using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace ChivaXR
{
    /// <summary>
    /// UnityAnimation 工具
    /// </summary>
    public class AnimationToolkit
    {
        /// <summary>
        /// 设置动画状态（Normalized）
        /// </summary>
        /// <param name="_animation"></param>
        /// <param name="_aniName"></param>
        /// <param name="_normalizedTime"></param>
        /// <param name="_speed"></param>
        public static void SetAnimationNormalizedToPose(Animation _animation, float _normalizedTime)
        {
            AnimationState _aniState = _animation[_animation.clip.name];
            _aniState.enabled = true;
            _aniState.weight = 1;
            _aniState.normalizedTime = _normalizedTime;
            _animation.Sample();
            _aniState.enabled = false;
        }
        /// <summary>
        /// 设置动画状态（Normalized）
        /// </summary>
        /// <param name="_animation"></param>
        /// <param name="_aniName"></param>
        /// <param name="_normalizedTime"></param>
        /// <param name="_speed"></param>
        public static void SetAnimationNormalizedToPose(Animation _animation, string _aniName, float _normalizedTime)
        {
            AnimationState _aniState = _animation[_aniName];
            _aniState.enabled = true;
            _aniState.weight = 1;
            _aniState.normalizedTime = _normalizedTime;
            _animation.Sample();
            _aniState.enabled = false;
        }

        /// <summary>
        /// 设置动画状态（Normalized）并播放
        /// </summary>
        /// <param name="_animation"></param>
        /// <param name="_aniName"></param>
        /// <param name="_normalizedTime"></param>
        /// <param name="_speed"></param>
        public static void SetAnimationNormalizedToPlay(Animation _animation, string _aniName, float _normalizedTime, float _speed = 1, Action finishedCallBack = null)
        {
            AnimationState _aniState = _animation[_aniName];
            _aniState.enabled = true;
            _aniState.speed = _speed;
            _aniState.weight = 1;
            _aniState.normalizedTime = _normalizedTime;
            _animation.Sample();
            _aniState.enabled = false;
            _animation.Play(_aniName);

            if (finishedCallBack != null)
            {
                //协程等待动画播放完毕时长，执行委托
                SetIEnumeratorActionCallBackByTime(finishedCallBack, (1 - _normalizedTime) * _aniState.length / _speed);
            }
        }

        /// <summary>
        /// 获取动画播放时长
        /// </summary>
        /// <param name="_animation"></param>
        /// <param name="_aniName"></param>
        /// <param name="_speed"></param>
        /// <returns></returns>
        public static float GetAnimationPlayTime(Animation _animation, string _aniName, float _speed = 1)
        {
            AnimationState _aniState = _animation[_aniName];
            return _aniState.length / _speed;
        }

        /// <summary>
        /// 播放动画
        /// </summary>
        /// <param name="_animation"></param>
        /// <param name="_aniName"></param>
        /// <param name="speed"></param>
        public static void PlayAnimationByClip(Animation _animation, string _aniName, float speed = 1, Action finishedCallBack = null)
        {
            _animation.clip = _animation[_aniName].clip;
            _animation[_aniName].speed = speed;
            _animation.Play(_aniName);

            if (finishedCallBack != null)
            {
                //协程等待动画播放完毕时长，执行委托
                SetIEnumeratorActionCallBackByTime(finishedCallBack, _animation[_aniName].length / speed);
            }
        }


        /// <summary>
        /// 协程等待时间执行委托
        /// </summary>
        /// <param name="callBack"></param>
        /// <param name="time"></param>
        public static void SetIEnumeratorActionCallBackByTime(Action callBack, float time)
        {
           AnimationCoroutine.Instance.StartCoroutine(UnityAcitionCallBackByTime(callBack, time));
        }

        static IEnumerator UnityAcitionCallBackByTime(Action callBack, float time)
        {
            yield return new WaitForSeconds(time);
            callBack?.Invoke();
        }
    }
}