From fe18c454e297bbd5c61b600f2a3b0840ea3484e4 Mon Sep 17 00:00:00 2001
From: Evgeny <me@jeka.su>
Date: Fri, 24 Jul 2026 22:11:03 +0300
Subject: [PATCH] chatgui: add diagnostic logging for Windows emoji animation
 bug investigation

---
 tools/chatgui/src/emojipanel.cpp  |  3 +++
 tools/chatgui/src/lottieicon.cpp  |  7 +++++++
 tools/chatgui/src/messagelist.cpp | 10 +++++++++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/tools/chatgui/src/emojipanel.cpp b/tools/chatgui/src/emojipanel.cpp
index 01eeed96..48927f4e 100644
--- a/tools/chatgui/src/emojipanel.cpp
+++ b/tools/chatgui/src/emojipanel.cpp
@@ -3,6 +3,7 @@
 #include "emojitabbar.h"
 #include "animtimer.h"
 #include "lottieicon.h"
+#include <cstdio>
 #include <QPushButton>
 #include <QScrollArea>
 #include <QTabWidget>
@@ -34,6 +35,8 @@ public:
         if (data.type == EmojiType::Animation) {
             setMouseTracking(true);
             m_icon = AnimTimer::instance()->icon(data.animPath);
+            fprintf(stderr, "[DIAG EmojiBtn] btn=%p path=%s m_icon=%p\n",
+                    (void*)this, qPrintable(data.animPath), (void*)m_icon);
             m_timer.setInterval(33);
             connect(&m_timer, &QTimer::timeout, this, [this]() {
                 if (m_icon && m_icon->isValid()) {
diff --git a/tools/chatgui/src/lottieicon.cpp b/tools/chatgui/src/lottieicon.cpp
index d6490825..d0056b40 100644
--- a/tools/chatgui/src/lottieicon.cpp
+++ b/tools/chatgui/src/lottieicon.cpp
@@ -2,6 +2,7 @@
 #include <rlottie_capi.h>
 #include <zlib.h>
 #include <cstring>
+#include <cstdio>
 
 static QByteArray unpackGzip(const QByteArray &data) {
     if (data.isEmpty()) return {};
@@ -35,15 +36,21 @@ static QByteArray unpackGzip(const QByteArray &data) {
 
 LottieIcon::LottieIcon(const QByteArray &tgsData) {
     QByteArray json = unpackGzip(tgsData);
+    fprintf(stderr, "[DIAG LottieIcon] this=%p tgsSize=%d jsonSize=%d jsonEmpty=%d\n",
+            (void*)this, (int)tgsData.size(), (int)json.size(), (int)json.isEmpty());
     if (json.isEmpty()) return;
 
     m_jsonData = json;
     m_anim = lottie_animation_from_data(m_jsonData.constData(), "", "");
+    fprintf(stderr, "[DIAG LottieIcon] this=%p m_anim=%p jsonHead=%.60s\n",
+            (void*)this, (void*)m_anim, m_jsonData.constData());
     if (!m_anim) return;
 
     lottie_animation_get_size(m_anim, &m_w, &m_h);
     m_totalFrames = (int)lottie_animation_get_totalframe(m_anim);
     m_frameRate = lottie_animation_get_framerate(m_anim);
+    fprintf(stderr, "[DIAG LottieIcon] this=%p frames=%d size=%zux%zu\n",
+            (void*)this, m_totalFrames, m_w, m_h);
     if (m_totalFrames <= 0) m_totalFrames = 1;
     m_valid = true;
 }
diff --git a/tools/chatgui/src/messagelist.cpp b/tools/chatgui/src/messagelist.cpp
index 95a4fd12..c9c8697b 100644
--- a/tools/chatgui/src/messagelist.cpp
+++ b/tools/chatgui/src/messagelist.cpp
@@ -16,6 +16,7 @@
 #include <QScrollBar>
 #include <QApplication>
 #include <QDebug>
+#include <cstdio>
 #include <vector>
 #include <memory>
 
@@ -104,11 +105,18 @@ MessageList::MessageList(DbManager* db, QWidget *parent)
                 if (e.type == EmojiType::Animation && !e.animPath.isEmpty()) {
                     QFile f(e.animPath);
                     if (f.open(QIODevice::ReadOnly)) {
-                        auto icon = std::make_unique<LottieIcon>(f.readAll());
+                        QByteArray raw = f.readAll();
+                        auto icon = std::make_unique<LottieIcon>(raw);
+                        fprintf(stderr, "[DIAG register] path=%s fileOpen=1 rawSize=%d iconPtr=%p iconValid=%d\n",
+                                qPrintable(e.animPath), (int)raw.size(),
+                                (void*)icon.get(), (int)icon->isValid());
                         if (icon->isValid()) {
                             AnimTimer::instance()->registerIcon(e.animPath, icon.get());
                             s_icons.push_back(std::move(icon));
                         }
+                    } else {
+                        fprintf(stderr, "[DIAG register] path=%s fileOpen=0\n",
+                                qPrintable(e.animPath));
                     }
                 }
             }