#include "..\Header\MainWindow.h"
#include "..\Header\OpenGlViewer.h"
#include "..\Header\MshFile.h"
#include "..\Header\defines.h"
#include <QKeyEvent>
#include <QMessageBox>
#include <QFileDialog>


/////////////////////////////////////////////////////////////////////////
// constructor/destructor

MainWindow::MainWindow(QWidget *parent)
	: QMainWindow(parent)
	, ui (new Ui::MainWindowClass)
{
	setupWindow();
}

MainWindow::~MainWindow()
{
	delete ui;
}


/////////////////////////////////////////////////////////////////////////
// private functions

void MainWindow::setupWindow()
{
	ui->setupUi(this);

	this->setWindowTitle(WINDOW_NAME);
	this->setWindowIcon(QIcon(":/MainWindow/icon.ico"));
	this->resize(WINDOW_WIDTH, WINDOW_HEIGHT);

	this->setCentralWidget(new OpenGlViewer(this));

	ui->mainToolBar->addAction("Open File", this, &MainWindow::openFile);
	ui->mainToolBar->addAction("File Info", this, &MainWindow::aboutFile);

	ui->statusBar->showMessage(DEFAULT_STATUS_MESSAGE);
}

void MainWindow::import(const char * path)
{
	try
	{
		MshFile file(path);

		// Models
		std::vector<Model*>* tmp_models = file.getModels();

		// Textures
		std::vector<std::string> tmp_texNames = file.getTextureNames();
		std::vector<QImage*>* tmp_textures = new std::vector<QImage*>;

		std::string tmp_path = path;

		while (tmp_path.back() != '/' && tmp_path.back() != '\\')
			tmp_path.pop_back();

		for (auto& it : tmp_texNames)
		{
			QImage* tmp_image = new QImage;

			std::string test = tmp_path + it;
			QString test2 = "D:\\workspaces\\Visual Studio 2015\\Projects\\OpenGL\\Release\\Msh\\texture32R.tga";

			if (tmp_image->load(test2))
				tmp_textures->push_back(tmp_image);
			else
			{
				delete tmp_image;
				tmp_image = new QImage(1, 1, QImage::Format_RGB32);
				tmp_image->fill(Qt::red);
				tmp_textures->push_back(tmp_image);
			}
		}

		// add a solid default color at the end (maybe there is an invalid index later)
		QImage* tmp_image = new QImage(1, 1, QImage::Format_RGB16);
		tmp_image->fill(Qt::red);
		tmp_textures->push_back(tmp_image);

		tmp_texNames.clear();

		// Bounding Box
		BoundingBox tmp_bbox = file.getBoundingBox();

		OpenGlViewer* tmp_viewer = dynamic_cast<OpenGlViewer*>(centralWidget());

		tmp_viewer->setData(tmp_models, tmp_textures, tmp_bbox);

	}
	catch (std::invalid_argument e)
	{
		//TODO:
		QMessageBox msg(this);
		msg.addButton(QMessageBox::Ok);
		msg.setText(QString::fromStdString(e.what()));
		msg.setIcon(QMessageBox::Critical);
		msg.setWindowTitle("Open File Error");

		msg.exec();
	}
}


/////////////////////////////////////////////////////////////////////////
// private slots

void MainWindow::openFile()
{
	QString fileName = QFileDialog::getOpenFileName(this, "Open File", "../Release/Msh", "Mesh (*.msh)");

	import(fileName.toStdString().c_str());
}

void MainWindow::aboutFile()
{
	//TODO: Open Window with file information
	QMessageBox* dialog = new QMessageBox(QMessageBox::Information, WINDOW_NAME, "File Info", QMessageBox::StandardButton::Close, this, Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint);
	dialog->setDetailedText("This is the cool detailed text\n");
	dialog->exec();
}


/////////////////////////////////////////////////////////////////////////
// events

void MainWindow::keyPressEvent(QKeyEvent * keyEvent)
{
	switch (keyEvent->key())
	{
	case Qt::Key::Key_Escape:
		close();
		break;
	}

	QMainWindow::keyPressEvent(keyEvent);
}