#include "EnergyScaleForm.h"
#include "ui_EnergyScaleForm.h"
#include <QDir>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonValue>
#include <QwtPlotCanvas>
#include <QwtText>
#include <QwtPlotCurve>
#include "CustomQwtPlot.h"
#include "DataCalcProcess/GaussPolyCoe.h"
#include "DataCalcProcess/MathModelDefine.h"
#include "DataCalcProcess/NolinearLeastSquaresCurveFit.h"
#include <QDebug>
#include <QDialog>
#include <QMessageBox>
#include <QInputDialog>
#include <QFileDialog>


EnergyScaleForm::EnergyScaleForm(QWidget *parent)
    : MeasureAnalysisView(parent)
    , ui(new Ui::EnergyScaleForm)
    , _plot(nullptr)
    , _rawDataCurve(nullptr)
    , _fitCurve(nullptr)
    , _rawDataSymbol(nullptr)
    , m_isLoadingTable(false)
{
    ui->setupUi(this);
    this->_plot = new CustomQwtPlot(this);
    ui->layout_fittingCurve->addWidget(this->_plot);
    _rawDataCurve = new QwtPlotCurve("原始数据");
    _fitCurve = new QwtPlotCurve("拟合曲线");
    _rawDataSymbol = new QwtSymbol(QwtSymbol::Ellipse);
    _rawDataSymbol->setSize(8);
    _rawDataSymbol->setBrush(Qt::red);
    _rawDataSymbol->setPen(QPen(Qt::black, 1));
    setupPlot();
    initComboBoxUi();
    initScaleDataTable();
    loadAllFilesInTheFolder();
    connect(ui->comboBox_channel, &QComboBox::currentTextChanged, this, &EnergyScaleForm::on_comboBox_channel_currentTextChanged);
    connect(ui->comboBox_fit_type, &QComboBox::currentTextChanged,this, &EnergyScaleForm::on_comboBox_fit_type_currentTextChanged);
    connect(ui->tablew_scale_data, &QTableWidget::cellChanged,this, &EnergyScaleForm::on_tablew_scale_data_cellChanged);
}

EnergyScaleForm::~EnergyScaleForm()
{
    delete ui;
}

void EnergyScaleForm::InitViewWorkspace(const QString &project_name)
{

}

void EnergyScaleForm::SetAnalyzeDataFilename(const QMap<QString, QVariant> &data_files_set)
{
    if (!data_files_set.isEmpty()) {
        const QString& data_name = data_files_set.firstKey();
        const QString& data_filename = data_files_set.first().toString();
        QFileInfo info(data_filename);
        QDir dir = info.dir();
        if (QFileInfo(data_filename).exists()) {
            ui->groupBox_3->hide();
            QFileInfo fileInfo(data_filename);
            QString baseName =QString("[%1]%2").arg(dir.dirName()).arg(fileInfo.baseName());
            ui->lineEdit_name->setText(baseName);
            ui->lineEdit_name->setReadOnly(true);
            ui->groupBox_2->hide();
            ui->pBtn_SaveAs->setText(QStringLiteral(u"保存到系统"));
            m_currentFilePath = data_filename;
            QString errorMsg;
            m_channelList = parseJsonToChannels(data_filename, errorMsg);
            on_comboBox_channel_currentTextChanged(QStringLiteral(u"通道1"));
        }
    }
}

void EnergyScaleForm::setupPlot()
{
    _plot->setCanvasBackground(Qt::white);
    QwtPlotCanvas* canvas = qobject_cast<QwtPlotCanvas*>(_plot->canvas());
    canvas->setFrameStyle(QFrame::NoFrame);
    QFont font = this->font();
    font.setBold(false);
    QwtText energy_label = QStringLiteral(u"道址");
    energy_label.setFont(font);
    QwtText count_label = QStringLiteral(u"能量");
    count_label.setFont(font);
    _plot->setAxisTitle(QwtPlot::xBottom, energy_label);
    _plot->setAxisTitle(QwtPlot::yLeft, count_label);
    // 设置轴自动缩放
    _plot->setAxisAutoScale(QwtPlot::xBottom, true);
    _plot->setAxisAutoScale(QwtPlot::yLeft, true);
    _plot->enableAxis(QwtPlot::xBottom);
    _plot->enableAxis(QwtPlot::yLeft);
    _plot->SetAxisDragScale(QwtPlot::xBottom, true);
    // 启用鼠标追踪
    _plot->canvas()->setMouseTracking(true);
}

void EnergyScaleForm::loadAllFilesInTheFolder()
{
    const QString& energy_scale_dir_path = QDir(qApp->applicationDirPath()).filePath("configure/EnergyScale");
    QDir dir(energy_scale_dir_path);
    QFileInfoList infoList = dir.entryInfoList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot);
    ui->listWidget->clear();
    for (const QFileInfo &info : infoList) {
        QString displayName;
        if (info.isFile()) {
            displayName = info.baseName();
        } else {
            displayName = info.fileName();
        }

        QListWidgetItem *item = new QListWidgetItem(displayName);
        item->setData(Qt::UserRole, info.absoluteFilePath());
        ui->listWidget->addItem(item);
    }
    connect(ui->listWidget, &QListWidget::itemDoubleClicked, this, &EnergyScaleForm::onItemDoubleClicked);
}

QMap<QString, ChannelData> EnergyScaleForm::parseJsonToChannels(const QString &filePath, QString &errorMsg)
{
    QMap<QString, ChannelData> result;
    errorMsg.clear();

    QFile file(filePath);
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        errorMsg = QString("无法打开文件: %1").arg(file.errorString());
        return result;
    }

