Base support for Relay lists for DMs.

app/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt

@@ -63,6 +63,7 @@ import com.vitorpamplona.quartz.events.CommunityListEvent
 import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
 import com.vitorpamplona.quartz.events.ContactListEvent
 import com.vitorpamplona.quartz.events.DeletionEvent
+import com.vitorpamplona.quartz.events.DirectMessageRelayListEvent
 import com.vitorpamplona.quartz.events.DraftEvent
 import com.vitorpamplona.quartz.events.EmojiPackEvent
 import com.vitorpamplona.quartz.events.EmojiPackSelectionEvent
@@ -699,6 +700,13 @@ object LocalCache {
         consumeBaseReplaceable(event, relay)
     }
 
+    private fun consume(
+        event: DirectMessageRelayListEvent,
+        relay: Relay?,
+    ) {
+        consumeBaseReplaceable(event, relay)
+    }
+
     private fun consume(
         event: CommunityDefinitionEvent,
         relay: Relay?,
@@ -2265,6 +2273,7 @@ object LocalCache {
                 }
                 is ContactListEvent -> consume(event)
                 is DeletionEvent -> consume(event)
+                is DirectMessageRelayListEvent -> consume(event, relay)
                 is DraftEvent -> consume(event, relay)
                 is EmojiPackEvent -> consume(event, relay)
                 is EmojiPackSelectionEvent -> consume(event, relay)

app/src/main/java/com/vitorpamplona/amethyst/service/NostrAccountDataSource.kt

@@ -40,6 +40,7 @@ import com.vitorpamplona.quartz.events.CalendarRSVPEvent
 import com.vitorpamplona.quartz.events.CalendarTimeSlotEvent
 import com.vitorpamplona.quartz.events.ChannelMessageEvent
 import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.DirectMessageRelayListEvent
 import com.vitorpamplona.quartz.events.DraftEvent
 import com.vitorpamplona.quartz.events.EmojiPackSelectionEvent
 import com.vitorpamplona.quartz.events.Event
@@ -101,7 +102,7 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
             types = COMMON_FEED_TYPES,
             filter =
                 JsonFilter(
-                    kinds = listOf(AdvertisedRelayListEvent.KIND, StatusEvent.KIND),
+                    kinds = listOf(StatusEvent.KIND, AdvertisedRelayListEvent.KIND, DirectMessageRelayListEvent.KIND),
                     authors = listOf(account.userProfile().pubkeyHex),
                     limit = 5,
                 ),
@@ -119,6 +120,7 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
                             MetadataEvent.KIND,
                             ContactListEvent.KIND,
                             AdvertisedRelayListEvent.KIND,
+                            DirectMessageRelayListEvent.KIND,
                             MuteListEvent.KIND,
                             PeopleListEvent.KIND,
                         ),

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt

@@ -1409,30 +1409,27 @@ public suspend fun <T, K> collectSuccessfulSigningOperations(
         return
     }
 
-    val (value, elapsed) =
-        measureTimedValue {
-            coroutineScope {
-                val jobs =
-                    operationsInput.map {
-                        async {
-                            val result =
-                                withTimeoutOrNull(10000) {
-                                    suspendCancellableCoroutine { continuation ->
-                                        runRequestFor(it) { result: K -> continuation.resume(result) }
-                                    }
-                                }
-                            if (result != null) {
-                                output[it] = result
+    coroutineScope {
+        val jobs =
+            operationsInput.map {
+                async {
+                    val result =
+                        withTimeoutOrNull(10000) {
+                            suspendCancellableCoroutine { continuation ->
+                                runRequestFor(it) { result: K -> continuation.resume(result) }
                             }
                         }
+                    if (result != null) {
+                        output[it] = result
                     }
-
-                // runs in parallel to avoid overcrowding Amber.
-                withTimeoutOrNull(15000) {
-                    jobs.joinAll()
                 }
             }
+
+        // runs in parallel to avoid overcrowding Amber.
+        withTimeoutOrNull(15000) {
+            jobs.joinAll()
         }
+    }
 
     onReady(output)
 }

quartz/src/main/java/com/vitorpamplona/quartz/events/DirectMessageRelayListEvent.kt

@@ -0,0 +1,68 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.events
+
+import androidx.compose.runtime.Immutable
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.signers.NostrSigner
+import com.vitorpamplona.quartz.utils.TimeUtils
+
+@Immutable
+class DirectMessageRelayListEvent(
+    id: HexKey,
+    pubKey: HexKey,
+    createdAt: Long,
+    tags: Array<Array<String>>,
+    content: String,
+    sig: HexKey,
+) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
+    override fun dTag() = FIXED_D_TAG
+
+    fun relays(): List<String> {
+        return tags.mapNotNull {
+            if (it.size > 1 && it[0] == "relay") {
+                it[1]
+            } else {
+                null
+            }
+        }
+    }
+
+    companion object {
+        const val KIND = 10050
+        const val FIXED_D_TAG = ""
+
+        fun create(
+            relays: List<String>,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+            onReady: (DirectMessageRelayListEvent) -> Unit,
+        ) {
+            val tags =
+                relays.map {
+                    arrayOf("relay", it)
+                }.plusElement(arrayOf("alt", "Relay list for private messages")).toTypedArray()
+            val msg = ""
+
+            signer.sign(createdAt, KIND, tags, msg, onReady)
+        }
+    }
+}

quartz/src/main/java/com/vitorpamplona/quartz/events/EventFactory.kt

@@ -79,6 +79,7 @@ class EventFactory {
                 CommunityPostApprovalEvent(id, pubKey, createdAt, tags, content, sig)
             ContactListEvent.KIND -> ContactListEvent(id, pubKey, createdAt, tags, content, sig)
             DeletionEvent.KIND -> DeletionEvent(id, pubKey, createdAt, tags, content, sig)
+            DirectMessageRelayListEvent.KIND -> DirectMessageRelayListEvent(id, pubKey, createdAt, tags, content, sig)
             DraftEvent.KIND -> DraftEvent(id, pubKey, createdAt, tags, content, sig)
             EmojiPackEvent.KIND -> EmojiPackEvent(id, pubKey, createdAt, tags, content, sig)
             EmojiPackSelectionEvent.KIND ->