import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.stage.DirectoryChooser;
import javafx.fxml.FXML;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.TilePane;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.event.ActionEvent;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.KeyCode;
import javafx.scene.input.MouseEvent;
import java.io.File;


public class Controller {
	 		private DirectoryChooser folderChooser = new DirectoryChooser();
    private Image pth = new Image(".");
    private Image previewPth = new Image(".");
    private ImageView imgView = new ImageView(pth);
    private String textAreaPth = "";
    private File directory;
    @FXML // fx:id="dir"
    private Label dir; // Value injected by FXMLLoader
    @FXML // fx:id="txtDirPath"
    private TextField txtDirPath; // Value injected by FXMLLoader
    @FXML // fx:id="clear"
    private Button clear; // Value injected by FXMLLoader
    @FXML // fx:id="tilePane"
    private TilePane tilePane; // Value injected by FXMLLoader

    // Handler for TextArea[fx:id="txtDirPath"] onKeyReleased
    @FXML
    void onEnter(KeyEvent event) {
        if (event.getCode().equals(KeyCode.ENTER)) {
            textAreaPth = txtDirPath.getText();
            System.out.println(textAreaPth);
            newDir();
        }
        else
             System.out.println("Not calling newDir...");
    }
    // Handler for Button[fx:id="dir"] onAction
    @FXML
    void setNewDir(MouseEvent event) {
        newDir();
    }
    @FXML
    void clearBttnClick(ActionEvent event) {
        tilePane.getChildren().clear();
        tilePane.getChildren().addAll(dir);
    }
    public void newDir() {
        Stage stage = new Stage();
        if (textAreaPth != "")
            directory = new File(textAreaPth);
        else
            directory = folderChooser.showDialog(stage);

        File[] fileList = directory.listFiles();
        int size = fileList.length;
        tilePane.getChildren().clear();
        txtDirPath.setText("" + directory);
			     for (int i=0; i<size; i++) {
												imgView =  new ImageView("file://" + fileList[i]);
            String title = "" + fileList[i];
												imgView.setFitWidth(300);
												imgView.setFitHeight(200);
					 						tilePane.getChildren().add(imgView);
												final ImageView imgViewPoped =  new ImageView("file://" + fileList[i]);
            // image click actions
            imgView.setOnMouseClicked(e -> {
                displayImg(imgViewPoped, title);
            });
								}
    }
    public void displayImg(ImageView imgViewPoped, String title) {
        imgViewPoped.setLayoutX(0);
        imgViewPoped.setLayoutY(0);
        Stage popOut = new Stage();
        Pane pane = new Pane();
        imgViewPoped.fitWidthProperty().bind(pane.widthProperty());
        imgViewPoped.fitHeightProperty().bind(pane.heightProperty());
        pane.getChildren().addAll(imgViewPoped);
        Scene scene = new Scene(pane, 1280, 900);
        popOut.setTitle(title);
        popOut.initStyle(StageStyle.UNDECORATED);
        popOut.setScene(scene);
        popOut.show();

        imgViewPoped.setOnMouseClicked(e -> {
            popOut.close();
        });
    }
    @FXML // This method is called by the FXMLLoader when initialization is complete
    void initialize() {
        assert clear != null : "fx:id=\"clear\" was not injected: check your FXML file 'window.fxml'.";
        assert dir != null : "fx:id=\"dir\" was not injected: check your FXML file 'window.fxml'.";
        assert tilePane != null : "fx:id=\"tilePane\" was not injected: check your FXML file 'window.fxml'.";
        assert txtDirPath != null : "fx:id=\"txtDirPath\" was not injected: check your FXML file 'window.fxml'.";
        // Initialize your logic here: all @FXML variables will have been injected
    }
}