Convert the old format properly.

chat.cpp

@@ -179,21 +179,21 @@ void Chat::handleModelNameChanged()
     emit modelNameChanged();
 }
 
-bool Chat::serialize(QDataStream &stream) const
+bool Chat::serialize(QDataStream &stream, int version) const
 {
     stream << m_creationDate;
     stream << m_id;
     stream << m_name;
     stream << m_userName;
     stream << m_savedModelName;
-    if (!m_llmodel->serialize(stream))
+    if (!m_llmodel->serialize(stream, version))
         return false;
-    if (!m_chatModel->serialize(stream))
+    if (!m_chatModel->serialize(stream, version))
         return false;
     return stream.status() == QDataStream::Ok;
 }
 
-bool Chat::deserialize(QDataStream &stream)
+bool Chat::deserialize(QDataStream &stream, int version)
 {
     stream >> m_creationDate;
     stream >> m_id;
@@ -202,9 +202,9 @@ bool Chat::deserialize(QDataStream &stream)
     stream >> m_userName;
     emit nameChanged();
     stream >> m_savedModelName;
-    if (!m_llmodel->deserialize(stream))
+    if (!m_llmodel->deserialize(stream, version))
         return false;
-    if (!m_chatModel->deserialize(stream))
+    if (!m_chatModel->deserialize(stream, version))
         return false;
     emit chatModelChanged();
     return stream.status() == QDataStream::Ok;

chat.h

@@ -55,8 +55,8 @@ public:
     void reloadModel();
 
     qint64 creationDate() const { return m_creationDate; }
-    bool serialize(QDataStream &stream) const;
-    bool deserialize(QDataStream &stream);
+    bool serialize(QDataStream &stream, int version) const;
+    bool deserialize(QDataStream &stream, int version);
 
     QList<QString> modelList() const;
 

chatlistmodel.cpp

@@ -5,7 +5,7 @@
 #include <QDataStream>
 
 #define CHAT_FORMAT_MAGIC 0xF5D553CC
-#define CHAT_FORMAT_VERSION 100
+#define CHAT_FORMAT_VERSION 1
 
 ChatListModel::ChatListModel(QObject *parent)
     : QAbstractListModel(parent)
@@ -70,7 +70,7 @@ void ChatListModel::saveChats() const
         out.setVersion(QDataStream::Qt_6_2);
 
         qDebug() << "serializing chat" << fileName;
-        if (!chat->serialize(out)) {
+        if (!chat->serialize(out, CHAT_FORMAT_VERSION)) {
             qWarning() << "ERROR: Couldn't serialize chat to file:" << file.fileName();
             file.remove();
         }
@@ -169,6 +169,7 @@ void ChatsRestoreThread::run()
             }
             QDataStream in(&file);
 
+            qint32 version = 0;
             if (!f.oldFile) {
                 // Read and check the header
                 quint32 magic;
@@ -179,14 +180,13 @@ void ChatsRestoreThread::run()
                 }
 
                 // Read the version
-                qint32 version;
                 in >> version;
-                if (version < 100) {
+                if (version < 1) {
                     qWarning() << "ERROR: Chat file has non supported version:" << file.fileName();
                     continue;
                 }
 
-                if (version <= 100)
+                if (version <= 1)
                     in.setVersion(QDataStream::Qt_6_2);
             }
 
@@ -194,7 +194,7 @@ void ChatsRestoreThread::run()
 
             Chat *chat = new Chat;
             chat->moveToThread(qApp->thread());
-            if (!chat->deserialize(in)) {
+            if (!chat->deserialize(in, version)) {
                 qWarning() << "ERROR: Couldn't deserialize chat from file:" << file.fileName();
                 file.remove();
             } else {

chatllm.cpp

@@ -368,7 +368,7 @@ bool ChatLLM::handleNameRecalculate(bool isRecalc)
     return true;
 }
 
-bool ChatLLM::serialize(QDataStream &stream)
+bool ChatLLM::serialize(QDataStream &stream, int version)
 {
     stream << response();
     stream << generatedName();
@@ -388,7 +388,7 @@ bool ChatLLM::serialize(QDataStream &stream)
     return stream.status() == QDataStream::Ok;
 }
 
-bool ChatLLM::deserialize(QDataStream &stream)
+bool ChatLLM::deserialize(QDataStream &stream, int version)
 {
     QString response;
     stream >> response;
@@ -407,9 +407,13 @@ bool ChatLLM::deserialize(QDataStream &stream)
     stream >> tokensSize;
     m_ctx.tokens.resize(tokensSize);
     stream.readRawData(reinterpret_cast<char*>(m_ctx.tokens.data()), tokensSize * sizeof(int));
-    QByteArray compressed;
-    stream >> compressed;
-    m_state = qUncompress(compressed);
+    if (version > 0) {
+        QByteArray compressed;
+        stream >> compressed;
+        m_state = qUncompress(compressed);
+    } else {
+        stream >> m_state;
+    }
 #if defined(DEBUG)
     qDebug() << "chatllm deserialize" << m_chat->id();
 #endif

chatllm.h

@@ -35,8 +35,8 @@ public:
 
     QString generatedName() const { return QString::fromStdString(m_nameResponse); }
 
-    bool serialize(QDataStream &stream);
-    bool deserialize(QDataStream &stream);
+    bool serialize(QDataStream &stream, int version);
+    bool deserialize(QDataStream &stream, int version);
 
 public Q_SLOTS:
     bool prompt(const QString &prompt, const QString &prompt_template, int32_t n_predict,

chatmodel.h

@@ -210,7 +210,7 @@ public:
 
     int count() const { return m_chatItems.size(); }
 
-    bool serialize(QDataStream &stream) const
+    bool serialize(QDataStream &stream, int version) const
     {
         stream << count();
         for (auto c : m_chatItems) {
@@ -227,7 +227,7 @@ public:
         return stream.status() == QDataStream::Ok;
     }
 
-    bool deserialize(QDataStream &stream)
+    bool deserialize(QDataStream &stream, int version)
     {
         int size;
         stream >> size;