package net.sowgro.npehero;

import javafx.application.Application;
import javafx.geometry.Side;
import javafx.scene.Scene;
import javafx.scene.control.ScrollPane;
import javafx.scene.image.Image;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyCombination;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundImage;
import javafx.scene.layout.BackgroundPosition;
import javafx.scene.layout.BackgroundRepeat;
import javafx.scene.layout.BackgroundSize;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
import net.sowgro.npehero.main.Control;
import net.sowgro.npehero.gui.MainMenu;
import net.sowgro.npehero.main.LevelController;
import net.sowgro.npehero.main.SettingsController;
import net.sowgro.npehero.main.SoundController;

import java.net.URL;


public class Driver extends Application
{
    public static Stage primaryStage;
    static ScrollPane primaryPane = new ScrollPane();

    /*
     * starts javafx
     */
    public static void main(String[] args) 
    {
        launch(args);
    }
    
    /*
     * sets up game windows and starts controllers
     * (automatically called by javafx on start)
     */
    @Override
    public void start(Stage newPrimaryStage)
    {
        SettingsController.read();
        LevelController.readData();
        Control.readFromFile();

        primaryStage = newPrimaryStage;

        Scene primaryScene = new Scene(primaryPane, 800,600);

        primaryScene.getStylesheets().add(getClass().getResource("style.css").toExternalForm());

        primaryStage.setScene(primaryScene);
        primaryStage.setTitle("NPE Hero");

        primaryPane.getStyleClass().remove("scroll-pane");
        
        setMenu(new MainMenu());
        setMenuBackground();

        SoundController.playSong(SoundController.MENUSONG);

        primaryStage.addEventHandler(KeyEvent.KEY_PRESSED, event -> { //full screen stuff
            if (KeyCode.F11.equals(event.getCode())) {
                primaryStage.setFullScreen(!primaryStage.isFullScreen());
            }
        });
        primaryStage.setFullScreenExitKeyCombination(KeyCombination.NO_MATCH);
        primaryStage.setFullScreenExitHint("");
        primaryStage.show();
    }

    /**
     * Replaces/adds a new pane to the primaryPane
     * @param pane  the new pane
     */
    public static void setMenu(Pane pane)
    {
        primaryPane.setContent(pane);
        pane.prefWidthProperty().bind(primaryPane.widthProperty()); //makes pane fill the window
        pane.prefHeightProperty().bind(primaryPane.heightProperty());
        primaryPane.requestFocus(); //make the pane itself focused by the keyboard naviagtion so no button is highlighted by default
    }

    /**
     * @return the current pane in primaryPane
     */
    public static Pane getMenu(){
        return (Pane) primaryPane.getContent();
    }

    /**
     * replaces the background image with a new one
     * @param image   the url of the image to set
     */
    public static void setBackground(Image image) //replaces background with a new one
    {
        primaryPane.setBackground(new Background(
            new BackgroundImage(
                    image,
                    BackgroundRepeat.REPEAT, BackgroundRepeat.NO_REPEAT,
                    new BackgroundPosition(Side.LEFT, 0, true, Side.BOTTOM, 0, true),
                    new BackgroundSize(BackgroundSize.AUTO, BackgroundSize.AUTO, true, true, false, true)
            )));
    }

    public static void setMenuBackground()
    {
        setBackground(new Image(Driver.class.getResource("mountains.png").toExternalForm()));
    }

    public static URL getResource(String fileName) {
        return Driver.class.getResource(fileName);
    }
}