feat: ensure that only one room is open per browser

src/components/base/index.test.ts

@@ -45,6 +45,8 @@ describe('BaseComponent', () => {
   let DummyComponentInstance: DummyComponent;
 
   beforeEach(() => {
+    console.error = jest.fn();
+
     jest.clearAllMocks();
     DummyComponentInstance = new DummyComponent();
   });

src/core/launcher/index.test.ts

@@ -40,11 +40,13 @@ describe('Launcher', () => {
   let LauncherInstance: Launcher;
 
   beforeEach(() => {
+    console.warn = jest.fn();
+    console.error = jest.fn();
+    console.log = jest.fn();
+
     jest.clearAllMocks();
 
     LauncherInstance = new Launcher(DEFAULT_INITIALIZATION_MOCK);
-    console.error = jest.fn();
-    console.log = jest.fn();
   });
 
   test('should be defined', () => {
@@ -449,4 +451,19 @@ describe('Launcher Facade', () => {
     expect(LauncherFacadeInstance).toHaveProperty('addComponent');
     expect(LauncherFacadeInstance).toHaveProperty('removeComponent');
   });
+
+  test('should return the same instance if already initialized', () => {
+    const instance = Facade(DEFAULT_INITIALIZATION_MOCK);
+    const instance2 = Facade(DEFAULT_INITIALIZATION_MOCK);
+
+    expect(instance).toStrictEqual(instance2);
+  });
+
+  test('should return different instances if it`s destroyed', () => {
+    const instance = Facade(DEFAULT_INITIALIZATION_MOCK);
+    instance.destroy();
+    const instance2 = Facade(DEFAULT_INITIALIZATION_MOCK);
+
+    expect(instance).not.toStrictEqual(instance2);
+  });
 });

src/core/launcher/index.ts

@@ -128,6 +128,9 @@ export class Launcher extends Observable implements DefaultLauncher {
     this.realtime.leave();
     this.realtime = undefined;
     this.isDestroyed = true;
+
+    // clean window object
+    window.SUPERVIZ = undefined;
   };
 
   /**
@@ -353,8 +356,22 @@ export class Launcher extends Observable implements DefaultLauncher {
  * @returns {LauncherFacade}
  */
 export default (options: LauncherOptions): LauncherFacade => {
+  if (window.SUPERVIZ) {
+    console.warn('[SUPERVIZ] Room already initialized');
+
+    return {
+      destroy: window.SUPERVIZ.destroy,
+      subscribe: window.SUPERVIZ.subscribe,
+      unsubscribe: window.SUPERVIZ.unsubscribe,
+      addComponent: window.SUPERVIZ.addComponent,
+      removeComponent: window.SUPERVIZ.removeComponent,
+    };
+  }
+
   const launcher = new Launcher(options);
 
+  window.SUPERVIZ = launcher;
+
   return {
     destroy: launcher.destroy,
     subscribe: launcher.subscribe,

src/shims.d.ts

@@ -1,7 +1,9 @@
 import { SuperVizCdn } from './common/types/cdn.types';
+import { Launcher } from './core/launcher';
 
 declare global {
   interface Window {
     SuperVizRoom: SuperVizCdn;
+    SUPERVIZ: Launcher;
   }
 }