package ph.sparcsy.summerydays.screen;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.World;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.HorizontalGroup;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.utils.Align;
import com.badlogic.gdx.utils.viewport.StretchViewport;

import box2dLight.PointLight;
import box2dLight.RayHandler;
import ph.sparcsy.summerydays.SummeryDays;
import ph.sparcsy.summerydays.asset.Asset;
import ph.sparcsy.summerydays.enitity.Parallax;

public class MenuScreen extends BaseScreen {

    private Parallax forestParallax;
    private Parallax cloudParallax;

    private float mover;

    private Stage stage;
    private World world;

    private RayHandler rayHandler;
    private PointLight pointLight;

    private Skin skin;

    MenuScreen(SummeryDays game) {
        super(game);
    }

    @Override
    public void show() {
        mover = -1f;

        skin = asset.get(Asset.Data.UISKIN);
        stage = new Stage(new StretchViewport(width, height, new OrthographicCamera(width, height)), batch);

        buildWorld();
        buildParallax();
        buildMenuOption();

        Gdx.input.setInputProcessor(stage);
        // Sound.play(asset, Asset.Sound.FANTASY_NIGHT, true);
    }

    private void buildWorld() {
        world = new World(new Vector2(0, 0), true);

        rayHandler = new RayHandler(world);
        rayHandler.setAmbientLight(Color.GOLDENROD);
        rayHandler.setAmbientLight(0.2f);

        pointLight = new PointLight(rayHandler, 200);
        pointLight.setColor(Color.ORANGE);
        pointLight.setDistance(4);
    }

    private Actor buildMenuButton() {
        float padY = height * 0.038f;
        float padX = width * 0.09f;

        Button btnExit = new Button(skin, "exit-style");
        btnExit.pad(padY, padX, padY, padX);

        Button btnPlay = new Button(skin, "play-style");
        btnPlay.pad(padY, padX, padY, padX);

        Button btnLoad = new Button(skin, "load-style");
        btnLoad.pad(padY, padX, padY, padX);

        Table menuOption = new Table();
        menuOption.add().padLeft(width * 0.3f).row();
        menuOption.add(btnPlay).padBottom(padY).left().row();
        menuOption.add(btnLoad).padBottom(padY).center().row();
        menuOption.add(btnExit).padBottom(padY).right().row();


        return menuOption;
    }

    private Actor buildTitle() {
        Label.LabelStyle titleStyle = new Label.LabelStyle();
        titleStyle.font = asset.get(Asset.Font.MENU);

         Label title = new Label("Summery" + '\n' + "Days", titleStyle);
        title.setAlignment(Align.center);
        title.debug();

        Table table = new Table();
        table.add(title);

        return table;
    }

    private void buildParallax() {
        Texture bgForest = asset.get(Asset.Image.BG_FOREST);
        Texture bgCloud = asset.get(Asset.Image.BG_CLOUD);

        forestParallax = new Parallax(bgForest)
                .setWidth(width / 3f)
                .setHeight(height / 3f)
                .repeat(3)
                .setSpeed(5);

        cloudParallax = new Parallax(bgCloud)
                .setWidth(width)
                .setHeight(height)
                .repeat(1)
                .setSpeed(15);
    }

    private void buildMenuOption() {
        HorizontalGroup menuGui = new HorizontalGroup();
        menuGui.addActor(buildMenuButton());
        menuGui.addActor(buildTitle());
        menuGui.setFillParent(true);
        menuGui.center();

        stage.addActor(menuGui);
    }

    @Override
    public void resize(int width, int height) {
        stage.getViewport().update(width, height, true);
    }

    @Override
    public void update(float delta) {
        if (mover <= 1) {
            mover += delta * 0.09f;
            pointLight.setPosition(mover, 1.1f);
        }

        cloudParallax.update(delta);
        forestParallax.update(delta);

        stage.act(delta);
        world.step(1f / 60f, 6, 2);
    }

    @Override
    public void render(float delta) {
        super.render(delta);

     /*   batch.begin();
        cloudParallax.draw(batch);
        forestParallax.draw(batch);
        batch.end();*/

        stage.draw();
        ///    rayHandler.updateAndRender();
    }

    @Override
    public void dispose() {
        super.dispose();
        rayHandler.dispose();
        stage.dispose();
        world.dispose();
    }

}