#include "ManualLabelToolWidget.h"
#include <qdockwidget.h>
#include <qgslayertreeview.h>
#include <qgslayertreemodel.h>
#include <qgslayertreemapcanvasbridge.h>
#include <qlabel.h>
#include <qstatusbar.h>
#include <QMenuBar>
#include <QToolBar>
#include <qgsmapcanvas.h>
#include <qgsrasterlayer.h>
#include <qgsmaptoolpan.h>
#include <qgsunittypes.h>
#include <QString>
#include <qgis.h>
#include <QgsMapSettings.h>
#include <QFile>
#include <QFileDialog>
#include <QDialog>
#include <QApplication>
#include <QScreen>
#include <QString>
#include <qfileinfo.h>
#include <qdir.h>
#include <qgsmaplayer.h>
#include <qgsproject.h>
#include "WidgetSettingClass.h"
#include "LAMPDataManagerDialog.h"
#include <qgsproviderregistry.h>
#include <qgsapplication.h>
//#include <qgslayertreeview.h>
#include <qgslayertree.h>
#include <qgslayerpropertiesdialog.h>
#include "QBatchStaticEchoDialog.h"
#include "QImageCursorWidget.h"
#include <QToolButton.h>
#include <QgsMapToolZoom.h>
#include <QgsMapToolIdentify.h>
#include "CustomCursorTool.h"
#include "qgslayerpropertiesdialog.h"
#include "windLayerTreeViewMenuProvider.h"
//QgsUnitTypes


ManualLabelToolWidget::ManualLabelToolWidget(QWidget* parent)
	: QMainWindow(parent)
{
	this->init_UI();

}

ManualLabelToolWidget::~ManualLabelToolWidget()
{
}

void ManualLabelToolWidget::init_UI()
{
	// 初始大小
	{
		this->setWindowTitle(tr(u8"微波风能分析软件"));
		// 获取主屏幕的可用区域（不包含任务栏）
		QRect availableGeometry = QApplication::primaryScreen()->availableGeometry();

		// 计算期望的窗口大小，例如屏幕可用区域的80%
		int width = availableGeometry.width() * 0.8;
		int height = availableGeometry.height() * 0.8;

		// 调整窗口大小
		resize(width, height);

		// 可选：将窗口移动到屏幕中央
		move(availableGeometry.center() - rect().center());


	}

	{
		datamanagerDialog = new LampDataManager(this);
		onshowDatamanagerActionTriggered();
	}

	//地图控制
	{
		// 1. inti map canvas
		this->map_canvas = new QgsMapCanvas(this);
		this->setCentralWidget((this->map_canvas));

		// 2. map tool pan
		this->map_tool_pan = new  QgsMapToolPan(this->map_canvas);
		this->map_canvas->setMapTool(this->map_tool_pan);
		// 关键缓存与渲染配置
		map_canvas->setCachingEnabled(true); // 启用缓存，这是实现分块加载效果的关键[citation:6][citation:8]
		map_canvas->setParallelRenderingEnabled(true); // 启用并行渲染以提高性能[citation:6]
		// 3. map layer manager
		this->map_layerTreeView = new  QgsLayerTreeView(this);
		// 4. create map model
		this->map_layerModel = new  QgsLayerTreeModel(QgsProject::instance()->layerTreeRoot(), this);
		this->map_layerModel->setFlag(QgsLayerTreeModel::AllowNodeRename);     // 允许重命名
		this->map_layerModel->setFlag(QgsLayerTreeModel::AllowNodeReorder);    // 允许调整顺序
		this->map_layerModel->setFlag(QgsLayerTreeModel::AllowNodeChangeVisibility); // 允许改变可见性
		this->map_layerModel->setFlag(QgsLayerTreeModel::ShowLegendAsTree);   // 以树状图显示图例
		this->map_layerModel->setAutoCollapseLegendNodes(10); // 自动折叠过多图例项

		this->map_layerTreeView->setModel(this->map_layerModel);
		this->map_layer_Bridge = new QgsLayerTreeMapCanvasBridge(QgsProject::instance()->layerTreeRoot(), this->map_canvas, this);
		this->layerTreeDock = new QDockWidget(tr(u8"图层管理器"), this);
		this->layerTreeDock->setWidget(this->map_layerTreeView);
		layerTreeDock->setWidget(this->map_layerTreeView);
		layerTreeDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
		this->addDockWidget(Qt::LeftDockWidgetArea, this->layerTreeDock);

		windLayerTreeViewMenuProvider* mLayerTreeViewMenuProvider = new windLayerTreeViewMenuProvider(map_layerTreeView, map_canvas, this);

		this->map_layerTreeView->setMenuProvider(mLayerTreeViewMenuProvider);


