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

#include <QHBoxLayout>
#include <QPushButton>
#include <QColorDialog>

#include "JFJochViewerSidePanel.h"

#include "widgets/JFJochViewerImageROIStatistics.h"
#include "widgets/TitleLabel.h"
#include "widgets/JFJochViewerImageStatistics.h"
#include "widgets/PowderCalibrationWidget.h"

JFJochViewerSidePanel::JFJochViewerSidePanel(QWidget *parent) : QWidget(parent) {

    auto layout = new QVBoxLayout(this);

    layout->addWidget(new TitleLabel("Image statistics", this));

    auto stats = new JFJochViewerImageStatistics(this);
    layout->addWidget(stats);
    connect(this, &JFJochViewerSidePanel::imageLoaded, stats, &JFJochViewerImageStatistics::loadImage);

    layout->addWidget(new TitleLabel("Image features", this));

    auto spotToggleCheckBox = new QCheckBox("Show spots", this);
    spotToggleCheckBox->setCheckState(Qt::CheckState::Unchecked);

    connect(spotToggleCheckBox, &QCheckBox::toggled, this, &JFJochViewerSidePanel::spotsToggled);

    auto highlightIceRingToggleCheckBox = new QCheckBox("Highlight spots on ice rings", this);
    highlightIceRingToggleCheckBox->setCheckState(Qt::CheckState::Checked);
    connect(highlightIceRingToggleCheckBox, &QCheckBox::toggled, this,&JFJochViewerSidePanel::highlightIceRingsToggled);

    auto predictionsToggleCheckBox = new QCheckBox("Show predictions", this);
    predictionsToggleCheckBox->setCheckState(Qt::CheckState::Unchecked);

    connect(predictionsToggleCheckBox, &QCheckBox::toggled, this,
            &JFJochViewerSidePanel::predictionsToggled);

    auto highestPixelsComboBox = new QComboBox(this);
    highestPixelsComboBox->addItem("Show 0 highest pixels", 0);
    highestPixelsComboBox->addItem("Show 1 highest pixel", 1);
    highestPixelsComboBox->addItem("Show 2 highest pixels", 2);
    highestPixelsComboBox->addItem("Show 3 highest pixels", 3);
    highestPixelsComboBox->addItem("Show 5 highest pixels", 5);
    highestPixelsComboBox->addItem("Show 10 highest pixels", 10);
    highestPixelsComboBox->setCurrentIndex(0);

    connect(highestPixelsComboBox, &QComboBox::currentIndexChanged, this, [this, highestPixelsComboBox](int index) {
        int value = highestPixelsComboBox->itemData(index).toInt();
        emit showHighestPixels(value);
    });

    auto saturatedPixelsCheckBox = new QCheckBox("Show saturated pixels", this);

    connect(saturatedPixelsCheckBox, &QCheckBox::toggled, this, &JFJochViewerSidePanel::saturatedPixelsToggled);

    auto colorSelectButton = new QPushButton("Select feature color", this);

    connect(colorSelectButton, &QPushButton::clicked, this, [this]() {
        QColor color = QColorDialog::getColor(Qt::magenta, this, "Select Feature Color");
        if (color.isValid()) {
            emit setFeatureColor(color);
        }
    });

    auto spotColorSelectButton = new QPushButton("Select spot color", this);

    connect(spotColorSelectButton, &QPushButton::clicked, this, [this]() {
        QColor color = QColorDialog::getColor(Qt::green, this, "Select Spot Color");
        if (color.isValid()) {
            emit setSpotColor(color);
        }
    });

    auto image_feature_grid = new QGridLayout();
    image_feature_grid->addWidget(spotToggleCheckBox, 0, 0);
    image_feature_grid->addWidget(highlightIceRingToggleCheckBox, 0, 1);
    image_feature_grid->addWidget(predictionsToggleCheckBox, 1, 0);

    image_feature_grid->addWidget(saturatedPixelsCheckBox, 2, 0);
    image_feature_grid->addWidget(highestPixelsComboBox, 2, 1);
    image_feature_grid->addWidget(colorSelectButton, 3, 0);
    image_feature_grid->addWidget(spotColorSelectButton, 3, 1);

