// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#include "textureeditorview.h"

#include "textureeditorqmlbackend.h"
#include "textureeditorcontextobject.h"
#include "textureeditordynamicpropertiesproxymodel.h"
#include "propertyeditorvalue.h"
#include "textureeditortransaction.h"
#include "assetslibrarywidget.h"

#include <auxiliarydataproperties.h>
#include <bindingproperty.h>
#include <dynamicpropertiesmodel.h>
#include <metainfo.h>
#include <nodeinstanceview.h>
#include <nodelistproperty.h>
#include <nodemetainfo.h>
#include <nodeproperty.h>
#include <rewritingexception.h>
#include <variantproperty.h>
#include <qmldesignerconstants.h>
#include <qmldesignerplugin.h>
#include <qmltimeline.h>

#include <theme.h>

#include <coreplugin/icore.h>
#include <coreplugin/messagebox.h>
#include <designdocument.h>
#include <designmodewidget.h>
#include <propertyeditorqmlbackend.h>
#include <utils/environment.h>
#include <utils/fileutils.h>
#include <utils/qtcassert.h>
#include <qmldesignerplugin.h>

#include <QApplication>
#include <QDebug>
#include <QDir>
#include <QFileInfo>
#include <QQuickWidget>
#include <QQuickItem>
#include <QScopedPointer>
#include <QStackedWidget>
#include <QShortcut>
#include <QTimer>
#include <QColorDialog>

namespace QmlDesigner {

TextureEditorView::TextureEditorView(AsynchronousImageCache &imageCache,
                                     ExternalDependenciesInterface &externalDependencies)
    : AbstractView{externalDependencies}
    , m_imageCache(imageCache)
    , m_stackedWidget(new QStackedWidget)
    , m_dynamicPropertiesModel(new DynamicPropertiesModel(true, this))
{
    m_updateShortcut = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_F12), m_stackedWidget);
    connect(m_updateShortcut, &QShortcut::activated, this, &TextureEditorView::reloadQml);

    m_ensureMatLibTimer.callOnTimeout([this] {
        if (model() && model()->rewriterView() && !model()->rewriterView()->hasIncompleteTypeInformation()
            && model()->rewriterView()->errors().isEmpty()) {
            DesignDocument *doc = QmlDesignerPlugin::instance()->currentDesignDocument();
            if (doc && !doc->inFileComponentModelActive())
                ensureMaterialLibraryNode();
            if (m_qmlBackEnd && m_qmlBackEnd->contextObject())
                m_qmlBackEnd->contextObject()->setHasMaterialLibrary(materialLibraryNode().isValid());
            m_ensureMatLibTimer.stop();
        }
    });

    m_stackedWidget->setStyleSheet(Theme::replaceCssColors(
        QString::fromUtf8(Utils::FileReader::fetchQrc(":/qmldesigner/stylesheet.css"))));
    m_stackedWidget->setMinimumWidth(250);
    QmlDesignerPlugin::trackWidgetFocusTime(m_stackedWidget, Constants::EVENT_TEXTUREEDITOR_TIME);

    TextureEditorDynamicPropertiesProxyModel::registerDeclarativeType();
}

TextureEditorView::~TextureEditorView()
{
    qDeleteAll(m_qmlBackendHash);
}

// from texture editor to model
void TextureEditorView::changeValue(const QString &name)
{
    PropertyName propertyName = name.toUtf8();

    if (propertyName.isNull() || locked() || noValidSelection() || propertyName == "id"
        || propertyName == Constants::PROPERTY_EDITOR_CLASSNAME_PROPERTY) {
        return;
    }

    PropertyName underscoreName(propertyName);
    underscoreName.replace('.', '_');
    PropertyEditorValue *value = m_qmlBackEnd->propertyValueForName(QString::fromLatin1(underscoreName));

    if (!value)
        return;

    if (propertyName.endsWith("__AUX")) {
        commitAuxValueToModel(propertyName, value->value());
        return;
    }

    const NodeMetaInfo metaInfo = m_selectedTexture.metaInfo();

