From 7339b49759030f6a90783b9cd4b5481219819750 Mon Sep 17 00:00:00 2001
From: James Magahern <james@magahern.com>
Date: Fri, 9 May 2025 23:39:16 -0700
Subject: [PATCH] Encoding: need to include associated chat item guids.

Beginning to understand associated chat items (reactions, etc).
---
 Dumped Classes/IMSharedUtilities_ClassDump.h  |  1 +
 kordophone/Categories/IMChat+Encoded.m        |  7 +++
 kordophone/Categories/IMMessageItem+Encoded.m | 43 +++++++++++++++++++
 3 files changed, 51 insertions(+)

diff --git a/Dumped Classes/IMSharedUtilities_ClassDump.h b/Dumped Classes/IMSharedUtilities_ClassDump.h
index 9945a4f..f3f25b5 100644
--- a/Dumped Classes/IMSharedUtilities_ClassDump.h	
+++ b/Dumped Classes/IMSharedUtilities_ClassDump.h	
@@ -1704,3 +1704,4 @@ extern NSURL* IMAttachmentPreviewFileURL(NSURL *attachmentURL, NSString *extensi
 - (id)initWithSerializedError_im:(struct NSDictionary *)arg1;
 @end
 
+extern NSString *IMAssociatedMessageDecodeGUID(NSString* guid);
diff --git a/kordophone/Categories/IMChat+Encoded.m b/kordophone/Categories/IMChat+Encoded.m
index 7cdad49..c852d94 100644
--- a/kordophone/Categories/IMChat+Encoded.m
+++ b/kordophone/Categories/IMChat+Encoded.m
@@ -20,6 +20,13 @@
     chatDict[@"date"] = MBIMWebServerFormatISO8601([self lastFinishedMessageDate]);
     chatDict[@"unreadCount"] = @([self unreadMessageCount]);
     
+    // NOTE: -[IMChat lastMessage] != -[[IMChat chatItems] lastMessage].
+    // This means the messages we get back from the message list operation might be different from this here, which means we
+    // can't reliably use `lastMessage.guid` as a sync anchor.
+    //
+    // Ideally, everything should move to use chat items instead of messages so we can handle associated message items (reactions).
+    // When that happens, we should use `lastFinishedMessageItem` here instead of `lastMessage`, and avoid the db hit.
+    //
     IMMessage *lastMessage = [self lastMessage];
     if (lastMessage) {
         NSString *lastMessagePreview = [lastMessage descriptionForPurpose:IMMessageDescriptionConversationList];
diff --git a/kordophone/Categories/IMMessageItem+Encoded.m b/kordophone/Categories/IMMessageItem+Encoded.m
index aeaead6..a4edf11 100644
--- a/kordophone/Categories/IMMessageItem+Encoded.m
+++ b/kordophone/Categories/IMMessageItem+Encoded.m
@@ -9,6 +9,40 @@
 #import "IMMessageItem+Encoded.h"
 #import "MBIMHTTPUtilities.h"
 
+static NSString* IMAssociatedMessageTypeValue(IMAssociatedMessageType type) {
+    switch (type) {
+        case IMAssociatedMessageTypeAcknowledgmentHeart:
+            return @"heart";
+        case IMAssociatedMessageTypeAcknowledgmentThumbsUp:
+            return @"thumbsUp";
+        case IMAssociatedMessageTypeAcknowledgmentThumbsDown:
+            return @"thumbsDown";
+        case IMAssociatedMessageTypeAcknowledgmentHa:
+            return @"ha";
+        case IMAssociatedMessageTypeAcknowledgmentExclamation:
+            return @"exclamation";
+        case IMAssociatedMessageTypeAcknowledgmentQuestionMark:
+            return @"questionMark";
+            
+        case IMAssociatedMessageTypeAcknowledgmentHeartRemoved:
+            return @"removed heart";
+        case IMAssociatedMessageTypeAcknowledgmentThumbsUpRemoved:
+            return @"removed thumbsUp";
+        case IMAssociatedMessageTypeAcknowledgmentThumbsDownRemoved:
+            return @"removed thumbsDown";
+        case IMAssociatedMessageTypeAcknowledgmentHaRemoved:
+            return @"removed ha";
+        case IMAssociatedMessageTypeAcknowledgmentExclamationRemoved:
+            return @"removed exclamation";
+        case IMAssociatedMessageTypeAcknowledgmentQuestionMarkRemoved:
+            return @"removed questionMark";
+            
+        case IMAssociatedMessageTypeUnspecified:
+        default:
+            return @"unknown";
+    }
+}
+
 @implementation IMMessage (Encoded)
 
 - (NSDictionary *)mbim_dictionaryRepresentation
@@ -19,6 +53,15 @@
     messageDict[@"sender"] = ([self isFromMe] ? nil : [[self sender] displayID]); // TODO: nil sender is still a weird way to represent this...
     messageDict[@"guid"] = [self guid];
     
+    if ([self associatedMessageGUID]) {
+        NSString *encodedAssociatedMessageGUID = [self associatedMessageGUID];
+        messageDict[@"associatedMessageGUID"] = encodedAssociatedMessageGUID;
+        messageDict[@"associatedMessageType"] = IMAssociatedMessageTypeValue([self associatedMessageType]);
+        
+        NSString *decodedAssociatedChatItemGUID = IMAssociatedMessageDecodeGUID(encodedAssociatedMessageGUID);
+        if (decodedAssociatedChatItemGUID) messageDict[@"associatedChatItemGUID"] = decodedAssociatedChatItemGUID;
+    }
+    
     if ([self fileTransferGUIDs]) {
         // Support only images right now
         NSMutableDictionary *attachmentMetadatas = [NSMutableDictionary dictionary];