    layout->addLayout(image_feature_grid);

    layout->addWidget(new TitleLabel("Resolution rings", this));
    res_rings = new ResolutionRingWidget(this);

    connect(res_rings, &ResolutionRingWidget::resRingsSet, [this] (const QVector<float> &v) {
        emit resRingsSet(v);
    });

    connect(res_rings, &ResolutionRingWidget::ringModeSet, [this] (JFJochDiffractionImage::RingMode mode) {
        emit ringModeSet(mode);
    });

    layout->addWidget(res_rings);

    layout->addWidget(new TitleLabel("Image statistics plot", this));
    chart = new JFJochViewerSidePanelChart(this);
    layout->addWidget(chart);

    connect(this, &JFJochViewerSidePanel::imageLoaded,
            chart, &JFJochViewerSidePanelChart::loadImage);
    connect(chart, &JFJochViewerSidePanelChart::writeStatusBar,
    [&] (QString string, int timeout_ms) {
        emit writeStatusBar(string, timeout_ms);
    });

    layout->addWidget(new TitleLabel("ROI", this));

    roi = new JFJochViewerImageROIStatistics(this);
    layout->addWidget(roi);

    connect(roi, &JFJochViewerImageROIStatistics::ROIBoxConfigured, [this] (QRect box) {
        emit ROIBoxConfigured(box);
    });

    connect(roi, &JFJochViewerImageROIStatistics::ROICircleConfigured, [this] (double x, double y, double radius) {
        emit ROICircleConfigured(x, y, radius);
    });

    connect(roi, &JFJochViewerImageROIStatistics::AddROIToUserMask, [this]() { emit AddROIToUserMask(); });
    connect(roi, &JFJochViewerImageROIStatistics::SubtractROIFromUserMask, [this]() { emit SubtractROIFromUserMask(); });

    layout->addWidget(new TitleLabel("Data analysis", this));

    auto analyzeButton = new QPushButton("Full analysis", this);
    connect(analyzeButton, &QPushButton::clicked,[this] {emit analyze();});
    layout->addWidget(analyzeButton);

    // Calibrant selection combo box
    layout->addWidget(new TitleLabel("Powder geometry calibration", this));

    auto power_calibration = new PowderCalibrationWidget(this);
    layout->addWidget(power_calibration);

    connect(this, &JFJochViewerSidePanel::imageLoaded, power_calibration, &PowderCalibrationWidget::loadImage);
    connect(power_calibration, &PowderCalibrationWidget::ringsFromCalibration, res_rings, &ResolutionRingWidget::setRings);
    connect(power_calibration, &PowderCalibrationWidget::findBeamCenter,
        [this] (const UnitCell& input, bool guess) {
            emit findBeamCenter(input, guess);
        });

    layout->addStretch();
    setLayout(layout); // Set the layout to the widget
}

void JFJochViewerSidePanel::spotsToggled(bool input) {
    emit showSpots(input);
}

void JFJochViewerSidePanel::predictionsToggled(bool input) {
    emit showPredictions(input);
}

void JFJochViewerSidePanel::loadImage(std::shared_ptr<const JFJochReaderImage> image) {
    emit imageLoaded(image);
}

void JFJochViewerSidePanel::saturatedPixelsToggled(bool input) {
    emit showSaturatedPixels(input);
}

void JFJochViewerSidePanel::highlightIceRingsToggled(bool input) {
    emit highlightIceRings(input);
}

void JFJochViewerSidePanel::SetROIBox(QRect box) {
    roi->SetROIBox(box);
}

void JFJochViewerSidePanel::SetROICircle(double x, double y, double radius) {
    roi->SetROICircle(x, y, radius);
}

void JFJochViewerSidePanel::SetROIResult(ROIMessage msg) {
    roi->SetROIResult(msg);
}

void JFJochViewerSidePanel::SetRings(QVector<float> v) {
    res_rings->setRings(v);
}