namespace Spine.Unity
{
    public static class SkeletonAnimationExt
    {
        /// <summary>
        /// 当前动作的时间
        /// </summary>
        /// <param name="animation"></param>
        /// <returns>单位: 秒</returns>
        public static float GetDuration(this SkeletonAnimation animation)
        {
            if (!animation.valid)
            {
                return 0;
            }
            else
            {
                TrackEntry entry = animation.state.GetCurrent(0);
                return entry?.Animation.Duration ?? 0;
            }
        }
        /// <summary>
        /// 当前动作的时间
        /// </summary>
        /// <param name="animation"></param>
        /// <returns>单位: 毫秒</returns>
        public static int GetDurationMS(this SkeletonAnimation animation)
        {
            var duration = GetDuration(animation);
            return UnityEngine.Mathf.CeilToInt(duration * 1000);
        }
        /// <summary>
        /// 指定动作的持续时间
        /// </summary>
        /// <param name="animation"></param>
        /// <param name="aniName">动作名字</param>
        /// <returns>单位: 秒</returns>
        public static float GetDuration(this SkeletonAnimation animation, string aniName)
        {
            var animationObject = animation.skeletonDataAsset.GetSkeletonData(false).FindAnimation(aniName);
            return animationObject.Duration;
        }
    }
}