    QByteArray data = file.readAll();
    file.close();

    QJsonParseError parseError;
    QJsonDocument doc = QJsonDocument::fromJson(data, &parseError);
    if (parseError.error != QJsonParseError::NoError) {
        errorMsg = QString("JSON 解析错误: %1").arg(parseError.errorString());
        return result;
    }

    if (!doc.isObject()) {
        errorMsg = "JSON 根节点不是对象";
        return result;
    }

    QJsonObject rootObj = doc.object();
    if (rootObj.contains("Remark") && rootObj["Remark"].isString())
        ui->plainTextEdit_description->setPlainText(rootObj["Remark"].toString());
    for (auto it = rootObj.begin(); it != rootObj.end(); ++it) {
        QString channelName = it.key();
        QJsonValue channelVal = it.value();
        if (!channelVal.isObject()) {
            errorMsg += QString("通道 %1 的值不是对象，跳过\n").arg(channelName);
            continue;
        }
        QJsonObject channelObj = channelVal.toObject();

        ChannelData chData;

        if (channelObj.contains("EnergyFitDegree") && channelObj["EnergyFitDegree"].isDouble()) {
            chData.energyFitDegree = channelObj["EnergyFitDegree"].toInt();
        } else {
            errorMsg += QString("通道 %1 缺少 EnergyFitDegree 字段\n").arg(channelName);
            continue;
        }

        if (channelObj.contains("EnergyFitResultCoeffs") && channelObj["EnergyFitResultCoeffs"].isArray()) {
            QJsonArray coeffsArr = channelObj["EnergyFitResultCoeffs"].toArray();
            for (QJsonValue v : coeffsArr) {
                if (v.isDouble())
                    chData.energyFitResultCoeffs.append(v.toDouble());
                else
                    errorMsg += QString("通道 %1 的 EnergyFitResultCoeffs 包含非数字\n").arg(channelName);
            }
        } else {
            errorMsg += QString("通道 %1 缺少 EnergyFitResultCoeffs 字段\n").arg(channelName);
        }

        if (channelObj.contains("FitData") && channelObj["FitData"].isArray()) {
            QJsonArray fitDataArr = channelObj["FitData"].toArray();
            for (QJsonValue rowVal : fitDataArr) {
                if (!rowVal.isArray()) {
                    errorMsg += QString("通道 %1 的 FitData 行不是数组\n").arg(channelName);
                    continue;
                }
                QJsonArray rowArr = rowVal.toArray();
                if (rowArr.size() != 7) {
                    errorMsg += QString("通道 %1 的 FitData 行长度不为 7（实际 %2）\n")
                                    .arg(channelName).arg(rowArr.size());
                    continue;
                }
                FitDataRow row;
                row.daoSite                      = rowArr[0].toDouble();
                row.energy                       = rowArr[1].toDouble();
                row.fittingEnergy                = rowArr[2].toDouble();
                row.energyFittingDeviation       = rowArr[3].toDouble();
                row.resolution                   = rowArr[4].toDouble();
                row.fitResolution                = rowArr[5].toDouble();
                row.resolutionFittingDeviation   = rowArr[6].toDouble();
                chData.fitData.append(row);
            }
        } else {
            errorMsg += QString("通道 %1 缺少 FitData 字段\n").arg(channelName);
        }

        if (channelObj.contains("FwhmFitResultCoeffs") && channelObj["FwhmFitResultCoeffs"].isArray()) {
            QJsonArray fwhmArr = channelObj["FwhmFitResultCoeffs"].toArray();
            for (QJsonValue v : fwhmArr) {
                if (v.isDouble())
                    chData.fwhmFitResultCoeffs.append(v.toDouble());
                else
                    errorMsg += QString("通道 %1 的 FwhmFitResultCoeffs 包含非数字\n").arg(channelName);
            }
        } else {
            errorMsg += QString("通道 %1 缺少 FwhmFitResultCoeffs 字段\n").arg(channelName);
        }

        result.insert(channelName, chData);
    }

    if (result.isEmpty() && errorMsg.isEmpty())
        errorMsg = "未找到任何通道数据。";

    return result;
}

void EnergyScaleForm::initComboBoxUi()
{
    ui->comboBox_fit_type->addItem(QStringLiteral(u"一次拟合"));
    ui->comboBox_fit_type->addItem(QStringLiteral(u"二次拟合"));
    for(int i = 1;i <= 32; ++i)
    {
        QString channelName = QStringLiteral(u"通道%1").arg(i);
        ui->comboBox_channel->addItem(channelName);
        if (!m_channelList.contains(channelName)) {
            ChannelData emptyData;
            emptyData.energyFitDegree = 1;
            m_channelList.insert(channelName, emptyData);
        }
    }
}

void EnergyScaleForm::initScaleDataTable()
{
    QTableWidget* table = ui->tablew_scale_data;
    table->setColumnCount(7);
    // 设置表格列名
    QStringList headers = {
        "道址", "能量", "拟合能量", "能量拟合偏差",
        "分辨率", "拟合分辨率", "分辨率拟合偏差"
    };
    table->setHorizontalHeaderLabels(headers);
    table->setEditTriggers(QTableWidget::DoubleClicked | QTableWidget::EditKeyPressed);
    table->setSelectionBehavior(QTableWidget::SelectRows); // 整行选中
    table->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
}

void EnergyScaleForm::showChannelData(const QString channelName)
{
    if (!m_channelList.contains(channelName)) {
        return;
    }

    m_isLoadingTable = true; // 防止触发cellChanged
    ui->tablew_scale_data->setRowCount(0);

