#include "ParkingSpaceGuidePresenter.h"

#include <algorithm>
#include <chrono>
#include <cstring>
#include <exception>
#include <fstream>

#include <QDateTime>
#include <QJsonDocument>
#include <QJsonObject>

#include "DetectPresenter.h"
#include "IYUDPClient.h"
#include "ParkingStatusHttpServer.h"
#include "PathManager.h"
#include "Version.h"
#include "VrLog.h"

namespace {

constexpr int kMvsPixelTypeMono8 = 0x01080001;
constexpr int kMvsPixelTypeRGB8 = 0x02180014;
constexpr int kMvsPixelTypeBGR8 = 0x02180015;
constexpr int kMvsAcqModeContinuous = 2;
constexpr int kAirplaneProbeIntervalMs = 1000;
constexpr unsigned int kModelCaptureTimeoutMs = 1000;

QString ConfigText(const std::string& value, const QString& fallback)
{
    const QString text = QString::fromStdString(value).trimmed();
    return text.isEmpty() ? fallback : text;
}

QString ResultText(const QString& value, const QString& fallback)
{
    const QString text = value.trimmed();
    return text.isEmpty() ? fallback : text;
}

ParkingSpaceGuideInfo FallbackGuideInfo(const UdpBroadcastConfig& config)
{
    ParkingSpaceGuideInfo info;
    info.targetId = ConfigText(config.targetId, QStringLiteral("T001"));
    info.parkId = ConfigText(config.parkId, QStringLiteral("P01"));
    info.modelType = QStringLiteral("未知");
    return info;
}

bool IsExceptionGuideState(int guideStateCode)
{
    switch (guideStateCode) {
    case 10:
    case 11:
    case 12:
    case 13:
    case 14:
    case 15:
    case 16:
    case 17:
    case 18:
    case 19:
    case 20:
    case 21:
    case 22:
    case 23:
    case 24:
        return true;
    default:
        return false;
    }
}

QJsonObject BuildGuideInfoJson(const ParkingSpaceGuideInfo& info,
                               const UdpBroadcastConfig& config)
{
    const ParkingSpaceGuideInfo fallback = FallbackGuideInfo(config);

    QJsonObject object;
    object["targetId"] = ResultText(info.targetId, fallback.targetId);
    object["parkId"] = ResultText(info.parkId, fallback.parkId);
    object["modelType"] = ResultText(info.modelType, fallback.modelType);
    object["guideStateCode"] = info.guideStateCode;
    object["distanceToStop"] = info.distance;
    object["bodyYawAngle"] = info.angle;
    object["lateralOffset"] = info.lateralOffset;
    object["aircraftSpeed"] = info.aircraftSpeed;
    object["hasException"] = info.hasException || IsExceptionGuideState(info.guideStateCode);
    object["guideText"] = info.guideText;
    return object;
}

QJsonObject BuildDetectionResultPayload(const DetectionResult& result,
                                        const UdpBroadcastConfig& config)
{
    const bool hasResult = !result.parkingSpaceInfoList.empty();
    const bool success = result.errorCode == 0 && hasResult;
    const ParkingSpaceGuideInfo firstInfo = hasResult
        ? result.parkingSpaceInfoList.front()
        : FallbackGuideInfo(config);
    const QJsonObject firstResult = BuildGuideInfoJson(firstInfo, config);

    QJsonObject payload;
    payload["protocol"] = QStringLiteral("ParkingSpaceGuideResult");
    payload["version"] = QStringLiteral("1.0");
    payload["success"] = success;
    payload["hasResult"] = hasResult;
    payload["targetId"] = firstResult["targetId"];
    payload["parkId"] = firstResult["parkId"];
    payload["modelType"] = firstResult["modelType"];
    payload["guideStateCode"] = firstResult["guideStateCode"];
    payload["distanceToStop"] = firstResult["distanceToStop"];
    payload["bodyYawAngle"] = firstResult["bodyYawAngle"];
    payload["lateralOffset"] = firstResult["lateralOffset"];
    payload["aircraftSpeed"] = firstResult["aircraftSpeed"];
    payload["hasException"] = result.errorCode != 0 || firstResult["hasException"].toBool();
    payload["guideText"] = firstResult["guideText"];
    payload["message"] = result.message;
    payload["errorCode"] = result.errorCode;
    payload["timestamp"] = QDateTime::currentMSecsSinceEpoch();
    return payload;
}

} // namespace

ParkingSpaceGuidePresenter::ParkingSpaceGuidePresenter(QObject* parent)
    : QObject(parent)
{
}

ParkingSpaceGuidePresenter::~ParkingSpaceGuidePresenter()
{
    DeinitApp();
}

int ParkingSpaceGuidePresenter::Init()
{
    m_reconfiguring.store(false);
    NotifyWorkStatus(WorkStatus::InitIng);
    NotifyStatus("停车引导初始化中");

    int ret = InitConfig();
    if (ret != 0) {
        NotifyWorkStatus(WorkStatus::Error);
        return ret;
    }

    const ConfigResult config = m_configManager->GetConfigResult();
    m_cameraList.clear();

