#include "scene/OEScene.h"

#include <osg/Shape>
#include <osg/ShapeDrawable>
#include <osg/PositionAttitudeTransform>
#include <osg/Program>
#include <osg/LightSource>
#include <osgDB/ReadFile>
#include <osgEarthUtil/EarthManipulator>
#include <osgGA/StateSetManipulator>

#include <osgShadow/ShadowedScene>
#include <osgShadow/ViewDependentShadowMap>
#include <osgViewer/ViewerEventHandlers>

#include "config.h"
#include "common/SpdLogger.h"
#include "common/RecourceHelper.h"
#include "scene/ScopedTimer.h"
#include "viewer/OsgView.h"
#include "viewer/OsgCameraManipulator.h"
#include "scene/ScaleBarHandler.h"

const osgEarth::SpatialReference* g_srs_{ nullptr };

OEScene::OEScene() {
    osgDB::FilePathList& pathList = osgDB::Registry::instance()->getDataFilePathList();
    const std::string& basePath = RecourceHelper::Get().GetBasePath().toStdString();
    pathList.push_back(basePath + "/resources/earth/");
    pathList.push_back(basePath + "/resources/textures/");

    Init();
}

void OEScene::AttachView(osgViewer::View* view) {
    dyt_check(nullptr != earthRootNode_);
    skyDome_ = osgEarth::Util::SkyNode::create(earthMapNode_);
    if (!earthMapNode_) {
        LOG_WARN("eart map node is nullptr");
        return;
    }

    dyt_check(nullptr != earthManipulator_);
    view->setCameraManipulator(earthManipulator_);
    skyDome_->attach(view);
    skyDome_->getSunLight()->setAmbient(osg::Vec4(0.5,0.5,0.5,1.0));
    addChild(skyDome_);

    skyDome_->setDateTime(osgEarth::DateTime(2024, 12, 24, 3));

    view->setSceneData(this);
    curentView_ = view;
}

void OEScene::DetachView(osgViewer::View* view) {
    view->setSceneData(nullptr);
}

bool OEScene::AddToScene(osg::Node* node) const {
    dyt_check(nullptr != entityRoot_);
    return entityRoot_->addChild(node);
}

void OEScene::SetHomeViewpoint(const osgEarth::Viewpoint& viewpoint, double duration_s) {
	dyt_check(nullptr != earthManipulator_);
	earthManipulator_->setViewpoint(viewpoint, duration_s);
	//earthManipulator_->setHomeViewpoint(viewpoint, duration_s);
}

bool OEScene::TrackEntity(osg::Node* entity, bool track) const {
    dyt_check(nullptr != earthManipulator_);
    if (track) {
		 earthManipulator_->setTetherNode(entity, 5.0);
    } else {
        earthManipulator_->clearViewpoint();
	}
	return true;
}

OESceneUI* OEScene::GetOrCreateSceneUI() {
    if (sceneUI_) {
        LOG_INFO("scene ui is already attached");
        return sceneUI_.get();
    }

    sceneUI_ = new OESceneUI(this);
    return sceneUI_.get();
}

osg::Viewport* OEScene::GetViewport() const {
    dyt_check(nullptr != curentView_);

    return curentView_->getCamera()->getViewport();
}

const osgEarth::SpatialReference* OEScene::GetSrs() {
    dyt_check(nullptr != g_srs_);
    return g_srs_;
}

void OEScene::Init() {
    std::string earthPath = "D:/Project/DYT/Tool/TritonSample/TritonSample/triton.earth";
    // earthRootNode_ = osgDB::readNodeFile("triton.earth");
    earthRootNode_ = osgDB::readNodeFile(earthPath);
    dyt_check(nullptr != earthRootNode_);
    addChild(earthRootNode_);

    earthMapNode_ = osgEarth::MapNode::get(earthRootNode_);
    dyt_check(nullptr != earthMapNode_);
    LOG_INFO("earth map node get success: {}", earthMapNode_.valid());
    g_srs_ = earthMapNode_->getMapSRS();

    earthManipulator_ = new osgEarth::Util::EarthManipulator(); 
    earthManipulator_->getSettings()->setMinMaxPitch(-90.0, -10.0);
    

    entityRoot_ = new osg::Group;
    addChild(entityRoot_);
}