using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Rokid.UXR.Interaction;

namespace Stary.Evo.RKTools
{
    public abstract class GestureBase : MonoBehaviour
    {
        private GestureBean leftBean = null;
        private GestureBean rightBean = null;

        protected void OnEnable()
        {
            GesEventInput.OnTrackedSuccess += OnTrackedSuccess;
            GesEventInput.OnTrackedFailed += OnTrackedFailed;
            GesEventInput.OnRenderHand += OnRenderHand;
        }

        protected void OnDisable()
        {
            GesEventInput.OnTrackedSuccess -= OnTrackedSuccess;
            GesEventInput.OnTrackedFailed -= OnTrackedFailed;
            GesEventInput.OnRenderHand -= OnRenderHand;
        }

        protected void FixedUpdate()
        {
            if (leftBean != null)
            {
                GestureType type = GesEventInput.Instance.GetGestureType(HandType.LeftHand);
                Vector3 handForward = GetSkeletonPose(SkeletonIndexFlag.PALM, HandType.LeftHand).forward;
                GestureLeftSuccess(type, handForward);
            }
            else
            {
                GestureLeftFail();
            }

            if (rightBean != null)
            {
                GestureType type = GesEventInput.Instance.GetGestureType(HandType.RightHand);
                Vector3 handForward = GetSkeletonPose(SkeletonIndexFlag.PALM, HandType.RightHand).forward;
                GestureRightSuccess(type, handForward);
            }
            else
            {
                GestureRightFail();
            }
        }

        private void OnTrackedSuccess(HandType handType)
        {

        }

        private void OnTrackedFailed(HandType handType)
        {
            if (handType == HandType.None)
            {
                leftBean = null;
                rightBean = null;
            }

            if (handType == HandType.RightHand)
            {
                rightBean = null;
            }

            if (handType == HandType.LeftHand)
            {
                leftBean = null;
            }
        }

        private void OnRenderHand(HandType handType, GestureBean gestureBean)
        {
            if (handType == HandType.RightHand)
            {
                rightBean = gestureBean;
            }

            if (handType == HandType.LeftHand)
            {
                leftBean = gestureBean;
            }

            if (handType == HandType.None)
            {
                rightBean = null;
                leftBean = null;
            }
        }


        /// <summary>
        /// 获取骨架点位置
        /// </summary>
        /// <param name="index">骨架序号</param>
        /// <param name="hand">哪只手</param>
        /// <returns></returns>
        public Pose GetSkeletonPose(SkeletonIndexFlag index, HandType hand)
        {
            return GesEventInput.Instance.GetSkeletonPose(index, hand);
        }


        /// <summary>
        /// 获取手地朝向
        /// </summary>
        /// <param name="handType">哪只手</param>
        /// <returns></returns>
        public Vector3 GetHandForward(HandType handType)
        {
            Vector3 handForward = (GetSkeletonPose(SkeletonIndexFlag.MIDDLE_FINGER_MCP, handType).position -
                                   GetSkeletonPose(SkeletonIndexFlag.WRIST, handType).position);
            return handForward;
        }


        #region 需要被重写的方法

        public abstract void GestureLeftSuccess(GestureType gestureType, Vector3 handForward);
        public abstract void GestureRightSuccess(GestureType gestureType, Vector3 handForward);
        public abstract void GestureLeftFail();
        public abstract void GestureRightFail();

        #endregion

    }
}