    const ChannelData& chData = m_channelList[channelName];

    switch (chData.energyFitDegree) {
    case 1:
    {
        ui->comboBox_fit_type->setCurrentIndex(0);
        ui->label_fit_type_text->setText(QStringLiteral(u"y = a + bx"));
        QString coefficient = QStringLiteral(u"a = %1 , b = %2").arg(chData.energyFitResultCoeffs.at(0)).arg(chData.energyFitResultCoeffs.at(1));
        ui->label_fit_result->setText(coefficient);
    } break;
    case 2:
        ui->comboBox_fit_type->setCurrentIndex(1);
        ui->label_fit_type_text->setText(QStringLiteral(u"y = a + bx + c*x^2"));
        QString coefficient = QStringLiteral(u"a = %1 , b = %2, c = %3").arg(chData.energyFitResultCoeffs.at(0)).arg(chData.energyFitResultCoeffs.at(1)).arg(chData.energyFitResultCoeffs.at(2));
        ui->label_fit_result->setText(coefficient);
        break;
    }
    QString energyCoeffsStr;
    for (int i = 0; i < chData.energyFitResultCoeffs.size(); ++i) {
        energyCoeffsStr += QString("系数%1: %2  ").arg(i+1).arg(chData.energyFitResultCoeffs[i], 0, 'f', 6);
    }
    QTableWidget* table = ui->tablew_scale_data;
    table->setRowCount(chData.fitData.size());
    for (int row = 0; row < chData.fitData.size(); ++row) {
        const FitDataRow& fitRow = chData.fitData[row];
        table->setItem(row, 0, new QTableWidgetItem(QString::number(fitRow.daoSite, 'f', 3)));
        table->setItem(row, 1, new QTableWidgetItem(QString::number(fitRow.energy, 'f', 3)));
        table->setItem(row, 2, new QTableWidgetItem(QString::number(fitRow.fittingEnergy, 'f', 3)));
        table->setItem(row, 3, new QTableWidgetItem(QString::number(fitRow.energyFittingDeviation, 'f', 3)));
        table->setItem(row, 4, new QTableWidgetItem(QString::number(fitRow.resolution, 'f', 3)));
        table->setItem(row, 5, new QTableWidgetItem(QString::number(fitRow.fitResolution, 'f', 3)));
        table->setItem(row, 6, new QTableWidgetItem(QString::number(fitRow.resolutionFittingDeviation, 'f', 3)));

        for (int col = 0; col < 7; ++col) {
            Qt::ItemFlags flags = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
            if (col == 0 || col == 1 || col == 4) {
                flags |= Qt::ItemIsEditable;
            }
            table->item(row, col)->setFlags(flags);
        }
    }
    m_isLoadingTable = false;
}

void EnergyScaleForm::showCurve()
{
    clearPlot();

    QString channelName = ui->comboBox_channel->currentText();
    if (!m_channelList.contains(channelName))
    {
        _plot->replot();
        return;
    }
    const ChannelData &chData = m_channelList[channelName];
    if (chData.fitData.isEmpty()) return;

    QVector<double> xRaw, yRaw;
    double xMin = 0;
    double xMax = 4096;

    for (const FitDataRow &row : chData.fitData) {
        xRaw.append(row.daoSite);
        yRaw.append(row.energy);
    }
    _rawDataCurve->setSamples(xRaw, yRaw);
    _rawDataCurve->setSymbol(_rawDataSymbol);
    _rawDataCurve->setStyle(QwtPlotCurve::NoCurve);
    _rawDataCurve->attach(_plot);

    if (!chData.energyFitResultCoeffs.isEmpty()) {
        QVector<QPointF> fitPoints = generateFitCurvePoints(chData);
        _fitCurve->setSamples(fitPoints);
        _fitCurve->setPen(QPen(Qt::blue, 2)); // 拟合曲线用蓝色粗线
        _fitCurve->setStyle(QwtPlotCurve::Lines);
        _fitCurve->attach(_plot);
    }

    _plot->replot();
}

void EnergyScaleForm::clearPlot()
{
    _rawDataCurve->detach();
    _fitCurve->detach();
    _plot->detachItems(QwtPlotItem::Rtti_PlotCurve, false);
    _plot->replot();

}

QVector<QPointF> EnergyScaleForm::generateFitCurvePoints(const ChannelData &chData)
{
    int pointCount = 4096;
    QVector<QPointF> points;
    if (chData.energyFitResultCoeffs.isEmpty()) return points;

    for (int i = 0; i < pointCount; ++i) {
        double y = 0.0;
        switch (chData.energyFitDegree) {
        case 1: // 一次拟合：y = a + b*x
            y = LinearFunction(i,chData.energyFitResultCoeffs[0],chData.energyFitResultCoeffs[1]);
            break;
        case 2: // 二次拟合：y = a + b*x + c*x²
            if (chData.energyFitResultCoeffs.size() >= 3) {
                y = QuadraticPolynomial(i,chData.energyFitResultCoeffs[0],chData.energyFitResultCoeffs[1],chData.energyFitResultCoeffs[2]);
            }
            break;
        default:
            break;
        }
        points.append(QPointF(i, y));
    }
    return points;
}

