feat:add Web Push notification system

src/routes/api/finds/[findId]/comments/+server.ts

@@ -1,8 +1,10 @@
 import { json } from '@sveltejs/kit';
 import { db } from '$lib/server/db';
-import { findComment, user } from '$lib/server/db/schema';
+import { findComment, user, find } from '$lib/server/db/schema';
 import { eq, desc } from 'drizzle-orm';
 import type { RequestHandler } from './$types';
+import { notificationService } from '$lib/server/notifications';
+import { pushService } from '$lib/server/push';
 
 export const GET: RequestHandler = async ({ params, locals }) => {
 	const session = locals.session;
@@ -108,6 +110,54 @@ export const POST: RequestHandler = async ({ params, locals, request }) => {
 			return json({ success: false, error: 'Failed to create comment' }, { status: 500 });
 		}
 
+		// Send notification to find owner if not self-comment
+		const findData = await db.select().from(find).where(eq(find.id, findId)).limit(1);
+		
+		if (findData.length > 0 && findData[0].userId !== session.userId) {
+			const findOwner = findData[0];
+			const shouldNotify = await notificationService.shouldNotify(findOwner.userId, 'find_commented');
+			
+			if (shouldNotify) {
+				// Get commenter's username
+				const commenterUser = await db
+					.select({ username: user.username })
+					.from(user)
+					.where(eq(user.id, session.userId))
+					.limit(1);
+				
+				const commenterUsername = commenterUser[0]?.username || 'Someone';
+				const findTitle = findOwner.title || 'your find';
+
+				await notificationService.createNotification({
+					userId: findOwner.userId,
+					type: 'find_commented',
+					title: 'New comment on your find',
+					message: `${commenterUsername} commented on: ${findTitle}`,
+					data: {
+						findId: findOwner.id,
+						commentId,
+						commenterId: session.userId,
+						commenterUsername,
+						findTitle,
+						commentContent: content.trim().substring(0, 100)
+					}
+				});
+
+				// Send push notification
+				await pushService.sendPushNotification(findOwner.userId, {
+					title: 'New comment on your find',
+					message: `${commenterUsername} commented on: ${findTitle}`,
+					url: `/?find=${findOwner.id}`,
+					tag: 'find_commented',
+					data: {
+						findId: findOwner.id,
+						commentId,
+						commenterId: session.userId
+					}
+				});
+			}
+		}
+
 		return json({
 			success: true,
 			data: commentWithUser[0]

src/routes/api/finds/[findId]/like/+server.ts

@@ -1,8 +1,10 @@
 import { json, error } from '@sveltejs/kit';
 import { db } from '$lib/server/db';
-import { findLike, find } from '$lib/server/db/schema';
+import { findLike, find, user } from '$lib/server/db/schema';
 import { eq, and, count } from 'drizzle-orm';
 import { encodeBase64url } from '@oslojs/encoding';
+import { notificationService } from '$lib/server/notifications';
+import { pushService } from '$lib/server/push';
 
 function generateLikeId(): string {
 	const bytes = crypto.getRandomValues(new Uint8Array(15));
@@ -59,6 +61,49 @@ export async function POST({
 
 	const likeCount = likeCountResult[0]?.count ?? 0;
 
+	// Send notification to find owner if not self-like
+	const findOwner = existingFind[0];
+	if (findOwner.userId !== locals.user.id) {
+		const shouldNotify = await notificationService.shouldNotify(findOwner.userId, 'find_liked');
+		
+		if (shouldNotify) {
+			// Get liker's username
+			const likerUser = await db
+				.select({ username: user.username })
+				.from(user)
+				.where(eq(user.id, locals.user.id))
+				.limit(1);
+			
+			const likerUsername = likerUser[0]?.username || 'Someone';
+			const findTitle = findOwner.title || 'your find';
+
+			await notificationService.createNotification({
+				userId: findOwner.userId,
+				type: 'find_liked',
+				title: 'Someone liked your find',
+				message: `${likerUsername} liked your find: ${findTitle}`,
+				data: {
+					findId: findOwner.id,
+					likerId: locals.user.id,
+					likerUsername,
+					findTitle
+				}
+			});
+
+			// Send push notification
+			await pushService.sendPushNotification(findOwner.userId, {
+				title: 'Someone liked your find',
+				message: `${likerUsername} liked your find: ${findTitle}`,
+				url: `/?find=${findOwner.id}`,
+				tag: 'find_liked',
+				data: {
+					findId: findOwner.id,
+					likerId: locals.user.id
+				}
+			});
+		}
+	}
+
 	return json({
 		success: true,
 		likeId,

src/routes/api/friends/+server.ts

@@ -5,6 +5,8 @@ import { friendship, user } from '$lib/server/db/schema';
 import { eq, and, or } from 'drizzle-orm';
 import { encodeBase64url } from '@oslojs/encoding';
 import { getSignedR2Url } from '$lib/server/r2';
+import { notificationService } from '$lib/server/notifications';
+import { pushService } from '$lib/server/push';
 
 function generateFriendshipId(): string {
 	const bytes = crypto.getRandomValues(new Uint8Array(15));
@@ -180,6 +182,34 @@ export const POST: RequestHandler = async ({ request, locals }) => {
 			})
 			.returning();
 