    DetectionResult initialStatus;
    initialStatus.errorCode = -1;
    initialStatus.message = QStringLiteral("暂无检测结果");
    UpdateCurrentStatus(initialStatus);

    m_detectPresenter = new DetectPresenter();

    ret = InitMvsCamera(config.mvsCamera);
    if (ret != 0) {
        NotifyStatus("平面相机初始化失败，继续使用预留算法模式");
    }
    if (m_cameraList.empty()) {
        const std::string cameraName = config.mvsCamera.serialNumber.empty()
            ? std::string("平面相机")
            : config.mvsCamera.serialNumber;
        m_cameraList.push_back(std::make_pair(cameraName, static_cast<void*>(m_mvsDevice)));
    }

    ret = InitRsLidar(config.lidarConfig);
    if (ret != 0) {
        NotifyStatus("雷达初始化失败，继续使用预留算法模式");
    }

    ret = InitLedDisplay(config.ledDisplayConfig);
    if (ret != 0) {
        NotifyStatus("显示屏初始化失败");
    }

    ret = InitUdpBroadcast(config.udpBroadcastConfig);
    if (ret != 0) {
        NotifyStatus("组播初始化失败");
    }

    ret = InitHttpServer(config.httpServerConfig);
    if (ret != 0) {
        NotifyStatus("HTTP状态服务初始化失败");
    }

    if (StatusCallback()) {
        StatusCallback()->OnCameraCountChanged(1);
    }

    m_initialized = true;
    NotifyWorkStatus(WorkStatus::Ready);
    NotifyStatus("停车引导初始化完成");
    return 0;
}

void ParkingSpaceGuidePresenter::DeinitApp()
{
    m_initialized.store(false);
    {
        std::lock_guard<std::mutex> reconfigurationLock(m_reconfigurationMutex);
        m_reconfiguring.store(true);
        StopDetection();
        CloseDevices();

        delete m_detectPresenter;
        m_detectPresenter = nullptr;
    }

    if (m_configManager) {
        m_configManager->Shutdown();
        delete m_configManager;
        m_configManager = nullptr;
    }
}

bool ParkingSpaceGuidePresenter::StartDetection(int cameraIndex)
{
    std::lock_guard<std::mutex> threadLock(m_detectionThreadMutex);
    if (!m_initialized || m_reconfiguring.load() || !m_detectPresenter || !m_configManager) {
        NotifyStatus("系统未初始化");
        return false;
    }
    if (!m_lidarDevice || !m_lidarDevice->IsRunning()) {
        NotifyStatus("雷达未连接，无法启动实时检测");
        return false;
    }

    if (m_detectionRunning.load()) {
        NotifyStatus("停车引导实时检测已在运行");
        return true;
    }

    if (m_detectionThread.joinable()) {
        m_detectionThread.join();
    }

    if (cameraIndex > 0) {
        m_detectIndex = cameraIndex;
    } else {
        m_detectIndex = m_currentCameraIndex;
    }

    {
        std::lock_guard<std::mutex> dataLock(m_dataMutex);
        m_consumedCloudSequence = m_cloudSequence;
        m_lidarErrorPending = false;
        m_lidarErrorMessage.clear();
    }
    m_trackingMode.store(false);
    m_lastProbeAcceptedMs.store(0);
    m_stopDetectionRequested.store(false);
    m_detectionRunning.store(true);
    try {
        m_detectionThread = std::thread(&ParkingSpaceGuidePresenter::DetectionLoop, this);
    } catch (...) {
        m_detectionRunning.store(false);
        m_stopDetectionRequested.store(true);
        NotifyWorkStatus(WorkStatus::Error);
        NotifyStatus("启动停车引导实时检测线程失败");
        return false;
    }

    NotifyWorkStatus(WorkStatus::Working);
    NotifyStatus("停车引导实时检测已开始");
    return true;
}

bool ParkingSpaceGuidePresenter::TriggerDetection(int cameraIndex)
{
    std::lock_guard<std::mutex> threadLock(m_detectionThreadMutex);
    if (!m_initialized || m_reconfiguring.load() || !m_detectPresenter || !m_configManager) {
        NotifyStatus("系统未初始化");
        return false;
    }

    if (m_detectionRunning.load()) {
        NotifyStatus("实时检测运行中，无法执行单次检测");
        return false;
    }

    if (cameraIndex > 0) {
        m_detectIndex = cameraIndex;
    } else {
        m_detectIndex = m_currentCameraIndex;
    }

    std::shared_ptr<const OwnedCloudFrame> cloudFrame;
    {
        std::lock_guard<std::mutex> dataLock(m_dataMutex);
        cloudFrame = m_latestCloudFrame;
    }
    if (!cloudFrame) {
        NotifyStatus("暂无可用雷达点云");
        return false;
    }

    NotifyWorkStatus(WorkStatus::Detecting);
    NotifyStatus("停车引导单次检测已开始");
    bool success = false;
    ParkingGuideAlgorithmState algorithmState;
    try {
        success = DetectOnce(cloudFrame->cloud, algorithmState);
    } catch (const std::exception& e) {
        NotifyStatus(std::string("停车引导单次检测异常：") + e.what());
    } catch (...) {
        NotifyStatus("停车引导单次检测发生未知异常");
    }
    NotifyWorkStatus(success ? WorkStatus::Completed : WorkStatus::Error);
    NotifyStatus(success ? "停车引导单次检测完成"
                         : "停车引导单次检测失败");
    return success;
}

bool ParkingSpaceGuidePresenter::DetectOnce(const RsCloudData& cloud,
                                            ParkingGuideAlgorithmState& algorithmState)
{
    std::lock_guard<std::mutex> executionLock(m_detectionExecutionMutex);
    if (!m_detectPresenter || !m_configManager) {
        return false;
    }

