feat: implement notifications system with API endpoints for fetching and marking notifications as read

src/app/api/notifications/route.js

@@ -0,0 +1,73 @@
+import { NextRequest, NextResponse } from "next/server";
+import { auth } from "@/lib/auth";
+import {
+	getUserNotifications,
+	markNotificationsAsRead,
+	getUnreadNotificationCount,
+} from "@/lib/notifications";
+
+export async function GET(request) {
+	try {
+		const session = await auth();
+
+		if (!session?.user?.id) {
+			return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+		}
+
+		const { searchParams } = new URL(request.url);
+		const includeRead = searchParams.get("includeRead") === "true";
+		const limit = parseInt(searchParams.get("limit") || "50");
+		const offset = parseInt(searchParams.get("offset") || "0");
+
+		const notifications = await getUserNotifications(session.user.id, {
+			includeRead,
+			limit,
+			offset,
+		});
+
+		const unreadCount = await getUnreadNotificationCount(session.user.id);
+
+		return NextResponse.json({
+			notifications,
+			unreadCount,
+			hasMore: notifications.length === limit,
+		});
+	} catch (error) {
+		console.error("Error fetching notifications:", error);
+		return NextResponse.json(
+			{ error: "Internal server error" },
+			{ status: 500 }
+		);
+	}
+}
+
+export async function PATCH(request) {
+	try {
+		const session = await auth();
+
+		if (!session?.user?.id) {
+			return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+		}
+
+		const body = await request.json();
+		const { action, notificationIds } = body;
+
+		if (action === "markAsRead") {
+			await markNotificationsAsRead(session.user.id, notificationIds);
+			const unreadCount = await getUnreadNotificationCount(session.user.id);
+
+			return NextResponse.json({
+				success: true,
+				unreadCount,
+			});
+		}
+
+		return NextResponse.json({ error: "Invalid action" }, { status: 400 });
+	} catch (error) {
+		console.error("Error updating notifications:", error);
+		return NextResponse.json(
+			{ error: "Internal server error" },
+			{ status: 500 }
+		);
+	}
+}