using System;
using Spine.Unity;
using UnityEngine;
using UnityEngine.UI;

public class HorseController : MonoBehaviour
{
	private GameObjectPoolManager.GameObjectPool pool;
	private int skinID;
	protected SkeletonGraphic skeletonGraphic;

	protected Spine.AnimationState spineAnimationState;
	private GameObject instanceGO;

	protected UIHeroController hero;

	private Action onComplete;

	private bool isHeroShowBefore = false;

	public void Create(int _skinID, int _heroSkinID = 0, float scale = 1f, Action _onComplete = null, string motionName = "idle")
	{
		if (skinID == _skinID)
		{
			CreateHero(_heroSkinID);
			//避免重复创建
			return;
		}

		skinID = _skinID;
		var skinConfig = HorseSkinConfig.Get(skinID);

		this.transform.localScale = Vector3.one * scale;

		onComplete = _onComplete;
		pool = GameObjectPoolManager.Instance.RequestPool(UILoader.LoadPrefab("UIHorse"));

		if (!transform.gameObject.activeSelf)
		{
			transform.SetActive(true);
		}
		if (instanceGO == null)
		{
			instanceGO = pool.Request();
			instanceGO.transform.SetParent(transform);
			//transform 的Pivot Y是0，让instanceGO 居中
			instanceGO.transform.localPosition = new Vector3(0, instanceGO.GetComponent<RectTransform>().sizeDelta.y * 0.5f);

			//instanceGO.transform.localPosition = Vector3.zero;
			instanceGO.transform.localScale = Vector3.one;
			instanceGO.transform.localRotation = Quaternion.identity;
		}

		skeletonGraphic = instanceGO.GetComponentInChildren<SkeletonGraphic>(true);

		skeletonGraphic.skeletonDataAsset = ResManager.Instance.LoadAsset<SkeletonDataAsset>("UIEffect/Spine/Horse", skinConfig.Spine);
		if (skeletonGraphic.skeletonDataAsset == null)
		{

			transform.SetActive(false);
			if (pool != null)
				pool.Release(instanceGO);
			skeletonGraphic = null;
			Destroy(instanceGO);
			Debug.LogError("未配置spine");
			return;
		}
		skeletonGraphic.Initialize(true);

		skeletonGraphic.transform.localPosition = new Vector3(skinConfig.Poses[0], skinConfig.Poses[1], 0);
		isHeroShowBefore = skinConfig.heroFirst == 1;
		spineAnimationState = skeletonGraphic.AnimationState;
		spineAnimationState.Data.DefaultMix = 0f;
		if (motionName == "")
			motionName = GetFistSpineAnim();
		PlayAnimation(motionName, true);
		CreateHero(_heroSkinID);
		spineAnimationState.Complete -= OnAnimationComplete;
		spineAnimationState.Complete += OnAnimationComplete;
	}

	public void CreateHero(int heroSkinID)
	{
		if (instanceGO == null)
        {
			return;
        }
		hero = instanceGO.GetComponentInChildren<UIHeroController>(true);
		if (hero == null)
		{
			return; 
		}
		if (heroSkinID == 0)
		{
			hero.SetActive(false);
			return;
		}
		hero.SetActive(true);
		hero.Create(heroSkinID);
		//约定骑乘点骨骼名
		hero.GetComponent<BoneFollowerGraphic>().boneName = "mountPoint";
		if (isHeroShowBefore)
		{
			hero.transform.SetAsLastSibling();
		}
		else
		{
			hero.transform.SetAsFirstSibling();
		}
	}

	public void HeroPlay(string motionName, bool loop = false, bool replay=true)
	{
		hero.PlayAnimation(motionName, loop, replay);
	}


	protected void OnDestroy()
	{
		if (spineAnimationState != null)
		{
			spineAnimationState.Complete -= OnAnimationComplete;
		}
		if (pool != null)
			pool.Release(instanceGO);
		skeletonGraphic = null;
		pool = null;
	}

	/// <summary>
	/// 播放 Spine 动画
	/// </summary>
	/// <param name="motionName">动作名</param>
	/// <param name="loop">循环</param>
	/// <param name="replay">如果相同动作是否再次重播，比如跑步重播就会跳帧不顺滑</param>
	public virtual void PlayAnimation(string motionName, bool loop = false, bool replay=true)
	{
		if (spineAnimationState == null) return;

		if (GetCurrentAnimationName() == motionName && !replay)
			return;

		// 直接使用 ToString() 而不是调用 GetAnimationName
		spineAnimationState.SetAnimation(0, motionName.ToString(), loop);
	}

	// 播放第一个动画（作为默认动画）
	string GetFistSpineAnim()
	{
		var skeletonData = skeletonGraphic.Skeleton.Data;
		if (skeletonData.Animations.Count > 0)
		{
			return skeletonData.Animations.Items[0].Name;
		}
		else
		{
			Debug.LogError("Spine 数据中没有找到任何动画！武将皮肤：" + skinID);
		}
		return "";
	}

	/// <summary>
	/// 获取当前正在播放的 Spine 动画名称
	/// </summary>
	/// <returns>当前动画名称，如果没有动画则返回空字符串</returns>
	public string GetCurrentAnimationName()
	{
		if (spineAnimationState == null || spineAnimationState.GetCurrent(0) == null)
		{
			return string.Empty;
		}
		return spineAnimationState.GetCurrent(0).Animation.Name;
	}



	/// <summary>
	/// 动画完成事件处理
	/// </summary>
	protected virtual void OnAnimationComplete(Spine.TrackEntry trackEntry)
	{
		onComplete?.Invoke();
	}

	//越大越快
	public void SetSpeed(float speed)
	{
		spineAnimationState.TimeScale = speed;
	}

	public void SetEnabled(bool isEnable)
	{ 
		if (skeletonGraphic == null)
		{
			return;
		}
		skeletonGraphic.enabled = isEnable;
	}
}