using Godot;
using Slimepire.Core;

namespace Slimepire.Gameplay.Nodules.Components;

[SceneTree]
public partial class GrowArea : Area2D
{
    private bool _mouseInsideClickArea;
    private bool _clickedInside;

    public override void _Ready()
    {
        MouseEntered += ClickAreaOnMouseEntered;
        MouseExited += ClickAreaOnMouseExited;
    }

    private void ClickAreaOnMouseEntered()
    {
        _mouseInsideClickArea = true;
    }

    private void ClickAreaOnMouseExited()
    {
        _mouseInsideClickArea = false;

        // ghost == null check probably unnecessary
        if (_clickedInside && !NoduleManager.Instance.Building)
        {
            NoduleManager.Instance.Building = true;
            _clickedInside = false;

            var ghost = Instantiator.Instantiate<BuildGhost>();
            ghost.Position = Position;

            // TODO: Make it better... EntityRoot oder vllt. NoduleRoot
            // Oder einfach den Baum auch als Baum in der Scene darstellen?
            GetTree().Root.AddChild(ghost);
        }
    }

    public override void _UnhandledInput(InputEvent @event)
    {
        using (@event)
        {
            if (
                @event is InputEventMouseButton { ButtonIndex: MouseButton.Left }
                && @event.IsPressed()
                && _mouseInsideClickArea
            )
            {
                _clickedInside = true;
                GetViewport().SetInputAsHandled();
            }
        }
    }
}