    QVariant castedValue;

    if (auto property = metaInfo.property(propertyName)) {
        castedValue = property.castedValue(value->value());
    } else {
        qWarning() << __FUNCTION__ << propertyName << "cannot be casted (metainfo)";
        return;
    }

    if (value->value().isValid() && !castedValue.isValid()) {
        qWarning() << __FUNCTION__ << propertyName << "not properly casted (metainfo)";
        return;
    }

    bool propertyTypeUrl = false;

    if (auto property = metaInfo.property(propertyName)) {
        if (property.propertyType().isUrl()) {
            // turn absolute local file paths into relative paths
            propertyTypeUrl = true;
            QString filePath = castedValue.toUrl().toString();
            QFileInfo fi(filePath);
            if (fi.exists() && fi.isAbsolute()) {
                QDir fileDir(QFileInfo(model()->fileUrl().toLocalFile()).absolutePath());
                castedValue = QUrl(fileDir.relativeFilePath(filePath));
            }
        }
    }

    if (name == "state" && castedValue.toString() == "base state")
        castedValue = "";

    if (castedValue.type() == QVariant::Color) {
        QColor color = castedValue.value<QColor>();
        QColor newColor = QColor(color.name());
        newColor.setAlpha(color.alpha());
        castedValue = QVariant(newColor);
    }

    if (!value->value().isValid() || (propertyTypeUrl && value->value().toString().isEmpty())) { // reset
        removePropertyFromModel(propertyName);
    } else {
        // QVector*D(0, 0, 0) detects as null variant though it is valid value
        if (castedValue.isValid()
            && (!castedValue.isNull() || castedValue.type() == QVariant::Vector2D
                || castedValue.type() == QVariant::Vector3D
                || castedValue.type() == QVariant::Vector4D)) {
            commitVariantValueToModel(propertyName, castedValue);
        }
    }
}

static bool isTrueFalseLiteral(const QString &expression)
{
    return (expression.compare("false", Qt::CaseInsensitive) == 0)
           || (expression.compare("true", Qt::CaseInsensitive) == 0);
}

void TextureEditorView::changeExpression(const QString &propertyName)
{
    PropertyName name = propertyName.toUtf8();

    if (name.isNull() || locked() || noValidSelection())
        return;

    executeInTransaction("TextureEditorView::changeExpression", [this, name] {
        PropertyName underscoreName(name);
        underscoreName.replace('.', '_');

        QmlObjectNode qmlObjectNode(m_selectedTexture);
        PropertyEditorValue *value = m_qmlBackEnd->propertyValueForName(QString::fromLatin1(underscoreName));

        if (!value) {
            qWarning() << __FUNCTION__ << "no value for " << underscoreName;
            return;
        }

        if (auto property = m_selectedTexture.metaInfo().property(name)) {
            auto propertyTypeName = property.propertyType().typeName();
            if (propertyTypeName == "QColor") {
                if (QColor(value->expression().remove('"')).isValid()) {
                    qmlObjectNode.setVariantProperty(name, QColor(value->expression().remove('"')));
                    return;
                }
            } else if (propertyTypeName == "bool") {
                if (isTrueFalseLiteral(value->expression())) {
                    if (value->expression().compare("true", Qt::CaseInsensitive) == 0)
                        qmlObjectNode.setVariantProperty(name, true);
                    else
                        qmlObjectNode.setVariantProperty(name, false);
                    return;
                }
            } else if (propertyTypeName == "int") {
                bool ok;
                int intValue = value->expression().toInt(&ok);
                if (ok) {
                    qmlObjectNode.setVariantProperty(name, intValue);
                    return;
                }
            } else if (propertyTypeName == "qreal") {
                bool ok;
                qreal realValue = value->expression().toDouble(&ok);
                if (ok) {
                    qmlObjectNode.setVariantProperty(name, realValue);
                    return;
                }
            } else if (propertyTypeName == "QVariant") {
                bool ok;
                qreal realValue = value->expression().toDouble(&ok);
                if (ok) {
                    qmlObjectNode.setVariantProperty(name, realValue);
                    return;
                } else if (isTrueFalseLiteral(value->expression())) {
                    if (value->expression().compare("true", Qt::CaseInsensitive) == 0)
                        qmlObjectNode.setVariantProperty(name, true);
                    else
                        qmlObjectNode.setVariantProperty(name, false);
                    return;
                }
            }
        }

