#include "network_manager.h"
#include "network_data_buffer.h"
#include "network_storage_thread.h"
#include "network_parser_thread.h"
#include "devices/network/NetworkPortWatcher.h"
#include "protocol_plugin/ProtocolPluginManager.h"
#include "utils/logging.h"
#include <QDateTime>
#include <QJsonDocument>
#include <QJsonArray>
#include <QJsonObject>
#include <QQueue>
#include <QNetworkInterface>
#include <QHostAddress>
#include <QProcess>
#include <algorithm>

NetworkManager::NetworkManager(DeviceBusCore *busCore, QObject *parent)
    : QObject(parent),
      m_busCore(busCore),
      m_portWatcher(new devices::network::NetworkPortWatcher(this)),
      m_discoveryTimer(new QTimer(this)),
      m_storageThread(nullptr),
      m_parserThread(nullptr),
      m_pluginManager(nullptr)
{
    // 连接定时器信号
    connect(m_discoveryTimer, &QTimer::timeout, this, &NetworkManager::discoverNetworkInterfaces);
    
    // 连接网络端口监视器信号
    connect(m_portWatcher, &devices::network::NetworkPortWatcher::networkDeviceArrived,
            this, &NetworkManager::onNetworkDeviceArrived);
    connect(m_portWatcher, &devices::network::NetworkPortWatcher::networkDeviceRemoved,
            this, &NetworkManager::onNetworkDeviceRemoved);
    
    // 启动网络端口监视器
    m_portWatcher->startWatching();
    
    // 初始化线程
    initThreads();
}

NetworkManager::~NetworkManager()
{
    stopDiscovery();
    closeAllConnections();
    cleanupThreads();
}

void NetworkManager::startDiscovery(int intervalMs)
{
    // 立即执行一次发现
    discoverNetworkInterfaces();

    // 启动定时器
    if (intervalMs > 0)
    {
        m_discoveryTimer->start(intervalMs);
    }
}

void NetworkManager::stopDiscovery()
{
    m_discoveryTimer->stop();
}

bool NetworkManager::openNetworkConnection(const QString &interfaceName, const ConnectionConfig &config)
{
    // 如果连接已经打开，直接返回成功
    if (m_openedInterfaces.contains(interfaceName))
    {
        return true;
    }

    bool success = false;

    if (config.protocol.toLower() == QStringLiteral("tcp"))
    {
        // 创建TCP连接
        QTcpSocket *socket = new QTcpSocket(this);
        
        // 连接信号
        connect(socket, &QTcpSocket::readyRead, this, &NetworkManager::onTcpReadyRead);
        connect(socket, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::errorOccurred),
                this, &NetworkManager::onTcpSocketError);
        connect(socket, &QTcpSocket::connected, this, &NetworkManager::onTcpConnected);
        connect(socket, &QTcpSocket::disconnected, this, &NetworkManager::onTcpDisconnected);

        // 尝试连接
        socket->connectToHost(config.remoteAddress, config.remotePort);
        
        if (socket->waitForConnected(5000))
        {
            m_tcpSockets.insert(interfaceName, socket);
            m_openedInterfaces.insert(interfaceName);
            m_connectionConfigs.insert(interfaceName, config);
            success = true;

            // 为接口创建数据缓冲区
            if (!m_dataBuffers.contains(interfaceName))
            {
                NetworkDataBuffer *buffer = new NetworkDataBuffer(interfaceName, this);
                m_dataBuffers.insert(interfaceName, buffer);
                
                // 注册到解析线程
                if (m_parserThread)
                {
                    m_parserThread->registerBuffer(interfaceName, buffer);
                }
            }

            LOG_DEBUG() << "Opened TCP connection for" << interfaceName 
                       << "to" << config.remoteAddress << ":" << config.remotePort;
        }
        else
        {
            LOG_WARNING() << "Failed to connect TCP for" << interfaceName 
                         << ":" << socket->errorString();
            delete socket;
        }
    }
    else if (config.protocol.toLower() == QStringLiteral("udp"))
    {
        // 创建UDP连接
        QUdpSocket *socket = new QUdpSocket(this);
        
