using FOU.Scripts;
using FOU.Scripts.Elements;
using Godot;

public partial class Main : Node2D {
	[Export] public bool DebugMode = false;

	[Export] public int BrushSize = 5;
	[Export] public float TextureResolution = 0.5f;
	[Export] public int ChunksPerAxis = 2;
	[Export] public float RainAmount = 0;

	public static Main Instance;
	public Level Level;

	private TextureRect mLevelDrawer;
	private bool enableRain;
	private float rainAmount;

	public override void _Ready() {
		Level = new Level(this, (int)(GetViewportRect().Size.X * TextureResolution),
								 (int)(GetViewportRect().Size.Y * TextureResolution));
		Level.SetRainAmount(rainAmount);
		mLevelDrawer = GetNode<TextureRect>("CanvasLayer/LevelDrawer");

		Instance = this;
	}

	public override void _PhysicsProcess(double delta) {
		base._PhysicsProcess(delta);
		Level.Update();
	}

	public override void _Process(double delta) {
		mLevelDrawer.Texture?.Dispose();
		mLevelDrawer.Texture = ImageTexture.CreateFromImage(Level.DrawLevel());
	}

	public override void _UnhandledInput(InputEvent @event) {
		if (@event is InputEventMouseButton eventMouseButton) {

			if (eventMouseButton.IsPressed()) {
				Vector2 mouse = GetViewport().GetMousePosition();

				float mappedX = mouse.X / (GetViewportRect().Size.X / Level.Resolution.X);
				float mappedY = mouse.Y / (GetViewportRect().Size.Y / Level.Resolution.Y);

				Level.WritePixel<Dirt>((int)mappedX, (int)mappedY, BrushSize);
			}
		} else if (@event is InputEventKey keyEvent && keyEvent.Pressed) {
			if (keyEvent.Keycode == Key.F9)
				Level.StartBenchmark();
		}
		else base._UnhandledInput(@event);
	}
}