     }
 
+    if (!this.state.meta.isEmbedded && this.state.uid) {
+      dashboardWatcher.watch(this.state.uid);
+    }
+
     const clearKeyBindings = setupKeyboardShortcuts(this);
     const oldDashboardWrapper = new DashboardModelCompatibilityWrapper(this);
 
@@ -149,6 +154,7 @@ export class DashboardScene extends SceneObjectBase<DashboardSceneState> {
       this.stopTrackingChanges();
       this.stopUrlSync();
       oldDashboardWrapper.destroy();
+      dashboardWatcher.leave();
     };
   }
 

public/app/features/dashboard-scene/utils/DashboardModelCompatibilityWrapper.ts

@@ -228,6 +228,10 @@ export class DashboardModelCompatibilityWrapper {
     this.events.removeAllListeners();
     this._subs.unsubscribe();
   }
+
+  public hasUnsavedChanges() {
+    return this._scene.state.isDirty;
+  }
 }
 
 class PanelCompatibilityWrapper {