From a41ee653d85d0b6a5201cba9981ad42613cea399 Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Fri, 2 Jun 2023 22:14:21 -0400
Subject: [PATCH] Moves reaction counts to a thread

---
 .../amethyst/ui/note/NoteCompose.kt           |  2 +-
 .../amethyst/ui/note/ReactionsRow.kt          | 26 ++++++++++++++-----
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt
index cb9e70816..0adefca16 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt
@@ -2120,7 +2120,7 @@ private fun RelayBadges(baseNote: Note) {
     var lazyRelayList by remember { mutableStateOf(emptyList<String>()) }
 
     LaunchedEffect(key1 = noteRelaysState, key2 = expanded) {
-        withContext(Dispatchers.IO) {
+        launch(Dispatchers.IO) {
             val relayList = noteRelays.relays.map {
                 it.removePrefix("wss://").removePrefix("ws://")
             }
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/note/ReactionsRow.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/note/ReactionsRow.kt
index 652c2a85c..64c3a48b0 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/note/ReactionsRow.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/note/ReactionsRow.kt
@@ -319,9 +319,16 @@ fun LikeReaction(
 fun LikeIcon(baseNote: Note, iconSize: Dp = 20.dp, grayTint: Color, loggedIn: User) {
     val reactionsState by baseNote.live().reactions.observeAsState()
 
-    val wasReactedByLoggedIn by remember(reactionsState) {
-        derivedStateOf {
-            reactionsState?.note?.isReactedBy(loggedIn) == true
+    var wasReactedByLoggedIn by remember(reactionsState) {
+        mutableStateOf(false)
+    }
+
+    LaunchedEffect(key1 = reactionsState) {
+        launch(Dispatchers.Default) {
+            val newWasReactedByLoggedIn = reactionsState?.note?.isReactedBy(loggedIn) == true
+            if (wasReactedByLoggedIn != newWasReactedByLoggedIn) {
+                wasReactedByLoggedIn = newWasReactedByLoggedIn
+            }
         }
     }
 
@@ -350,9 +357,16 @@ fun LikeIcon(baseNote: Note, iconSize: Dp = 20.dp, grayTint: Color, loggedIn: Us
 fun LikeText(baseNote: Note, grayTint: Color) {
     val reactionsState by baseNote.live().reactions.observeAsState()
 
-    val reactionsCount by remember(reactionsState) {
-        derivedStateOf {
-            " " + showCount(reactionsState?.note?.reactions?.size)
+    var reactionsCount by remember(reactionsState) {
+        mutableStateOf("")
+    }
+
+    LaunchedEffect(key1 = reactionsState) {
+        launch(Dispatchers.Default) {
+            val newReactionsCount = " " + showCount(reactionsState?.note?.reactions?.size)
+            if (reactionsCount != newReactionsCount) {
+                reactionsCount = newReactionsCount
+            }
         }
     }