From 9b7cd1da5a9fc45d6b9279311f9438f7bb7fad51 Mon Sep 17 00:00:00 2001
From: Matthew Crossman <matt@crossman.page>
Date: Sun, 31 Jan 2021 12:45:19 +1100
Subject: [PATCH] Prevent adding duplicate subs.

---
 src/subreddit.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/subreddit.rs b/src/subreddit.rs
index 3e4eba2..11b3f0e 100644
--- a/src/subreddit.rs
+++ b/src/subreddit.rs
@@ -79,10 +79,10 @@ pub async fn subscriptions(req: HttpRequest) -> HttpResponse {
 	let mut sub_list = prefs(req.to_owned()).subs;
 
 	// Modify sub list based on action
-	if action == "subscribe" {
+	if action == "subscribe" && !sub_list.contains(&sub_name) {
 		sub_list.push(sub_name);
 		sub_list.sort();
-	} else {
+	} else if action == "unsubscribe" {
 		sub_list.retain(|s| s != &sub_name);
 	}