// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#include <QVBoxLayout>
#include "JFJochViewerSidePanelChart.h"

JFJochViewerSidePanelChart::JFJochViewerSidePanelChart(QWidget *parent) : QWidget(parent) {
    auto layout = new QVBoxLayout(this);

    combo_box = new QComboBox(this);
    combo_box->addItem("Azimuthal integration (1D)", 0);
    combo_box->addItem("Azimuthal integration (2D)", 3);
    combo_box->addItem("Wilson plot", 1);
    combo_box->addItem("I/sigma", 2);
    combo_box->addItem("Spots (count)", 5);
    combo_box->addItem("Spots (intensity)", 6);
    combo_box->addItem("X-ray fluorescence spectrum", 4);

    layout->addWidget(combo_box);

    connect(combo_box, &QComboBox::currentIndexChanged,
            this, &JFJochViewerSidePanelChart::comboBoxSelected);

    azint_plot = new JFJochSimpleChartView(this);
    azint_image = new JFJochAzIntImageView(this);
    one_over_d_sq_plot = new JFJochOneOverResSqChartView(this);

    stack = new QStackedWidget(this);
    stack->addWidget(azint_plot); // index 0
    stack->addWidget(azint_image); // index 1
    stack->addWidget(one_over_d_sq_plot); // index 2

    layout->addWidget(stack);

    setLayout(layout);
}

void JFJochViewerSidePanelChart::comboBoxSelected(int val) {
    redrawPlot();
}

void JFJochViewerSidePanelChart::redrawPlot() {
    std::vector<float> x, y;

    if (image) {
        auto index = combo_box->currentIndex();
        switch (combo_box->itemData(index).toInt()) {
            case 0:
                x = image->GetAzInt1D_BinToQ();
                y = image->GetAzInt1D();
                azint_plot->UpdateData(x, y, "Q [Å^-1]", "");
                stack->setCurrentWidget(azint_plot);
                break;
            case 1:
                x = image->ImageData().integration_B_one_over_d_square;
                y = image->ImageData().integration_B_logI;
                one_over_d_sq_plot->UpdateData(x, y, "d [Å]", "ln(&lt;I&gt;)");
                stack->setCurrentWidget(one_over_d_sq_plot);
                break;
            case 2:
                x = image->ImageData().integration_Isigma_one_over_d_square;
                y = image->ImageData().integration_Isigma;
                one_over_d_sq_plot->UpdateData(x, y, "d [Å]", "I/sigma");
                stack->setCurrentWidget(one_over_d_sq_plot);
                break;
            case 4:
                x = image->Dataset().experiment.GetFluorescenceSpectrum().GetEnergy_eV();
                y = image->Dataset().experiment.GetFluorescenceSpectrum().GetData();
                azint_plot->UpdateData(x, y, "E [eV]", "");
                stack->setCurrentWidget(azint_plot);
                break;
            case 5:
                x = image->ImageData().spot_plot_one_over_d_square;
                y = image->ImageData().spot_plot_count;
                one_over_d_sq_plot->UpdateData(x, y, "d [Å]", "Count");
                stack->setCurrentWidget(one_over_d_sq_plot);
                break;
            case 6:
                x = image->ImageData().spot_plot_one_over_d_square;
                y = image->ImageData().spot_plot_intensity;
                one_over_d_sq_plot->UpdateData(x, y, "d [Å]", "Count");
                stack->setCurrentWidget(one_over_d_sq_plot);
                break;
            case 3: {
                // Render 2D azimuthal integration as an image
                const auto &profile = image->ImageData().az_int_profile;
                const auto &ds = image->Dataset();
                int az_bins = ds.azimuthal_bins;
                int q_bins = ds.q_bins;
                if (az_bins > 1 && q_bins > 0 && profile.size() == static_cast<size_t>(az_bins * q_bins)) {
                    azint_image->SetData(profile, az_bins, q_bins);
                } else {
                    azint_image->Clear();
                }
                stack->setCurrentWidget(azint_image);
                break;
            }
        }
    }
}

void JFJochViewerSidePanelChart::loadImage(std::shared_ptr<const JFJochReaderImage> in_image) {
    image = in_image;
    redrawPlot();
}