//
//  ContextOverlayInterface.cpp
//  interface/src/ui/overlays
//
//  Created by Zach Fox on 2017-07-14.
//  Copyright 2017 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

#include "ContextOverlayInterface.h"
#include "Application.h"
#include <EntityTreeRenderer.h>

ContextOverlayInterface::ContextOverlayInterface() {
    // "context_overlay" debug log category disabled by default.
    // Create your own "qtlogging.ini" file and set your "QT_LOGGING_CONF" environment variable
    // if you'd like to enable/disable certain categories.
    // More details: http://doc.qt.io/qt-5/qloggingcategory.html#configuring-categories
    QLoggingCategory::setFilterRules(QStringLiteral("hifi.context_overlay.debug=false"));

    _entityScriptingInterface = DependencyManager::get<EntityScriptingInterface>();
    _entityPropertyFlags += PROP_POSITION;
    _entityPropertyFlags += PROP_ROTATION;

    auto entityTreeRenderer = DependencyManager::get<EntityTreeRenderer>().data();
    connect(entityTreeRenderer, SIGNAL(mousePressOnEntity(const EntityItemID&, const PointerEvent&)), this, SLOT(createOrDestroyContextOverlay(const EntityItemID&, const PointerEvent&)));
}

void ContextOverlayInterface::createOrDestroyContextOverlay(const EntityItemID& entityItemID, const PointerEvent& event) {
    if (event.getButton() == PointerEvent::SecondaryButton) {
        qCDebug(context_overlay) << "Creating Context Overlay on top of entity with ID: " << entityItemID;
        setCurrentEntityWithContextOverlay(entityItemID);

        EntityItemProperties entityProperties = _entityScriptingInterface->getEntityProperties(entityItemID, _entityPropertyFlags);

        if (_contextOverlayID == UNKNOWN_OVERLAY_ID || !qApp->getOverlays().isAddedOverlay(_contextOverlayID)) {
            _contextOverlay = std::make_shared<Image3DOverlay>();
            _contextOverlay->setAlpha(1.0f);
            _contextOverlay->setPulseMin(0.75f);
            _contextOverlay->setPulseMax(1.0f);
            _contextOverlay->setColorPulse(1.0f);
            _contextOverlay->setIgnoreRayIntersection(false);
            _contextOverlay->setDrawInFront(true);
            _contextOverlay->setURL("http://i.imgur.com/gksZygp.png");
            _contextOverlay->setIsFacingAvatar(true);
            _contextOverlay->setDimensions(glm::vec2(0.2f, 0.2f) * glm::distance(entityProperties.getPosition(), qApp->getCamera().getPosition()));
            _contextOverlayID = qApp->getOverlays().addOverlay(_contextOverlay);
        }

        _contextOverlay->setPosition(entityProperties.getPosition());
        _contextOverlay->setRotation(entityProperties.getRotation());
        _contextOverlay->setVisible(true);
    } else if (_currentEntityWithContextOverlay == entityItemID) {
        destroyContextOverlay(entityItemID, event);
    }
}

void ContextOverlayInterface::destroyContextOverlay(const EntityItemID& entityItemID, const PointerEvent& event) {
    qCDebug(context_overlay) << "Destroying Context Overlay on top of entity with ID: " << entityItemID;
    setCurrentEntityWithContextOverlay(QUuid());

    qApp->getOverlays().deleteOverlay(_contextOverlayID);
    _contextOverlay = NULL;
    _contextOverlayID = UNKNOWN_OVERLAY_ID;
}

void ContextOverlayInterface::destroyContextOverlay(const EntityItemID& entityItemID) {
    ContextOverlayInterface::destroyContextOverlay(entityItemID, PointerEvent());
}

void ContextOverlayInterface::clickContextOverlay(const OverlayID& overlayID, const PointerEvent& event) {
    if (overlayID == _contextOverlayID && event.getButton() == PointerEvent::PrimaryButton) {
        qCDebug(context_overlay) << "Clicked Context Overlay. Entity ID:" << _currentEntityWithContextOverlay << "Overlay ID:" << overlayID;
        destroyContextOverlay(_currentEntityWithContextOverlay, PointerEvent());
    }
}