From 1e0edbb497166255621d342196c82d917f8c2b7b Mon Sep 17 00:00:00 2001
From: Martti Malmi <sirius@iki.fi>
Date: Tue, 22 Aug 2023 22:15:00 +0300
Subject: [PATCH] fix: do not save old follow lists

---
 src/js/nostr/Events.ts        | 14 ++++++--------
 src/js/nostr/SocialNetwork.ts |  1 +
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/js/nostr/Events.ts b/src/js/nostr/Events.ts
index 8f483946..f92c4366 100644
--- a/src/js/nostr/Events.ts
+++ b/src/js/nostr/Events.ts
@@ -131,14 +131,12 @@ const Events = {
     this.likesByMessageId.get(id)?.add(event.pubkey);
     EventDB.insert(event);
   },
-  handleFollow(event: Event) {
-    const existing = EventDB.findOne({ kinds: [3], authors: [event.pubkey] });
-    if (existing && existing.created_at >= event.created_at) {
+  handleFollowList(event: Event) {
+    const existing = SocialNetwork.followListTimestamps.get(ID(event.pubkey));
+    if (existing && existing >= event.created_at) {
       return;
     }
-    if (existing) {
-      //EventDB.findAndRemove({ kinds: [3], authors: [event.pubkey] });
-    }
+    SocialNetwork.followListTimestamps.set(ID(event.pubkey), event.created_at);
     // no need to store follow events in memory because they're already in SocialNetwork.
     // when we start doing p2p, we can perhaps keep them in memory or just ask from dexie
     //EventDB.insert(event);
@@ -236,7 +234,7 @@ const Events = {
       if (existing) {
         //EventDB.findAndRemove({ authors: [event.pubkey], kinds: [0] });
       }
-      // same as handleFollow, no need to store in memory for now
+      // same as handleFollowList, no need to store in memory for now
       //EventDB.insert(event);
       const profile = JSON.parse(event.content);
       // if we have previously deleted our account, log out. appease app store.
@@ -510,7 +508,7 @@ const Events = {
           return false;
         }
         this.maybeAddNotification(event);
-        this.handleFollow(event);
+        this.handleFollowList(event);
         break;
       }
       case 6:
diff --git a/src/js/nostr/SocialNetwork.ts b/src/js/nostr/SocialNetwork.ts
index 019123ac..140811bf 100644
--- a/src/js/nostr/SocialNetwork.ts
+++ b/src/js/nostr/SocialNetwork.ts
@@ -15,6 +15,7 @@ export default {
   followersByUser: new Map<UID, Set<UID>>(),
   blockedUsers: new Set<UID>(),
   flaggedUsers: new Set<UID>(),
+  followListTimestamps: new Map<UID, number>(), // timestamp of last follow list update
 
   isFollowing: function (follower: string, followedUser: string): boolean {
     const followedUserId = ID(followedUser);