	}

	// 状态工具栏
	{
		appStatusBar = this->statusBar(); // 获取或创建状态栏

		scaleLabel = new QLabel(tr(u8"比例尺："));
		CoordinaryTextLabel = new QLabel(tr(u8"坐标系："));
		PointXYLabel = new QLabel(tr(u8"坐标："));
		UnitLabel = new QLabel(tr(u8"单位："));
		appStatusBar->addPermanentWidget(PointXYLabel); // 
		appStatusBar->addPermanentWidget(scaleLabel); // 
		appStatusBar->addPermanentWidget(UnitLabel); // 
		appStatusBar->addPermanentWidget(CoordinaryTextLabel); // 

		// 连接比例尺变化信号
		connect(map_canvas, SIGNAL(scaleChanged(double)), this, SLOT(updateScaleLabel(double)));
		connect(map_canvas, SIGNAL(xyCoordinates(const QgsPointXY&)), this, SLOT(updateCoordinateLabel(const QgsPointXY&)));
		connect(map_canvas, SIGNAL(extentsChanged()), this, SLOT(onMapExtentsChanged()));


	}

	// 菜单栏
	{
		menubar = this->menuBar();

		// 在菜单栏上添加"文件"和"编辑"菜单
		fileMenu = menubar->addMenu(tr(u8"文件"));


		// 向"文件"菜单中添加菜单项（QAction）
		newAction = fileMenu->addAction(tr(u8"新建"));
		fileMenu->addSeparator(); // 添加分割线[1,5](@ref)
		openMenu = fileMenu->addMenu(tr(u8"打开"));

		openRasterFolderAction = openMenu->addAction(tr(u8"打开影像文件夹"));
		openRasterAction = openMenu->addAction(tr(u8"打开影像"));
		openSLCRasterAction = openMenu->addAction(tr(u8"SLC影像"));
		openLampWindDataAction = openMenu->addAction(tr(u8"风场数据"));

		// 事件绑定
		QObject::connect(this->openRasterAction, SIGNAL(triggered()), this, SLOT(openRaster()));
		QObject::connect(this->openLampWindDataAction, SIGNAL(triggered()), this->datamanagerDialog, SLOT(openLampWindDataFile()));



		editMenu = menubar->addMenu(tr(u8"编辑"));
		SARWindInversionMenu = menubar->addMenu(tr(u8"SAR风场反演"));
		SARImageImportAction = SARWindInversionMenu->addAction(tr(u8"SAR数据导入"));
		SARInversionAtion = SARWindInversionMenu->addAction(tr(u8"SAR风场分析工具"));
		SARInversionResulutShowAtion = SARWindInversionMenu->addAction(tr(u8"风场数据结果展示"));

		//SARWindAysysMenu = SARWindInversionMenu->addMenu(tr(u8"风场分析"));
		//SARImageAysysAction = SARWindAysysMenu->addAction(tr(u8"目标时间序列分析"));
		QObject::connect(SARInversionAtion, SIGNAL(triggered()), this, SLOT(onshowSARInversionAtionTriggered()));

	}

	// 图像工具
	{
		datatoolbar = new QToolBar(tr(u8"工具"));
		showDatamanagerAction = datatoolbar->addAction(tr(u8"数据管理"));


		mapToolActionGroup = new QActionGroup(this);
		ZoomInToolbtn = new QAction(tr(u8"放大"));
		ZoomInToolbtn->setCheckable(true);
		mapToolActionGroup->addAction(ZoomInToolbtn);
		ZoomOutToolbtn = new QAction(tr(u8"缩小"));
		ZoomOutToolbtn->setCheckable(true);
		mapToolActionGroup->addAction(ZoomOutToolbtn);
		MapPanToolbtn = new QAction(tr(u8"平移"));
		MapPanToolbtn->setCheckable(true);
		MapPanToolbtn->setChecked(true);
		mapToolActionGroup->addAction(MapPanToolbtn);
		IdentifyToolbtn = new QAction(tr(u8"识别"));
		IdentifyToolbtn->setCheckable(true);
		mapToolActionGroup->addAction(IdentifyToolbtn);
		cursorAction = new QAction(tr(u8"游标"));
		cursorAction->setCheckable(true);
		mapToolActionGroup->addAction(cursorAction);

		datatoolbar->addAction(ZoomInToolbtn);
		datatoolbar->addAction(ZoomOutToolbtn);
		datatoolbar->addAction(MapPanToolbtn);
		datatoolbar->addAction(cursorAction);


		m_mapToolPan = new QgsMapToolPan(this->map_canvas);
		m_mapToolZoomIn = new QgsMapToolZoom(this->map_canvas, false);
		m_mapToolZoomOut = new QgsMapToolZoom(this->map_canvas, true);
		m_mapIdentifyToolPan = new QgsMapToolIdentify(this->map_canvas);
		m_CustomCursorTool = new CustomCursorTool(this->map_canvas);
		ZoomInToolbtn->setText(u8"放大");
		ZoomOutToolbtn->setText(u8"缩小");
		MapPanToolbtn->setText(u8"平移");
		IdentifyToolbtn->setText(u8"识别");
		connect(mapToolActionGroup, &QActionGroup::triggered, this, &ManualLabelToolWidget::onMapToolActionTriggered);