    DetectionResult result;
    ParkingGuideAlgorithmControl control;
    result.cameraIndex = m_detectIndex;
    const int ret = m_detectPresenter->DetectParkingSpaceGuide(cloud,
                                                               m_configManager->GetAlgorithmParams(),
                                                               algorithmState,
                                                               result,
                                                               control);
    result.cameraIndex = m_detectIndex;

    if (ret != 0) {
        result.errorCode = ret;
        if (result.message.isEmpty()) {
            result.message = QStringLiteral("停车引导检测失败");
        }
    } else {
        if (result.parkingSpaceInfoList.empty() && result.message.isEmpty()) {
            result.message = QStringLiteral("无停车引导结果");
        }

        if (control.needModelRecognition) {
            const auto appendRecognitionFailure = [this, &result, &control](const QString& reason) {
                const QString text = reason.trimmed().isEmpty()
                    ? QStringLiteral("机型识别失败")
                    : reason.trimmed();
                NotifyStatus(text.toUtf8().toStdString());
                result.message = result.message.trimmed().isEmpty()
                    ? text
                    : result.message + QStringLiteral("；") + text;
                if (control.nextState.modelRecognitionAttempts >= 2) {
                    for (ParkingSpaceGuideInfo& info : result.parkingSpaceInfoList) {
                        info.hasException = true;
                        info.guideStateCode = static_cast<int>(
                            ParkingGuideState::AircraftVerificationFailed);
                        info.guideText = QStringLiteral("STOP+IDFAIL");
                    }
                }
            };

            try {
                QImage modelImage;
                QString captureError;
                if (!CaptureModelRecognitionImage(modelImage, captureError)) {
                    appendRecognitionFailure(captureError);
                } else {
                    result.image = modelImage;
                    ModelRecognitionResult modelResult;
                    const int modelRet = m_detectPresenter->RecognizeModel2D(
                        modelImage,
                        control.recognitionContext,
                        modelResult);
                    const double minimumConfidence =
                        m_configManager->GetAlgorithmParams().guideParam.confidenceThreshold;

                    if (modelRet == 0 && modelResult.IsVerified(minimumConfidence)) {
                        control.nextState.modelType = modelResult.modelType.trimmed();
                        control.nextState.modelConfidence = modelResult.confidence;
                        control.nextState.modelVerified = true;
                        for (ParkingSpaceGuideInfo& info : result.parkingSpaceInfoList) {
                            info.modelType = control.nextState.modelType;
                            info.confidence = control.nextState.modelConfidence;
                        }
                    } else {
                        const QString reason = modelResult.message.trimmed().isEmpty()
                            ? QStringLiteral("机型识别结果未通过验证")
                            : modelResult.message;
                        appendRecognitionFailure(reason);
                    }
                }
            } catch (const std::exception& e) {
                appendRecognitionFailure(
                    QStringLiteral("机型识别异常：%1").arg(QString::fromUtf8(e.what())));
            } catch (...) {
                appendRecognitionFailure(QStringLiteral("机型识别发生未知异常"));
            }
        }
    }

    if (ret == 0) {
        algorithmState = control.nextState;
    }
    PublishDetectionResult(result);
    return ret == 0;
}

std::shared_ptr<ParkingSpaceGuidePresenter::OwnedCloudFrame>
ParkingSpaceGuidePresenter::AcquireCloudFrameBuffer()
{
    std::lock_guard<std::mutex> dataLock(m_dataMutex);
    for (size_t i = 0; i < m_cloudFrameSlots.size(); ++i) {
        const size_t slotIndex = (m_nextCloudFrameSlot + i) % m_cloudFrameSlots.size();
        std::shared_ptr<OwnedCloudFrame>& slot = m_cloudFrameSlots[slotIndex];
        if (!slot) {
            slot = std::make_shared<OwnedCloudFrame>();
        }
        if (slot.use_count() == 1) {
            m_nextCloudFrameSlot = (slotIndex + 1) % m_cloudFrameSlots.size();
            return slot;
        }
    }
    return std::shared_ptr<OwnedCloudFrame>();
}

bool ParkingSpaceGuidePresenter::CopyCloudFrame(const RsCloudData& cloud,
                                                const RsFrameInfo& info,
                                                OwnedCloudFrame& destination)
{
    size_t totalPointCount = 0;
    for (const auto& item : cloud) {
        const SVzLaserLineData& line = item.second;
        if (item.first != keResultDataType_PointXYZI ||
            line.nPointCount < 0 ||
            (line.nPointCount > 0 && !line.p3DPoint)) {
            return false;
        }
        totalPointCount += static_cast<size_t>(line.nPointCount);
    }

    destination.points.resize(totalPointCount);
    destination.cloud.clear();
    destination.cloud.reserve(cloud.size());
    destination.info = info;

    size_t pointOffset = 0;
    for (const auto& item : cloud) {
        SVzLaserLineData line = item.second;
        line.p2DPoint = nullptr;
        if (line.nPointCount > 0) {
            SVzNLPointXYZI* target = destination.points.data() + pointOffset;
            std::memcpy(target,
                        line.p3DPoint,
                        sizeof(SVzNLPointXYZI) * static_cast<size_t>(line.nPointCount));
            line.p3DPoint = target;
            pointOffset += static_cast<size_t>(line.nPointCount);
        } else {
            line.p3DPoint = nullptr;
        }
        destination.cloud.emplace_back(item.first, line);
    }
    return true;
}

bool ParkingSpaceGuidePresenter::ProcessAirplanePresence(const RsCloudData& cloud)
{
    AirplanePresenceResult presence;
    const int ret = m_detectPresenter->DetectAirplanePresence(
        cloud,
        m_configManager->GetAlgorithmParams(),
        presence);
    if (ret != 0) {
        const QString message = presence.message.trimmed().isEmpty()
            ? QStringLiteral("飞机存在检测失败")
            : presence.message.trimmed();
        PublishErrorResult(ret, message);
        return false;
    }

    if (presence.state == AirplanePresenceState::Detected) {
        NotifyStatus("检测到飞机，进入引导检测");
        return true;
    }