        if (value->expression().isEmpty()) {
            value->resetValue();
            return;
        }

        if (qmlObjectNode.expression(name) != value->expression() || !qmlObjectNode.propertyAffectedByCurrentState(name))
            qmlObjectNode.setBindingProperty(name, value->expression());
    });
}

void TextureEditorView::exportPropertyAsAlias(const QString &name)
{
    if (name.isNull() || locked() || noValidSelection())
        return;

    executeInTransaction("TextureEditorView::exportPopertyAsAlias", [this, name] {
        const QString id = m_selectedTexture.validId();
        QString upperCasePropertyName = name;
        upperCasePropertyName.replace(0, 1, upperCasePropertyName.at(0).toUpper());
        QString aliasName = id + upperCasePropertyName;
        aliasName.replace(".", ""); //remove all dots

        PropertyName propertyName = aliasName.toUtf8();
        if (rootModelNode().hasProperty(propertyName)) {
            Core::AsynchronousMessageBox::warning(tr("Cannot Export Property as Alias"),
                                                  tr("Property %1 does already exist for root component.").arg(aliasName));
            return;
        }
        rootModelNode().bindingProperty(propertyName).setDynamicTypeNameAndExpression("alias", id + "." + name);
    });
}

void TextureEditorView::removeAliasExport(const QString &name)
{
    if (name.isNull() || locked() || noValidSelection())
        return;

    executeInTransaction("TextureEditorView::removeAliasExport", [this, name] {
        const QString id = m_selectedTexture.validId();

        const QList<BindingProperty> bindingProps = rootModelNode().bindingProperties();
        for (const BindingProperty &property : bindingProps) {
            if (property.expression() == (id + "." + name)) {
                rootModelNode().removeProperty(property.name());
                break;
            }
        }
    });
}

bool TextureEditorView::locked() const
{
    return m_locked;
}

void TextureEditorView::currentTimelineChanged(const ModelNode &)
{
    m_qmlBackEnd->contextObject()->setHasActiveTimeline(QmlTimeline::hasActiveTimeline(this));
}

DynamicPropertiesModel *TextureEditorView::dynamicPropertiesModel() const
{
    return m_dynamicPropertiesModel;
}

TextureEditorView *TextureEditorView::instance()
{
    static TextureEditorView *s_instance = nullptr;

    if (s_instance)
        return s_instance;

    const auto views = QmlDesignerPlugin::instance()->viewManager().views();
    for (auto *view : views) {
        TextureEditorView *myView = qobject_cast<TextureEditorView *>(view);
        if (myView)
            s_instance =  myView;
    }

    QTC_ASSERT(s_instance, return nullptr);
    return s_instance;
}

void TextureEditorView::timerEvent(QTimerEvent *timerEvent)
{
    if (m_timerId == timerEvent->timerId())
        resetView();
}

void TextureEditorView::resetView()
{
    if (!model())
        return;

    m_locked = true;

    if (m_timerId)
        killTimer(m_timerId);

    setupQmlBackend();

    if (m_qmlBackEnd)
        m_qmlBackEnd->emitSelectionChanged();

    m_locked = false;

    if (m_timerId)
        m_timerId = 0;
}

// static
QString TextureEditorView::textureEditorResourcesPath()
{
#ifdef SHARE_QML_PATH
    if (Utils::qtcEnvironmentVariableIsSet("LOAD_QML_FROM_SOURCE"))
        return QLatin1String(SHARE_QML_PATH) + "/textureEditorQmlSource";
#endif
    return Core::ICore::resourcePath("qmldesigner/textureEditorQmlSource").toString();
}

void TextureEditorView::applyTextureToSelectedModel(const ModelNode &texture)
{
    if (!m_selectedModel.isValid())
        return;

    QTC_ASSERT(texture.isValid(), return);

    emitCustomNotification("apply_texture_to_model3D", {m_selectedModel, m_selectedTexture});
}

void TextureEditorView::handleToolBarAction(int action)
{
    QTC_ASSERT(m_hasQuick3DImport, return);

    switch (action) {
    case TextureEditorContextObject::ApplyToSelected: {
        applyTextureToSelectedModel(m_selectedTexture);
        break;
    }

    case TextureEditorContextObject::AddNewTexture: {
        if (!model())
            break;
        executeInTransaction("TextureEditorView:handleToolBarAction", [&] {
            ModelNode matLib = materialLibraryNode();
            if (!matLib.isValid())
                return;

