From 93922b3f93b5509fe5f31ee871e99def1795b3da Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Wed, 22 May 2024 17:06:02 -0500
Subject: [PATCH] Add reactionController

---
 src/controllers/api/reactions.ts | 38 ++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/controllers/api/reactions.ts

diff --git a/src/controllers/api/reactions.ts b/src/controllers/api/reactions.ts
new file mode 100644
index 00000000..41914028
--- /dev/null
+++ b/src/controllers/api/reactions.ts
@@ -0,0 +1,38 @@
+import { AppController } from '@/app.ts';
+import { Storages } from '@/storages.ts';
+import { createEvent } from '@/utils/api.ts';
+import { renderStatus } from '@/views/mastodon/statuses.ts';
+
+/**
+ * React to a status.
+ * https://docs.pleroma.social/backend/development/API/pleroma_api/#put-apiv1pleromastatusesidreactionsemoji
+ */
+const reactionController: AppController = async (c) => {
+  const id = c.req.param('id');
+  const emoji = c.req.param('emoji');
+  const signer = c.get('signer')!;
+
+  if (!/^\p{RGI_Emoji}$/v.test(emoji)) {
+    return c.json({ error: 'Invalid emoji' }, 400);
+  }
+
+  const store = await Storages.db();
+  const [event] = await store.query([{ kinds: [1], ids: [id], limit: 1 }]);
+
+  if (!event) {
+    return c.json({ error: 'Status not found' }, 404);
+  }
+
+  await createEvent({
+    kind: 7,
+    content: '',
+    created_at: Math.floor(Date.now() / 1000),
+    tags: [['e', id]],
+  }, c);
+
+  const status = renderStatus(event, { viewerPubkey: await signer.getPublicKey() });
+
+  return c.json(status);
+};
+
+export { reactionController };