using System.Diagnostics;
using System.Security;
using Godot;
using BITKit;

namespace BITFactory;
public partial class CourseElement : Node
{
	private static Node CurrentScene;
	private static string CurrentScenePath=string.Empty;
	[Export]
	public PackedScene CourseScene;

	[Export] private Label courseLabel;
	[Export] private Button entryButton;

	[Export]
	public string CourseName
	{
		get => _courseName;
		set
		{
			if (courseLabel is not null)
				courseLabel.Text = _courseName = value;
		}

	}

	private string _courseName;
	public override void _Ready()
	{
		//entryButton.Connect(nameof(Button.press))
		entryButton.Pressed += EntryCourse;
	}

	private void EntryCourse()
	{
		if (CourseScene is null)
		{
			return;
		}

		Stopwatch stopwatch = new();
		stopwatch.Start();
		if (CurrentScenePath == CourseScene?.ResourcePath)
		{
			BIT4Log.Log<CourseElement>($"已返回当前课程");
			UXService.Open(CurrentScene as Control);
			return;
		}
		if (CurrentScene is not null)
		{
			BIT4Log.Log<CourseElement>($"正在释放课程:\t{CurrentScene.Name}");
			CurrentScene.QueueFree();
			BIT4Log.Log<CourseElement>($"已释放当前课程:\t{CurrentScene.Name}");
		}
		CurrentScene = CourseScene!.Instantiate();
		CurrentScenePath = CourseScene.ResourcePath;
		GetTree().Root.AddChild(CurrentScene);
		UXService.Open(CurrentScene as Control);
		BIT4Log.Log<CourseElement>($"已加载新的课程:\t{CourseScene.ResourceName}");
		
		stopwatch.Stop();
		BIT4Log.Log<CourseElement>($"加载课程耗时:\t{stopwatch.ElapsedMilliseconds}ms");
	}
}