    ParkingGuideState guideState = ParkingGuideState::Unknown;
    QString guideText;
    if (presence.state == AirplanePresenceState::GateBlocked) {
        guideState = ParkingGuideState::GateBlocked;
        guideText = QStringLiteral("GATEBLOCK");
    } else if (presence.state == AirplanePresenceState::ViewBlocked) {
        guideState = ParkingGuideState::ViewBlocked;
        guideText = QStringLiteral("VIEWBLOCKED");
    } else {
        return false;
    }

    DetectionResult result;
    ParkingSpaceGuideInfo info;
    info.hasException = true;
    info.guideStateCode = static_cast<int>(guideState);
    info.guideText = guideText;
    result.parkingSpaceInfoList.push_back(info);
    result.message = presence.message.trimmed().isEmpty() ? guideText : presence.message.trimmed();
    PublishDetectionResult(result);
    return false;
}

void ParkingSpaceGuidePresenter::PublishDetectionResult(DetectionResult& result)
{
    EnrichDetectionResult(result);
    if (StatusCallback()) {
        StatusCallback()->OnDetectionResult(result);
    }

    UpdateCurrentStatus(result);
    if (m_ledDisplay) {
        m_ledDisplay->SendResult(ConvertLedResult(result));
    }
    BroadcastDetectionResult(result);
}

void ParkingSpaceGuidePresenter::PublishErrorResult(int errorCode, const QString& message)
{
    DetectionResult result;
    result.errorCode = errorCode == 0 ? -1 : errorCode;
    result.message = message;
    PublishDetectionResult(result);
}

bool ParkingSpaceGuidePresenter::CaptureModelRecognitionImage(QImage& image,
                                                               QString& errorMessage)
{
    image = QImage();
    errorMessage.clear();
    if (!m_mvsDevice || !m_mvsDevice->IsDeviceOpen() || !m_mvsDevice->IsAcquisitioning()) {
        errorMessage = QStringLiteral("机型识别相机不可用，雷达引导继续");
        return false;
    }

    int ret = m_mvsDevice->SendSoftTrigger();
    if (ret != 0) {
        errorMessage = QStringLiteral("机型识别相机软触发失败：%1").arg(ret);
        return false;
    }

    MvsImageData captured;
    ret = m_mvsDevice->CaptureImage(captured, kModelCaptureTimeoutMs);
    std::unique_ptr<unsigned char[]> capturedData(captured.pData);
    if (ret != 0 || !captured.pData) {
        errorMessage = QStringLiteral("获取机型识别图像失败：%1").arg(ret);
        return false;
    }

    if (!CacheMvsFrame(captured, image)) {
        errorMessage = QStringLiteral("机型识别图像格式无效");
        return false;
    }
    return true;
}

void ParkingSpaceGuidePresenter::DetectionLoop()
{
    ParkingGuideAlgorithmState algorithmState;
    while (!m_stopDetectionRequested.load()) {
        std::shared_ptr<const OwnedCloudFrame> cloudFrame;
        QString lidarError;
        {
            std::unique_lock<std::mutex> dataLock(m_dataMutex);
            m_detectionCondition.wait(dataLock, [this]() {
                return m_stopDetectionRequested.load() ||
                       m_lidarErrorPending ||
                       m_cloudSequence != m_consumedCloudSequence;
            });
            if (m_stopDetectionRequested.load()) {
                break;
            }

            if (m_lidarErrorPending) {
                lidarError = m_lidarErrorMessage;
                m_lidarErrorPending = false;
            } else {
                cloudFrame = m_latestCloudFrame;
                m_consumedCloudSequence = m_cloudSequence;
            }
        }

        if (!lidarError.isEmpty()) {
            PublishErrorResult(-1, lidarError);
            m_stopDetectionRequested.store(true);
            m_detectionRunning.store(false);
            m_trackingMode.store(false);
            NotifyWorkStatus(WorkStatus::Error);
            break;
        }
        if (!cloudFrame) {
            continue;
        }

        try {
            if (!m_trackingMode.load()) {
                if (ProcessAirplanePresence(cloudFrame->cloud)) {
                    m_trackingMode.store(true);
                }
                continue;
            }
            DetectOnce(cloudFrame->cloud, algorithmState);
        } catch (const std::exception& e) {
            PublishErrorResult(-1,
                QStringLiteral("停车引导检测异常：%1")
                    .arg(QString::fromUtf8(e.what())));
        } catch (...) {
            PublishErrorResult(-1, QStringLiteral("停车引导检测发生未知异常"));
        }
    }

    m_detectionRunning.store(false);
    m_trackingMode.store(false);
}

int ParkingSpaceGuidePresenter::StopDetection()
{
    std::lock_guard<std::mutex> threadLock(m_detectionThreadMutex);
    const bool wasRunning = m_detectionRunning.load();
    {
        std::lock_guard<std::mutex> dataLock(m_dataMutex);
        m_stopDetectionRequested.store(true);
    }
    m_detectionCondition.notify_all();

    if (m_detectionThread.joinable() &&
        m_detectionThread.get_id() != std::this_thread::get_id()) {
        m_detectionThread.join();
    }
    m_detectionRunning.store(false);
    m_trackingMode.store(false);
    m_lastProbeAcceptedMs.store(0);

    if (wasRunning) {
        NotifyWorkStatus(WorkStatus::Ready);
        NotifyStatus("停车引导实时检测已停止");
    }
    return 0;
}

bool ParkingSpaceGuidePresenter::IsDetectionRunning() const
{
    return m_detectionRunning.load();
}

int ParkingSpaceGuidePresenter::LoadAndDetect(const QString& fileName)
{
    Q_UNUSED(fileName);
    return TriggerDetection(m_currentCameraIndex) ? 0 : -1;
}