+		// Send notification to friend
+		const shouldNotify = await notificationService.shouldNotify(friendId, 'friend_request');
+		if (shouldNotify) {
+			await notificationService.createNotification({
+				userId: friendId,
+				type: 'friend_request',
+				title: 'New friend request',
+				message: `${locals.user.username} sent you a friend request`,
+				data: {
+					friendshipId: newFriendship[0].id,
+					senderId: locals.user.id,
+					senderUsername: locals.user.username
+				}
+			});
+
+			// Send push notification
+			await pushService.sendPushNotification(friendId, {
+				title: 'New friend request',
+				message: `${locals.user.username} sent you a friend request`,
+				url: '/friends',
+				tag: 'friend_request',
+				data: {
+					friendshipId: newFriendship[0].id,
+					senderId: locals.user.id
+				}
+			});
+		}
+
 		return json({ success: true, friendship: newFriendship[0] });
 	} catch (err) {
 		console.error('Error sending friend request:', err);

src/routes/api/friends/[friendshipId]/+server.ts

@@ -1,8 +1,10 @@
 import { json, error } from '@sveltejs/kit';
 import type { RequestHandler } from './$types';
 import { db } from '$lib/server/db';
-import { friendship } from '$lib/server/db/schema';
+import { friendship, user } from '$lib/server/db/schema';
 import { eq } from 'drizzle-orm';
+import { notificationService } from '$lib/server/notifications';
+import { pushService } from '$lib/server/push';
 
 export const PUT: RequestHandler = async ({ params, request, locals }) => {
 	if (!locals.user) {
@@ -72,6 +74,47 @@ export const PUT: RequestHandler = async ({ params, request, locals }) => {
 			.where(eq(friendship.id, friendshipId))
 			.returning();
 
+		// Send notification if friend request was accepted
+		if (action === 'accept') {
+			const senderId = friendshipRecord.userId;
+			const shouldNotify = await notificationService.shouldNotify(senderId, 'friend_accepted');
+			
+			if (shouldNotify) {
+				// Get accepter's username
+				const accepterUser = await db
+					.select({ username: user.username })
+					.from(user)
+					.where(eq(user.id, locals.user.id))
+					.limit(1);
+				
+				const accepterUsername = accepterUser[0]?.username || 'Someone';
+
+				await notificationService.createNotification({
+					userId: senderId,
+					type: 'friend_accepted',
+					title: 'Friend request accepted',
+					message: `${accepterUsername} accepted your friend request`,
+					data: {
+						friendshipId: friendshipRecord.id,
+						accepterId: locals.user.id,
+						accepterUsername
+					}
+				});
+
+				// Send push notification
+				await pushService.sendPushNotification(senderId, {
+					title: 'Friend request accepted',
+					message: `${accepterUsername} accepted your friend request`,
+					url: '/friends',
+					tag: 'friend_accepted',
+					data: {
+						friendshipId: friendshipRecord.id,
+						accepterId: locals.user.id
+					}
+				});
+			}
+		}
+
 		return json({ success: true, friendship: updatedFriendship[0] });
 	} catch (err) {
 		console.error('Error updating friendship:', err);