            NodeMetaInfo metaInfo = model()->metaInfo("QtQuick3D.Texture");
            ModelNode newTextureNode = createModelNode("QtQuick3D.Texture", metaInfo.majorVersion(),
                                                                            metaInfo.minorVersion());
            newTextureNode.validId();
            matLib.defaultNodeListProperty().reparentHere(newTextureNode);
        });
        break;
    }

    case TextureEditorContextObject::DeleteCurrentTexture: {
        if (m_selectedTexture.isValid())
            m_selectedTexture.destroy();
        break;
    }

    case TextureEditorContextObject::OpenMaterialBrowser: {
        QmlDesignerPlugin::instance()->mainWidget()->showDockWidget("MaterialBrowser", true);
        break;
    }
    }
}

void TextureEditorView::setupQmlBackend()
{
    QUrl qmlPaneUrl;
    QUrl qmlSpecificsUrl;
    QString specificQmlData;

    if (m_selectedTexture.isValid() && m_hasQuick3DImport && (materialLibraryNode().isValid() || m_hasTextureRoot)) {
        qmlPaneUrl = QUrl::fromLocalFile(textureEditorResourcesPath() + "/TextureEditorPane.qml");

        TypeName diffClassName;
        if (NodeMetaInfo metaInfo = m_selectedTexture.metaInfo()) {
            diffClassName = metaInfo.typeName();
            for (const NodeMetaInfo &metaInfo : metaInfo.classHierarchy()) {
                if (PropertyEditorQmlBackend::checkIfUrlExists(qmlSpecificsUrl))
                    break;
                qmlSpecificsUrl = PropertyEditorQmlBackend::getQmlFileUrl(metaInfo.typeName()
                                                                          + "Specifics", metaInfo);
                diffClassName = metaInfo.typeName();
            }

            if (diffClassName != m_selectedTexture.type()) {
                specificQmlData = PropertyEditorQmlBackend::templateGeneration(metaInfo,
                                                                               model()->metaInfo(
                                                                                   diffClassName),
                                                                               m_selectedTexture);
            }
        }
    } else {
        qmlPaneUrl = QUrl::fromLocalFile(textureEditorResourcesPath() + "/EmptyTextureEditorPane.qml");
    }

    TextureEditorQmlBackend *currentQmlBackend = m_qmlBackendHash.value(qmlPaneUrl.toString());

    QString currentStateName = currentState().isBaseState() ? currentState().name() : "invalid state";

    if (!currentQmlBackend) {
        currentQmlBackend = new TextureEditorQmlBackend(this, m_imageCache);

        m_stackedWidget->addWidget(currentQmlBackend->widget());
        m_qmlBackendHash.insert(qmlPaneUrl.toString(), currentQmlBackend);

        currentQmlBackend->setup(m_selectedTexture, currentStateName, qmlSpecificsUrl, this);

        currentQmlBackend->setSource(qmlPaneUrl);

        QObject *rootObj = currentQmlBackend->widget()->rootObject();
        QObject::connect(rootObj, SIGNAL(toolBarAction(int)), this, SLOT(handleToolBarAction(int)));
    } else {
        currentQmlBackend->setup(m_selectedTexture, currentStateName, qmlSpecificsUrl, this);
    }

    currentQmlBackend->widget()->installEventFilter(this);
    currentQmlBackend->contextObject()->setHasQuick3DImport(m_hasQuick3DImport);
    currentQmlBackend->contextObject()->setHasMaterialLibrary(materialLibraryNode().isValid());
    currentQmlBackend->contextObject()->setSpecificQmlData(specificQmlData);
    bool hasValidSelection = QmlObjectNode(m_selectedModel).hasBindingProperty("materials");
    currentQmlBackend->contextObject()->setHasSingleModelSelection(hasValidSelection);

    m_qmlBackEnd = currentQmlBackend;

    if (m_hasTextureRoot)
        m_dynamicPropertiesModel->setSelectedNode(m_selectedTexture);
    else
        m_dynamicPropertiesModel->reset();

    m_stackedWidget->setCurrentWidget(m_qmlBackEnd->widget());
}

void TextureEditorView::commitVariantValueToModel(const PropertyName &propertyName, const QVariant &value)
{
    m_locked = true;
    executeInTransaction("TextureEditorView:commitVariantValueToModel", [&] {
        QmlObjectNode(m_selectedTexture).setVariantProperty(propertyName, value);
    });
    m_locked = false;
}

void TextureEditorView::commitAuxValueToModel(const PropertyName &propertyName, const QVariant &value)
{
    m_locked = true;