int ParkingSpaceGuidePresenter::SaveDetectionDataToFile(const std::string& filePath)
{
    std::lock_guard<std::mutex> lock(m_dataMutex);

    std::ofstream file(filePath.c_str(), std::ios::out | std::ios::trunc);
    if (!file.is_open()) {
        return -1;
    }

    file << "ParkingSpaceGuide cached data\n";
    file << "hasFrame=" << (m_hasFrame ? 1 : 0) << "\n";
    file << "frameWidth=" << m_latestFrameInfo.width << "\n";
    file << "frameHeight=" << m_latestFrameInfo.height << "\n";
    file << "hasCloud=" << (m_latestCloudFrame ? 1 : 0) << "\n";
    file << "cloudLines=" << (m_latestCloudFrame ? m_latestCloudFrame->cloud.size() : 0) << "\n";
    return 0;
}

int ParkingSpaceGuidePresenter::GetDetectionDataCacheSize() const
{
    std::lock_guard<std::mutex> lock(m_dataMutex);
    return (m_hasFrame ? 1 : 0) + (m_latestCloudFrame ? 1 : 0);
}

void ParkingSpaceGuidePresenter::SetDefaultCameraIndex(int cameraIndex)
{
    m_currentCameraIndex = (std::max)(1, cameraIndex);
}

int ParkingSpaceGuidePresenter::GetDetectIndex() const
{
    return m_detectIndex;
}

QString ParkingSpaceGuidePresenter::GetAlgoVersion() const
{
    return DetectPresenter::GetAlgoVersion();
}

ConfigManager* ParkingSpaceGuidePresenter::GetConfigManager()
{
    return m_configManager;
}

std::vector<std::pair<std::string, void*>> ParkingSpaceGuidePresenter::GetCameraList() const
{
    return m_cameraList;
}

void ParkingSpaceGuidePresenter::OnConfigChanged(const ConfigResult& configResult)
{
    std::lock_guard<std::mutex> reconfigurationLock(m_reconfigurationMutex);
    if (!m_initialized) {
        return;
    }

    m_reconfiguring.store(true);
    const bool restartDetection = m_detectionRunning.load();
    const int detectIndex = m_detectIndex;
    StopDetection();

    NotifyStatus("配置已变更，正在重新连接设备");
    InitMvsCamera(configResult.mvsCamera);
    InitRsLidar(configResult.lidarConfig);
    InitLedDisplay(configResult.ledDisplayConfig);
    InitUdpBroadcast(configResult.udpBroadcastConfig);
    InitHttpServer(configResult.httpServerConfig);

    m_reconfiguring.store(false);
    if (restartDetection) {
        StartDetection(detectIndex);
    }
}

IYParkingSpaceGuideStatus* ParkingSpaceGuidePresenter::StatusCallback() const
{
    return static_cast<IYParkingSpaceGuideStatus*>(m_statusCallback);
}

int ParkingSpaceGuidePresenter::InitConfig()
{
    if (!m_configManager) {
        m_configManager = new ConfigManager();
    }

    if (!m_configManager->Initialize(PathManager::GetInstance().GetConfigFilePath().toStdString())) {
        NotifyStatus("初始化配置管理器失败");
        return -1;
    }

    ConfigResult config = m_configManager->GetConfigResult();
    config.Normalize();
    SystemConfig systemConfig = m_configManager->GetConfig();
    systemConfig.configResult = config;
    m_configManager->UpdateFullConfig(systemConfig);
    return 0;
}

int ParkingSpaceGuidePresenter::InitMvsCamera(const MvsCameraConfig& config)
{
    auto closeMvsDevice = [this]() {
        if (!m_mvsDevice) {
            return;
        }

        m_mvsDevice->StopAcquisition();
        m_mvsDevice->UnregisterImageCallback();
        m_mvsDevice->CloseDevice();
        m_mvsDevice->UninitSDK();
        delete m_mvsDevice;
        m_mvsDevice = nullptr;
    };

    closeMvsDevice();
    m_cameraList.clear();
    {
        std::lock_guard<std::mutex> lock(m_dataMutex);
        m_latestFrame.clear();
        m_latestFrameInfo = CameraFrameInfo();
        m_hasFrame = false;
    }

    if (!config.enabled) {
        NotifyCameraStatus(false);
        NotifyStatus("平面相机未启用");
        m_cameraList.push_back(std::make_pair(std::string("平面相机"), static_cast<void*>(nullptr)));
        return 0;
    }

    if (IMvsDevice::CreateObject(&m_mvsDevice) != 0 || !m_mvsDevice) {
        NotifyCameraStatus(false);
        NotifyStatus("创建平面相机设备失败");
        return -1;
    }

    int ret = m_mvsDevice->InitSDK();
    if (ret != 0) {
        NotifyCameraStatus(false);
        NotifyStatus("平面相机SDK初始化失败：" + std::to_string(ret));
        closeMvsDevice();
        return ret;
    }

    std::vector<MvsDeviceInfo> devices;
    ret = m_mvsDevice->EnumerateDevices(devices);
    if (ret != 0 || devices.empty()) {
        NotifyCameraStatus(false);
        NotifyStatus(ret != 0
            ? "搜索平面相机失败：" + std::to_string(ret)
            : "未搜索到平面相机");
        closeMvsDevice();
        return ret != 0 ? ret : -1;
    }

