using UnityEngine;

namespace UDE_HAND_INTERACTION
{
    [RequireComponent(typeof(DollHand))]
    public class VirtualHand : MonoBehaviour
    {
        [SerializeField]
        private DollHand Doll;

        [SerializeField]
        //[UnityEngine.Serialization.FormerlySerializedAs("_handGrabPoint")]
        private HandGrabPose _handGrabPose;

        public Transform TipPos;
        protected virtual void Reset()
        {
            Doll = this.GetComponent<DollHand>();
            _handGrabPose = this.GetComponentInParent<HandGrabPose>();
        }

        protected virtual void OnValidate()
        {
            if (Doll == null)
            {
                return;
            }

            if (_handGrabPose == null)
            {
                HandGrabPose point = this.GetComponentInParent<HandGrabPose>();
                if (point != null)
                {
                    SetPose(point);
                }
            }
            else if (_handGrabPose != null)
            {
                SetPose(_handGrabPose);
            }
        }
        protected virtual void Start()
        {
            this.AssertField(Doll, nameof(Doll));
        }

        public void SetPose(HandGrabPose handGrabPose)
        {
            HandPose userPose = handGrabPose.HandPose;
            if (userPose == null)
            {
                return;
            }

            Doll.SetJointRotations(userPose.JointRotations);
            SetRootPose(handGrabPose.RelativePose, handGrabPose.RelativeTo);
        }

        public void SetPose(HandPose userPose, Pose rootPose)
        {
            Doll.SetJointRotations(userPose.JointRotations);
            Doll.SetRootPose(rootPose);
        }

        public void SetRootPose(Pose rootPose, Transform relativeTo)
        {
            Pose pose = rootPose;
            if (relativeTo != null)
            {
                pose = PoseManager.GlobalPoseScaled(relativeTo, rootPose);
            }
            Doll.SetRootPose(pose);
        }
    }
}