using System;
using System.Diagnostics;
using System.Threading.Tasks;
using Godot;

public partial class UIHandler : Control
{
	[Export] CodingWindow codingWindow;
	[Export] RobotList robotList;
	[Export] Camera3D mainCam;
	[Export] Map map;
	[Export] RichTextLabel FPS;
	[Export] RichTextLabel RAM;
	[Export] PanelContainer options;
	[Export] Control uiContent;
	[Export] PanelContainer menu;
	public override void _Ready()
	{

	}

	// Called every frame. 'delta' is the elapsed time since the previous frame.
	public override void _Process(double delta)
	{
		robotList.OnRobotJumpTo += (robot) =>
		{
			mainCam.Position = new Vector3(robot.Position.X, mainCam.Position.Y, robot.Position.Z + 3f);
			ShowCodingWindow(robot);
		};

		if (Input.IsActionJustPressed("map"))
		{
			map.Visible = !map.Visible;
			if (map.Visible)
			{
				map.ShowMap();
			}
		}

		if (Input.IsActionJustPressed("menu"))
		{
			HandleMenu();
		}

		DisplayStats();
	}

	public void HandleMenu()
	{
		bool shouldMenuOpen = true;
		foreach (PanelContainer element in uiContent.GetChildren())
		{
			if (element.Visible)
			{
				element.Visible = false;
				shouldMenuOpen = false;
			}
		}

		if (shouldMenuOpen)
		{
			menu.Visible = true;
		}
	}

	public void ChangeColor(Color color)
	{
		GameData.lightColor = color;
		LightHandler.RedrawLights(color);
	}

	public void ShowCodingWindow(Robot robot)
	{
		codingWindow.ShowWindow(robot);
	}

	public void DisplayStats()
	{
		FPS.Text = Engine.GetFramesPerSecond().ToString() + " FPS";
		double memory = Process.GetCurrentProcess().WorkingSet64 / (1024 * 1024);
		string memoryDisplay = memory > 1024 ? Math.Round(memory / 1024, 2).ToString() + " GB" : memory.ToString() + " MB";
		RAM.Text = memoryDisplay;
	}

	public void ShowOptions()
	{
		options.Visible = true;
	}

	public void ExitGame()
	{
		GetTree().ChangeSceneToFile("res://Scenes/MainMenu.tscn");
	}
}