// stream_data.h
struct StreamData {
    std::string streamName;
    std::string eventData;
};

class StreamManager {
public:
    void addStream(const std::string& streamName, const std::string& eventData);
    void removeStream(const std::string& streamName);
    StreamData getStream(const std::string& streamName);

private:
    std::unordered_map<std::string, StreamData> streamMap;
};

// stream_data.cpp
void StreamManager::addStream(const std::string& streamName, const std::string& eventData) {
    StreamData data;
    data.streamName = streamName;
    data.eventData = eventData;
    streamMap[streamName] = data;
}

void StreamManager::removeStream(const std::string& streamName) {
    streamMap.erase(streamName);
}

StreamData StreamManager::getStream(const std::string& streamName) {
    auto it = streamMap.find(streamName);
    if (it != streamMap.end()) {
        return it->second;
    }
    // Return an empty StreamData object if not found
    return StreamData();
}