using UnityEngine;

namespace Stary.Evo.RKTools
{
#if Evo_Rokid
    public abstract class GestureRokidBase : MonoBehaviour
    {
        private Rokid.UXR.Interaction.GestureBean leftBean = null;
        private Rokid.UXR.Interaction.GestureBean rightBean = null;
        protected void OnEnable()
        {
            Rokid.UXR.Interaction.GesEventInput.OnTrackedSuccess += OnTrackedSuccess;
            Rokid.UXR.Interaction.GesEventInput.OnTrackedFailed += OnTrackedFailed;
            Rokid.UXR.Interaction.GesEventInput.OnRenderHand += OnRenderHand;
        }

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

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

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

        }

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

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

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

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

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

            if (handType == Rokid.UXR.Interaction.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(Rokid.UXR.Interaction.SkeletonIndexFlag index, Rokid.UXR.Interaction.HandType hand)
        {
            return Rokid.UXR.Interaction.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(Rokid.UXR.Interaction.HandType handType)
        {
            Vector3 handForward =
 (GetSkeletonPose(Rokid.UXR.Interaction.SkeletonIndexFlag.MIDDLE_FINGER_MCP, handType).position -
                                   GetSkeletonPose(Rokid.UXR.Interaction.SkeletonIndexFlag.WRIST, handType).position);
            return handForward;
        }


        #region 需要被重写的方法

        /// <summary>
        /// 左手成功识别到手势不断执行操作
        /// </summary>
        /// <param name="gestureType">左手手势类型</param>
        /// <param name="handForward">左手掌心朝向</param>
        public abstract void GestureLeftSuccess(Rokid.UXR.Interaction.GestureType gestureType, Vector3 handForward);
        
        /// <summary>
        /// 右手成功识别到手势不断执行操作
        /// </summary>
        /// <param name="gestureType">右手手势类型</param>
        /// <param name="handForward">右手掌心朝向</param>
        public abstract void GestureRightSuccess(Rokid.UXR.Interaction.GestureType gestureType, Vector3 handForward);
        
        /// <summary>
        /// 左手未识别到手势执行操作
        /// </summary>
        public abstract void GestureLeftFail();
        
        /// <summary>
        /// 右手未识别到手势执行操作
        /// </summary>
        public abstract void GestureRightFail();

        #endregion

    }
#endif
}