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

namespace BF
{
    [System.Serializable]
    public struct CharacterSpineObjectInfo
    {
        public uint hashName;
        public UnityEngine.GameObject gameObject;
    }
    [ExecuteInEditMode]
    [DisallowMultipleComponent]
    public class CharacterSpineHelper : MonoBehaviour
    {
        public GameObject SpineObject;
        public List<CharacterSpineObjectInfo> ObjectList = new List<CharacterSpineObjectInfo>();
        public float PositionX { get; private set; }
		public float PositionY { get; private set; }
        public float PositionZ { get; private set; }
        private Spine.Unity.SkeletonGraphic skeletonGraphic;
        private Spine.AnimationState animationState;

        void Awake()
        {
            skeletonGraphic = SpineObject.GetComponent<Spine.Unity.SkeletonGraphic>();
            animationState = skeletonGraphic.AnimationState;
        }

        public void Reload()
        {
            animationState = skeletonGraphic.AnimationState;
        }

        public void PlayAnimation(string animName, bool loop, bool forceRefresh)
        {
#if UNITY_EDITOR
            float duration = GetAnimationDuration(animName);
            if(BFLog.LogAssert(duration > 0, this.gameObject.name + " not have " + animName))
            {
                return;
            }
#endif

            animationState.SetAnimation(0, animName, loop);
            if (forceRefresh)
            {
                skeletonGraphic.Update(0);
            }
        }

        public void SetAnimationSpeed(float timeScale)
        {
            skeletonGraphic.timeScale = timeScale;
        }

        public void SetLoop(bool isLoop)
        {
            skeletonGraphic.startingLoop = isLoop;
        }

        public GameObject GetSpineObject()
        {
            return SpineObject;
        }

        public Spine.Unity.SkeletonGraphic GetSkeletonGraphic()
        {
            return skeletonGraphic;
        }

        public int GetListCount()
        {
            return ObjectList.Count;
        }

        public GameObject GetGameObjectByIndex(int index)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                return ObjectList[index].gameObject;
            }
            else if (index < 0)
            {
                return this.gameObject;
            }
            return null;
        }

        public uint GetHashNameByIndex(int index)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                return ObjectList[index].hashName;
            }
            return 0;
        }

        public int GetInstanceID(int index)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                return ObjectList[index].gameObject.GetInstanceID();
            }
            return gameObject.GetInstanceID();
        }

        // Lua层可以使用PositionX，PositionY，PositionZ，减少直接传递localPosition的开销
        public void CacheLocalPosition(int index)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                var localPosition = ObjectList[index].gameObject.transform.localPosition;
                PositionX = localPosition.x;
                PositionY = localPosition.y;
                PositionZ = localPosition.z;
            }
            else if (index < 0)
            {
                PositionX = this.transform.localPosition.x;
                PositionY = this.transform.localPosition.y;
                PositionZ = this.transform.localPosition.z;
            }
        }

        public void SetLocalPosition(int index, float x, float y, float z)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                ObjectList[index].gameObject.transform.localPosition = new Vector3(x, y, z);
            }
            else if (index < 0)
            {
                this.transform.localPosition = new Vector3(x, y, z);
            }
        }
        // Lua层可以使用PositionX，PositionY，PositionZ，减少直接传递position的开销
        public void CachePosition(int index)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                var position = ObjectList[index].gameObject.transform.position;
                PositionX = position.x;
                PositionY = position.y;
                PositionZ = position.z;
            }
            else if (index < 0)
            {
                PositionX = this.transform.position.x;
                PositionY = this.transform.position.y;
                PositionZ = this.transform.position.z;
            }
        }

        public void CacheBonePosition(string name)
        {
            var skeleton = skeletonGraphic.Skeleton;
            var bone = skeleton.FindBone(name);
            if (bone != null)
            {
                Vector3 unityWorldPosition = skeletonGraphic.transform.TransformPoint(new Vector3(bone.WorldX, bone.WorldY, 0.0f));
                PositionX = unityWorldPosition.x;
                PositionY = unityWorldPosition.y;
                PositionZ = unityWorldPosition.z;
            }
            else
            {
                PositionX = 0.0f;
                PositionY = 0.0f;
                PositionZ = 0.0f;
            }
        }

        public void SetPosition(int index, float x, float y, float z)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                ObjectList[index].gameObject.transform.position = new Vector3(x, y, z);
            }
            else if (index < 0)
            {
                this.transform.position = new Vector3(x, y, z);
            }
        }

        public void SetLocalEulerAngles(int index, float x, float y, float z)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                ObjectList[index].gameObject.transform.localEulerAngles = new Vector3(x, y, z);
            }
            else if (index < 0)
            {
                this.transform.localEulerAngles = new Vector3(x, y, z);
            }
        }

        public void setEulerAngles(int index, float x, float y, float z)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                ObjectList[index].gameObject.transform.eulerAngles = new Vector3(x, y, z);
            }
            else if (index < 0)
            {
                this.transform.eulerAngles = new Vector3(x, y, z);
            }
        }

        public void SetLocalScale(int index, float x, float y, float z)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                ObjectList[index].gameObject.transform.localScale = new Vector3(x, y, z);
            }
            else if (index < 0)
            {
                this.transform.localScale = new Vector3(x, y, z);
            }
        }

        public void SetLocalScaleX(int index, float x)
        {
            if (index >= 0 && index < ObjectList.Count)
            {
                var transform = ObjectList[index].gameObject.transform;
                transform.localScale = new Vector3(x, transform.localScale.y, transform.localScale.z);
            }
            else if (index < 0)
            {
                transform.localScale = new Vector3(x, transform.localScale.y, transform.localScale.z);
            }
        }

        public void SetMainSpineLocalPosition(float x, float y, float z)
        {
            SpineObject.transform.localPosition = new Vector3(x, y, z);
        }

        public float GetAnimationDuration(string name)
        {
            Spine.Animation animation = skeletonGraphic.skeletonDataAsset.GetAnimationStateData().SkeletonData.FindAnimation(name);
            if (animation == null){
                return 0.0f;
            }
            return animation.Duration;
        }

        public float GetAnimationKeyFrameTime(string name)
        {
            float time = 0.0f;
            var animation = skeletonGraphic.skeletonDataAsset.GetAnimationStateData().SkeletonData.FindAnimation(name);
            foreach (var timeline in animation.Timelines)
            {
                var eventTimeline = timeline as Spine.EventTimeline;
                if (eventTimeline != null && eventTimeline.Events.Length > 0)
                {
                    time = eventTimeline.Events[0].Time;
                }
            }
            return time;
        }

        public void SetDefaultMix(float mixDuration)
        {
            skeletonGraphic.skeletonDataAsset.GetAnimationStateData().DefaultMix = mixDuration;
        }

        public void PlayAnimationAndPause(string animName, float percent)
        {
            skeletonGraphic.timeScale = 1;
            animationState.SetAnimation(0, animName, false);
            var duration = GetAnimationDuration(animName);
            skeletonGraphic.Update(percent * duration);
            skeletonGraphic.timeScale = 0;
        }
    }
}