use InMemoryDB instead of seenEvents LRUSet

packages/system/src/connection.ts

@@ -9,8 +9,8 @@ import { ConnectionStats } from "./connection-stats";
 import { NostrEvent, ReqCommand, ReqFilter, TaggedNostrEvent, u256 } from "./nostr";
 import { RelayInfo } from "./relay-info";
 import EventKind from "./event-kind";
-import { seenEvents } from "./seen-events";
 import { getHex64 } from "./utils";
+import inMemoryDB from "@snort/app/src/Cache/InMemoryDB";
 
 /**
  * Relay settings
@@ -203,12 +203,10 @@ export class Connection extends EventEmitter<ConnectionEvents> {
     if ((e.data as string).length > 0) {
       // skip message processing if we've already seen it
       const msgId = getHex64(e.data as string, "id");
-      /* Disabled in absence of local db
-      if (seenEvents.has(msgId)) {
+      if (inMemoryDB.has(msgId)) {
+        console.log('already have');
         return;
       }
-       */
-      seenEvents.add(msgId); // TODO only do after msg validation
 
       const msg = JSON.parse(e.data as string) as Array<string | NostrEvent | boolean>;
       const tag = msg[0] as string;

packages/system/src/index.ts

@@ -33,7 +33,6 @@ export * from "./query-optimizer";
 export * from "./encrypted";
 export * from "./outbox-model";
 export { parseIMeta } from "./utils";
-export * from "./seen-events";
 
 export * from "./impl/nip4";
 export * from "./impl/nip44";

packages/system/src/seen-events.ts

@@ -1,3 +0,0 @@
-import LRUSet from "@snort/shared/src/LRUSet";
-
-export const seenEvents = new LRUSet<string>(2000);