From a7d8d86fa7598a4a15372b27f8f9b891b02102a4 Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Mon, 14 Oct 2024 17:27:30 -0500
Subject: [PATCH] Add GET /api/v1/notifications/:id endpoint

---
 src/app.ts                           |  4 +++-
 src/controllers/api/notifications.ts | 27 ++++++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/app.ts b/src/app.ts
index 1c4b79aa..b2a34765 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -60,7 +60,7 @@ import {
 import { markersController, updateMarkersController } from '@/controllers/api/markers.ts';
 import { mediaController, updateMediaController } from '@/controllers/api/media.ts';
 import { mutesController } from '@/controllers/api/mutes.ts';
-import { notificationsController } from '@/controllers/api/notifications.ts';
+import { notificationController, notificationsController } from '@/controllers/api/notifications.ts';
 import { createTokenController, oauthAuthorizeController, oauthController } from '@/controllers/api/oauth.ts';
 import {
   configController,
@@ -273,6 +273,8 @@ app.get('/api/v1/suggestions', suggestionsV1Controller);
 app.get('/api/v2/suggestions', suggestionsV2Controller);
 
 app.get('/api/v1/notifications', requireSigner, notificationsController);
+app.get('/api/v1/notifications/:id', requireSigner, notificationController);
+
 app.get('/api/v1/favourites', requireSigner, favouritesController);
 app.get('/api/v1/bookmarks', requireSigner, bookmarksController);
 app.get('/api/v1/blocks', requireSigner, blocksController);
diff --git a/src/controllers/api/notifications.ts b/src/controllers/api/notifications.ts
index 144064a6..1c251563 100644
--- a/src/controllers/api/notifications.ts
+++ b/src/controllers/api/notifications.ts
@@ -74,6 +74,31 @@ const notificationsController: AppController = async (c) => {
   return renderNotifications(filters, types, params, c);
 };
 
+const notificationController: AppController = async (c) => {
+  const id = c.req.param('id');
+  const pubkey = await c.get('signer')?.getPublicKey()!;
+  const store = c.get('store');
+
+  // Remove the timestamp from the ID.
+  const eventId = id.replace(/^\d+-/, '');
+
+  const [event] = await store.query([{ ids: [eventId] }]);
+
+  if (!event) {
+    return c.json({ error: 'Event not found' }, { status: 404 });
+  }
+
+  await hydrateEvents({ events: [event], store });
+
+  const notification = await renderNotification(event, { viewerPubkey: pubkey });
+
+  if (!notification) {
+    return c.json({ error: 'Notification not found' }, { status: 404 });
+  }
+
+  return c.json(notification);
+};
+
 async function renderNotifications(
   filters: NostrFilter[],
   types: Set<string>,
@@ -106,4 +131,4 @@ async function renderNotifications(
   return paginated(c, events, notifications);
 }
 
-export { notificationsController };
+export { notificationController, notificationsController };