    PropertyName name = propertyName;
    name.chop(5);

    try {
        if (value.isValid())
            m_selectedTexture.setAuxiliaryData(AuxiliaryDataType::Document, name, value);
        else
            m_selectedTexture.removeAuxiliaryData(AuxiliaryDataType::Document, name);
    }
    catch (const Exception &e) {
        e.showException();
    }
    m_locked = false;
}

void TextureEditorView::removePropertyFromModel(const PropertyName &propertyName)
{
    m_locked = true;
    executeInTransaction("MaterialEditorView:removePropertyFromModel", [&] {
        QmlObjectNode(m_selectedTexture).removeProperty(propertyName);
    });
    m_locked = false;
}

bool TextureEditorView::noValidSelection() const
{
    QTC_ASSERT(m_qmlBackEnd, return true);
    return !QmlObjectNode::isValidQmlObjectNode(m_selectedTexture);
}

void TextureEditorView::modelAttached(Model *model)
{
    AbstractView::modelAttached(model);

    m_locked = true;

    m_hasQuick3DImport = model->hasImport("QtQuick3D");
    m_hasTextureRoot = rootModelNode().metaInfo().isQtQuick3DTexture();

    if (m_hasTextureRoot) {
        m_selectedTexture = rootModelNode();
    } else if (m_hasQuick3DImport) {
        // Creating the material library node on model attach causes errors as long as the type
        // information is not complete yet, so we keep checking until type info is complete.
        m_ensureMatLibTimer.start(500);
    }

    if (!m_setupCompleted) {
        reloadQml();
        m_setupCompleted = true;
    }
    resetView();

    m_locked = false;
}

void TextureEditorView::modelAboutToBeDetached(Model *model)
{
    AbstractView::modelAboutToBeDetached(model);
    m_dynamicPropertiesModel->reset();
    m_qmlBackEnd->textureEditorTransaction()->end();
    m_qmlBackEnd->contextObject()->setHasMaterialLibrary(false);
}

void TextureEditorView::propertiesRemoved(const QList<AbstractProperty> &propertyList)
{
    if (noValidSelection())
        return;

    for (const AbstractProperty &property : propertyList) {
        ModelNode node(property.parentModelNode());

        if (node.isRootNode())
            m_qmlBackEnd->contextObject()->setHasAliasExport(QmlObjectNode(m_selectedTexture).isAliasExported());

        if (node == m_selectedTexture || QmlObjectNode(m_selectedTexture).propertyChangeForCurrentState() == node) {
            // TODO: workaround for bug QDS-8539. To be removed once it is fixed.
            if (node.metaInfo().property(property.name()).propertyType().isUrl()) {
                resetPuppet();
            } else {
                setValue(m_selectedTexture, property.name(),
                         QmlObjectNode(m_selectedTexture).instanceValue(property.name()));
            }
        }

        if (property.name() == "materials" && (node == m_selectedModel
                    || QmlObjectNode(m_selectedModel).propertyChangeForCurrentState() == node)) {
            m_qmlBackEnd->contextObject()->setHasSingleModelSelection(false);
        }

        dynamicPropertiesModel()->dispatchPropertyChanges(property);
    }
}

void TextureEditorView::variantPropertiesChanged(const QList<VariantProperty> &propertyList, PropertyChangeFlags /*propertyChange*/)
{
    if (noValidSelection())
        return;

