#include "MeasureAnalysisParticleCountPlotView.h"
#include "CustomQwtPlot.h"
#include "csv.h"
#include <GlobalDefine.h>
#include <QHBoxLayout>
#include <QPen>
#include <QRegularExpression>
#include <QVector>
#include <QwtLegend>
#include <QwtPlotCanvas>
#include <QwtPlotCurve>

MeasureAnalysisParticleCountPlotView::MeasureAnalysisParticleCountPlotView(QWidget* parent)
    : MeasureAnalysisView { parent }
{
    this->setViewType(PlotFrame);

    QHBoxLayout* layout = new QHBoxLayout(this);
    _plot = new CustomQwtPlot(this);
    layout->addWidget(_plot);

    setupPlot();
}

void MeasureAnalysisParticleCountPlotView::SetAnalyzeDataFilename(const QMap<QString, QVariant>& data_files_set)
{
    auto extractNumber = [](const QString& str) {
        int ret_num = 0;
        QRegularExpression regex("\\d+");
        QRegularExpressionMatch match = regex.match(str);
        if (match.hasMatch()) {
            ret_num = match.captured().toInt();
        }
        return ret_num;
    };
    QStringList ch_count_data_name = data_files_set.keys();
    std::sort(ch_count_data_name.begin(), ch_count_data_name.end(), [extractNumber](const QString& a, const QString& b) {
        int num_a = extractNumber(a);
        int num_b = extractNumber(b);
        return num_a < num_b;
    });
    for (const QString& ch_count_data_name : ch_count_data_name) {
        if (ch_count_data_name.contains(ch_count_data_name)) {
            const QString ch_count_data_filename = data_files_set[ch_count_data_name].toString();
            loadDataFromFile(ch_count_data_name, ch_count_data_filename);
        }
    }
}

void MeasureAnalysisParticleCountPlotView::setupPlot()
{
    _plot->setTitle(QString(QStringLiteral(u"粒子计数谱")));

    _plot->setCanvasBackground(Qt::white);
    QwtPlotCanvas* canvas = qobject_cast<QwtPlotCanvas*>(_plot->canvas());
    canvas->setFrameStyle(QFrame::NoFrame);

    _plot->setAxisTitle(QwtPlot::xBottom, QString(QStringLiteral(u"道址")));
    _plot->setAxisTitle(QwtPlot::yLeft, QString(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::Checkable);
    _plot->insertLegend(legend, QwtPlot::RightLegend);
}

void MeasureAnalysisParticleCountPlotView::loadDataFromFile(const QString& data_name, const QString& filename)
{
    std::string address_str = QString(QStringLiteral(u"道址")).toStdString();
    std::string count_str = QString(QStringLiteral(u"计数")).toStdString();

    io::CSVReader<
        2,
        io::trim_chars<' ', '\t'>,
        io::double_quote_escape<',', '"'>,
        io::throw_on_overflow,
        io::empty_line_comment>
        reader(QStrToSysPath(filename));
    reader.read_header(io::ignore_extra_column, address_str, count_str);

    int address;
    int particle_count;
    QVector<float> x, y;
    while (reader.read_row(address, particle_count)) {
        x.push_back(address);
        y.push_back(particle_count);
    }

    // 绘制曲线
    QwtPlotCurve* curve = new QwtPlotCurve(data_name);
    curve->setSamples(x, y);
    _plot->AddCurve(curve);
    LOG_DEBUG(data_name);
}