using System;
using System.Collections.Generic;
using Data;
using Prefab;
using UnityEngine;
using Object = UnityEngine.Object;

namespace Utils
{
    public class GameObjectCreate:Singleton<GameObjectCreate>
    {
        private SpriteAnimator _animatorPrefab;
        public SpriteAnimator AnimatorPrefab
        {
            get
            {
                if (_animatorPrefab == null)
                {
                    _animatorPrefab=Resources.Load<SpriteAnimator>("Prefab/Animation");
                }
                return _animatorPrefab;
            }
        }

        private ImagePrefab _imagePrefab;
        public ImagePrefab ImagePrefab
        {
            get
            {
                if (_imagePrefab == null)
                {
                    _imagePrefab=Resources.Load<ImagePrefab>("Prefab/Image");
                }
                return _imagePrefab;
            }
        }
        
        
        /// <summary>
        /// 递归初始化单个绘图节点及其子节点，具有更强的健壮性和错误处理。
        /// </summary>
        /// <param name="drawNode">绘图节点定义。</param>
        /// <param name="parent">父节点对象。</param>
        /// <returns>创建的GameObject，如果失败则返回null</returns>
        public static GameObject InitBodyPart(DrawNodeDef drawNode, GameObject parent)
        {
            try
            {
                // 参数验证
                if (drawNode == null)
                {
                    Debug.LogWarning("InitBodyPart: drawNode参数为null");
                    return null;
                }

                if (!parent)
                {
                    Debug.LogWarning($"InitBodyPart: 父节点为null (节点名: {drawNode.nodeName})");
                    return null;
                }

                GameObject nodeObject = null;
                // 根据纹理数量创建不同类型的节点
                switch (drawNode.textures?.Length ?? 0)
                {
                    case 0:
                        // 无纹理节点
                        nodeObject = new GameObject(drawNode.nodeName);
                        nodeObject.transform.SetParent(parent.transform, false);
                        break;
                    case 1:
                        // 单纹理节点
                        if (!Instance.ImagePrefab)
                        {
                            Debug.LogError($"InitBodyPart: imagePrefab未设置 (节点名: {drawNode.nodeName})");
                            return null;
                        }
                        if (drawNode.textures != null)
                        {
                            var texture =
                                Managers.PackagesImageManager.Instance.GetSprite(drawNode.textures[0]); 
                            if (!texture)
                            {
                                Debug.LogWarning(
                                    $"InitBodyPart: 无法获取纹理 (节点名: {drawNode.nodeName}, 纹理ID: {drawNode.textures[0]})");
                            }

                            var imagePrefabCom = Object.Instantiate(Instance.ImagePrefab, parent.transform);
                            if (imagePrefabCom)
                            {
                                imagePrefabCom.SetSprite(texture);
                                nodeObject = imagePrefabCom.gameObject;
                            }
                            else
                            {
                                Debug.LogWarning($"InitBodyPart: 无法获取ImagePrefab组件 (节点名: {drawNode.nodeName})");
                            }
                        }

                        break;
                    default:
                        // 多纹理动画节点
                        if (!Instance.AnimatorPrefab)
                        {
                            Debug.LogError($"InitBodyPart: animatorPrefab未设置 (节点名: {drawNode.nodeName})");
                            return null;
                        }
                        
                        var animator = Object.Instantiate(Instance.AnimatorPrefab, parent.transform);
                        if (!animator)
                        {
                            Debug.LogWarning($"InitBodyPart: 无法获取SpriteAnimator组件 (节点名: {drawNode.nodeName})");
                            break;
                        }

                        animator.SetFPS(drawNode.FPS);
                        if (drawNode.textures != null)
                        {
                            var animatedSprites =
                                Managers.PackagesImageManager.Instance.GetSprites(drawNode.textures);
                        
                            if (animatedSprites.Length > 0)
                            {
                                animator.SetSprites(animatedSprites);
                                nodeObject = animator.gameObject;
                            }
                            else
                            {
                                Debug.LogWarning($"InitBodyPart: 没有有效的动画纹理 (节点名: {drawNode.nodeName})");
                            }
                        }

                        break;
                }

                // 设置节点属性
                if (!nodeObject) return nodeObject;
                nodeObject.transform.localPosition = drawNode.position;
                nodeObject.name = drawNode.nodeName ?? "UnnamedNode";
                // 递归初始化子节点
                if (drawNode.nodes == null) return nodeObject;
                foreach (var child in drawNode.nodes)
                {
                    try
                    {
                        InitBodyPart(child, nodeObject);
                    }
                    catch (Exception ex)
                    {
                        Debug.LogError($"InitBodyPart: 初始化子节点失败 (父节点: {drawNode.nodeName}): {ex.Message}");
                    }
                }

                return nodeObject;
            }
            catch (Exception ex)
            {
                Debug.LogError($"InitBodyPart: 初始化节点时发生未处理的异常 (节点名: {drawNode?.nodeName}): {ex}");
                return null;
            }
        }

        public static SpriteAnimator SpriteAnimator(Sprite[] sprites,Transform parent)
        {
            var spriteAnimator = Object.Instantiate(Instance.AnimatorPrefab,parent);
            spriteAnimator.SetSprites(sprites);
            spriteAnimator.transform.localPosition=Vector3.zero;
            return spriteAnimator;
        }

        public static SpriteAnimator SpriteAnimator(string[] spriteDefNames, Transform parent)
        {
            return SpriteAnimator(Managers.PackagesImageManager.Instance.GetSprites(spriteDefNames), parent);
        }

        public static ImagePrefab SpriteImage(Sprite sprite, Transform parent)
        {
            var spriteImage = Object.Instantiate(Instance.ImagePrefab,parent);
            spriteImage.SetSprite(sprite);
            spriteImage.transform.localPosition=Vector3.zero;
            return spriteImage;
        }
    }
}