From 2b27ac3aec64f5c91bef404921abc8d46e1f3d57 Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Thu, 30 Nov 2023 11:22:06 -0500
Subject: [PATCH] Cache zap calculations in notification cards.

---
 .../amethyst/ui/note/MultiSetCompose.kt       |  4 ++-
 .../amethyst/ui/note/ReactionsRow.kt          |  2 +-
 .../ui/screen/loggedIn/AccountViewModel.kt    | 28 +++++++++++++++++++
 .../amethyst/ui/screen/loggedIn/MainScreen.kt |  1 -
 4 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/note/MultiSetCompose.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/note/MultiSetCompose.kt
index 74d0f89a1..618191e81 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/note/MultiSetCompose.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/note/MultiSetCompose.kt
@@ -176,7 +176,9 @@ private fun Galeries(
 
     if (hasZapEvents) {
         var zapEvents by remember(multiSetCard.zapEvents) {
-            mutableStateOf<ImmutableList<ZapAmountCommentNotification>>(persistentListOf())
+            mutableStateOf(
+                accountViewModel.cachedDecryptAmountMessageInGroup(multiSetCard.zapEvents)
+            )
         }
 
         LaunchedEffect(key1 = Unit) {
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 83db96829..0751acbb9 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
@@ -453,7 +453,7 @@ private fun WatchZapAndRenderGallery(
     val zapsState by baseNote.live().zaps.observeAsState()
 
     var zapEvents by remember(zapsState) {
-        mutableStateOf<ImmutableList<ZapAmountCommentNotification>>(
+        mutableStateOf(
             accountViewModel.cachedDecryptAmountMessageInGroup(baseNote)
         )
     }
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt
index dad98ede9..4830f9585 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt
@@ -248,6 +248,34 @@ class AccountViewModel(val account: Account, val settings: SettingsState) : View
         }
     }
 
+    fun cachedDecryptAmountMessageInGroup(zapNotes: List<CombinedZap>): ImmutableList<ZapAmountCommentNotification> {
+        return zapNotes.map {
+            val request = it.request.event as? LnZapRequestEvent
+            if (request?.isPrivateZap() == true) {
+                val cachedPrivateRequest = request.cachedPrivateZap()
+                if (cachedPrivateRequest != null) {
+                    ZapAmountCommentNotification(
+                        LocalCache.getUserIfExists(cachedPrivateRequest.pubKey) ?: it.request.author,
+                        cachedPrivateRequest.content.ifBlank { null },
+                        showAmountAxis((it.response.event as? LnZapEvent)?.amount)
+                    )
+                } else {
+                    ZapAmountCommentNotification(
+                        it.request.author,
+                        it.request.event?.content()?.ifBlank { null },
+                        showAmountAxis((it.response.event as? LnZapEvent)?.amount)
+                    )
+                }
+            } else {
+                ZapAmountCommentNotification(
+                    it.request.author,
+                    it.request.event?.content()?.ifBlank { null },
+                    showAmountAxis((it.response.event as? LnZapEvent)?.amount)
+                )
+            }
+        }.toImmutableList()
+    }
+
     fun cachedDecryptAmountMessageInGroup(baseNote: Note): ImmutableList<ZapAmountCommentNotification> {
         val myList = baseNote.zaps.toList()
 
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/MainScreen.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/MainScreen.kt
index fd0725d0f..fc0f6ef5a 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/MainScreen.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/MainScreen.kt
@@ -84,7 +84,6 @@ import com.vitorpamplona.amethyst.ui.screen.NostrHomeRepliesFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.NostrVideoFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.NotificationViewModel
 import com.vitorpamplona.amethyst.ui.screen.SharedPreferencesViewModel
-import com.vitorpamplona.amethyst.ui.theme.Size55Modifier
 import kotlinx.coroutines.launch
 import kotlin.math.abs