Adds a flatten to set utility

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/feeds/ChannelFeedContentState.kt

@@ -31,6 +31,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.equalImmutabl
 import com.vitorpamplona.ammolite.relays.BundledInsert
 import com.vitorpamplona.ammolite.relays.BundledUpdate
 import com.vitorpamplona.quartz.utils.Log
+import com.vitorpamplona.quartz.utils.flattenToSet
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineScope
@@ -160,7 +161,7 @@ class ChannelFeedContentState(
     }
 
     fun invalidateInsertData(newItems: Set<Note>) {
-        bundlerInsert.invalidateList(newItems) { refreshFromOldState(it.flatten().toSet()) }
+        bundlerInsert.invalidateList(newItems) { refreshFromOldState(it.flattenToSet()) }
     }
 
     fun updateFeedWith(newNotes: Set<Note>) {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/feeds/FeedContentState.kt

@@ -32,6 +32,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.equalImmutabl
 import com.vitorpamplona.ammolite.relays.BasicBundledInsert
 import com.vitorpamplona.ammolite.relays.BasicBundledUpdate
 import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent
+import com.vitorpamplona.quartz.utils.flattenToSet
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineScope
@@ -212,7 +213,7 @@ class FeedContentState(
 
     fun invalidateInsertData(newItems: Set<Note>) {
         bundlerInsert.invalidateList(newItems) {
-            refreshFromOldState(it.flatten().toSet())
+            refreshFromOldState(it.flattenToSet())
         }
     }
 

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/notifications/CardFeedContentState.kt

@@ -48,6 +48,7 @@ import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelMetadataEvent
 import com.vitorpamplona.quartz.nip57Zaps.LnZapEvent
 import com.vitorpamplona.quartz.nip58Badges.BadgeAwardEvent
 import com.vitorpamplona.quartz.utils.Log
+import com.vitorpamplona.quartz.utils.flattenToSet
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineScope
@@ -426,7 +427,7 @@ class CardFeedContentState(
 
     fun invalidateInsertData(newItems: Set<Note>) {
         bundlerInsert.invalidateList(newItems) {
-            val newObjects = it.flatten().toSet()
+            val newObjects = it.flattenToSet()
             logTime("${this.javaClass.simpleName} Card additive receiving ${newObjects.size} items into ${it.size} items") {
                 if (newObjects.isNotEmpty()) {
                     refreshFromOldState(newObjects)

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/profile/header/apps/UserProfileAppRecommendationsFeedFilter.kt

@@ -26,6 +26,7 @@ import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
 import com.vitorpamplona.amethyst.ui.dal.DefaultFeedOrder
 import com.vitorpamplona.quartz.nip89AppHandlers.recommendation.AppRecommendationEvent
+import com.vitorpamplona.quartz.utils.flattenToSet
 
 class UserProfileAppRecommendationsFeedFilter(
     val user: User,
@@ -43,7 +44,7 @@ class UserProfileAppRecommendationsFeedFilter(
 
     override fun applyFilter(newItems: Set<Note>): Set<Note> = innerApplyFilter(newItems)
 
-    private fun innerApplyFilter(collection: Collection<Note>): Set<Note> = collection.mapNotNull { filterMap(it) }.flatten().toSet()
+    private fun innerApplyFilter(collection: Collection<Note>): Set<Note> = collection.mapNotNull { filterMap(it) }.flattenToSet()
 
     fun filterMap(it: Note): List<Note>? {
         val noteEvent = it.event

benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/LargeDBInsertBenchmark.kt

@@ -31,6 +31,7 @@ import com.vitorpamplona.quartz.nip01Core.store.sqlite.EventStore
 import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent
 import com.vitorpamplona.quartz.nip40Expiration.isExpired
 import com.vitorpamplona.quartz.utils.Log
+import com.vitorpamplona.quartz.utils.flattenToSet
 import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -72,8 +73,8 @@ class LargeDBInsertBenchmark : BaseLargeCacheBenchmark() {
     fun bench40DeletionRequestsEvents() {
         val context = ApplicationProvider.getApplicationContext<Context>()
         val deletions = allEvents.filterIsInstance<DeletionEvent>()
-        val deletionIds = deletions.map { it.deleteEventIds() }.flatten().toSet()
+        val deletionIds = deletions.map { it.deleteEventIds() }.flattenToSet()
-        val deletionAddresses = deletions.map { it.deleteAddressIds() }.flatten().toSet()
+        val deletionAddresses = deletions.map { it.deleteAddressIds() }.flattenToSet()
 
         val toBeDeletedEvents =
             allEvents.filter {

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/hashtags/MipMapHashTags.kt

@@ -20,6 +20,8 @@
  */
 package com.vitorpamplona.quartz.nip01Core.tags.hashtags
 
+import com.vitorpamplona.quartz.utils.flattenToSet
+
 fun hashtagAlts(tag: String): Set<String> =
     setOf(
         tag,
@@ -30,6 +32,6 @@ fun hashtagAlts(tag: String): Set<String> =
         },
     )
 
-fun hashtagAlts(tags: List<String>): Set<String> = tags.map { hashtagAlts(it) }.flatten().toSet()
+fun hashtagAlts(tags: List<String>): Set<String> = tags.map { hashtagAlts(it) }.flattenToSet()
 
-fun hashtagAlts(tags: Set<String>): Set<String> = tags.map { hashtagAlts(it) }.flatten().toSet()
+fun hashtagAlts(tags: Set<String>): Set<String> = tags.map { hashtagAlts(it) }.flattenToSet()

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/IterableExt.kt

@@ -46,3 +46,11 @@ fun <T> Iterable<T>.joinToStringLimited(
     buffer.append(postfix)
     return buffer.toString()
 }
+
+public fun <T> Iterable<Iterable<T>>.flattenToSet(): Set<T> {
+    val result = mutableSetOf<T>()
+    for (element in this) {
+        result.addAll(element)
+    }
+    return result
+}