From 303e0326735163eb02dfd70be3bd2ebefd7a4d70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lera=20Elvo=C3=A9?= <yagich@poto.cafe>
Date: Mon, 2 Jun 2025 23:11:12 +0300
Subject: [PATCH] do not create duplicate subscriptions

---
 apps/threads.lua | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/apps/threads.lua b/apps/threads.lua
index 611b1b6..5f8b5e8 100644
--- a/apps/threads.lua
+++ b/apps/threads.lua
@@ -146,7 +146,12 @@ app:post("thread", "/:slug", function(self)
   end
   
   if self.params.subscribe == "on" then
-    Subscriptions:create({user_id = user.id, thread_id = thread.id, last_seen = os.time()})
+    local subscription = Subscriptions:find({user_id = user.id, thread_id = thread.id})
+    if subscription then
+      subscription:update({last_seen = os.time})
+    else
+      Subscriptions:create({user_id = user.id, thread_id = thread.id, last_seen = os.time()})
+    end
   end
   
   return {redirect_to = self:url_for("thread", {slug = thread.slug}, {page = last_page}) .. "#latest-post"}