    for (const VariantProperty &property : propertyList) {
        ModelNode node(property.parentModelNode());
        if (node == m_selectedTexture || QmlObjectNode(m_selectedTexture).propertyChangeForCurrentState() == node) {
            if (property.isDynamic())
                m_dynamicPropertiesModel->variantPropertyChanged(property);
            if (m_selectedTexture.property(property.name()).isBindingProperty())
                setValue(m_selectedTexture, property.name(), QmlObjectNode(m_selectedTexture).instanceValue(property.name()));
            else
                setValue(m_selectedTexture, property.name(), QmlObjectNode(m_selectedTexture).modelValue(property.name()));
        }

        dynamicPropertiesModel()->dispatchPropertyChanges(property);
    }
}

void TextureEditorView::bindingPropertiesChanged(const QList<BindingProperty> &propertyList, PropertyChangeFlags /*propertyChange*/)
{
    if (noValidSelection())
        return;

    for (const BindingProperty &property : propertyList) {
        ModelNode node(property.parentModelNode());

        if (property.isAliasExport())
            m_qmlBackEnd->contextObject()->setHasAliasExport(QmlObjectNode(m_selectedTexture).isAliasExported());

        if (node == m_selectedTexture || QmlObjectNode(m_selectedTexture).propertyChangeForCurrentState() == node) {
            if (property.isDynamic())
                m_dynamicPropertiesModel->bindingPropertyChanged(property);
            if (QmlObjectNode(m_selectedTexture).modelNode().property(property.name()).isBindingProperty())
                setValue(m_selectedTexture, property.name(), QmlObjectNode(m_selectedTexture).instanceValue(property.name()));
            else
                setValue(m_selectedTexture, property.name(), QmlObjectNode(m_selectedTexture).modelValue(property.name()));
        }

        if (property.name() == "materials" && (node == m_selectedModel
                    || QmlObjectNode(m_selectedModel).propertyChangeForCurrentState() == node)) {
            bool hasMaterials = QmlObjectNode(m_selectedModel).hasBindingProperty("materials");
            m_qmlBackEnd->contextObject()->setHasSingleModelSelection(hasMaterials);
        }

        dynamicPropertiesModel()->dispatchPropertyChanges(property);
    }
}

void TextureEditorView::auxiliaryDataChanged(const ModelNode &node,
                                              AuxiliaryDataKeyView key,
                                              const QVariant &)
{

    if (noValidSelection() || !node.isSelected())
        return;

    m_qmlBackEnd->setValueforAuxiliaryProperties(m_selectedTexture, key);
}

void TextureEditorView::propertiesAboutToBeRemoved(const QList<AbstractProperty> &propertyList)
{
    for (const auto &property : propertyList) {
        if (property.isBindingProperty())
            m_dynamicPropertiesModel->bindingRemoved(property.toBindingProperty());
        else if (property.isVariantProperty())
            m_dynamicPropertiesModel->variantRemoved(property.toVariantProperty());
    }
}

void TextureEditorView::nodeReparented(const ModelNode &node,
                                       [[maybe_unused]] const NodeAbstractProperty &newPropertyParent,
                                       [[maybe_unused]] const NodeAbstractProperty &oldPropertyParent,
                                       [[maybe_unused]] PropertyChangeFlags propertyChange)
{
    if (node.id() == Constants::MATERIAL_LIB_ID && m_qmlBackEnd && m_qmlBackEnd->contextObject())
        m_qmlBackEnd->contextObject()->setHasMaterialLibrary(true);
}

void TextureEditorView::nodeAboutToBeRemoved(const ModelNode &removedNode)
{
    if (removedNode.id() == Constants::MATERIAL_LIB_ID && m_qmlBackEnd && m_qmlBackEnd->contextObject())
        m_qmlBackEnd->contextObject()->setHasMaterialLibrary(false);
}

bool TextureEditorView::hasWidget() const
{
    return true;
}

WidgetInfo TextureEditorView::widgetInfo()
{
    return createWidgetInfo(m_stackedWidget,
                            "TextureEditor",
                            WidgetInfo::RightPane,
                            0,
                            tr("Texture Editor"),
                            tr("Texture Editor view"));
}

void TextureEditorView::selectedNodesChanged(const QList<ModelNode> &selectedNodeList,
                                             [[maybe_unused]] const QList<ModelNode> &lastSelectedNodeList)
{
    m_selectedModel = {};

    if (selectedNodeList.size() == 1 && selectedNodeList.at(0).metaInfo().isQtQuick3DModel())
        m_selectedModel = selectedNodeList.at(0);