    NotifyStatus("搜索到平面相机数量：" + std::to_string(devices.size()));

    if (!config.serialNumber.empty()) {
        ret = m_mvsDevice->OpenDevice(config.serialNumber);
    } else {
        unsigned int deviceIndex = static_cast<unsigned int>((std::max)(0, config.deviceIndex));
        if (deviceIndex >= devices.size()) {
            NotifyStatus("相机设备序号超出范围，使用第0台设备");
            deviceIndex = 0;
        }
        ret = m_mvsDevice->OpenDeviceByIndex(deviceIndex);
    }

    if (ret != 0) {
        NotifyCameraStatus(false);
        NotifyStatus("打开平面相机失败：" + std::to_string(ret));
        closeMvsDevice();
        return ret;
    }

    MvsDeviceInfo openedInfo;
    std::string cameraName = config.serialNumber.empty() ? std::string("平面相机") : config.serialNumber;
    if (m_mvsDevice->GetDeviceInfo(openedInfo) == 0) {
        if (!openedInfo.displayName.empty()) {
            cameraName = openedInfo.displayName;
        } else if (!openedInfo.serialNumber.empty()) {
            cameraName = openedInfo.serialNumber;
        }
    }
    ret = m_mvsDevice->SetEnumFeature("AcquisitionMode", kMvsAcqModeContinuous);
    if (ret != 0) {
        NotifyStatus("设置平面相机连续采集模式失败，继续使用当前模式：" + std::to_string(ret));
    }

    ret = m_mvsDevice->SetEnumFeature("PixelFormat", kMvsPixelTypeMono8);
    if (ret != 0) {
        NotifyStatus("设置平面相机灰度格式失败，继续使用当前格式：" + std::to_string(ret));
    }

    ret = m_mvsDevice->SetTriggerMode(true);
    if (ret != 0) {
        NotifyCameraStatus(false);
        NotifyStatus("启用机型识别相机触发模式失败：" + std::to_string(ret));
        closeMvsDevice();
        return ret;
    }

    ret = m_mvsDevice->SetEnumFeatureByString("TriggerSource", "Software");
    if (ret != 0) {
        NotifyCameraStatus(false);
        NotifyStatus("设置机型识别相机软触发源失败：" + std::to_string(ret));
        closeMvsDevice();
        return ret;
    }

    ret = m_mvsDevice->StartAcquisition();
    if (ret != 0) {
        NotifyCameraStatus(false);
        NotifyStatus("启动平面相机采集失败：" + std::to_string(ret));
        closeMvsDevice();
        return ret;
    }

    NotifyCameraStatus(true);
    m_cameraList.push_back(std::make_pair(cameraName, static_cast<void*>(m_mvsDevice)));
    NotifyStatus("平面相机已连接：" + cameraName);
    return 0;
}

int ParkingSpaceGuidePresenter::InitRsLidar(const RsLidarConfig& config)
{
    if (m_lidarDevice) {
        m_lidarDevice->Stop();
        m_lidarDevice->CloseDevice();
        delete m_lidarDevice;
        m_lidarDevice = nullptr;
    }

    {
        std::lock_guard<std::mutex> dataLock(m_dataMutex);
        m_latestCloudFrame.reset();
        for (std::shared_ptr<OwnedCloudFrame>& slot : m_cloudFrameSlots) {
            slot.reset();
        }
        m_nextCloudFrameSlot = 0;
        m_cloudSequence = 0;
        m_consumedCloudSequence = 0;
        m_lidarErrorPending = false;
        m_lidarErrorMessage.clear();
    }
    m_trackingMode.store(false);
    m_lastProbeAcceptedMs.store(0);
    m_cloudCopyErrorReported.store(false);

    if (IRsLidarDevice::CreateObject(&m_lidarDevice) != 0 || !m_lidarDevice) {
        NotifyLidarStatus(false);
        return -1;
    }

    m_lidarDevice->SetPointCloudCallback([this](const RsCloudData& cloud, const RsFrameInfo& info) {
        if (!m_trackingMode.load()) {
            const long long nowMs = std::chrono::duration_cast<std::chrono::milliseconds>(
                std::chrono::steady_clock::now().time_since_epoch()).count();
            const long long lastMs = m_lastProbeAcceptedMs.load();
            if (lastMs > 0 && nowMs - lastMs < kAirplaneProbeIntervalMs) {
                return;
            }
            m_lastProbeAcceptedMs.store(nowMs);
        }

        try {
            std::shared_ptr<OwnedCloudFrame> frame = AcquireCloudFrameBuffer();
            if (!frame) {
                return;
            }
            if (!CopyCloudFrame(cloud, info, *frame)) {
                if (!m_cloudCopyErrorReported.exchange(true)) {
                    NotifyStatus("雷达点云格式非 PointXYZI，已丢弃当前帧");
                }
                return;
            }

            m_cloudCopyErrorReported.store(false);
            {
                std::lock_guard<std::mutex> dataLock(m_dataMutex);
                m_latestCloudFrame = frame;
                ++m_cloudSequence;
            }
            m_detectionCondition.notify_one();
        } catch (const std::exception& e) {
            if (!m_cloudCopyErrorReported.exchange(true)) {
                NotifyStatus(std::string("复制雷达点云失败：") + e.what());
            }
        } catch (...) {
            if (!m_cloudCopyErrorReported.exchange(true)) {
                NotifyStatus("复制雷达点云发生未知异常");
            }
        }
    });

    m_lidarDevice->SetExceptionCallback([this](const RsExceptionInfo& info) {
        const QString message = info.message.empty()
            ? QStringLiteral("雷达异常")
            : QStringLiteral("雷达异常：%1").arg(QString::fromStdString(info.message));
        const bool fatal = info.code == 0x40 || info.code >= 0x80;
        if (fatal && m_detectionRunning.load()) {
            std::lock_guard<std::mutex> dataLock(m_dataMutex);
            m_lidarErrorPending = true;
            m_lidarErrorMessage = message;
        }
        if (fatal) {
            m_detectionCondition.notify_all();
        }
        NotifyStatus(message.toUtf8().toStdString());
        if (fatal) {
            NotifyLidarStatus(false);
        }
    });

