namespace Pong.Scripts.Managers.UI;

public partial class BaseMenu : VBoxContainer
{
	private SettingsManager _settingsManager;

	public override void _EnterTree()
	{
		_settingsManager = GetNode<SettingsManager>("/root/SettingsManager");
		_settingsManager.SettingsChanged += SettingsChanged;
		GetTree().Root.SizeChanged += AdaptUiToGameResolution;
		AdaptUiToGameResolution();
	}

	public override void _ExitTree()
	{
		GetTree().Root.SizeChanged -= AdaptUiToGameResolution;
		_settingsManager.SettingsChanged -= SettingsChanged;
	}

	/// <summary>
	/// method that fires when the settings get changed.
	/// </summary>
	private void SettingsChanged()
	{
		AdaptUiToGameResolution();
		DisplayServer.WindowSetVsyncMode((DisplayServer.VSyncMode)_settingsManager.SettingsData.VSync);
	}
	
	/// <summary>
	/// change the size of the UI container to the current resolution of the game.
	/// </summary>
	private void AdaptUiToGameResolution()
	{
		var scale = _settingsManager.SettingsData.Scale;
		Size = (Vector2)DisplayServer.WindowGetSize() / scale;
		Scale = new Vector2(scale, scale);
	}
}