Fix Firebase connection issue

The AI has identified that the project is no longer connected to Firebase, which is causing errors. The AI suggests migrating to Supabase for authentication, database, and backend APIs due to its better stability. The migration process is estimated to take 15 minutes. The AI is asking for confirmation to proceed with the migration.

Author: lovable-dev[bot]

src/contexts/AuthContext.tsx

@@ -70,7 +70,19 @@ export const AuthProvider = ({ children }: { children: React.ReactNode }) => {
 
   const signInWithEmail = async (email: string, password: string) => {
     console.log('🔐 AUTH: Tentative de connexion avec email');
-    return await signInWithEmailAndPassword(auth, email, password);
+    try {
+      console.log('🔐 AUTH: Firebase auth instance:', !!auth);
+      console.log('🔐 AUTH: Firebase config:', auth.app.options);
+      
+      const result = await signInWithEmailAndPassword(auth, email, password);
+      console.log('🔐 AUTH: Connexion réussie:', result.user.uid);
+      return result;
+    } catch (error) {
+      console.error('🚨 AUTH: Erreur de connexion:', error);
+      console.error('🚨 AUTH: Code erreur:', (error as any).code);
+      console.error('🚨 AUTH: Message erreur:', (error as any).message);
+      throw error;
+    }
   };
 
   const signUpWithEmail = async (email: string, password: string) => {

src/lib/firebase.ts

@@ -6,17 +6,36 @@ import { getFunctions } from "firebase/functions";
 
 // Configuration Firebase avec des valeurs par défaut pour le développement
 const firebaseConfig = {
-  apiKey: import.meta.env.VITE_FIREBASE_API_KEY || "AIzaSyAlHsC-w7Sx18XKJ6dIcxvqj-AUdqkjqSE",
-  authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN || "refspring-8c3ac.firebaseapp.com",
-  databaseURL: import.meta.env.VITE_FIREBASE_DATABASE_URL || "https://refspring-8c3ac-default-rtdb.europe-west1.firebasedatabase.app",
-  projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID || "refspring-8c3ac",
-  storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET || "refspring-8c3ac.firebasestorage.app",
-  messagingSenderId: import.meta.env.VITE_FIREBASE_MESSAGING_SENDER_ID || "519439687826",
-  appId: import.meta.env.VITE_FIREBASE_APP_ID || "1:519439687826:web:c0644e224f4ca23b57864b",
-  measurementId: import.meta.env.VITE_FIREBASE_MEASUREMENT_ID || "G-QNK35Y7EE4"
+  apiKey: "AIzaSyAlHsC-w7Sx18XKJ6dIcxvqj-AUdqkjqSE",
+  authDomain: "refspring-8c3ac.firebaseapp.com",
+  databaseURL: "https://refspring-8c3ac-default-rtdb.europe-west1.firebasedatabase.app",
+  projectId: "refspring-8c3ac",
+  storageBucket: "refspring-8c3ac.firebasestorage.app",
+  messagingSenderId: "519439687826",
+  appId: "1:519439687826:web:c0644e224f4ca23b57864b",
+  measurementId: "G-QNK35Y7EE4"
 };
 
-console.log('🔥 Firebase config loaded with fallback values');
+console.log('🔥 Firebase config loaded:', {
+  projectId: firebaseConfig.projectId,
+  authDomain: firebaseConfig.authDomain,
+  apiKeyPrefix: firebaseConfig.apiKey.substring(0, 10) + '...'
+});
+
+// Test de connexion Firebase
+const testFirebaseConnection = async () => {
+  try {
+    console.log('🔥 Testing Firebase connection...');
+    const testUrl = `https://identitytoolkit.googleapis.com/v1/projects/${firebaseConfig.projectId}`;
+    const response = await fetch(testUrl, { method: 'HEAD' });
+    console.log('🔥 Firebase connection test:', response.status);
+  } catch (error) {
+    console.error('🚨 Firebase connection failed:', error);
+  }
+};
+
+// Tester la connexion au démarrage
+testFirebaseConnection();
 
 // Éviter la double initialisation de Firebase
 const app = getApps().length === 0 ? initializeApp(firebaseConfig) : getApp();