using System.Collections.Generic;
using System.Linq;
using Godot;

namespace Evolution.scripts; 

public partial class World : Node3D {
	
	public static World Instance { get; private set; }
	public int BoxCount { get; private set; }
	
	private readonly List<PackedScene> boxScenes = new();
	private double maxTimer = 0.01;
	private double timer;
	private double fpsTimer;
	private Label fpsLabel;
	private Label boxesLabel;
	private int frameCount;
	private readonly List<int> frameCounts = new();
	public override void _Ready() {
		Instance = this;
		
		boxScenes.Add(GD.Load<PackedScene>("res://scenes/GreenBox.tscn"));
		boxScenes.Add(GD.Load<PackedScene>("res://scenes/OrangeBox.tscn"));
		boxScenes.Add(GD.Load<PackedScene>("res://scenes/PurpleBox.tscn"));
		boxScenes.Add(GD.Load<PackedScene>("res://scenes/RedBox.tscn"));
		boxScenes.Add(GD.Load<PackedScene>("res://scenes/Box.tscn"));

		fpsLabel = GetNode<Label>("CanvasGroup/FPS");
		boxesLabel = GetNode<Label>("CanvasGroup/Boxes");
	}

	public override void _Process(double delta) {
		frameCount++;
		fpsTimer += delta;
		if (fpsTimer >= 1) {
			frameCounts.Add(frameCount);
			fpsLabel.Text = $"FPS: {(int)frameCounts.Average()}";
			frameCount = 0;
			fpsTimer = 0;
		}
		
		timer += delta;
		if (timer >= maxTimer) {
			CreateNewBox();
			timer = 0;
		}
	}

	private void CreateNewBox() {
		BoxCount++;
		Node newBox = boxScenes[GD.RandRange(0, boxScenes.Count - 1)].Instantiate();
		AddChild(newBox);
		boxesLabel.Text = $"Boxes: {BoxCount}";
	}

	public void DestroyBox() {
		BoxCount--;
		boxesLabel.Text = $"Boxes: {BoxCount}";
	}
}