/**
  * cemu_UI
  * 
  * Copyright 2017  <@Seil0>
  * 
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
  * (at your option) any later version.
  * 
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  * 
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  * MA 02110-1301, USA.
  * 
  */
 package application;
 	
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.net.URL;
 import java.nio.channels.Channels;
 import java.nio.channels.ReadableByteChannel;
 import java.util.Optional;
 import javafx.application.Application;
 import javafx.fxml.FXMLLoader;
 import javafx.stage.DirectoryChooser;
 import javafx.stage.Stage;
 import javafx.scene.Scene;
 import javafx.scene.control.Alert;
 import javafx.scene.control.ButtonType;
 import javafx.scene.control.Alert.AlertType;
 import javafx.scene.layout.AnchorPane;
 
 
 public class Main extends Application {
 	
 	Stage primaryStage;
 	private MainWindowController mainWindowController;
 	private String dirWin = System.getProperty("user.home") + "/Documents/cemu_UI";	//Windows: C:/Users/"User"/Documents/HomeFlix
 	private String dirLinux = System.getProperty("user.home") + "/cemu_UI";	//Linux: /home/"User"/HomeFlix
 	private String gamesDBdownloadURL = "https://github.com/Seil0/cemu_UI/raw/master/downloadContent/games.db";
 	private File directory;
 	private File configFile;
 	private File gamesDBFile;
 	@SuppressWarnings("unused")
 	private File localDB;
 	private File pictureCache;
 
 	
 	@Override
 	public void start(Stage primaryStage) {
 		this.primaryStage = primaryStage;
 		mainWindow();
 	}
 	
 	private void mainWindow(){
 		try {
 			FXMLLoader loader = new FXMLLoader(Main.class.getResource("MainWindow.fxml"));
 			AnchorPane pane = loader.load();
 			primaryStage.setResizable(false);
 			primaryStage.setTitle("cemu_UI");
 //			primaryStage.getIcons().add(new Image(Main.class.getResourceAsStream("/recources/Homeflix_Icon_64x64.png"))); //adds application icon
 
 			mainWindowController = loader.getController();	//Link of FXMLController and controller class
 			mainWindowController.setMain(this);	//call setMain
 			
			//get OS and the right paths
 			if(System.getProperty("os.name").equals("Linux")){
 				directory = new File(dirLinux);
 				configFile = new File(dirLinux + "/config.xml");
 				gamesDBFile = new File(dirLinux + "/games.db");
 				localDB = new File(dirLinux+"/localRoms.db");
 				pictureCache= new File(dirLinux+"/picture_cache");
 			}else{
 				directory = new File(dirWin);	
 				configFile = new File(dirWin + "/config.xml");
 				gamesDBFile = new File(dirWin + "/games.db");
 				localDB = new File(dirWin+"/localRoms.db");
 				pictureCache= new File(dirWin+"/picture_cache");
 			}
 			
 			//startup checks
 			System.out.println(directory.exists());
 			System.out.println(configFile.exists());
 			if(directory.exists() != true){
 				System.out.println("mkdir all");
 				directory.mkdir();
 				pictureCache.mkdir();
 			}
 			
 			if(configFile.exists() != true){
 				System.out.println("firststart");
 				firstStart();
 				mainWindowController.setColor("00a8cc");
 				mainWindowController.setxPosHelper(0);
 				mainWindowController.saveSettings();
 				Runtime.getRuntime().exec("java -jar cemu_UI.jar");	//start again (preventing Bugs)
 				System.exit(0);	//finishes itself
 			}
 			
 			if(pictureCache.exists() != true){
 				pictureCache.mkdir();
 			}
 			
 			if(gamesDBFile.exists() != true){
 				try {
 					System.out.print("downloading games.db... ");
 					URL website = new URL(gamesDBdownloadURL);
 					ReadableByteChannel rbc = Channels.newChannel(website.openStream());
 					FileOutputStream fos = new FileOutputStream(gamesDBFile);
 					fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
 					fos.close();
 					System.out.println("done!");
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 			}
 			
 			//loading settings and initialize UI
 			mainWindowController.loadSettings();
 			mainWindowController.dbController.main();
 			mainWindowController.addUIData();
 			mainWindowController.initActions();
 			mainWindowController.initUI();
 			
 			Scene scene = new Scene(pane);	//create new scene, append pane to scene
 			scene.getStylesheets().add(Main.class.getResource("MainWindows.css").toExternalForm());
 			primaryStage.setScene(scene);	//append scene to stage
 			primaryStage.show();	//show stage
 			} catch (IOException e) {
 				e.printStackTrace();
 			}
 	}
 	
 	private void firstStart(){
 		Alert alert = new Alert(AlertType.CONFIRMATION);	//new alert with file-chooser
 		alert.setTitle("cemu_UI");
 		alert.setHeaderText("cemu installation");
 		alert.setContentText("please select your cemu installation");
 
 		Optional<ButtonType> result = alert.showAndWait();
 		if (result.get() == ButtonType.OK){
 			DirectoryChooser directoryChooser = new DirectoryChooser();
             File selectedDirectory = directoryChooser.showDialog(primaryStage);
             mainWindowController.setCemuPath(selectedDirectory.getAbsolutePath());
             
 		} else {
 			mainWindowController.setCemuPath(null);
 		}
 		
 		Alert alert2 = new Alert(AlertType.CONFIRMATION);	//new alert with file-chooser
 		alert2.setTitle("cemu_UI");
 		alert2.setHeaderText("rom directory");
 		alert2.setContentText("please select your rom directory");
 
 		Optional<ButtonType> result2 = alert2.showAndWait();
 		if (result2.get() == ButtonType.OK){
 			DirectoryChooser directoryChooser = new DirectoryChooser();
             File selectedDirectory = directoryChooser.showDialog(primaryStage);
                 mainWindowController.setRomPath(selectedDirectory.getAbsolutePath());
             
 		} else {
 			mainWindowController.setRomPath(null);
 		}
 	}
 	
 	public static void main(String[] args) {
 		launch(args);
 	}
}