#include "CountRateAnalysis.h"
#include "ui_CountRateAnalysis.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>

CountRateAnalysis::CountRateAnalysis(QWidget *parent) :
    MeasureAnalysisView(parent),
    ui(new Ui::CountRateAnalysis)
{
    ui->setupUi(this);
    InitUi();

}

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

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

}

void CountRateAnalysis::SetAnalyzeDataFilename(const QMap<QString, QVariant> &data_files_set)
{
    if(!data_files_set.isEmpty())
    {
        m_AllData = getParticleInjectTimeData(data_files_set.first().toString());
        setData(m_AllData);
    }
}

void CountRateAnalysis::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 minValue = 0;
    double maxValue = 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]++
    }

    QVector<double> vecXpt(vec.size());
    for (int i = 0; i < vec.size(); ++i)
        vecXpt[i] = static_cast<double>(i);

    // 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> CountRateAnalysis::getParticleInjectTimeData(QString path)
{
   QVector<ParticleInjectTime> records;
   QFile file(path);

   if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
       qWarning() << "无法打开文件：" << file.errorString();
       return records;
   }
   QTextStream stream(&file);
   stream.setCodec("UTF-8");
   int lineNumber = 0;
   while (!stream.atEnd())
   {
        QString line = stream.readLine().trimmed();
        lineNumber++;

        // 跳过空行
        if (line.isEmpty())
            continue;

        // 按逗号分割
        QStringList fields = line.split(',');

        // 检查字段数量是否正确（应该为4）
        if (fields.size() != 4) {
            qWarning() << "行" << lineNumber << "字段数量不正确，跳过:" << line;
            continue;
        }

        //获取板卡号通道号
        int bd = fields[0].toInt();
        int ch = fields[1].toInt();
        int detector = bd + ch * 8;
        if(detector >= 32)
        {
            continue;
        }

        bool ok;
        ParticleInjectTime rec;
        rec.bd = bd;
        rec.ch = ch;
        rec.index = lineNumber;
        rec.dEnergy   = fields[2].toDouble(&ok);
        rec.dTime = fields[3].toLongLong(&ok);
        records.append(rec);
    }

    file.close();

    return records;
}

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

void CountRateAnalysis::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->SetXaxisDragScale(true);
}