using System.Numerics;
using DaggerFramework;
using DaggerFramework.Rendering;
using DaggerFramework.SceneGraph;
using DaggerFramework.UI;
using DaggerFramework.Utils;

public class UiLayer : Layer
{
    protected override void OnStart()
    {
        base.OnStart();

        GetResources();
        CreateUiElements();
    }

    protected override void OnUpdate(double dt)
    {
        base.OnUpdate(dt);
        // _textLabel.Text = $"{MathF.Round(1 / (float)dt)} FPS";
        _screenContainer.UpdateRect(Vector2.Zero, Scene.Renderer.WindowSize);
    }

    protected override void OnBeginDraw(Renderer renderer)
    {

    }

    protected override void OnDraw(Renderer renderer)
    {
        _screenContainer.Render(renderer);
    }

    protected override void OnEndDraw(Renderer renderer)
    {

    }

    private void CreateUiElements()
    {
        _screenContainer = new Container();
        _screenContainer.UpdateRect(Vector2.Zero, Scene.Renderer.WindowSize);

        var style = new PanelStyle()
        {
            BackgroundColor = new Color(0.25f, 0.25f, 0.25f, 1.0f)
        };

        _panel = new MarginPanel(style)
        {
            ExpandRatio = new Vector2(0.5f, 1.0f),
            RelativeMargin = Vector2.One * 0.01f
        };
        _screenContainer.AddChild(_panel);

        var exampleText = new TextLabel()
        {
            Font = _defaultFont,
            FontSize = 30,
            Text = "This Panel will occupy 50% of the screen.\nHow cool is that?"
        };

        _panel.AddChild(exampleText);

        // var verticalPanel = new VerticalPanel(new PanelStyle()
        // {
        //     BackgroundColor = Color.White,
        // });

        // verticalPanel.ExpandRatio = new Vector2(1f, 0.5f);

        // _panel.AddChild(verticalPanel);

        // verticalPanel.AddChild(new Panel(new PanelStyle() { BackgroundColor = Color.Red }));
        // verticalPanel.AddChild(new Panel(new PanelStyle() { BackgroundColor = Color.Green }));
        // verticalPanel.AddChild(new Panel(new PanelStyle() { BackgroundColor = Color.Blue }));
    }

    private void GetResources()
    {
        ResourceManager.TryGetResource("inter_regular", out _defaultFont);
    }


    private Font _defaultFont;
    private Container _screenContainer;
    private Panel _panel, _contentPanel;
    private TextLabel _textLabel;

    private Logger _logger = new(nameof(UiLayer));
}