        // 绑定本地端口
        QHostAddress bindAddress = QHostAddress::AnyIPv4;
        quint16 bindPort = config.localPort > 0 ? config.localPort : 0;
        if (socket->bind(bindAddress, bindPort))
        {
            // 连接信号
            connect(socket, &QUdpSocket::readyRead, this, &NetworkManager::onUdpReadyRead);
            
            m_udpSockets.insert(interfaceName, socket);
            m_openedInterfaces.insert(interfaceName);
            m_connectionConfigs.insert(interfaceName, config);
            success = true;

            // 为接口创建数据缓冲区
            if (!m_dataBuffers.contains(interfaceName))
            {
                NetworkDataBuffer *buffer = new NetworkDataBuffer(interfaceName, this);
                m_dataBuffers.insert(interfaceName, buffer);
                
                // 注册到解析线程
                if (m_parserThread)
                {
                    m_parserThread->registerBuffer(interfaceName, buffer);
                }
            }

            LOG_DEBUG() << "Opened UDP connection for" << interfaceName 
                       << "on port" << socket->localPort();
        }
        else
        {
            LOG_WARNING() << "Failed to bind UDP for" << interfaceName 
                         << ":" << socket->errorString();
            delete socket;
        }
    }
    else
    {
        LOG_WARNING() << "Unsupported protocol:" << config.protocol;
    }

    return success;
}

void NetworkManager::closeNetworkConnection(const QString &interfaceName)
{
    if (m_tcpSockets.contains(interfaceName))
    {
        QTcpSocket *socket = m_tcpSockets.take(interfaceName);
        socket->disconnectFromHost();
        if (socket->state() != QAbstractSocket::UnconnectedState)
        {
            socket->waitForDisconnected(3000);
        }
        delete socket;
        m_openedInterfaces.remove(interfaceName);
        m_connectionConfigs.remove(interfaceName);
        
        // 清理数据缓冲区
        if (m_dataBuffers.contains(interfaceName))
        {
            NetworkDataBuffer *buffer = m_dataBuffers.take(interfaceName);
            delete buffer;
        }
        
        emit interfaceRemoved(interfaceName);
        LOG_DEBUG() << "Closed TCP connection for" << interfaceName;
    }
    else if (m_udpSockets.contains(interfaceName))
    {
        QUdpSocket *socket = m_udpSockets.take(interfaceName);
        socket->close();
        delete socket;
        m_openedInterfaces.remove(interfaceName);
        m_connectionConfigs.remove(interfaceName);
        
        // 清理数据缓冲区
        if (m_dataBuffers.contains(interfaceName))
        {
            NetworkDataBuffer *buffer = m_dataBuffers.take(interfaceName);
            delete buffer;
        }
        
        emit interfaceRemoved(interfaceName);
        LOG_DEBUG() << "Closed UDP connection for" << interfaceName;
    }
}

bool NetworkManager::isConnectionOpen(const QString &interfaceName)
{
    if (m_tcpSockets.contains(interfaceName))
    {
        return m_tcpSockets[interfaceName]->state() == QAbstractSocket::ConnectedState;
    }
    else if (m_udpSockets.contains(interfaceName))
    {
        return m_udpSockets[interfaceName]->state() == QAbstractSocket::BoundState;
    }
    return false;
}

void NetworkManager::closeAllConnections()
{
    // 关闭所有TCP连接
    for (QTcpSocket *socket : m_tcpSockets.values())
    {
        socket->disconnectFromHost();
        if (socket->state() != QAbstractSocket::UnconnectedState)
        {
            socket->waitForDisconnected(3000);
        }
        delete socket;
    }
    m_tcpSockets.clear();

    // 关闭所有UDP连接
    for (QUdpSocket *socket : m_udpSockets.values())
    {
        socket->close();
        delete socket;
    }
    m_udpSockets.clear();

    m_openedInterfaces.clear();
    m_connectionConfigs.clear();
    
    // 清理所有数据缓冲区
    qDeleteAll(m_dataBuffers);
    m_dataBuffers.clear();
    
    LOG_DEBUG() << "All network connections closed";
}

bool NetworkManager::setNetworkConfig(const QString &interfaceName, const NetworkConfig &config)
{
    // 保存配置
    m_networkConfigs[interfaceName] = config;

#ifdef Q_OS_LINUX
    // Linux: 使用 ip 命令配置网络
    QProcess process;
    