		//QObject::connect(cursorAction, SIGNAL(triggered()), this, SLOT(onCursorImageToolTriggered()));
		QObject::connect(showDatamanagerAction, SIGNAL(triggered()), this, SLOT(onshowDatamanagerActionTriggered()));


		this->addToolBar(Qt::TopToolBarArea, datatoolbar);
	}


	// AI标注工具栏
	{
		AiLabelToolBar = new QToolBar(tr(u8"AI标注工具栏"), this);
		this->addToolBar(Qt::LeftToolBarArea, AiLabelToolBar);
	}


	// 检查插件
	{
		QString qgisPrefixPath = WidgetSettingClass::instance().getExeDirectionApplicationPath();
		// 3. 显式设置插件目录，确保QGIS能找到动态提供者
		QString pluginPath = qgisPrefixPath + "/plugins";
		QgsApplication::setPluginPath(pluginPath);

		// 4. 设置QGIS的共享数据目录（包含proj.db等）
		QString pkgDataPath = qgisPrefixPath + "/share/qgis";
		QgsApplication::setPkgDataPath(pkgDataPath);
		QgsApplication::initQgis();

		QStringList providers = QgsProviderRegistry::instance()->providerList();
		qDebug() << u8"已注册的提供者:" << providers;

		// 检查 "mesh_memory" 或相关的 "mdal" 提供者是否存在
		if (providers.contains("mesh_memory")) {
			qDebug() << u8"'mesh_memory' 提供者可用。";
		}
		else {
			qDebug() << u8"警告：未找到相关的网格数据提供者。";
		}
		if (providers.contains("mdal")) {
			qDebug() << u8"'mdal' 提供者可用，它可能包含在 'mdal' 中。";
		}
		else {
			qDebug() << u8"警告：未找到相关的网格数据提供者。";
		}
	}
}

void ManualLabelToolWidget::open()
{

}


void ManualLabelToolWidget::openRaster()
{


	QString lastFileDialogPath = WidgetSettingClass::instance().getLastFileDialogPath();
	if (lastFileDialogPath.isEmpty()) {
		lastFileDialogPath = ".";
	}
	// 打开影像
	// 2. 选择多个文件
	QString lampwindPath = QFileDialog::getOpenFileName(
		this,
		tr(u8"请选择影像文件"),
		lastFileDialogPath,
		tr(LAMPWINDDATAFILEFILTER)
	);

	QString filename = QFileInfo(lampwindPath).fileName();

	QgsRasterLayer* rasterLayer = new QgsRasterLayer(lampwindPath, filename);
	if (!rasterLayer->isValid()) {
		qDebug() << "Failed to load raster layer!";
		// 错误处理
		return;
	}

	this->AddLayers(rasterLayer);

}

void ManualLabelToolWidget::updateCoordinateLabel(const QgsPointXY& point)
{
	QString coordText = QString(tr(u8"坐标：X:%1 Y:%2")).arg(QString::number(point.x(), 'f', 2)).arg(QString::number(point.y(), 'f', 2));
	PointXYLabel->setText(coordText);
}

void ManualLabelToolWidget::onMapExtentsChanged()
{
	QgsRectangle currentExtent = map_canvas->extent();

	//// 现在你可以使用这个范围信息了，例如：
	//// 1. 打印范围坐标
	//qDebug() << "新范围 - Xmin:" << currentExtent.xMinimum()
	//    << "Ymin:" << currentExtent.yMinimum()
	//    << "Xmax:" << currentExtent.xMaximum()
	//    << "Ymax:" << currentExtent.yMaximum();
}


void ManualLabelToolWidget::AddLayers(QgsMapLayer* layer)
{
	if (!layer || !layer->isValid()) {
		qDebug() << "无效图层，无法添加！";
		return;
	}

	if (QgsProject::instance()->mapLayers().size() == 0) {
		// 检查图层是否有效且拥有定义的坐标系
		if (layer && layer->isValid() && layer->crs().isValid()) {
			// 将地图画布的目标坐标系设置为与图层一致
			map_canvas->mapSettings().setDestinationCrs(layer->crs());
			// 可选：将地图范围缩放至该图层的全范围，提供更好的初始视图
			map_canvas->setExtent(layer->extent());
			// 刷新画布，使更改生效
			map_canvas->refresh();
			qDebug() << "图层数量为1，已同步画布坐标系至：" << layer->crs().description();
		}
	}

	QgsProject::instance()->addMapLayer(layer);

