using System;
using Godot;

namespace GodotspaceShooter.Scripts;
public partial class Ui : Node2D
{
	[Export] private RichTextLabel rtlAsteroids;
	[Export] private RichTextLabel rtlLevel;
	[Export] private RichTextLabel rtlLifes;
	[Export] private RichTextLabel rtlNextLevel;
	[Export] private RichTextLabel rtlPoints;
	[Export] private VBoxContainer vBoxGameOver;
	[Export] private Label lblGameOver;
	[Export] private Button buttonRestart;
	[Export] private Label lblReachedPoints;
	[Export] private ProgressBar healthBar;
	[Export] private VBoxContainer vBoxPause;
	[Export] private Button buttonResume;
	[Export] private Button buttonPauseRestart;
	
	public static Ui Instance { get; private set; }

	public override void _Ready() {
		Instance = this;
		if (GameManager.Instance is null) 
			GD.PrintErr("No GameManager found!");
		else {
			GameManager.Instance.RefreshUi += RefreshUi;
			lblGameOver.Visible = GameManager.Instance.GameOver;
			buttonRestart.Visible = GameManager.Instance.GameOver;
			lblReachedPoints.Visible = GameManager.Instance.GameOver;
			buttonRestart.Pressed += ButtonRestartOnPressed;
			buttonResume.Pressed += ButtonResumeOnPressed;
			buttonPauseRestart.Pressed += ButtonPauseRestartOnPressed;
			RefreshUi(this, EventArgs.Empty);
		}
	}


	private void RefreshUi(object sender, EventArgs e) {
		rtlLifes.Text = $"Lives: {GameManager.Instance.Lives}";
		rtlAsteroids.Text = $"Asteroids: {GameManager.Instance.AsteroidNumber} / {GameManager.Instance.AsteroidMaxNumber}";
		rtlPoints.Text = $"Points: {GameManager.Instance.Points}";
		rtlNextLevel.Text = $"Next Level at: {GameManager.Instance.NextLevelPoints}";
		rtlLevel.Text = $"Actual Level: {GameManager.Instance.Level}";
		healthBar.MaxValue = GameManager.Instance.MaxLives;
		healthBar.Value = GameManager.Instance.Lives;

		if (GameManager.Instance.GameOver) {
			lblReachedPoints.Text = $"You have reached level {GameManager.Instance.Level} and {GameManager.Instance.Points} points!";
			vBoxGameOver.Visible = true;
		}

		// vBoxGameOver.Visible = GameManager.Instance.GameOver;
		vBoxPause.Visible = GameManager.Instance.GamePaused;
	}

	private void ButtonRestartOnPressed() => GetTree().ReloadCurrentScene();
	private void ButtonResumeOnPressed() => GameManager.Instance.GamePaused = false;
	private void ButtonPauseRestartOnPressed() {
		GameManager.Instance.GamePaused = false;
		GetTree().ReloadCurrentScene();
	}

	public void ShowMessage(string message) => GD.Print(message);
}