    int ret = m_lidarDevice->InitDevice();
    if (ret != 0) {
        NotifyLidarStatus(false);
        return ret;
    }

    ret = m_lidarDevice->OpenDevice(config);
    if (ret != 0) {
        NotifyLidarStatus(false);
        return ret;
    }

    ret = m_lidarDevice->Start();
    NotifyLidarStatus(ret == 0);
    return ret;
}

int ParkingSpaceGuidePresenter::InitLedDisplay(const LedDisplayConfig& config)
{
    if (m_ledDisplay) {
        m_ledDisplay->Close();
        delete m_ledDisplay;
        m_ledDisplay = nullptr;
    }

    if (ILedDisplayDevice::CreateObject(&m_ledDisplay) != 0 || !m_ledDisplay) {
        NotifyLedStatus(false);
        return -1;
    }

    m_ledDisplay->SetStatusCallback([](ELedDisplayStatus status,
                                       const std::string& message,
                                       void* user) {
        auto* self = static_cast<ParkingSpaceGuidePresenter*>(user);
        if (!self) {
            return;
        }
        self->NotifyLedStatus(status == ELedDisplayStatus::Connected);
        if (!message.empty()) {
            self->NotifyStatus(std::string("显示屏：") + message);
        }
    }, this);

    const int ret = m_ledDisplay->Open(config);
    NotifyLedStatus(config.enabled && ret == 0 && m_ledDisplay->IsConnected());
    return ret;
}

int ParkingSpaceGuidePresenter::InitUdpBroadcast(const UdpBroadcastConfig& config)
{
    std::lock_guard<std::mutex> lock(m_udpMutex);

    if (m_udpClient) {
        m_udpClient->StopUDPClient();
        delete m_udpClient;
        m_udpClient = nullptr;
    }

    m_udpBroadcastConfig = config;
    if (!config.enabled) {
        NotifyStatus("组播未启用");
        return 0;
    }

    if (config.address.empty() || config.port <= 0 || config.port > 65535) {
        NotifyStatus("组播配置无效");
        return -1;
    }

    if (!IYUDPClient::CreateUDPClient(&m_udpClient) || !m_udpClient) {
        NotifyStatus("创建组播客户端失败");
        return -1;
    }

    const int ret = m_udpClient->Init(false);
    if (ret != 0) {
        NotifyStatus("初始化组播客户端失败：" + std::to_string(ret));
        m_udpClient->StopUDPClient();
        delete m_udpClient;
        m_udpClient = nullptr;
        return ret;
    }

    NotifyStatus("组播客户端已初始化");
    return 0;
}

int ParkingSpaceGuidePresenter::InitHttpServer(const HttpServerConfig& config)
{
    CloseHttpServer();

    m_httpServer = new ParkingStatusHttpServer();
    const int ret = m_httpServer->Start(
        config,
        [this]() {
            return CurrentStatusJson();
        });
    if (ret != 0) {
        const std::string error = m_httpServer->LastError();
        delete m_httpServer;
        m_httpServer = nullptr;
        NotifyStatus(error.empty() ? "HTTP状态服务启动失败" : "HTTP状态服务启动失败：" + error);
        return ret;
    }

    if (config.enabled) {
        NotifyStatus("HTTP状态服务已启动：" + config.address + ":" + std::to_string(config.port));
    } else {
        NotifyStatus("HTTP状态服务未启用");
    }
    return 0;
}

void ParkingSpaceGuidePresenter::CloseUdpBroadcast()
{
    std::lock_guard<std::mutex> lock(m_udpMutex);
    if (!m_udpClient) {
        return;
    }

    m_udpClient->StopUDPClient();
    delete m_udpClient;
    m_udpClient = nullptr;
}

void ParkingSpaceGuidePresenter::CloseHttpServer()
{
    if (!m_httpServer) {
        return;
    }

    m_httpServer->Stop();
    delete m_httpServer;
    m_httpServer = nullptr;
}

void ParkingSpaceGuidePresenter::CloseDevices()
{
    CloseHttpServer();
    CloseUdpBroadcast();

    if (m_mvsDevice) {
        m_mvsDevice->StopAcquisition();
        m_mvsDevice->UnregisterImageCallback();
        m_mvsDevice->CloseDevice();
        m_mvsDevice->UninitSDK();
        delete m_mvsDevice;
        m_mvsDevice = nullptr;
    }

    if (m_lidarDevice) {
        m_lidarDevice->Stop();
        m_lidarDevice->CloseDevice();
        delete m_lidarDevice;
        m_lidarDevice = nullptr;
    }

    if (m_ledDisplay) {
        m_ledDisplay->Close();
        delete m_ledDisplay;
        m_ledDisplay = nullptr;
    }
}

void ParkingSpaceGuidePresenter::EnrichDetectionResult(DetectionResult& result) const
{
    const UdpBroadcastConfig config = m_configManager
        ? m_configManager->GetConfigResult().udpBroadcastConfig
        : m_udpBroadcastConfig;

    for (ParkingSpaceGuideInfo& info : result.parkingSpaceInfoList) {
        if (info.targetId.trimmed().isEmpty()) {
            info.targetId = ConfigText(config.targetId, QStringLiteral("T001"));
        }
        if (info.parkId.trimmed().isEmpty()) {
            info.parkId = ConfigText(config.parkId, QStringLiteral("P01"));
        }
        if (info.modelType.trimmed().isEmpty()) {
            info.modelType = QStringLiteral("未知");
        }
    }
}

