#include "CountRateAnalysisView.h"
#include "ui_CountRateAnalysisView.h"
#include <QVBoxLayout>
#include <QPushButton>
#include <QMessageBox>
#include <QwtPlotCurve>
#include <QwtPlotMarker>
#include <QwtPlotZoneItem>
#include <QwtPlotCanvas>
#include <QwtLegend>
#include <QwtText>
#include <cmath>
#include <QtMath>
#include "CustomQwtPlot.h"
#include <QDebug>
#include <GlobalDefine.h>
#include "csv.h"
#include <QThread>
#include "BusyIndicator.h"
#include <QMenu>

CountRateAnalysisView::CountRateAnalysisView(QWidget *parent) :
    MeasureAnalysisView(parent),
    ui(new Ui::CountRateAnalysisView)
{
    ui->setupUi(this);
    this->setViewType(PlotFrame);

    this->_menu = new QMenu(this);
    _busy_indicator = new BusyIndicatorWidget(this);

    InitUi();
    setupMenu();
}

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

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

}
void CountRateAnalysisView::SetAnalyzeDataFilename(const QMap<QString, QVariant> &data_files_set)
{
    if(!data_files_set.isEmpty()) {
        _busy_indicator->Start();
        auto functionToRun = [this,data_files_set] {
            QVector<ParticleInjectTime> data = getParticleInjectTimeData(data_files_set.first().toString());
            QMetaObject::invokeMethod(this, [this, data]() {
                setData(data);
                _busy_indicator->Stop();
            }, Qt::QueuedConnection);
        };
        QThread* load_data_thread = QThread::create(functionToRun);
        load_data_thread->start();
    }
}

void CountRateAnalysisView::showEvent(QShowEvent *e)
{
    Q_UNUSED(e);
    if (_busy_indicator) {
        _busy_indicator->setGeometry(this->rect());
        this->update();
    }
}

void CountRateAnalysisView::setData(QVector<ParticleInjectTime> data)
{
    int energyStart = ui->label_energyStart->text().toInt();
    int energyEnd = ui->label_energyEnd->text().toInt();
    int nInv = 1;
    constexpr qint64 NS_PER_SECOND = 1000000000; // 纳秒转秒的基数

    if (data.isEmpty()) return; // 添加空列表保护
    QVector<double> x;
    QVector<double> y;

    const ParticleInjectTime& lostdt = data.last();
    const qint64 totalNanoseconds = lostdt.dTime * 5;
    const int nAllS = static_cast<int>(totalNanoseconds / NS_PER_SECOND) + 1;
    const int nVecSize = nAllS / nInv;
    QVector<double> vec(nVecSize); // 默认初始化为0


    double x_max = 0;
    double y_max = 0;
    for(auto info : data) {
        const qint64 ns = (info.dTime * 5) / NS_PER_SECOND;
            const int nidx = static_cast<int>(ns / nInv); // 整数除法，速度快
        if (nidx < nVecSize) {
            ++vec[nidx]; // 使用 ++ 而非 vec[nidx]++
            if ( y_max < vec[nidx] )
                y_max = vec[nidx];
        }
    }

    QVector<double> vecXpt(vec.size());
    for (int i = 0; i < vec.size(); ++i) {
        vecXpt[i] = static_cast<double>(i);
        if ( x_max < vecXpt[i] )
            x_max = vecXpt[i];
    }
    plot->SetAxisInitRange(QwtPlot::xBottom, 0.0f, x_max);
    plot->SetAxisInitRange(QwtPlot::yLeft, 0.0f, y_max);
    // 创建曲线并设置数据
    QwtPlotCurve *curve = new QwtPlotCurve();
    curve->setSamples(vecXpt, vec);
    // 将曲线添加到 CustomQwtPlot 中（会自动分配颜色）
    plot->AddCurve(curve);
    // 设置坐标轴范围和标题
//    plot->setAxisScale(QwtPlot::xBottom, 0, x.last());
//    plot->setAxisScale(QwtPlot::yLeft,minValue , maxValue);

    LOG_INFO(QStringLiteral(u"%1数据读取完毕.").arg(this->GetViewName()));

    // 刷新绘图
    plot->replot();

}

QVector<ParticleInjectTime> CountRateAnalysisView::getParticleInjectTimeData(QString path)
{
   QVector<ParticleInjectTime> records;
   io::CSVReader<4> in(QStrToSysPath(path));
   in.read_header(io::ignore_extra_column, "板卡号", "通道号", "能量(KeV)", "时间计数");

   int board, channel;
   double energy, time_count;
   int lineNumber = 0;

   // 逐行读取
    while (in.read_row(board, channel, energy, time_count))
    {
     int detector = board + channel * 8;
     lineNumber++;
     if(detector >= 32)
     {
         continue;
     }
     ParticleInjectTime rec;
     rec.index = lineNumber;
     rec.dEnergy   = energy;
     rec.dTime = time_count;
     records.append(rec);
    }

    return records;
}

void CountRateAnalysisView::InitUi()
{
    plot = new CustomQwtPlot();
    setupPlot();
    ui->verticalLayout_2->addWidget(plot);
}

void CountRateAnalysisView::setupPlot()
{
    plot->setCanvasBackground(Qt::white);
    QwtPlotCanvas* canvas = qobject_cast<QwtPlotCanvas*>(plot->canvas());
    canvas->setFrameStyle(QFrame::NoFrame);

    plot->setAxisTitle(QwtPlot::xBottom, QStringLiteral(u"时间"));
    plot->setAxisTitle(QwtPlot::yLeft, QStringLiteral(u"计数"));
    // set axis auto scale
    plot->setAxisAutoScale(QwtPlot::xBottom, true);
    plot->setAxisAutoScale(QwtPlot::yLeft, true);
    // 启用网格线
    plot->enableAxis(QwtPlot::xBottom);
    plot->enableAxis(QwtPlot::yLeft);

    // 设置QWT图例
//    QwtLegend* legend = new QwtLegend();
//    legend->setDefaultItemMode(QwtLegendData::ReadOnly);
//    plot->insertLegend(legend, QwtPlot::RightLegend);

    plot->SetAxisDragScale(QwtPlot::xBottom, true);
}

void CountRateAnalysisView::setupMenu()
{
    this->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(this, &CountRateAnalysisView::customContextMenuRequested, [this](const QPoint& pos) {
        this->_menu->exec(this->mapToGlobal(pos));
    });
    QAction* action_plot_reset = this->_menu->addAction(QStringLiteral(u"还原"));
    action_plot_reset->setObjectName("plot_reset");
    connect(action_plot_reset, &QAction::triggered, [this]() {
        this->plot->ResetPlot();
    });
    this->_menu->addSeparator();
    QAction* action_plot_config = this->_menu->addAction(QStringLiteral(u"图表配置"));
    action_plot_config->setObjectName("plot_config");
    connect(action_plot_config, &QAction::triggered, this, &CountRateAnalysisView::onActionPlotConfigure);

}

void CountRateAnalysisView::onActionPlotConfigure()
{

}