QVector<QPointF> EnergyScaleForm::generateFitCurvePoints(const double a, const double b, const double c)
{
    int pointCount = 4096;
    QVector<QPointF> points;
    // if (chData.energyFitResultCoeffs.isEmpty()) return points;

    for (int i = 0; i < pointCount; ++i) {
        double y = 0.0;
        switch (ui->comboBox_fit_type->currentIndex() + 1) {
        case 1: y = LinearFunction(i,a,b); ;break;
        case 2: y = QuadraticPolynomial(i,a,b,c);break;
        }
        points.append(QPointF(i, y));
    }
    return points;
}

void EnergyScaleForm::calculateFitValues(ChannelData &chData)
{
    if (chData.fitData.isEmpty())
        return;

    if (!chData.energyFitResultCoeffs.isEmpty()) {
        for (auto &row : chData.fitData) {
            double x = row.daoSite;
            double fitE = 0.0;

            if (chData.energyFitDegree == 1 && chData.energyFitResultCoeffs.size() >= 2) {
                fitE = LinearFunction(x,chData.energyFitResultCoeffs[0],chData.energyFitResultCoeffs[1]);
            }
            else if (chData.energyFitDegree == 2 && chData.energyFitResultCoeffs.size() >= 3) {
                fitE = QuadraticPolynomial(x,chData.energyFitResultCoeffs[0],chData.energyFitResultCoeffs[1],chData.energyFitResultCoeffs[2]);
            }

            row.fittingEnergy = fitE;
            row.energyFittingDeviation = row.energy - fitE;
        }
    }

    if (chData.fwhmFitResultCoeffs.size() >= 2)
    {
        arma::vec p(2);
        p(0) = chData.fwhmFitResultCoeffs[0];   // k
        p(1) = chData.fwhmFitResultCoeffs[1];   // c

        for (auto &row : chData.fitData) {
            double E = row.fittingEnergy;
            if (E <= 0) {
                row.fitResolution = 0.0;
                row.resolutionFittingDeviation = 0.0;
                continue;
            }
            double fitFwhm = FwhmModel(E, p);

            row.fitResolution = fitFwhm;
            row.resolutionFittingDeviation = row.resolution - fitFwhm;
        }
    }
    else {
        // 没有分辨率参数就清空
        for (auto &row : chData.fitData) {
            row.fitResolution = 0.0;
            row.resolutionFittingDeviation = 0.0;
        }
    }
}

bool EnergyScaleForm::fitFwhmModel(ChannelData &chData)
{
    std::vector<double> E_list, fwhm_list;
    for (const auto& row : chData.fitData) {
        if (row.fittingEnergy > 0 && row.resolution > 0) {
            E_list.push_back(row.fittingEnergy);
            fwhm_list.push_back(row.resolution);
        }
    }
    if (E_list.size() < 2) {
        return false;
    }
    arma::vec E(E_list.data(), E_list.size());
    arma::vec FWHM(fwhm_list.data(), fwhm_list.size());

    arma::vec params = NolinearLeastSquaresCurveFit::Lsqcurvefit(FwhmModel,E,FWHM, { 1.0, 1.0 });
    chData.fwhmFitResultCoeffs.clear();
    chData.fwhmFitResultCoeffs.append(params(0)); // k
    chData.fwhmFitResultCoeffs.append(params(1)); // c
    return true;
}


bool EnergyScaleForm::saveChannelDataToJson(const QString &filePath)
{
    if (filePath.isEmpty()) return false;

    QJsonObject rootObj;
    QString remark;
    if(systemEnble)
        remark = ui->plainTextEdit_description->property("systemData").toString();
    else
        remark = ui->plainTextEdit_description->toPlainText().trimmed();
    rootObj["Remark"] = remark;

    for (auto it = m_channelList.begin(); it != m_channelList.end(); ++it) {
        QString channelName = it.key();
        const ChannelData& chData = it.value();

        QJsonObject channelObj;
        channelObj["EnergyFitDegree"] = chData.energyFitDegree;

        // 能量拟合系数
        QJsonArray energyCoeffsArr;
        for (double coeff : chData.energyFitResultCoeffs) {
            energyCoeffsArr.append(coeff);
        }
        channelObj["EnergyFitResultCoeffs"] = energyCoeffsArr;

        // 拟合数据
        QJsonArray fitDataArr;
        for (const FitDataRow& row : chData.fitData) {
            QJsonArray rowArr;
            rowArr.append(row.daoSite);
            rowArr.append(row.energy);
            rowArr.append(row.fittingEnergy);
            rowArr.append(row.energyFittingDeviation);
            rowArr.append(row.resolution);
            rowArr.append(row.fitResolution);
            rowArr.append(row.resolutionFittingDeviation);
            fitDataArr.append(rowArr);
        }
        channelObj["FitData"] = fitDataArr;

        QJsonArray fwhmCoeffsArr;
        for (double coeff : chData.fwhmFitResultCoeffs) {
            fwhmCoeffsArr.append(coeff);
        }
        channelObj["FwhmFitResultCoeffs"] = fwhmCoeffsArr;

        rootObj[channelName] = channelObj;
    }

    QJsonDocument doc(rootObj);
    QFile file(filePath);
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        QMessageBox::critical(this, "错误", QString("保存文件失败：%1").arg(file.errorString()));
        return false;
    }

    file.write(doc.toJson(QJsonDocument::Indented));
    file.close();
    return true;
}

bool EnergyScaleForm::isDaoSiteDuplicated(const QString &channelName, double daoSite)
{
    if (!m_channelList.contains(channelName)) return false;
    const auto& fitData = m_channelList[channelName].fitData;
    for (const auto& row : fitData) {
        if (qAbs(row.daoSite - daoSite) < 1e-3) {
            return true;
        }
    }
    return false;
}