    bool hasValidSelection = QmlObjectNode(m_selectedModel).hasBindingProperty("materials");
    m_qmlBackEnd->contextObject()->setHasSingleModelSelection(hasValidSelection);
}

void TextureEditorView::currentStateChanged(const ModelNode &node)
{
    QmlModelState newQmlModelState(node);
    Q_ASSERT(newQmlModelState.isValid());
    resetView();
}

void TextureEditorView::instancePropertyChanged(const QList<QPair<ModelNode, PropertyName>> &propertyList)
{
    if (!m_selectedTexture.isValid() || !m_qmlBackEnd)
        return;

    m_locked = true;

    for (const QPair<ModelNode, PropertyName> &propertyPair : propertyList) {
        const ModelNode modelNode = propertyPair.first;
        const QmlObjectNode qmlObjectNode(modelNode);
        const PropertyName propertyName = propertyPair.second;

        if (qmlObjectNode.isValid() && modelNode == m_selectedTexture && qmlObjectNode.currentState().isValid()) {
            const AbstractProperty property = modelNode.property(propertyName);
            if (!modelNode.hasProperty(propertyName) || modelNode.property(property.name()).isBindingProperty())
                setValue(modelNode, property.name(), qmlObjectNode.instanceValue(property.name()));
            else
                setValue(modelNode, property.name(), qmlObjectNode.modelValue(property.name()));
        }
    }

    m_locked = false;
}

void TextureEditorView::importsChanged([[maybe_unused]] const QList<Import> &addedImports,
                                       [[maybe_unused]] const QList<Import> &removedImports)
{
    m_hasQuick3DImport = model()->hasImport("QtQuick3D");
    m_qmlBackEnd->contextObject()->setHasQuick3DImport(m_hasQuick3DImport);

    if (m_hasQuick3DImport)
        m_ensureMatLibTimer.start(500);

    resetView();
}

void TextureEditorView::duplicateTexture(const ModelNode &texture)
{
    QTC_ASSERT(texture.isValid(), return);

    if (!model())
        return;

    TypeName matType = texture.type();
    QmlObjectNode sourceTexture(texture);
    ModelNode duplicateTextureNode;
    QList<AbstractProperty> dynamicProps;

    executeInTransaction(__FUNCTION__, [&] {
        ModelNode matLib = materialLibraryNode();
        if (!matLib.isValid())
            return;

        // create the duplicate texture
        NodeMetaInfo metaInfo = model()->metaInfo(matType);
        QmlObjectNode duplicateTex = createModelNode(matType, metaInfo.majorVersion(), metaInfo.minorVersion());

        duplicateTextureNode = duplicateTex .modelNode();
        duplicateTextureNode.validId();

        // sync properties. Only the base state is duplicated.
        const QList<AbstractProperty> props = texture.properties();
        for (const AbstractProperty &prop : props) {
            if (prop.name() == "objectName" || prop.name() == "data")
                continue;

            if (prop.isVariantProperty()) {
                if (prop.isDynamic()) {
                    dynamicProps.append(prop);
                } else {
                    duplicateTextureNode.variantProperty(prop.name())
                            .setValue(prop.toVariantProperty().value());
                }
            } else if (prop.isBindingProperty()) {
                if (prop.isDynamic()) {
                    dynamicProps.append(prop);
                } else {
                    duplicateTextureNode.bindingProperty(prop.name())
                            .setExpression(prop.toBindingProperty().expression());
                }
            }
        }

        matLib.defaultNodeListProperty().reparentHere(duplicateTex);
    });

    // For some reason, creating dynamic properties in the same transaction doesn't work, so
    // let's do it in separate transaction.
    // TODO: Fix the issue and merge transactions (QDS-8094)
    if (!dynamicProps.isEmpty()) {
        executeInTransaction(__FUNCTION__, [&] {
            for (const AbstractProperty &prop : std::as_const(dynamicProps)) {
                if (prop.isVariantProperty()) {
                    duplicateTextureNode.variantProperty(prop.name())
                            .setDynamicTypeNameAndValue(prop.dynamicTypeName(),
                                                        prop.toVariantProperty().value());
                } else if (prop.isBindingProperty()) {
                    duplicateTextureNode.bindingProperty(prop.name())
                            .setDynamicTypeNameAndExpression(prop.dynamicTypeName(),
                                                             prop.toBindingProperty().expression());
                }
            }
        });
    }
}

