1 files changed, 33 insertions, 0 deletions
diff --git a/src/api/routes/channels/#channel_id/messages/#message_id/ack.ts b/src/api/routes/channels/#channel_id/messages/#message_id/ack.ts
new file mode 100644
index 00000000..041f4d5e
--- /dev/null
+++ b/src/api/routes/channels/#channel_id/messages/#message_id/ack.ts
@@ -0,0 +1,33 @@
+import { emitEvent, getPermission, MessageAckEvent, ReadState, Snowflake } from "@fosscord/util";
+import { Request, Response, Router } from "express";
+import { route } from "@fosscord/api";
+import { OrmUtils } from "@fosscord/util";
+
+const router = Router();
+
+router.post("/", route({ body: "MessageAcknowledgeSchema" }), async (req: Request, res: Response) => {
+	const { channel_id, message_id } = req.params;
+
+	const permission = await getPermission(req.user_id, undefined, channel_id);
+	permission.hasThrow("VIEW_CHANNEL");
+
+	let read_state = await ReadState.findOne({ where: { user_id: req.user_id, channel_id } });
+	if (!read_state) read_state = OrmUtils.mergeDeep(new ReadState(), { user_id: req.user_id, channel_id }) as ReadState;
+	read_state.last_message_id = message_id;
+
+	await read_state.save();
+
+	await emitEvent({
+		event: "MESSAGE_ACK",
+		user_id: req.user_id,
+		data: {
+			channel_id,
+			message_id,
+			version: 3763
+		}
+	} as MessageAckEvent);
+
+	res.sendStatus(204);
+});
+
+export default router;