added push notifications

frontend/services/api.tsx

@@ -1,7 +1,7 @@
 
 const BASE_URL = process.env.EXPO_PUBLIC_API_URL; // TODO change this
 
-
+export type NotificationType = 'PUSH_NOTIFICATION' | 'NO_NOTIFICATION';
 function authHeader(token?: string) {
     return token ? { Authorization: `Bearer ${token}` } : {};
 }
@@ -25,7 +25,13 @@ async function request<T>(
         headers: { "Content-Type": "application/json", ...authHeader(token) },
         ...(body ? { body: JSON.stringify(body) } : {}),
     });
-    if (!res.ok) throw new Error(await res.text().catch(() => `HTTP ${res.status}`));
+    if (!res.ok) {
+        const errorText = await res.text().catch(() => `HTTP ${res.status}`);
+        console.log('Failed URL:', res.url);
+        console.log('Status:', res.status);
+        console.log('Response:', errorText);
+        throw new Error(errorText);
+    }
     return res.json();
 }
 
@@ -65,6 +71,7 @@ export type UserDTO = {
     id: string;
     email: string;
     subjectSet: Subject[];
+    notificationType: NotificationType;
 
 };
 
@@ -115,6 +122,12 @@ export const authApi = {
 };
 
 
+export const userApi = {
+    updateNotificationType: (
+        type: 'PUSH_NOTIFICATION' | 'NO_NOTIFICATION',
+        token: string
+    ) => post<void>('/users/me/notification-type', { notificationType: type }, token),
+};
 
 export const subjectsApi = {
     getAll: (token?: string) => get<Subject[]>("/subjects", token),
@@ -135,6 +148,8 @@ export const subscriptionsApi = {
         ),
 };
 
+
+
 export const entriesApi = {
     getEntries: (params: { subjectId?: string; groupName?: string; page?: number }) =>
         get<SpringPage<Entry>>("/entries", undefined, params),

frontend/services/notifications.tsx

@@ -0,0 +1,35 @@
+import {
+    getMessaging,
+    requestPermission,
+    getToken,
+    onTokenRefresh,
+    AuthorizationStatus,
+} from '@react-native-firebase/messaging';
+import { post } from '@/services/api';
+
+export async function registerDeviceToken(authToken: string): Promise<void> {
+    const messaging = getMessaging();
+    const status = await requestPermission(messaging);
+    const granted =
+        status === AuthorizationStatus.AUTHORIZED ||
+        status === AuthorizationStatus.PROVISIONAL;
+
+    if (!granted) return;
+
+    const fcmToken = await getToken(messaging);
+
+    await fetch(`${process.env.EXPO_PUBLIC_API_URL}/device-tokens/register`, {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            'Authorization': `Bearer ${authToken}`,
+        },
+        body: JSON.stringify({ token: fcmToken }),
+    });
+}
+
+export function listenForTokenRefresh(authToken: string): () => void {
+    return onTokenRefresh(getMessaging(), async (newToken) => {
+        await post('/device-tokens/register', { token: newToken }, authToken);
+    });
+}