void EnergyScaleForm::onItemDoubleClicked(QListWidgetItem *item)
{
     if (!item) return;
     ui->plainTextEdit_description->clear();
     QString filePath = item->data(Qt::UserRole).toString();
     if (filePath.isEmpty()) return;
     ui->lineEdit_name->setText(item->text());
    m_currentFilePath = filePath;
     QString errorMsg;
     m_channelList = parseJsonToChannels(filePath, errorMsg);
     on_comboBox_channel_currentTextChanged(QStringLiteral(u"通道1"));
}

void EnergyScaleForm::on_comboBox_channel_currentTextChanged(const QString &text)
{
    if (text.isEmpty()) {
        return;
    }
    if (!m_channelList.contains(text)) {
        ChannelData emptyData;
        emptyData.energyFitDegree = 1;
        m_channelList.insert(text, emptyData);
    }
    showChannelData(text);
    showCurve();
}

void EnergyScaleForm::on_comboBox_fit_type_currentTextChanged(const QString &text)
{
    if(text == QStringLiteral(u"一次拟合")) {
        ui->label_fit_type_text->setText(QStringLiteral(u"y = a + bx"));
    } else if(text == QStringLiteral(u"二次拟合")) {
        ui->label_fit_type_text->setText(QStringLiteral(u"y = a + bx + c*x^2"));
    }
    showCurve();
}

void EnergyScaleForm::on_pBtn_Add_clicked()
{
    QString channelName = ui->comboBox_channel->currentText();
    QDialog dialog(this);
    dialog.setWindowTitle("添加能量刻度点");
    dialog.setFixedSize(300, 180); // 调整高度，预留分辨率输入
    dialog.setModal(true);
    QVBoxLayout* mainLayout = new QVBoxLayout(&dialog);
    mainLayout->setSpacing(15);
    mainLayout->setContentsMargins(20, 20, 20, 20);

    // 道址输入
    QHBoxLayout* daoLayout = new QHBoxLayout();
    QLabel* daoLabel = new QLabel("道址：");
    QLineEdit* daoEdit = new QLineEdit();
    daoEdit->setPlaceholderText("请输入道址值（数字）");
    QDoubleValidator* daoValidator = new QDoubleValidator(0, 100000, 3, daoEdit);
    daoValidator->setNotation(QDoubleValidator::StandardNotation);
    daoEdit->setValidator(daoValidator);
    daoLayout->addWidget(daoLabel);
    daoLayout->addWidget(daoEdit);

    // 能量输入
    QHBoxLayout* energyLayout = new QHBoxLayout();
    QLabel* energyLabel = new QLabel("能量：");
    QLineEdit* energyEdit = new QLineEdit();
    energyEdit->setPlaceholderText("请输入能量值（数字）");
    QDoubleValidator* energyValidator = new QDoubleValidator(0, 10000, 3, energyEdit);
    energyValidator->setNotation(QDoubleValidator::StandardNotation);
    energyEdit->setValidator(energyValidator);
    energyLayout->addWidget(energyLabel);
    energyLayout->addWidget(energyEdit);

    //分辨率输入
    QHBoxLayout* resolutionLayout = new QHBoxLayout();
    QLabel* resolutionLabel = new QLabel("分辨率：");
    QLineEdit* resolutionEdit = new QLineEdit();
    resolutionEdit->setPlaceholderText("请输入分辨率（数字）");
    QDoubleValidator* resolutionValidator = new QDoubleValidator(0, 1000, 3, resolutionEdit);
    resolutionValidator->setNotation(QDoubleValidator::StandardNotation);
    resolutionEdit->setValidator(resolutionValidator);
    resolutionLayout->addWidget(resolutionLabel);
    resolutionLayout->addWidget(resolutionEdit);

    // 按钮行
    QHBoxLayout* btnLayout = new QHBoxLayout();
    QPushButton* okBtn = new QPushButton("确定");
    QPushButton* cancelBtn = new QPushButton("取消");
    okBtn->setDefault(true);
    btnLayout->addStretch();
    btnLayout->addWidget(okBtn);
    btnLayout->addWidget(cancelBtn);

    mainLayout->addLayout(daoLayout);
    mainLayout->addLayout(energyLayout);
    mainLayout->addLayout(resolutionLayout);
    mainLayout->addLayout(btnLayout);

    connect(okBtn, &QPushButton::clicked, &dialog, &QDialog::accept);
    connect(cancelBtn, &QPushButton::clicked, &dialog, &QDialog::reject);
    daoEdit->setFocus();

    if (dialog.exec() != QDialog::Accepted) {
        return;
    }

    QString daoStr = daoEdit->text().trimmed();
    QString energyStr = energyEdit->text().trimmed();
    QString resolutionStr = resolutionEdit->text().trimmed();
    if (daoStr.isEmpty() || energyStr.isEmpty()) {
        QMessageBox::warning(this, "输入错误", "道址和能量不能为空");
        return;
    }

    bool daoOk = false, energyOk = false, resolutionOk = false;
    double daoSite = daoStr.toDouble(&daoOk);
    double energy = energyStr.toDouble(&energyOk);
    double resolution = resolutionStr.isEmpty() ? 0.0 : resolutionStr.toDouble(&resolutionOk);
    if (!daoOk || !energyOk || (!resolutionStr.isEmpty() && !resolutionOk)) {
        QMessageBox::warning(this, "输入错误", "请输入有效的数字");
        return;
    }

    if (isDaoSiteDuplicated(channelName, daoSite)) {
        QMessageBox::warning(this, "输入错误", "该道址已存在，无法重复添加");
        return;
    }

