Make Store initialization independent of module order

Summary: Changed some imports, and again the Flipper initialisation broke. Refactored the store initialization to create nowhere module local constants, which prevents generally against module loading issues, making it possible to load all code first, and then intialise things through the `init()` method, which should make Flipper initialisation a lot more robust to changes

Reviewed By: passy

Differential Revision: D29233603

fbshipit-source-id: 322cb87cba23228b1d7a88634b7b3995e27cc277

desktop/app/src/dispatcher/__tests__/iOSDevice.node.tsx

@@ -12,11 +12,11 @@ import {
   getAllPromisesForQueryingDevices,
 } from '../iOSDevice';
 import configureStore from 'redux-mock-store';
-import reducers, {State} from '../../reducers/index';
+import {State, createRootReducer} from '../../reducers/index';
 import {getInstance} from '../../fb-stubs/Logger';
 
 const mockStore = configureStore<State, {}>([])(
-  reducers(undefined, {type: 'INIT'}),
+  createRootReducer()(undefined, {type: 'INIT'}),
 );
 const logger = getInstance();
 

desktop/app/src/dispatcher/__tests__/plugins.node.tsx

@@ -20,7 +20,7 @@ import {BundledPluginDetails, InstalledPluginDetails} from 'flipper-plugin-lib';
 import path from 'path';
 import {remote} from 'electron';
 import {FlipperPlugin} from '../../plugin';
-import reducers, {State} from '../../reducers/index';
+import {createRootReducer, State} from '../../reducers/index';
 import {getInstance} from '../../fb-stubs/Logger';
 import configureStore from 'redux-mock-store';
 import {TEST_PASSING_GK, TEST_FAILING_GK} from '../../fb-stubs/GK';
@@ -33,7 +33,7 @@ import loadDynamicPlugins from '../../utils/loadDynamicPlugins';
 const loadDynamicPluginsMock = mocked(loadDynamicPlugins);
 
 const mockStore = configureStore<State, {}>([])(
-  reducers(undefined, {type: 'INIT'}),
+  createRootReducer()(undefined, {type: 'INIT'}),
 );
 const logger = getInstance();
 

desktop/app/src/init.tsx

@@ -24,7 +24,7 @@ import {initLauncherHooks} from './utils/launcher';
 import {setPersistor} from './utils/persistor';
 import React from 'react';
 import path from 'path';
-import {store} from './store';
+import {getStore} from './store';
 import {cache} from '@emotion/css';
 import {CacheProvider} from '@emotion/react';
 import {enableMapSet} from 'immer';
@@ -59,8 +59,6 @@ if (process.env.NODE_ENV === 'development' && os.platform() === 'darwin') {
   global.electronRequire('mac-ca');
 }
 
-const logger = initLogger(store);
-
 enableMapSet();
 
 GK.init();
@@ -127,7 +125,7 @@ class AppFrame extends React.Component<
       </Layout.Container>
     ) : (
       <_LoggerContext.Provider value={logger}>
-        <Provider store={store}>
+        <Provider store={getStore()}>
           <CacheProvider value={cache}>
             <TooltipProvider>
               <PopoverProvider>
@@ -181,6 +179,18 @@ function setProcessState(store: Store) {
 }
 
 function init() {
+  const store = getStore();
+  const logger = initLogger(store);
+
+  // rehydrate app state before exposing init
+  const persistor = persistStore(store, undefined, () => {
+    // Make sure process state is set before dispatchers run
+    setProcessState(store);
+    dispatcher(store, logger);
+  });
+
+  setPersistor(persistor);
+
   initializeFlipperLibImplementation(store, logger);
   _setGlobalInteractionReporter((r) => {
     logger.track('usage', 'interaction', r);
@@ -213,18 +223,13 @@ function init() {
   );
 }
 
-// rehydrate app state before exposing init
+setImmediate(() => {
-const persistor = persistStore(store, undefined, () => {
+  // make sure all modules are loaded
-  // Make sure process state is set before dispatchers run
+  // @ts-ignore
-  setProcessState(store);
+  window.flipperInit = init;
-  dispatcher(store, logger);
-  // make init function callable from outside
-  window.Flipper.init = init;
   window.dispatchEvent(new Event('flipper-store-ready'));
 });
 
-setPersistor(persistor);
-
 const CodeBlock = styled(Input.TextArea)({
   ...theme.monospace,
   color: theme.textColorSecondary,

desktop/app/src/reducers/index.tsx

@@ -140,7 +140,8 @@ const launcherSettingsStorage = new LauncherSettingsStorage(
   resolve(launcherConfigDir(), 'flipper-launcher.toml'),
 );
 
-export default combineReducers<State, Actions>({
+export function createRootReducer() {
+  return combineReducers<State, Actions>({
     application,
     connections: persistReducer<DevicesState, Actions>(
       {
@@ -219,3 +220,4 @@ export default combineReducers<State, Actions>({
     pluginDownloads,
     pluginLists,
   });
+}

desktop/app/src/sandy-chrome/appinspect/__tests__/LaunchEmulator.spec.tsx

@@ -13,7 +13,7 @@ import {Provider} from 'react-redux';
 import {createStore} from 'redux';
 import {LaunchEmulatorDialog} from '../LaunchEmulator';
 
-import {rootReducer} from '../../../store';
+import {createRootReducer} from '../../../reducers';
 import {act} from 'react-dom/test-utils';
 import {sleep} from '../../../utils';
 