    // 设置IP地址和子网掩码
    // 计算子网掩码的前缀长度
    QHostAddress netmaskAddr(config.netmask);
    int prefixLength = 0;
    quint32 mask = netmaskAddr.toIPv4Address();
    while (mask & 0x80000000) {
        prefixLength++;
        mask <<= 1;
    }
    
    QStringList ipArgs;
    ipArgs << QStringLiteral("addr") << QStringLiteral("add") 
           << QStringLiteral("%1/%2").arg(config.ipAddress).arg(prefixLength)
           << QStringLiteral("dev") << interfaceName;
    
    // 先删除旧地址（如果存在）
    QProcess delProcess;
    delProcess.start(QStringLiteral("ip"), QStringList() << QStringLiteral("addr") 
                     << QStringLiteral("flush") << QStringLiteral("dev") << interfaceName);
    delProcess.waitForFinished(3000);
    
    // 设置新地址
    process.start(QStringLiteral("ip"), ipArgs);
    if (!process.waitForFinished(5000))
    {
        LOG_WARNING() << "Failed to set IP address for" << interfaceName;
        return false;
    }
    
    if (process.exitCode() != 0)
    {
        LOG_WARNING() << "Failed to set IP address:" << process.readAllStandardError();
        return false;
    }
    
    // 设置网关
    if (!config.gateway.isEmpty())
    {
        QProcess routeProcess;
        routeProcess.start(QStringLiteral("ip"), QStringList() << QStringLiteral("route") 
                          << QStringLiteral("add") << QStringLiteral("default") 
                          << QStringLiteral("via") << config.gateway 
                          << QStringLiteral("dev") << interfaceName);
        routeProcess.waitForFinished(5000);
    }
    
    // 设置DNS（需要修改 /etc/resolv.conf，需要root权限）
    if (!config.dnsServers.isEmpty())
    {
        // 这里只是保存配置，实际修改DNS需要root权限
        // 可以通过systemd-resolved或其他方式配置
        LOG_INFO() << "DNS configuration saved for" << interfaceName 
                   << ":" << config.dnsServers.join(QStringLiteral(", "));
    }
    
#elif defined(Q_OS_WIN)
    // Windows: 使用 netsh 命令配置网络
    QProcess process;
    
    // 设置IP地址和子网掩码
    QStringList args;
    args << QStringLiteral("interface") << QStringLiteral("ip") << QStringLiteral("set") 
         << QStringLiteral("address") << QStringLiteral("name=") + interfaceName
         << QStringLiteral("static") << config.ipAddress << config.netmask;
    
    process.start(QStringLiteral("netsh"), args);
    if (!process.waitForFinished(5000) || process.exitCode() != 0)
    {
        LOG_WARNING() << "Failed to set IP address for" << interfaceName;
        return false;
    }
    
    // 设置网关
    if (!config.gateway.isEmpty())
    {
        QProcess routeProcess;
        routeProcess.start(QStringLiteral("netsh"), QStringList() << QStringLiteral("interface") 
                          << QStringLiteral("ip") << QStringLiteral("set") 
                          << QStringLiteral("route") << QStringLiteral("0.0.0.0/0") 
                          << QStringLiteral("interface=") + interfaceName 
                          << QStringLiteral("nexthop=") + config.gateway);
        routeProcess.waitForFinished(5000);
    }
    
    // 设置DNS
    if (!config.dnsServers.isEmpty())
    {
        QStringList dnsArgs;
        dnsArgs << QStringLiteral("interface") << QStringLiteral("ip") << QStringLiteral("set") 
                << QStringLiteral("dns") << QStringLiteral("name=") + interfaceName 
                << QStringLiteral("static") << config.dnsServers.first();
        
        QProcess dnsProcess;
        dnsProcess.start(QStringLiteral("netsh"), dnsArgs);
        dnsProcess.waitForFinished(5000);
    }
#endif

    LOG_DEBUG() << "Network configuration updated for" << interfaceName;
    return true;
}

NetworkManager::NetworkConfig NetworkManager::getNetworkConfig(const QString &interfaceName) const
{
    if (m_networkConfigs.contains(interfaceName))
    {
        return m_networkConfigs[interfaceName];
    }
    