    ChannelData& chData = m_channelList[channelName];
    QTableWidget* table = ui->tablew_scale_data;
    FitDataRow newRow;
    newRow.daoSite = daoSite;
    newRow.energy = energy;
    newRow.resolution = resolution;
    newRow.fittingEnergy = 0.0;
    newRow.energyFittingDeviation = 0.0;
    newRow.fitResolution = 0.0;
    newRow.resolutionFittingDeviation = 0.0;
    chData.fitData.append(newRow);

    m_isLoadingTable = true;
    int newRowIndex = table->rowCount();
    table->insertRow(newRowIndex);
    table->setItem(newRowIndex, 0, new QTableWidgetItem(QString::number(daoSite, 'f', 3)));
    table->setItem(newRowIndex, 1, new QTableWidgetItem(QString::number(energy, 'f', 3)));
    table->setItem(newRowIndex, 4, new QTableWidgetItem(QString::number(resolution, 'f', 3)));
    for (int col = 2; col < 7; ++col) {
        if (col != 4) {
            table->setItem(newRowIndex, col, new QTableWidgetItem("0.000"));
        }
    }
    for (int col = 0; col < 7; ++col) {
        Qt::ItemFlags flags = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
        if (col == 0 || col == 1 || col == 4) {
            flags |= Qt::ItemIsEditable;
        }
        table->item(newRowIndex, col)->setFlags(flags);
    }
    m_isLoadingTable = false;

    table->scrollToBottom();
    table->selectRow(newRowIndex);
    showCurve();
    QMessageBox::information(this, "成功", "数据点添加成功");
}


void EnergyScaleForm::on_pBtn_Delete_clicked()
{

    QTableWidget* table = ui->tablew_scale_data;
    int currentRow = table->currentRow();
    if (currentRow < 0 || currentRow >= table->rowCount()) {
        QMessageBox::warning(this, "提示", "请选中要删除的行");
        return;
    }

    if (QMessageBox::question(this, "确认", "是否删除选中的行？", QMessageBox::Yes | QMessageBox::No) != QMessageBox::Yes) {
        return;
    }

    table->removeRow(currentRow);

    QString channelName = ui->comboBox_channel->currentText();
    if (m_channelList.contains(channelName)) {
        ChannelData& chData = m_channelList[channelName];
        if (currentRow < chData.fitData.size()) {
            chData.fitData.remove(currentRow);
        }
        // 删除后重新计算拟合值（如果有拟合系数）
        calculateFitValues(chData);
        // 刷新表格显示
        showChannelData(channelName);
    }

    showCurve();
}


void EnergyScaleForm::on_pBtn_fitting_clicked()
{
    QString channelName = ui->comboBox_channel->currentText();
    if (!m_channelList.contains(channelName)) {
        QMessageBox::warning(this, "拟合失败", "当前通道无数据");
        return;
    }

    ChannelData& chData = m_channelList[channelName];
    int rowCount = ui->tablew_scale_data->rowCount();
    int fitDegree = ui->comboBox_fit_type->currentIndex() + 1;
    int minEnergyPoints = (fitDegree == 1) ? 2 : 3;

    if (rowCount < minEnergyPoints) {
        QMessageBox::warning(this, "拟合失败",
            QString("至少需要%1个数据点才能进行%2").arg(minEnergyPoints).arg(fitDegree == 1 ? "一次拟合" : "二次拟合"));
        return;
    }

    std::vector<double> xRow,yRow;
    for(int i = 0; i < rowCount;++i) {
        QTableWidgetItem* daoItem = ui->tablew_scale_data->item(i,0);
        QTableWidgetItem* energyItem = ui->tablew_scale_data->item(i,1);
        if (!daoItem || !energyItem) continue;
        bool daoOk = false, energyOk = false;
        double dao = daoItem->text().toDouble(&daoOk);
        double energy = energyItem->text().toDouble(&energyOk);
        if (daoOk && energyOk) {
            xRow.push_back(dao);
            yRow.push_back(energy);
        }
    }
    if (xRow.size() < minEnergyPoints || yRow.size() < minEnergyPoints) {
        QMessageBox::warning(this, "拟合失败", "有效能量数据点不足");
        return;
    }

    std::vector<double> energyCoeff = GaussPolyCoe::PolynomialFit(xRow, yRow, fitDegree);
    if (energyCoeff.size() < fitDegree + 1) {
        QMessageBox::warning(this, "拟合失败", "能量拟合计算出错");
        return;
    }
    chData.energyFitDegree = fitDegree;
    chData.energyFitResultCoeffs.clear();
    for (double coeff : energyCoeff) {
        chData.energyFitResultCoeffs.append(coeff);
    }

   fitFwhmModel(chData);


    calculateFitValues(chData);

    m_isLoadingTable = true;
    showChannelData(channelName);
    m_isLoadingTable = false;
    showCurve();

    QString energyMsg;
    if (fitDegree == 1) {
        energyMsg = QString("能量拟合成功：a = %1 , b = %2")
                        .arg(energyCoeff[0], 0, 'f', 6)
                        .arg(energyCoeff[1], 0, 'f', 6);
    } else {
        energyMsg = QString("能量拟合成功：a = %1 , b = %2 , c = %3")
                        .arg(energyCoeff[0], 0, 'f', 6)
                        .arg(energyCoeff[1], 0, 'f', 6)
                        .arg(energyCoeff[2], 0, 'f', 6);
    }
}

void EnergyScaleForm::on_tablew_scale_data_cellChanged(int row, int column)
{
    if (m_isLoadingTable) return;

    QString channelName = ui->comboBox_channel->currentText();
    if (!m_channelList.contains(channelName)) return;
    if (row < 0 || row >= m_channelList[channelName].fitData.size()) return;