void TextureEditorView::customNotification([[maybe_unused]] const AbstractView *view,
                                           const QString &identifier,
                                           const QList<ModelNode> &nodeList,
                                           [[maybe_unused]] const QList<QVariant> &data)
{
    if (identifier == "selected_texture_changed") {
        if (!m_hasTextureRoot) {
            m_selectedTexture = nodeList.first();
            m_dynamicPropertiesModel->setSelectedNode(m_selectedTexture);
            QTimer::singleShot(0, this, &TextureEditorView::resetView);
        }
    } else if (identifier == "apply_texture_to_selected_model") {
        applyTextureToSelectedModel(nodeList.first());
    } else if (identifier == "add_new_texture") {
        handleToolBarAction(TextureEditorContextObject::AddNewTexture);
    } else if (identifier == "duplicate_texture") {
        duplicateTexture(nodeList.first());
    }
}

void QmlDesigner::TextureEditorView::highlightSupportedProperties(bool highlight)
{
    if (!m_selectedTexture.isValid())
        return;

    DesignerPropertyMap &propMap = m_qmlBackEnd->backendValuesPropertyMap();
    const QStringList propNames = propMap.keys();
    NodeMetaInfo metaInfo = m_selectedTexture.metaInfo();
    QTC_ASSERT(metaInfo.isValid(), return);

    for (const QString &propName : propNames) {
        if (metaInfo.property(propName.toUtf8()).propertyType().isQtQuick3DTexture()) {
            QObject *propEditorValObj = propMap.value(propName).value<QObject *>();
            PropertyEditorValue *propEditorVal = qobject_cast<PropertyEditorValue *>(propEditorValObj);
            propEditorVal->setHasActiveDrag(highlight);
        } else if (metaInfo.property(propName.toUtf8()).propertyType().isUrl()) {
            QObject *propEditorValObj = propMap.value(propName).value<QObject *>();
            PropertyEditorValue *propEditorVal = qobject_cast<PropertyEditorValue *>(propEditorValObj);
            if (propEditorVal)
                propEditorVal->setHasActiveDrag(highlight);
        }
    }
}

void TextureEditorView::dragStarted(QMimeData *mimeData)
{
    if (!mimeData->hasFormat(Constants::MIME_TYPE_ASSETS))
        return;

    const QString assetPath = QString::fromUtf8(mimeData->data(Constants::MIME_TYPE_ASSETS)).split(',')[0];
    QString assetType = AssetsLibraryWidget::getAssetTypeAndData(assetPath).first;

    if (assetType != Constants::MIME_TYPE_ASSET_IMAGE) // currently only image assets have dnd-supported properties
        return;

    highlightSupportedProperties();

    const QString suffix = "*." + assetPath.split('.').last().toLower();
    m_qmlBackEnd->contextObject()->setActiveDragSuffix(suffix);
}

void TextureEditorView::dragEnded()
{
    highlightSupportedProperties(false);
    m_qmlBackEnd->contextObject()->setActiveDragSuffix("");
}

// from model to texture editor
void TextureEditorView::setValue(const QmlObjectNode &qmlObjectNode, const PropertyName &name, const QVariant &value)
{
    m_locked = true;
    m_qmlBackEnd->setValue(qmlObjectNode, name, value);
    m_locked = false;
}

bool TextureEditorView::eventFilter(QObject *obj, QEvent *event)
{
    if (event->type() == QEvent::FocusOut) {
        if (m_qmlBackEnd && m_qmlBackEnd->widget() == obj)
            QMetaObject::invokeMethod(m_qmlBackEnd->widget()->rootObject(), "closeContextMenu");
    }
    return QObject::eventFilter(obj, event);
}

void TextureEditorView::reloadQml()
{
    m_qmlBackendHash.clear();
    while (QWidget *widget = m_stackedWidget->widget(0)) {
        m_stackedWidget->removeWidget(widget);
        delete widget;
    }
    m_qmlBackEnd = nullptr;

    resetView();
}

} // namespace QmlDesigner