From 1c4b2e9d1a20ac7e3717d57ef7cc2f4cf9e39934 Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Wed, 2 Jul 2025 08:59:12 -0400
Subject: [PATCH] Recover Send and Wait

---
 .../acessories/NostrClientSendAndWait.kt      | 110 ++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/relay/client/acessories/NostrClientSendAndWait.kt

diff --git a/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/relay/client/acessories/NostrClientSendAndWait.kt b/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/relay/client/acessories/NostrClientSendAndWait.kt
new file mode 100644
index 000000000..351041d9e
--- /dev/null
+++ b/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/relay/client/acessories/NostrClientSendAndWait.kt
@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2025 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.nip01Core.relay.client.acessories
+
+import android.util.Log
+import com.vitorpamplona.quartz.nip01Core.core.Event
+import com.vitorpamplona.quartz.nip01Core.relay.client.NostrClient
+import com.vitorpamplona.quartz.nip01Core.relay.client.listeners.IRelayClientListener
+import com.vitorpamplona.quartz.nip01Core.relay.client.listeners.RelayState
+import com.vitorpamplona.quartz.nip01Core.relay.client.single.IRelayClient
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
+import kotlinx.coroutines.DelicateCoroutinesApi
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+
+@OptIn(DelicateCoroutinesApi::class)
+suspend fun NostrClient.sendAndWaitForResponse(
+    event: Event,
+    relayList: Set<NormalizedRelayUrl>,
+    timeoutInSeconds: Long = 15,
+): Boolean {
+    val size = relayList.size
+    val latch = CountDownLatch(size)
+    val relayResults = mutableMapOf<NormalizedRelayUrl, Boolean>()
+    var result = false
+
+    Log.d("sendAndWaitForResponse", "Waiting for $size responses")
+
+    val subscription =
+        object : IRelayClientListener {
+            override fun onError(
+                relay: IRelayClient,
+                subId: String,
+                error: Error,
+            ) {
+                if (relay.url in relayList && relayResults[relay.url] == null) {
+                    relayResults[relay.url] = false
+                    latch.countDown()
+                }
+                Log.d("sendAndWaitForResponse", "onError Error from relay ${relay.url} count: ${latch.count} error: $error")
+            }
+
+            override fun onRelayStateChange(
+                relay: IRelayClient,
+                type: RelayState,
+            ) {
+                if (type == RelayState.DISCONNECTED) {
+                    if (relay.url in relayList && relayResults[relay.url] == null) {
+                        relayResults[relay.url] = false
+                        latch.countDown()
+                    }
+                }
+                Log.d("sendAndWaitForResponse", "onRelayStateChange ${type.name} from relay ${relay.url} count: ${latch.count}")
+            }
+
+            override fun onSendResponse(
+                relay: IRelayClient,
+                eventId: String,
+                success: Boolean,
+                message: String,
+            ) {
+                if (eventId == event.id) {
+                    if (relayResults[relay.url] == null) {
+                        latch.countDown()
+                        relayResults[relay.url] = success
+                    } else {
+                        if (success && relayResults[relay.url] == false) {
+                            relayResults[relay.url] = true
+                        }
+                    }
+
+                    if (success) {
+                        result = true
+                    }
+
+                    Log.d("sendAndWaitForResponse", "onSendResponse Received response for $eventId from relay ${relay.url} count: ${latch.count} message $message success $success")
+                }
+            }
+        }
+
+    subscribe(subscription)
+
+    send(event, relayList)
+
+    latch.await(timeoutInSeconds, TimeUnit.SECONDS)
+
+    unsubscribe(subscription)
+
+    Log.d("sendAndWaitForResponse", "countdown finished")
+
+    return result
+}