    ChannelData& chData = m_channelList[channelName];
    FitDataRow& currentRow = chData.fitData[row];
    QTableWidgetItem* item = ui->tablew_scale_data->item(row, column);
    if (!item) return;

    bool ok = false;
    double value = item->text().toDouble(&ok);
    if (!ok) {
        // 输入非数字时恢复原值
        m_isLoadingTable = true;
        if (column == 0) {
            item->setText(QString::number(currentRow.daoSite, 'f', 3));
        } else if (column == 1) {
            item->setText(QString::number(currentRow.energy, 'f', 3));
        } else if (column == 4) {
            item->setText(QString::number(currentRow.resolution, 'f', 3));
        }
        m_isLoadingTable = false;
        QMessageBox::warning(this, "输入错误", "请输入有效的数字");
        return;
    }

    bool needRecalc = false;
    if (column == 0) {
        // 检查道址重复
        if (isDaoSiteDuplicated(channelName, value) && qAbs(currentRow.daoSite - value) > 1e-3) {
            m_isLoadingTable = true;
            item->setText(QString::number(currentRow.daoSite, 'f', 3));
            m_isLoadingTable = false;
            QMessageBox::warning(this, "提示", "道址重复，修改失败");
            return;
        }
        currentRow.daoSite = value;
        needRecalc = true;
    } else if (column == 1) {
        currentRow.energy = value;
        needRecalc = true;
    } else if (column == 4) {
        currentRow.resolution = value;
        needRecalc = true;
    }

    if (needRecalc) {
        // calculateFitValues(chData);
        // m_isLoadingTable = true;
        // showChannelData(channelName);
        // m_isLoadingTable = false;
        // showCurve();
        on_pBtn_fitting_clicked();
    }

}

void EnergyScaleForm::on_pBtn_SaveAs_clicked()
{
    QString SaveAsName = ui->pBtn_SaveAs->text();
    QString targetFilePath;
    QString fileName;
    QString remark;
    if(SaveAsName.contains("保存到系统"))
    {
        systemEnble = true;
        QDialog dialog(this);
        dialog.setWindowTitle(QStringLiteral(u"保存到系统 - 能量刻度配置"));
        dialog.setFixedSize(400, 250);
        dialog.setModal(true);

        QVBoxLayout* mainLayout = new QVBoxLayout(&dialog);
        mainLayout->setSpacing(15);
        mainLayout->setContentsMargins(20, 20, 20, 20);

        QHBoxLayout* nameLayout = new QHBoxLayout();
        QLabel* nameLabel = new QLabel(QStringLiteral(u"能量刻度名称："));
        QLineEdit* nameEdit = new QLineEdit();
        nameEdit->setPlaceholderText(QStringLiteral(u"请输入刻度名称："));

        if (!ui->lineEdit_name->text().isEmpty()) {
            QString baseName = ui->lineEdit_name->text();
            baseName = baseName.contains("[") ? baseName.split("]").last().trimmed() : baseName;
            nameEdit->setText(baseName);
        }
        nameLayout->addWidget(nameLabel);
        nameLayout->addWidget(nameEdit);

        // 备注输入框
        QVBoxLayout* remarkLayout = new QVBoxLayout();
        QLabel* remarkLabel = new QLabel(QStringLiteral(u"备注："));
        QTextEdit* remarkEdit = new QTextEdit();
        remarkEdit->setPlaceholderText(QStringLiteral(u"请输入备注信息（可选）"));
        remarkEdit->setPlainText(ui->plainTextEdit_description->toPlainText()); // 填充现有备注
        remarkLayout->addWidget(remarkLabel);
        remarkLayout->addWidget(remarkEdit);

        // 按钮组
        QHBoxLayout* btnLayout = new QHBoxLayout();
        QPushButton* okBtn = new QPushButton(QStringLiteral(u"保存"));
        QPushButton* cancelBtn = new QPushButton(QStringLiteral(u"取消"));
        okBtn->setDefault(true);
        btnLayout->addStretch();
        btnLayout->addWidget(okBtn);
        btnLayout->addWidget(cancelBtn);

        // 组装布局
        mainLayout->addLayout(nameLayout);
        mainLayout->addLayout(remarkLayout);
        mainLayout->addLayout(btnLayout);

        connect(okBtn, &QPushButton::clicked, &dialog, &QDialog::accept);
        connect(cancelBtn, &QPushButton::clicked, &dialog, &QDialog::reject);

        if (dialog.exec() != QDialog::Accepted) {
            return;
        }

        fileName = nameEdit->text().trimmed();
        remark = remarkEdit->toPlainText().trimmed();
        if (fileName.isEmpty()) {
            QMessageBox::warning(this, QStringLiteral(u"输入错误"), QStringLiteral(u"能量刻度名称不能为空！"));
            return;
        }
        QString defaultDir = QDir(qApp->applicationDirPath()).filePath("configure/EnergyScale");

        QDir dir(defaultDir);
        if (!dir.exists() && !dir.mkpath(".")) {
            QMessageBox::critical(this, QStringLiteral(u"错误"), QStringLiteral(u"无法创建目录：%1").arg(defaultDir));
            return;
        }
        targetFilePath = dir.filePath(fileName + ".json"); // 强制.json后缀

        if (QFile::exists(targetFilePath)) {
            QMessageBox::StandardButton ret = QMessageBox::question(
                this,
                QStringLiteral(u"文件已存在"),
                QStringLiteral(u"名称为“%1”的能量刻度文件已存在，是否覆盖？").arg(fileName),
                QMessageBox::Yes | QMessageBox::No,
                QMessageBox::No
                );
            if (ret != QMessageBox::Yes) {
                return;
            }
        }
        ui->plainTextEdit_description->setProperty("systemData",remark);
    }else{
        systemEnble = false;
        // 选择保存路径
        QString defaultDir = QDir(qApp->applicationDirPath()).filePath("configure/EnergyScale");
        targetFilePath = QFileDialog::getSaveFileName(this,
                                                        "另存为能量刻度文件",
                                                        defaultDir,
                                                        "JSON文件 (*.json);;所有文件 (*.*)");