void ParkingSpaceGuidePresenter::UpdateCurrentStatus(const DetectionResult& result)
{
    const UdpBroadcastConfig config = m_configManager
        ? m_configManager->GetConfigResult().udpBroadcastConfig
        : m_udpBroadcastConfig;
    const QByteArray data = QJsonDocument(BuildDetectionResultPayload(result, config))
        .toJson(QJsonDocument::Compact);

    std::lock_guard<std::mutex> lock(m_statusMutex);
    m_currentStatusJson.assign(data.constData(), static_cast<size_t>(data.size()));
}

std::string ParkingSpaceGuidePresenter::CurrentStatusJson() const
{
    std::lock_guard<std::mutex> lock(m_statusMutex);
    if (!m_currentStatusJson.empty()) {
        return m_currentStatusJson;
    }
    return "{\"success\":false,\"hasResult\":false,\"message\":\"暂无检测结果\",\"errorCode\":-1}";
}

bool ParkingSpaceGuidePresenter::BroadcastDetectionResult(const DetectionResult& result)
{
    Q_UNUSED(result);

    std::lock_guard<std::mutex> lock(m_udpMutex);
    if (!m_udpClient || !m_udpBroadcastConfig.enabled) {
        return false;
    }

    const std::string currentStatus = CurrentStatusJson();
    const QByteArray data(currentStatus.data(), static_cast<int>(currentStatus.size()));
    const int ret = m_udpClient->SendData(m_udpBroadcastConfig.port,
                                          m_udpBroadcastConfig.address.c_str(),
                                          data.constData(),
                                          data.size());
    if (ret != 0) {
        NotifyStatus("组播发送失败：" + std::to_string(ret));
        return false;
    }

    return true;
}

void ParkingSpaceGuidePresenter::NotifyStatus(const std::string& message)
{
    LOG_INFO("%s\n", message.c_str());
    if (StatusCallback()) {
        StatusCallback()->OnStatusUpdate(message);
    }
}

void ParkingSpaceGuidePresenter::NotifyWorkStatus(WorkStatus status)
{
    if (StatusCallback()) {
        StatusCallback()->OnWorkStatusChanged(status);
    }
}

void ParkingSpaceGuidePresenter::NotifyCameraStatus(bool connected)
{
    if (StatusCallback()) {
        StatusCallback()->OnCamera1StatusChanged(connected);
    }
}

void ParkingSpaceGuidePresenter::NotifyLidarStatus(bool connected)
{
    if (StatusCallback()) {
        StatusCallback()->OnCamera2StatusChanged(connected);
    }
}

void ParkingSpaceGuidePresenter::NotifyLedStatus(bool connected)
{
    if (StatusCallback()) {
        StatusCallback()->OnSerialConnectionChanged(connected);
    }
}

LedDisplayResult ParkingSpaceGuidePresenter::ConvertLedResult(const DetectionResult& result) const
{
    LedDisplayResult output;
    if (result.errorCode != 0) {
        output.valid = true;
        output.guideCode = 2;
        return output;
    }

    output.valid = !result.parkingSpaceInfoList.empty();
    if (!output.valid) {
        return output;
    }

    const ParkingSpaceGuideInfo& info = result.parkingSpaceInfoList.front();
    output.guideCode = (info.hasException || IsExceptionGuideState(info.guideStateCode)) ? 2 : 1;
    output.distance = static_cast<float>(info.distance);
    output.lateralOffset = static_cast<float>(info.lateralOffset);
    output.angle = static_cast<float>(info.angle);
    return output;
}

bool ParkingSpaceGuidePresenter::CacheMvsFrame(const MvsImageData& image, QImage& frame)
{
    frame = QImage();
    if (!image.pData || image.width == 0 || image.height == 0 || image.dataSize == 0) {
        return false;
    }

    const int width = static_cast<int>(image.width);
    const int height = static_cast<int>(image.height);
    const size_t pixelCount = static_cast<size_t>(width) * static_cast<size_t>(height);
    if (pixelCount == 0) {
        return false;
    }

    QImage rgbImage;
    if (image.pixelFormat == kMvsPixelTypeRGB8 && image.dataSize >= pixelCount * 3) {
        QImage src(image.pData, width, height, width * 3, QImage::Format_RGB888);
        rgbImage = src.copy();
    } else if (image.pixelFormat == kMvsPixelTypeBGR8 && image.dataSize >= pixelCount * 3) {
        QImage src(image.pData, width, height, width * 3, QImage::Format_RGB888);
        rgbImage = src.rgbSwapped();
    } else if (image.pixelFormat == kMvsPixelTypeMono8 && image.dataSize >= pixelCount) {
        QImage src(image.pData, width, height, width, QImage::Format_Grayscale8);
        rgbImage = src.convertToFormat(QImage::Format_RGB888);
    } else {
        return false;
    }

    if (rgbImage.isNull()) {
        return false;
    }

    std::vector<unsigned char> compact(pixelCount * 3);
    for (int row = 0; row < height; ++row) {
        std::memcpy(compact.data() + static_cast<size_t>(row) * static_cast<size_t>(width) * 3,
                    rgbImage.constScanLine(row),
                    static_cast<size_t>(width) * 3);
    }

    CameraFrameInfo frameInfo;
    frameInfo.width = width;
    frameInfo.height = height;
    frameInfo.pixelFormat = image.pixelFormat;
    frameInfo.frameId = image.frameID;
    frameInfo.timestamp = image.timestamp;

    std::lock_guard<std::mutex> lock(m_dataMutex);
    m_latestFrame.swap(compact);
    m_latestFrameInfo = frameInfo;
    m_hasFrame = true;
    frame = rgbImage;
    return true;
}