src/routes/api/notifications/+server.ts

@@ -0,0 +1,77 @@
+import { json, type RequestHandler } from '@sveltejs/kit';
+import { notificationService } from '$lib/server/notifications';
+
+// GET /api/notifications - Get user notifications
+export const GET: RequestHandler = async ({ locals, url }) => {
+	const user = locals.user;
+	if (!user) {
+		return json({ error: 'Unauthorized' }, { status: 401 });
+	}
+
+	const limit = parseInt(url.searchParams.get('limit') || '20');
+	const offset = parseInt(url.searchParams.get('offset') || '0');
+	const unreadOnly = url.searchParams.get('unreadOnly') === 'true';
+
+	try {
+		const notifications = await notificationService.getUserNotifications(user.id, {
+			limit,
+			offset,
+			unreadOnly
+		});
+
+		return json({ notifications });
+	} catch (error) {
+		console.error('Error fetching notifications:', error);
+		return json({ error: 'Failed to fetch notifications' }, { status: 500 });
+	}
+};
+
+// PATCH /api/notifications - Mark notifications as read
+export const PATCH: RequestHandler = async ({ locals, request }) => {
+	const user = locals.user;
+	if (!user) {
+		return json({ error: 'Unauthorized' }, { status: 401 });
+	}
+
+	try {
+		const { notificationIds, markAll } = await request.json();
+
+		if (markAll) {
+			await notificationService.markAllAsRead(user.id);
+		} else if (Array.isArray(notificationIds) && notificationIds.length > 0) {
+			await notificationService.markAsRead(notificationIds);
+		} else {
+			return json({ error: 'Invalid request: provide notificationIds or markAll' }, { status: 400 });
+		}
+
+		return json({ success: true });
+	} catch (error) {
+		console.error('Error marking notifications as read:', error);
+		return json({ error: 'Failed to mark notifications as read' }, { status: 500 });
+	}
+};
+
+// DELETE /api/notifications - Delete notifications
+export const DELETE: RequestHandler = async ({ locals, request }) => {
+	const user = locals.user;
+	if (!user) {
+		return json({ error: 'Unauthorized' }, { status: 401 });
+	}
+
+	try {
+		const { notificationId, deleteAll } = await request.json();
+
+		if (deleteAll) {
+			await notificationService.deleteAllNotifications(user.id);
+		} else if (notificationId) {
+			await notificationService.deleteNotification(notificationId, user.id);
+		} else {
+			return json({ error: 'Invalid request: provide notificationId or deleteAll' }, { status: 400 });
+		}
+
+		return json({ success: true });
+	} catch (error) {
+		console.error('Error deleting notifications:', error);
+		return json({ error: 'Failed to delete notifications' }, { status: 500 });
+	}
+};

src/routes/api/notifications/count/+server.ts

@@ -0,0 +1,18 @@
+import { json, type RequestHandler } from '@sveltejs/kit';
+import { notificationService } from '$lib/server/notifications';
+
+// GET /api/notifications/count - Get unread notification count
+export const GET: RequestHandler = async ({ locals }) => {
+	const user = locals.user;
+	if (!user) {
+		return json({ error: 'Unauthorized' }, { status: 401 });
+	}
+
+	try {
+		const count = await notificationService.getUnreadCount(user.id);
+		return json({ count });
+	} catch (error) {
+		console.error('Error fetching unread count:', error);
+		return json({ error: 'Failed to fetch unread count' }, { status: 500 });
+	}
+};

src/routes/api/notifications/subscribe/+server.ts

@@ -0,0 +1,54 @@
+import { json, type RequestHandler } from '@sveltejs/kit';
+import { pushService, VAPID_PUBLIC_KEY } from '$lib/server/push';
+
+// GET /api/notifications/subscribe - Get VAPID public key
+export const GET: RequestHandler = async () => {
+	return json({ publicKey: VAPID_PUBLIC_KEY });
+};
+
+// POST /api/notifications/subscribe - Subscribe to push notifications
+export const POST: RequestHandler = async ({ locals, request }) => {
+	const user = locals.user;
+	if (!user) {
+		return json({ error: 'Unauthorized' }, { status: 401 });
+	}
+
+	try {
+		const { subscription } = await request.json();
+		const userAgent = request.headers.get('user-agent') || undefined;
+
+		if (!subscription || !subscription.endpoint || !subscription.keys) {
+			return json({ error: 'Invalid subscription data' }, { status: 400 });
+		}
+
+		await pushService.saveSubscription(user.id, subscription, userAgent);
+
+		return json({ success: true });
+	} catch (error) {
+		console.error('Error saving subscription:', error);
+		return json({ error: 'Failed to save subscription' }, { status: 500 });
+	}
+};
+
+// DELETE /api/notifications/subscribe - Unsubscribe from push notifications
+export const DELETE: RequestHandler = async ({ locals, request }) => {
+	const user = locals.user;
+	if (!user) {
+		return json({ error: 'Unauthorized' }, { status: 401 });
+	}
+
+	try {
+		const { endpoint } = await request.json();
+
+		if (!endpoint) {
+			return json({ error: 'Endpoint is required' }, { status: 400 });
+		}
+
+		await pushService.removeSubscription(user.id, endpoint);
+
+		return json({ success: true });
+	} catch (error) {
+		console.error('Error removing subscription:', error);
+		return json({ error: 'Failed to remove subscription' }, { status: 500 });
+	}
+};