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

        // 确保后缀是.json
        if (!targetFilePath.endsWith(".json", Qt::CaseInsensitive)) {
            targetFilePath += ".json";
        }
    }
    // 保存文件
    if (saveChannelDataToJson(targetFilePath)) {
        // m_currentFilePath = targetFilePath; // 更新当前文件路径
        // ui->lineEdit_name->setText(QFileInfo(targetFilePath).baseName());
        loadAllFilesInTheFolder();
    }
}

void EnergyScaleForm::on_pBtn_Save_clicked()
{
    systemEnble = false;
    if (saveChannelDataToJson(m_currentFilePath)) {
        QMessageBox::information(this, "成功", "数据保存成功");
    } else {
        QMessageBox::critical(this, "失败", "数据保存失败");
    }
}


void EnergyScaleForm::on_pBtn_Add_File_clicked()
{
    bool isOk = false;
    QString fileName = QInputDialog::getText(this,
                                             QStringLiteral(u"新建能量刻度文件"),
                                             QStringLiteral(u"请输入文件名（无需后缀）："),
                                             QLineEdit::Normal,
                                             QStringLiteral(u"新刻度文件"),
                                             &isOk);
    if (!isOk || fileName.trimmed().isEmpty()) {
        return; // 用户取消或输入为空
    }
    fileName = fileName.trimmed();
    const QString energyScaleDir = QDir(qApp->applicationDirPath()).filePath("configure/EnergyScale");
    QDir dir(energyScaleDir);
    if (!dir.exists() && !dir.mkpath(".")) {
        QMessageBox::critical(this, QStringLiteral(u"错误"),
                              QStringLiteral(u"无法创建目录：%1").arg(energyScaleDir));
        return;
    }

    QString filePath = dir.filePath(fileName + ".json");
    if (QFile::exists(filePath)) {
        QMessageBox::warning(this, QStringLiteral(u"提示"),
                             QStringLiteral(u"文件%1已存在，请更换文件名").arg(fileName));
        return;
    }

    QJsonObject rootObj;
    for (int i = 1; i <= 32; ++i) {
        QString channelName = QStringLiteral(u"通道%1").arg(i);
        QJsonObject channelObj;
        channelObj["EnergyFitDegree"] = 1; // 默认一次拟合
        channelObj["EnergyFitResultCoeffs"] = QJsonArray(); // 空系数
        channelObj["FitData"] = QJsonArray(); // 空拟合数据
        channelObj["FwhmFitResultCoeffs"] = QJsonArray(); // 空分辨率系数
        rootObj[channelName] = channelObj;
    }

    QJsonDocument doc(rootObj);
    QFile file(filePath);
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        QMessageBox::critical(this, QStringLiteral(u"错误"),
                              QStringLiteral(u"无法创建文件：%1\n%2").arg(filePath).arg(file.errorString()));
        return;
    }
    file.write(doc.toJson(QJsonDocument::Indented));
    file.close();

    loadAllFilesInTheFolder();
    for (int i = 0; i < ui->listWidget->count(); ++i) {
        QListWidgetItem* item = ui->listWidget->item(i);
        if (item->text() == fileName) {
            ui->listWidget->setCurrentItem(item);
            break;
        }
    }

    QMessageBox::information(this, QStringLiteral(u"成功"),
                             QStringLiteral(u"文件%1创建成功").arg(fileName + ".json"));
}


void EnergyScaleForm::on_pBtn_Delete_File_clicked()
{
    QListWidgetItem* selectedItem = ui->listWidget->currentItem();
    if (!selectedItem) {
        QMessageBox::warning(this, QStringLiteral(u"提示"),
                             QStringLiteral(u"请先选中要删除的文件/文件夹"));
        return;
    }

    QString filePath = selectedItem->data(Qt::UserRole).toString();
    if (filePath.isEmpty()) {
        QMessageBox::warning(this, QStringLiteral(u"错误"),
                             QStringLiteral(u"无法获取文件路径"));
        return;
    }

    QMessageBox::StandardButton ret = QMessageBox::question(this,
                                                            QStringLiteral(u"确认删除"),
                                                            QStringLiteral(u"是否确定删除%1？\n删除后无法恢复！").arg(selectedItem->text()),
                                                            QMessageBox::Yes | QMessageBox::No,
                                                            QMessageBox::No);
    if (ret != QMessageBox::Yes) {
        return;
    }

    bool isDeleted = false;
    QFileInfo fileInfo(filePath);
    if (fileInfo.isFile()) {
        QFile file(filePath);
        isDeleted = file.remove();
    }

    if (isDeleted) {
        loadAllFilesInTheFolder();
        if (m_currentFilePath == filePath) {
            m_currentFilePath.clear();
            ui->lineEdit_name->clear();
            ui->tablew_scale_data->setRowCount(0);
            clearPlot();
            _plot->replot();
            ui->label_fit_result->clear();
            ui->label_fit_type_text->clear();
        }
        QMessageBox::information(this, QStringLiteral(u"成功"),
                                 QStringLiteral(u"删除成功"));
    } else {
        QMessageBox::critical(this, QStringLiteral(u"错误"),
                              QStringLiteral(u"删除失败：%1").arg(filePath));
    }
}