✨(frontend) add sentry

In order to monitor the frontend, we are adding
sentry.

CHANGELOG.md

@@ -17,6 +17,7 @@ and this project adheres to
 - ✨(backend) whitelist pod's IP address #443
 - ✨(backend) config endpoint #425
 - ✨(frontend) config endpoint #424
+- ✨(frontend) add sentry #424
 
 ## Changed
 

src/frontend/apps/e2e/__tests__/app-impress/config.spec.ts

@@ -1,5 +1,19 @@
 import { expect, test } from '@playwright/test';
 
+const config = {
+  COLLABORATION_SERVER_URL: 'ws://localhost:4444',
+  ENVIRONMENT: 'development',
+  FRONTEND_THEME: 'dsfr',
+  MEDIA_BASE_URL: 'http://localhost:8083',
+  LANGUAGES: [
+    ['en-us', 'English'],
+    ['fr-fr', 'French'],
+    ['de-de', 'German'],
+  ],
+  LANGUAGE_CODE: 'en-us',
+  SENTRY_DSN: null,
+};
+
 test.describe('Config', () => {
   test('it checks the config api is called', async ({ page }) => {
     const responsePromise = page.waitForResponse(
@@ -12,18 +26,34 @@ test.describe('Config', () => {
     const response = await responsePromise;
     expect(response.ok()).toBeTruthy();
 
-    expect(await response.json()).toStrictEqual({
-      COLLABORATION_SERVER_URL: 'ws://localhost:4444',
-      ENVIRONMENT: 'development',
-      FRONTEND_THEME: 'dsfr',
-      MEDIA_BASE_URL: 'http://localhost:8083',
-      LANGUAGES: [
-        ['en-us', 'English'],
-        ['fr-fr', 'French'],
-        ['de-de', 'German'],
-      ],
-      LANGUAGE_CODE: 'en-us',
-      SENTRY_DSN: null,
+    expect(await response.json()).toStrictEqual(config);
+  });
+
+  test('it checks that sentry is trying to init from config endpoint', async ({
+    page,
+  }) => {
+    await page.route('**/api/v1.0/config/', async (route) => {
+      const request = route.request();
+      if (request.method().includes('GET')) {
+        await route.fulfill({
+          json: {
+            ...config,
+            SENTRY_DSN: 'https://sentry.io/123',
+          },
+        });
+      } else {
+        await route.continue();
+      }
     });
+
+    const invalidMsg = 'Invalid Sentry Dsn: https://sentry.io/123';
+    const consoleMessage = page.waitForEvent('console', {
+      timeout: 5000,
+      predicate: (msg) => msg.text().includes(invalidMsg),
+    });
+
+    await page.goto('/');
+
+    expect((await consoleMessage).text()).toContain(invalidMsg);
   });
 });

src/frontend/apps/impress/package.json

@@ -21,6 +21,7 @@
     "@gouvfr-lasuite/integration": "1.0.2",
     "@hocuspocus/provider": "2.13.7",
     "@openfun/cunningham-react": "2.9.4",
+    "@sentry/nextjs": "8.39.0",
     "@tanstack/react-query": "5.60.5",
     "i18next": "23.16.5",
     "i18next-browser-languagedetector": "8.0.0",

src/frontend/apps/impress/src/__tests__/pages.test.tsx

@@ -13,6 +13,12 @@ jest.mock('next/router', () => ({
   },
 }));
 
+jest.mock('@sentry/nextjs', () => ({
+  captureException: jest.fn(),
+  captureMessage: jest.fn(),
+  setUser: jest.fn(),
+}));
+
 describe('Page', () => {
   it('checks Page rendering', () => {
     render(<Page />, { wrapper: AppWrapper });

src/frontend/apps/impress/src/core/config/ConfigProvider.tsx

@@ -1,9 +1,20 @@
-import { PropsWithChildren } from 'react';
+import { PropsWithChildren, useEffect } from 'react';
+
+import { useSentryStore } from '@/stores/useSentryStore';
 
 import { useConfig } from './api/useConfig';
 
 export const ConfigProvider = ({ children }: PropsWithChildren) => {
-  useConfig();
+  const { data: conf } = useConfig();
+  const { setSentry } = useSentryStore();
+
+  useEffect(() => {
+    if (!conf?.SENTRY_DSN) {
+      return;
+    }
+
+    setSentry(conf.SENTRY_DSN, conf.ENVIRONMENT);
+  }, [conf?.SENTRY_DSN, conf?.ENVIRONMENT, setSentry]);
 
   return children;
 };

src/frontend/apps/impress/src/stores/useSentryStore.tsx

@@ -0,0 +1,32 @@
+import * as Sentry from '@sentry/nextjs';
+import type { Client } from '@sentry/types';
+import { create } from 'zustand';
+
+import packageJson from '../../package.json';
+
+interface SentryState {
+  sentry?: Client;
+  setSentry: (dsn?: string, environment?: string) => void;
+}
+
+export const useSentryStore = create<SentryState>((set, get) => ({
+  sentry: undefined,
+  setSentry: (dsn, environment) => {
+    const sentry = get().sentry;
+    if (sentry) {
+      return;
+    }
+
+    set({
+      sentry: Sentry.init({
+        dsn,
+        environment,
+        integrations: [Sentry.replayIntegration()],
+        release: packageJson.version,
+        replaysSessionSampleRate: 0.1,
+        replaysOnErrorSampleRate: 1.0,
+        tracesSampleRate: 1.0,
+      }),
+    });
+  },
+}));