using System.Collections.Generic;
using System.Linq;
using UnityEditor;
using UnityEngine;
using UniGLTF;


namespace VRM
{
    public static class VRMHumanoidNorimalizerMenu
    {
        const string MENU_KEY = VRMVersion.VRM_VERSION+"/freeze T-Pose";
        [MenuItem(MENU_KEY, true, 1)]
        private static bool ExportValidate()
        {
            var root=Selection.activeObject as GameObject;
            if (root == null)
            {
                return false;
            }

            var animator = root.GetComponent<Animator>();
            if (animator == null)
            {
                return false;
            }

            var avatar = animator.avatar;
            if (avatar == null)
            {
                return false;
            }

            if (!avatar.isValid) {
                return false;
            }

            if (!avatar.isHuman)
            {
                return false;
            }

            return true;
        }

        [MenuItem(MENU_KEY, false, 1)]
        private static void ExportFromMenu()
        {
            var go = Selection.activeObject as GameObject;
            Undo.RecordObjects(go.transform.Traverse().ToArray(), "before normalize");
            var map = new Dictionary<Transform, Transform>();
            var normalized = VRM.BoneNormalizer.Execute(go, map, true);
            VRMExportSettings.CopyVRMComponents(go, normalized, map);
            Undo.PerformUndo();
        }
    }
}