From 75dc563a07826fa3ffe70d7b4109704959690bae Mon Sep 17 00:00:00 2001
From: DieGurke <55625494+DieGurke@users.noreply.github.com>
Date: Fri, 3 Jul 2020 17:46:37 +0200
Subject: [PATCH] Implemented sending RECEIVED GroupMessageStatusChanges

If a member logs in and receives pending groupMessages, there are now
groupMessageStatusChanges sent to all other members, that are online and
have already received the groupMessage.
---
 .../processors/LoginCredentialProcessor.java   | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/main/java/envoy/server/processors/LoginCredentialProcessor.java b/src/main/java/envoy/server/processors/LoginCredentialProcessor.java
index 86ccdfb..b562950 100755
--- a/src/main/java/envoy/server/processors/LoginCredentialProcessor.java
+++ b/src/main/java/envoy/server/processors/LoginCredentialProcessor.java
@@ -19,6 +19,7 @@ import javax.persistence.NoResultException;
 import enovy.server.util.VersionUtils;
 import envoy.data.LoginCredentials;
 import envoy.data.Message.MessageStatus;
+import envoy.event.GroupMessageStatusChange;
 import envoy.event.HandshakeRejection;
 import envoy.event.MessageStatusChange;
 import envoy.server.data.GroupMessage;
@@ -149,7 +150,22 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 				gmsg.getMemberMessageStatus().replace(user.getID(), MessageStatus.RECEIVED);
 				envoy.data.GroupMessage groupMessage = gmsg.toCommon();
 				writeProxy.write(socketID, groupMessage);
-				// Sending memberStatusEvent to all members (event does not exist yet I think)
+				// Sending GroupMessageStatusChanges to all members, that already received the
+				// groupMessage.
+				gmsg.getMemberMessageStatus().keySet().stream()
+					.filter(k -> (gmsg.getMemberMessageStatus().get(k) == MessageStatus.RECEIVED
+							|| gmsg.getMemberMessageStatus().get(k) == MessageStatus.READ) && connectionManager.getUserIdBySocketID(socketID) != k)
+					.forEach(k -> {
+						if (connectionManager.isOnline(k)) try {
+							writeProxy.write(connectionManager.getSocketID(k),
+									(new GroupMessageStatusChange(gmsg.getID(), MessageStatus.RECEIVED, LocalDateTime.now(),
+											connectionManager.getUserIdBySocketID(socketID))));
+						} catch (IOException e) {
+							// TODO Maybe Try Catch block is not necessarily needed but if so write proper
+							// logger statement here.
+							e.printStackTrace();
+						}
+					});
 				if (!gmsg.getMemberMessageStatus().containsValue(MessageStatus.SENT)) {
 					gmsg.received();
 					// Sending MessageStatusChangeEvent to all other members