// 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/TitleLabel.h"
#include "widgets/CollapsibleSection.h"
#include "widgets/JFJochViewerImageStatistics.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);

    auto *featuresSection = new CollapsibleSection("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);

    featuresSection->setContentLayout(image_feature_grid);
    featuresSection->setExpanded(false);
    layout->addWidget(featuresSection);

    auto *ringsSection = new CollapsibleSection("Resolution rings", this);
    auto *ringsLayout = new QVBoxLayout();
    ringsLayout->setContentsMargins(0, 0, 0, 0);
    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);
    });

    ringsLayout->addWidget(res_rings);
    ringsSection->setContentLayout(ringsLayout);
    ringsSection->setExpanded(false);
    layout->addWidget(ringsSection);

    // The per-image statistics plot now lives in the dataset-info dock (its "Per-image" toggle),
    // and powder calibration / full analysis live in the settings dock and the hero buttons,
    // so they are no longer duplicated here.

    roiSection = new CollapsibleSection("ROI", this);
    auto *roiLayout = new QVBoxLayout();
    roiLayout->setContentsMargins(0, 0, 0, 0);

    auto roiLabelsCheckBox = new QCheckBox("Show labels", this);
    roiLabelsCheckBox->setCheckState(Qt::CheckState::Unchecked);
    connect(roiLabelsCheckBox, &QCheckBox::toggled, this, &JFJochViewerSidePanel::showROILabels);

    auto roiFillCheckBox = new QCheckBox("Translucent fill", this);
    roiFillCheckBox->setCheckState(Qt::CheckState::Unchecked);
    connect(roiFillCheckBox, &QCheckBox::toggled, this, &JFJochViewerSidePanel::showROIFill);

    auto roiToggleRow = new QHBoxLayout();
    roiToggleRow->addWidget(roiLabelsCheckBox);
    roiToggleRow->addWidget(roiFillCheckBox);
    roiLayout->addLayout(roiToggleRow);

    roi_list = new JFJochViewerROIList(this);
    roiLayout->addWidget(roi_list);
    connect(this, &JFJochViewerSidePanel::imageLoaded, roi_list, &JFJochViewerROIList::loadImage);
    connect(roi_list, &JFJochViewerROIList::roisChanged, this, &JFJochViewerSidePanel::roisChanged);
    connect(roi_list, &JFJochViewerROIList::selectedROIChanged, this, &JFJochViewerSidePanel::selectedROIChanged);
    connect(roi_list, &JFJochViewerROIList::downloadROIs, this, &JFJochViewerSidePanel::downloadROIs);
    connect(roi_list, &JFJochViewerROIList::uploadROIs, this, &JFJochViewerSidePanel::uploadROIs);
    connect(roi_list, &JFJochViewerROIList::maskFromROI, this, &JFJochViewerSidePanel::maskFromROI);
    connect(roi_list, &JFJochViewerROIList::roisChanged, this, [this] { roiSection->setExpanded(true); });
    roiSection->setContentLayout(roiLayout);
    roiSection->setExpanded(false);
    layout->addWidget(roiSection);

    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::selectROIInList(QString name) {
    roi_list->setSelected(name);
}

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