    // 如果配置不存在，尝试从系统读取
    NetworkConfig config;
    QNetworkInterface iface = QNetworkInterface::interfaceFromName(interfaceName);
    if (iface.isValid())
    {
        const QList<QNetworkAddressEntry> entries = iface.addressEntries();
        for (const QNetworkAddressEntry &entry : entries)
        {
            if (entry.ip().protocol() == QAbstractSocket::IPv4Protocol)
            {
                config.ipAddress = entry.ip().toString();
                config.netmask = entry.netmask().toString();
                break;
            }
        }
    }
    
    return config;
}

QStringList NetworkManager::getOpenedInterfaces() const
{
    return m_openedInterfaces.values();
}

QStringList NetworkManager::getAvailableInterfaces() const
{
    QStringList interfaces;
    const QList<QNetworkInterface> ifaces = QNetworkInterface::allInterfaces();
    for (const QNetworkInterface &iface : ifaces)
    {
        // 跳过回环接口
        if (iface.flags().testFlag(QNetworkInterface::IsLoopBack))
        {
            continue;
        }
        interfaces << iface.name();
    }
    return interfaces;
}

bool NetworkManager::writeData(const QString &interfaceName, const QByteArray &data)
{
    if (m_tcpSockets.contains(interfaceName))
    {
        QTcpSocket *socket = m_tcpSockets[interfaceName];
        if (socket->state() == QAbstractSocket::ConnectedState)
        {
            qint64 bytesWritten = socket->write(data);
            if (bytesWritten == data.size())
            {
                LOG_DEBUG() << "Data written to TCP" << interfaceName << ":" << data.toHex();
                return true;
            }
            else
            {
                LOG_WARNING() << "Failed to write all data to TCP" << interfaceName
                           << ". Written:" << bytesWritten << "of" << data.size();
            }
        }
    }
    else if (m_udpSockets.contains(interfaceName))
    {
        QUdpSocket *socket = m_udpSockets[interfaceName];
        if (m_connectionConfigs.contains(interfaceName))
        {
            const ConnectionConfig &config = m_connectionConfigs[interfaceName];
            qint64 bytesWritten = socket->writeDatagram(data, 
                                                       QHostAddress(config.remoteAddress), 
                                                       config.remotePort);
            if (bytesWritten == data.size())
            {
                LOG_DEBUG() << "Data written to UDP" << interfaceName << ":" << data.toHex();
                return true;
            }
            else
            {
                LOG_WARNING() << "Failed to write all data to UDP" << interfaceName
                           << ". Written:" << bytesWritten << "of" << data.size();
            }
        }
    }
    return false;
}

void NetworkManager::setBusCore(DeviceBusCore *busCore)
{
    m_busCore = busCore;
    LOG_INFO() << "Bus core set for NetworkManager";
    
    // 更新线程的busCore
    if (m_storageThread)
    {
        // 需要重新创建线程（因为busCore可能变化）
        cleanupThreads();
        initThreads();
    }
}

DeviceBusCore *NetworkManager::getBusCore() const
{
    return m_busCore;
}

void NetworkManager::discoverNetworkInterfaces()
{
    // 网络接口发现由 NetworkPortWatcher 处理
    // 这里可以做一些额外的处理
    const QList<devices::network::NetworkDeviceInfo> interfaces = m_portWatcher->knownInterfaces();
    QSet<QString> currentInterfaces;

    for (const devices::network::NetworkDeviceInfo &info : interfaces)
    {
        if (!info.isValid() || !info.isUp)
        {
            continue;
        }

        QString interfaceName = info.interfaceName;
        currentInterfaces.insert(interfaceName);

        // 如果是新发现的接口
        if (!m_lastDiscoveredInterfaces.contains(interfaceName))
        {
            registerDiscoveredInterface(info);
            emit interfaceDiscovered(interfaceName, info.description);
            LOG_DEBUG() << "New interface discovered:" << interfaceName << "-" << info.description;
        }
    }

    // 检查是否有接口被移除
    QSet<QString> removedInterfaces = m_lastDiscoveredInterfaces - currentInterfaces;
    for (const QString &interfaceName : removedInterfaces)
    {
        // 如果接口是打开的，先关闭它
        if (m_openedInterfaces.contains(interfaceName))
        {
            closeNetworkConnection(interfaceName);
        }
        if (m_busCore)
        {
            m_busCore->markDeviceOfflineByPort(interfaceName);
        }
        emit interfaceRemoved(interfaceName);
        LOG_DEBUG() << "Interface removed:" << interfaceName;
    }

