using UnityEditor;
using UnityEditor.IMGUI.Controls;
using UnityEngine;
using Ashwild.Harvesting;

namespace Ashwild.EditorTools
{
    [CustomEditor(typeof(ScatterExclusionVolume))]
    public class ScatterExclusionVolumeEditor : Editor
    {
        private readonly BoxBoundsHandle boxHandle = new BoxBoundsHandle();

        private void OnSceneGUI()
        {
            ScatterExclusionVolume vol = (ScatterExclusionVolume)target;

            // Poignées dans l'espace local du volume (gère la rotation).
            Matrix4x4 m = Matrix4x4.TRS(vol.transform.position, vol.transform.rotation, Vector3.one);
            using (new Handles.DrawingScope(m))
            {
                boxHandle.center = Vector3.zero;
                boxHandle.size = vol.size;

                EditorGUI.BeginChangeCheck();
                boxHandle.DrawHandle();
                if (EditorGUI.EndChangeCheck())
                {
                    Undo.RecordObject(vol, "Resize Exclusion Volume");
                    Undo.RecordObject(vol.transform, "Move Exclusion Volume");

                    // Le centre du handle bouge en local quand on tire une face : on le repasse en monde.
                    vol.transform.position = m.MultiplyPoint3x4(boxHandle.center);
                    vol.size = new Vector3(
                        Mathf.Max(0.1f, boxHandle.size.x),
                        Mathf.Max(0.1f, boxHandle.size.y),
                        Mathf.Max(0.1f, boxHandle.size.z));
                }
            }
        }
    }
}