From 9eee5d9e1e08373c12eb7c962f30ba9e8028375e Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Wed, 12 Nov 2025 08:27:59 -0500
Subject: [PATCH] slight performance improvement on the reqflow

---
 .../client/reqs/NostrClientStaticReqAsStateFlow.kt   | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/reqs/NostrClientStaticReqAsStateFlow.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/reqs/NostrClientStaticReqAsStateFlow.kt
index 65897db25..94be9ef79 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/reqs/NostrClientStaticReqAsStateFlow.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/relay/client/reqs/NostrClientStaticReqAsStateFlow.kt
@@ -65,7 +65,7 @@ fun INostrClient.reqResultsInOrderAsFlow(
         val subId = RandomInstance.randomChars(10)
         var hasBeenLive = false
         val eventIds = mutableSetOf<HexKey>()
-        val events = mutableListOf<Event>()
+        var currentEvents = listOf<Event>()
 
         val listener =
             object : IRequestListener {
@@ -77,12 +77,16 @@ fun INostrClient.reqResultsInOrderAsFlow(
                 ) {
                     if (event.id !in eventIds) {
                         if (hasBeenLive) {
-                            events.add(0, event)
+                            // faster
+                            val list = ArrayList<Event>(1 + currentEvents.size)
+                            list.add(event)
+                            list.addAll(currentEvents)
+                            currentEvents = list
                         } else {
-                            events.add(event)
+                            currentEvents = currentEvents + event
                         }
                         eventIds.add(event.id)
-                        trySend(events.toList())
+                        trySend(currentEvents)
                     }
                 }