}

void ManualLabelToolWidget::updateScaleLabel(double scale)
{
	QString scaleText = QString(tr(u8"比例尺：1:%1")).arg(QString::number(scale, 'f', 0));
	scaleLabel->setText(scaleText);

	Qgis::DistanceUnit unit = map_canvas->mapUnits();
	QString unitString;
	if (unit == Qgis::DistanceUnit::Meters) {
		unitString = tr(u8"米");
	}
	else if (unit == Qgis::DistanceUnit::Degrees) {
		unitString = tr(u8"度");
	}
	else if (unit == Qgis::DistanceUnit::Feet) {
		unitString = tr(u8"英尺");
	}
	else {
		unitString = tr(u8"未知");
	}
	UnitLabel->setText(QString(tr(u8"单位：%1")).arg(unitString));

	QgsCoordinateReferenceSystem currentCrs = map_canvas->mapSettings().destinationCrs();

	QString description = currentCrs.description();
	QString authid = currentCrs.authid();

	if (description == "") {
		CoordinaryTextLabel->setText(QString(tr(u8"坐标系：未知")));
	}
	else {
		CoordinaryTextLabel->setText(QString(tr(u8"坐标系：%1")).arg(description));
	}

}

void ManualLabelToolWidget::onshowDatamanagerActionTriggered()
{
	if (nullptr == datamanagerDialog) {
		datamanagerDialog = new LampDataManager(this);
	}
	else {}

	QRect parentGeometry = this->geometry();
	QSize dialogSize = datamanagerDialog->size();
	// 计算居中位置
	int x = parentGeometry.x() + (parentGeometry.width() - dialogSize.width()) / 2;
	int y = parentGeometry.y() + (parentGeometry.height() - dialogSize.height()) / 2;

	// 设置对话框位置
	datamanagerDialog->move(x, y);
	datamanagerDialog->show();
	datamanagerDialog->raise();    // 确保对话框在最前面
	datamanagerDialog->activateWindow(); // 激活对话框获取焦点
}

void ManualLabelToolWidget::setupLayerTreeContextMenu()
{
	// 启用图层树视图的默认上下文菜单
	this->map_layerTreeView->setMenuProvider(this->map_layerTreeView->menuProvider());

	// 或者自定义菜单
	this->map_layerTreeView->setContextMenuPolicy(Qt::CustomContextMenu);
	connect(this->map_layerTreeView, &QgsLayerTreeView::customContextMenuRequested,
		this, &ManualLabelToolWidget::onLayerTreeContextMenu);
}

void ManualLabelToolWidget::onLayerTreeContextMenu(const QPoint& pos)
{
	QModelIndex index = map_layerTreeView->indexAt(pos);
	if (!index.isValid())
		return;

	QgsLayerTreeNode* node = map_layerTreeView->layerTreeModel()->index2node(index);
	if (!node)
		return;

	QMenu* menu = new QMenu(this);

	if (QgsLayerTree::isLayer(node))
	{
		QgsMapLayer* layer = QgsLayerTree::toLayer(node)->layer();
		if (layer)
		{
			// 添加属性表菜单项
			QAction* attributeTableAction = menu->addAction(tr("打开属性表"));


			// 添加图层属性菜单项
			QAction* layerPropertiesAction = menu->addAction(tr("图层属性"));

		}
	}

	menu->exec(map_layerTreeView->mapToGlobal(pos));
	delete menu;
}

void ManualLabelToolWidget::onshowSARInversionAtionTriggered()
{
	QBatchStaticEchoDialog* d = new QBatchStaticEchoDialog(this);
	d->show();
}

void ManualLabelToolWidget::onMapToolActionTriggered(QAction* action)
{
	if (action == ZoomInToolbtn) {
		this->map_canvas->setMapTool(m_mapToolZoomIn);
	}
	else if (action == ZoomOutToolbtn) {
		this->map_canvas->setMapTool(m_mapToolZoomOut);
	}
	else if (action == MapPanToolbtn) {
		this->map_canvas->setMapTool(m_mapToolPan);
	}
	else if (action == IdentifyToolbtn) {
		this->map_canvas->setMapTool(m_mapIdentifyToolPan);
	}
	else if (action == cursorAction) {
		this->map_canvas->setMapTool(m_CustomCursorTool);
		if (!cursorInfoDialog)
		{
			cursorInfoDialog = new QImageCursorWidget(this); // 游标显示窗口
		}
		QObject::connect(m_CustomCursorTool, &CustomCursorTool::identifyResultChange, cursorInfoDialog, &QImageCursorWidget::showCursor, Qt::ConnectionType::AutoConnection);
		cursorInfoDialog->show();
		map_canvas->setCursor(Qt::CrossCursor);
	}
	else {
		map_canvas->setCursor(Qt::CursorShape::ArrowCursor);
	}
}