    // 更新上次发现的接口列表
    m_lastDiscoveredInterfaces = currentInterfaces;
}

void NetworkManager::onTcpReadyRead()
{
    QTcpSocket *socket = qobject_cast<QTcpSocket*>(sender());
    if (!socket)
    {
        return;
    }

    // 找到对应的接口名
    QString interfaceName;
    for (auto it = m_tcpSockets.begin(); it != m_tcpSockets.end(); ++it)
    {
        if (it.value() == socket)
        {
            interfaceName = it.key();
            break;
        }
    }

    if (interfaceName.isEmpty())
    {
        return;
    }

    QByteArray data = socket->readAll();
    if (!data.isEmpty())
    {
        // 发出数据接收信号（用于UI显示）
        LOG_DEBUG() << "Received TCP data from" << interfaceName << ":" << data.toHex();
        emit dataReceived(interfaceName, data);

        // 将数据添加到缓冲区（用于帧拼凑）
        if (m_dataBuffers.contains(interfaceName))
        {
            m_dataBuffers[interfaceName]->appendData(data);
            
            // 通知解析线程有新数据
            if (m_parserThread)
            {
                m_parserThread->notifyNewData(interfaceName);
            }
        }

        // 异步存储原始数据到数据库
        if (m_storageThread)
        {
            // 获取设备ID，如果设备已注册则使用deviceId，否则使用0
            int deviceId = 0;
            if (m_busCore)
            {
                DeviceInfo device = m_busCore->getDeviceInfoByPortname(interfaceName);
                deviceId = device.id;
            }
            m_storageThread->enqueueData(deviceId, interfaceName, data);
        }
    }
}

void NetworkManager::onUdpReadyRead()
{
    QUdpSocket *socket = qobject_cast<QUdpSocket*>(sender());
    if (!socket)
    {
        return;
    }

    // 找到对应的接口名
    QString interfaceName;
    for (auto it = m_udpSockets.begin(); it != m_udpSockets.end(); ++it)
    {
        if (it.value() == socket)
        {
            interfaceName = it.key();
            break;
        }
    }

    if (interfaceName.isEmpty())
    {
        return;
    }

    while (socket->hasPendingDatagrams())
    {
        QByteArray data;
        data.resize(socket->pendingDatagramSize());
        QHostAddress senderAddress;
        quint16 senderPort;
        socket->readDatagram(data.data(), data.size(), &senderAddress, &senderPort);

        if (!data.isEmpty())
        {
            // 发出数据接收信号（用于UI显示）
            LOG_DEBUG() << "Received UDP data from" << interfaceName 
                       << "from" << senderAddress.toString() << ":" << senderPort 
                       << ":" << data.toHex();
            emit dataReceived(interfaceName, data);

            // 将数据添加到缓冲区（用于帧拼凑）
            if (m_dataBuffers.contains(interfaceName))
            {
                m_dataBuffers[interfaceName]->appendData(data);
                
                // 通知解析线程有新数据
                if (m_parserThread)
                {
                    m_parserThread->notifyNewData(interfaceName);
                }
            }

            // 异步存储原始数据到数据库
            if (m_storageThread)
            {
                // 获取设备ID，如果设备已注册则使用deviceId，否则使用0
                int deviceId = 0;
                if (m_busCore)
                {
                    DeviceInfo device = m_busCore->getDeviceInfoByPortname(interfaceName);
                    deviceId = device.id;
                }
                m_storageThread->enqueueData(deviceId, interfaceName, data);
            }
        }
    }
}

void NetworkManager::onNetworkDeviceArrived(const devices::network::NetworkDeviceInfo &info)
{
    if (!info.isValid())
    {
        return;
    }
    
    registerDiscoveredInterface(info);
    emit interfaceDiscovered(info.interfaceName, info.description);
}

void NetworkManager::onNetworkDeviceRemoved(const devices::network::NetworkDeviceInfo &info)
{
    if (!info.isValid())
    {
        return;
    }
    
    // 如果接口是打开的，先关闭它
    if (m_openedInterfaces.contains(info.interfaceName))
    {
        closeNetworkConnection(info.interfaceName);
    }
    
    if (m_busCore)
    {
        m_busCore->markDeviceOfflineByPort(info.interfaceName);
    }
    
    emit interfaceRemoved(info.interfaceName);
}

void NetworkManager::onTcpSocketError(QAbstractSocket::SocketError error)
{
    Q_UNUSED(error);
    QTcpSocket *socket = qobject_cast<QTcpSocket*>(sender());
    if (!socket)
    {
        return;
    }
    