@@ -24,7 +24,7 @@ jest.mock('../../../devices/AndroidDevice', () => ({
 import {launchEmulator} from '../../../devices/AndroidDevice';
 
 test('Can render and launch android apps', async () => {
-  const store = createStore(rootReducer);
+  const store = createStore(createRootReducer());
   const onClose = jest.fn();
 
   const renderer = render(

desktop/app/src/store.tsx

@@ -9,12 +9,21 @@
 
 import './global';
 import {createStore} from 'redux';
-import reducers, {Actions, State as StoreState, Store} from './reducers/index';
+import {
+  createRootReducer,
+  Actions,
+  State as StoreState,
+  Store,
+} from './reducers/index';
 import {stateSanitizer} from './utils/reduxDevToolsConfig';
 import isProduction from './utils/isProduction';
-import {_SandyPluginDefinition} from 'flipper-plugin';
 
-export const store: Store = createStore<StoreState, Actions, any, any>(
+let store: Store;
+
+function initStore() {
+  const rootReducer = createRootReducer();
+
+  store = createStore<StoreState, Actions, any, any>(
     rootReducer,
     // @ts-ignore Type definition mismatch
     window.__REDUX_DEVTOOLS_EXTENSION__
@@ -25,15 +34,18 @@ export const store: Store = createStore<StoreState, Actions, any, any>(
       : undefined,
   );
 
-export function rootReducer(
-  state: StoreState | undefined,
-  action: Actions,
-): StoreState {
-  return reducers(state, action);
-}
-
   if (!isProduction()) {
     // For debugging purposes only
     // @ts-ignore
     window.flipperStore = store;
   }
+  return store;
+}
+
+// grab store lazily, to not break module loading order...
+export function getStore() {
+  if (!store) {
+    return initStore();
+  }
+  return store;
+}

desktop/app/src/test-utils/MockFlipper.tsx

@@ -9,7 +9,7 @@
 
 import {createStore} from 'redux';
 import BaseDevice from '../devices/BaseDevice';
-import {rootReducer} from '../store';
+import {createRootReducer} from '../reducers';
 import {Store} from '../reducers/index';
 import Client, {ClientQuery, FlipperClientConnection} from '../Client';
 import {buildClientId} from '../utils/clientUtils';
@@ -75,7 +75,7 @@ export default class MockFlipper {
   }
 
   public async init({plugins}: AppOptions = {}) {
-    this._store = createStore(rootReducer);
+    this._store = createStore(createRootReducer());
     this._logger = getInstance();
     this.unsubscribePluginManager = pluginManager(this._store, this._logger, {
       runSideEffectsSynchronously: true,

desktop/app/src/utils/__tests__/info.node.tsx

@@ -9,7 +9,7 @@
 
 import {Store} from '../../reducers/index';
 import {createStore} from 'redux';
-import {rootReducer} from '../../store';
+import {createRootReducer} from '../../reducers';
 import initialize, {getInfo} from '../info';
 import {registerLoadedPlugins} from '../../reducers/plugins';
 import {TestUtils} from 'flipper-plugin';
@@ -37,7 +37,7 @@ describe('info', () => {
   let mockStore: Store;
 
   beforeEach(() => {
-    mockStore = createStore(rootReducer);
+    mockStore = createStore(createRootReducer());
     mockStore.dispatch({type: 'INIT'});
   });
 

desktop/app/src/utils/notifications.tsx

@@ -11,7 +11,7 @@ import {notification, Typography} from 'antd';
 import React from 'react';
 import {ConsoleLogs} from '../chrome/ConsoleLogs';
 import {setStaticView} from '../reducers/connections';
-import {store} from '../store';
+import {getStore} from '../store';
 import {Layout} from '../ui';
 import {v4 as uuid} from 'uuid';
 
@@ -29,7 +29,7 @@ export function showErrorNotification(message: string, description?: string) {
           See{' '}
           <Link
             onClick={() => {
-              store.dispatch(setStaticView(ConsoleLogs));
+              getStore().dispatch(setStaticView(ConsoleLogs));
               notification.close(key);
             }}>
             logs

desktop/plugins/public/databases/__tests__/DatabaseDetailSidebar.node.tsx

@@ -11,7 +11,7 @@ import {render, fireEvent} from '@testing-library/react';
 import React from 'react';
 // TODO T71355623
 // eslint-disable-next-line flipper/no-relative-imports-across-packages
-import reducers, {Store} from '../../../../app/src/reducers';
+import {Store, createRootReducer} from '../../../../app/src/reducers';
 import configureStore from 'redux-mock-store';
 import {Provider} from 'react-redux';
 
@@ -46,7 +46,7 @@ const values: Array<Value> = [
 ];
 
 const mockStore: Store = configureStore([])(
-  reducers(undefined, {type: 'INIT'}),
+  createRootReducer()(undefined, {type: 'INIT'}),
 ) as Store;
 
 beforeEach(() => {

desktop/static/index.dev.html

@@ -86,7 +86,7 @@
             openError('Script failure. Check Chrome console for more info.');
           };
 
-          window.addEventListener('flipper-store-ready', () => global.Flipper.init());
+          window.addEventListener('flipper-store-ready', () => global.flipperInit());
 
           document.body.appendChild(script);
         }

desktop/static/index.html

@@ -15,7 +15,7 @@
       global.electronRequire = window.require;
     </script>
     <script>
-      window.addEventListener('flipper-store-ready', () => global.Flipper.init());
+      window.addEventListener('flipper-store-ready', () => global.flipperInit());
     </script>
     <script src="bundle.js"></script>
   </body>