Method loadChat

app/src/AI/ChatStore.cpp:160–177

* @brief Reads one chat's snapshot, or an empty object when missing/corrupt. */

 * @brief Reads one chat's snapshot, or an empty object when missing/corrupt.
 */
QJsonObject AI::ChatStore::loadChat(const QString& id) const
{
  QFile f(chatPath(id));
  if (!f.exists() || !f.open(QIODevice::ReadOnly))
    return {};

  const auto bytes = f.readAll();
  f.close();

  QJsonParseError err;
  const auto doc = QJsonDocument::fromJson(bytes, &err);
  if (err.error != QJsonParseError::NoError || !doc.isObject()) {
    qCWarning(serialStudioAI) << "ChatStore: invalid chat file" << id << err.errorString();
    return {};
  }

  return doc.object();
}

/**
 * @brief Writes a chat's snapshot and refreshes its index metadata.