    // 找到对应的接口名
    QString interfaceName;
    for (auto it = m_tcpSockets.begin(); it != m_tcpSockets.end(); ++it)
    {
        if (it.value() == socket)
        {
            interfaceName = it.key();
            break;
        }
    }
    
    if (!interfaceName.isEmpty())
    {
        LOG_WARNING() << "TCP socket error for" << interfaceName << ":" << socket->errorString();
    }
}

void NetworkManager::onTcpConnected()
{
    QTcpSocket *socket = qobject_cast<QTcpSocket*>(sender());
    if (!socket)
    {
        return;
    }
    
    // 找到对应的接口名
    QString interfaceName;
    for (auto it = m_tcpSockets.begin(); it != m_tcpSockets.end(); ++it)
    {
        if (it.value() == socket)
        {
            interfaceName = it.key();
            break;
        }
    }
    
    if (!interfaceName.isEmpty())
    {
        LOG_DEBUG() << "TCP connected for" << interfaceName;
    }
}

void NetworkManager::onTcpDisconnected()
{
    QTcpSocket *socket = qobject_cast<QTcpSocket*>(sender());
    if (!socket)
    {
        return;
    }
    
    // 找到对应的接口名
    QString interfaceName;
    for (auto it = m_tcpSockets.begin(); it != m_tcpSockets.end(); ++it)
    {
        if (it.value() == socket)
        {
            interfaceName = it.key();
            break;
        }
    }
    
    if (!interfaceName.isEmpty())
    {
        LOG_DEBUG() << "TCP disconnected for" << interfaceName;
        if (m_openedInterfaces.contains(interfaceName))
        {
            closeNetworkConnection(interfaceName);
        }
    }
}

void NetworkManager::onRawDataStored(qint64 rawDataId, int deviceId, const QString &interfaceName, const QByteArray &data)
{
    Q_UNUSED(deviceId);
    Q_UNUSED(data);
    QMutexLocker locker(&m_rawDataIdsMutex);
    if (!m_rawDataIds.contains(interfaceName))
    {
        m_rawDataIds[interfaceName] = QQueue<qint64>();
    }
    m_rawDataIds[interfaceName].enqueue(rawDataId);
    // 限制队列大小，避免内存泄漏（保留最近1000条记录）
    while (m_rawDataIds[interfaceName].size() > 1000)
    {
        m_rawDataIds[interfaceName].dequeue();
    }
}

void NetworkManager::initThreads()
{
    // 创建存储线程
    if (!m_storageThread)
    {
        m_storageThread = new NetworkStorageThread(m_busCore, this);
        // 连接原始数据存储完成信号，记录原始数据 id
        connect(m_storageThread, &NetworkStorageThread::rawDataStored,
                this, &NetworkManager::onRawDataStored);
        m_storageThread->start();
        LOG_DEBUG() << "NetworkStorageThread created and started";
    }

    // 创建解析线程
    if (!m_parserThread)
    {
        m_parserThread = new NetworkParserThread(m_busCore, m_pluginManager, this);
        
        // 设置获取原始数据 id 列表的回调函数
        m_parserThread->setRawDataIdsCallback([this](const QString &interfaceName) -> QList<qint64> {
            QMutexLocker locker(&m_rawDataIdsMutex);
            if (m_rawDataIds.contains(interfaceName))
            {
                // 返回该接口的所有原始数据 id（清空队列，因为已经用于组成帧）
                QList<qint64> ids = m_rawDataIds[interfaceName].toList();
                m_rawDataIds[interfaceName].clear();
                return ids;
            }
            return QList<qint64>();
        });
        
        // 连接解析线程的信号
        connect(m_parserThread, &NetworkParserThread::modbusDataParsed,
                this, &NetworkManager::modbusDataParsed);
        connect(m_parserThread, &NetworkParserThread::customDataParsed,
                this, &NetworkManager::customDataParsed);
        
        m_parserThread->start();
        LOG_DEBUG() << "NetworkParserThread created and started";
        
        // 注册已有的缓冲区
        for (auto it = m_dataBuffers.begin(); it != m_dataBuffers.end(); ++it)
        {
            m_parserThread->registerBuffer(it.key(), it.value());
        }
    }
}

void NetworkManager::cleanupThreads()
{
    if (m_storageThread)
    {
        m_storageThread->stop();
        m_storageThread->wait(3000);
        delete m_storageThread;
        m_storageThread = nullptr;
    }

    if (m_parserThread)
    {
        m_parserThread->stop();
        m_parserThread->wait(3000);
        delete m_parserThread;
        m_parserThread = nullptr;
    }
}

void NetworkManager::setPluginManager(ProtocolPluginManager *pluginManager)
{
    m_pluginManager = pluginManager;
    
    // 更新解析线程的插件管理器
    if (m_parserThread)
    {
        m_parserThread->setPluginManager(pluginManager);
    }
}

bool NetworkManager::lockDevice(const QString &deviceId, const QString &taskId)
{
    QMutexLocker locker(&m_deviceLocksMutex);

    if (deviceId.isEmpty() || taskId.isEmpty()) {
        return false;
    }

    // 检查设备是否已被锁定
    if (m_deviceLocks.contains(deviceId)) {
        QString lockingTaskId = m_deviceLocks.value(deviceId);
        if (lockingTaskId != taskId) {
            LOG_WARNING() << "Network device" << deviceId << "is already locked by task" << lockingTaskId;
            return false;
        }
        // 如果是同一个任务，直接返回成功
        return true;
    }

    // 锁定设备
    m_deviceLocks.insert(deviceId, taskId);
    LOG_DEBUG() << "Network device locked:" << deviceId << "by task:" << taskId;
    return true;
}

bool NetworkManager::unlockDevice(const QString &deviceId, const QString &taskId)
{
    QMutexLocker locker(&m_deviceLocksMutex);

    if (deviceId.isEmpty() || taskId.isEmpty()) {
        return false;
    }

    if (!m_deviceLocks.contains(deviceId)) {
        LOG_WARNING() << "Network device" << deviceId << "is not locked";
        return false;
    }

    QString lockingTaskId = m_deviceLocks.value(deviceId);
    if (lockingTaskId != taskId) {
        LOG_WARNING() << "Network device" << deviceId << "is locked by different task:" 
                     << lockingTaskId << "not" << taskId;
        return false;
    }

    m_deviceLocks.remove(deviceId);
    LOG_DEBUG() << "Network device unlocked:" << deviceId << "by task:" << taskId;
    return true;
}

bool NetworkManager::isDeviceLocked(const QString &deviceId) const
{
    QMutexLocker locker(&m_deviceLocksMutex);
    return m_deviceLocks.contains(deviceId);
}

void NetworkManager::registerDiscoveredInterface(const devices::network::NetworkDeviceInfo &info)
{
    if (!m_busCore)
    {
        LOG_DEBUG() << "Bus core is not set; skip registering interface" << info.interfaceName;
        return;
    }

    if (!info.isValid() || !info.isUp)
    {
        LOG_DEBUG() << "Skip registering invalid or down interface" << info.interfaceName;
        return;
    }

    const QString interfaceName = info.interfaceName;
    DeviceInfo existingDevice = m_busCore->getDeviceInfoByPortname(interfaceName);
    if (existingDevice.id != 0)
    {
        // 已经注册的设备，如果描述或属性发生变化，更新一次
        QString desiredName = info.description.isEmpty()
                                  ? QStringLiteral("网络设备: %1").arg(interfaceName)
                                  : info.description;

        QJsonObject updatedProperties = existingDevice.properties;
        auto mergeProperty = [&updatedProperties](const QString &key, const QString &value) {
            if (value.isEmpty())
            {
                return false;
            }
            if (!updatedProperties.contains(key) || updatedProperties.value(key).toString() != value)
            {
                updatedProperties.insert(key, value);
                return true;
            }
            return false;
        };

        bool propertyChanged = false;
        propertyChanged |= mergeProperty(QStringLiteral("description"), info.description);
        propertyChanged |= mergeProperty(QStringLiteral("hardwareAddress"), info.hardwareAddress);
        propertyChanged |= mergeProperty(QStringLiteral("ipv4Address"), info.ipv4Address);
        propertyChanged |= mergeProperty(QStringLiteral("ipv4Netmask"), info.ipv4Netmask);
        propertyChanged |= mergeProperty(QStringLiteral("ipv4Gateway"), info.ipv4Gateway);
        propertyChanged |= mergeProperty(QStringLiteral("ipv6Address"), info.ipv6Address);
        
        // DNS服务器列表
        if (!info.dnsServers.isEmpty())
        {
            QJsonArray dnsArray;
            for (const QString &dns : info.dnsServers)
            {
                dnsArray.append(dns);
            }
            QString dnsStr = QJsonDocument(dnsArray).toJson(QJsonDocument::Compact);
            propertyChanged |= mergeProperty(QStringLiteral("dnsServers"), dnsStr);
        }

        bool nameChanged = existingDevice.name != desiredName;

        const bool needFullUpdate = nameChanged || propertyChanged;
        if (needFullUpdate)
        {
            existingDevice.name = desiredName;
            existingDevice.properties = updatedProperties;
            existingDevice.status = QStringLiteral("online");
            existingDevice.isActive = true;
            existingDevice.lastSeen = QDateTime::currentDateTimeUtc();
            m_busCore->updateDevice(existingDevice);
            LOG_DEBUG() << "Updated existing network device registration for interface" << interfaceName;
        }

        if (!needFullUpdate)
        {
            m_busCore->updateDeviceStatus(existingDevice.id, QStringLiteral("online"), true,
                                          QDateTime::currentDateTimeUtc());
        }
        return;
    }

    DeviceInfo device;
    device.id = generateNextDeviceId();
    if (device.id <= 0)
    {
        LOG_WARNING() << "Failed to allocate device ID for interface" << interfaceName;
        return;
    }

    device.portname = interfaceName;
    device.type = QStringLiteral("ethernet");
    device.protocol = QStringLiteral("modbus");
    device.protocol_detail = QStringLiteral("modbus-tcp");
    device.address = 0;
    device.status = QStringLiteral("online");
    device.isActive = true;
    device.lastSeen = QDateTime::currentDateTimeUtc();

    if (info.description.isEmpty())
    {
        device.name = QStringLiteral("网络设备: %1").arg(interfaceName);
    }
    else if (info.description.contains(interfaceName))
    {
        device.name = info.description;
    }
    else
    {
        device.name = QStringLiteral("%1 (%2)").arg(info.description, interfaceName);
    }

    QJsonObject properties;
    if (!info.description.isEmpty())
    {
        properties.insert(QStringLiteral("description"), info.description);
    }
    if (!info.hardwareAddress.isEmpty())
    {
        properties.insert(QStringLiteral("hardwareAddress"), info.hardwareAddress);
    }
    if (!info.ipv4Address.isEmpty())
    {
        properties.insert(QStringLiteral("ipv4Address"), info.ipv4Address);
        properties.insert(QStringLiteral("ip"), info.ipv4Address); // 兼容Modbus TCP配置
    }
    if (!info.ipv4Netmask.isEmpty())
    {
        properties.insert(QStringLiteral("ipv4Netmask"), info.ipv4Netmask);
    }
    if (!info.ipv4Gateway.isEmpty())
    {
        properties.insert(QStringLiteral("ipv4Gateway"), info.ipv4Gateway);
    }
    if (!info.ipv6Address.isEmpty())
    {
        properties.insert(QStringLiteral("ipv6Address"), info.ipv6Address);
    }
    if (!info.dnsServers.isEmpty())
    {
        QJsonArray dnsArray;
        for (const QString &dns : info.dnsServers)
        {
            dnsArray.append(dns);
        }
        properties.insert(QStringLiteral("dnsServers"), dnsArray);
    }
    // 默认Modbus TCP端口
    properties.insert(QStringLiteral("port"), 502);

    device.properties = properties;

    m_busCore->registerDevice(device);
    m_busCore->updateDeviceStatus(device.id, QStringLiteral("online"), true,
                                  device.lastSeen);
    LOG_DEBUG() << "Registered network device in bus core for interface" << interfaceName << "with id" << device.id;
}

int NetworkManager::generateNextDeviceId() const
{
    if (!m_busCore)
    {
        return -1;
    }

    // 使用 DeviceBusCore 的 generateNextDeviceId，确保按照分配规则生成
    // 网络设备范围：30000-39999
    return m_busCore->generateNextDeviceId(QStringLiteral("ethernet"));
}