using UnityEngine;
using Live2D.Cubism.Rendering;
using System.IO;
using UnityEngine.Rendering;
using YooAsset;
using System.Collections.Generic;
using System;

namespace GFGGame
{
    public class DressUpUtil
    {
        public const string HEAD_DEFAULT_RES_NAME = "head";
        public const string BODY_DEFAULT_RES_NAME = "body";
        public const string ROLE_OBJ_NAME = "Role";
        public const string HEAD_SPRITE_NAME = "Head";
        public const string BODY_SPRITE_NAME = "Body";
        public const string BODY_ANIMATION_NAME = "Body_a";
        public const string BODY_EFFECT_OBJ_NAME = "Body_eff";
        public const string FORMAT_SPRITE_NAME = "I_{0}_s{1}";
        public const string FORMAT_ANIMATION_NAME = "I_{0}_a{1}";
        public const string FORMAT_EFFECT_OBJ_NAME = "I_{0}_e{1}";

        public static List<DressUpLayerOperation> AddItemAsync(int itemID, GameObject sceneObj, bool needSetMask = false, bool showAni = true, GameObject parentObj = null, int resLayer = 0)
        {
            ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(itemID);
            if (itemCfg == null) return null;

            if (parentObj == null)
            {
                if (itemCfg.subType == ConstDressUpItemType.BEI_JING || DressUpMenuItemCfg1Array.Instance.CheckIsSceneTypeBySubType(itemCfg.subType))
                {
                    parentObj = sceneObj;
                }
                else
                {
                    //角色
                    Transform role = sceneObj.transform.Find(ROLE_OBJ_NAME);
                    parentObj = role.gameObject;
                }
            }
            showAni = showAni || itemCfg.subType == ConstDressUpItemType.ZHUANG_RONG;
            List<DressUpLayerOperation> handlers = new List<DressUpLayerOperation>();
            DressUpLayerOperation handler;
            if (resLayer > 0)
            {
                string layerName = "";
                switch (resLayer)
                {
                    case 1:
                        layerName = itemCfg.resLayer1;
                        break;
                    case 2:
                        layerName = itemCfg.resLayer2;
                        break;
                    case 3:
                        layerName = itemCfg.resLayer3;
                        break;
                }
                if (!string.IsNullOrEmpty(layerName))
                {
                    handler = UpdateLayerResAsync(itemCfg, parentObj, resLayer, needSetMask, showAni);
                    if (handler != null) handlers.Add(handler);
                }
            }
            else
            {
                //普通层
                if (!string.IsNullOrEmpty(itemCfg.resLayer1))
                {
                    handler = UpdateLayerResAsync(itemCfg, parentObj, 1, needSetMask, showAni);
                    if (handler != null) handlers.Add(handler);
                }
                //第二层
                if (!string.IsNullOrEmpty(itemCfg.resLayer2))
                {

                    handler = UpdateLayerResAsync(itemCfg, parentObj, 2, needSetMask, showAni);
                    if (handler != null) handlers.Add(handler);
                }
                //第三层
                if (!string.IsNullOrEmpty(itemCfg.resLayer3))
                {

                    handler = UpdateLayerResAsync(itemCfg, parentObj, 3, needSetMask, showAni);
                    if (handler != null) handlers.Add(handler);
                }
            }
            if(handlers.Count > 0)
            {
                return handlers;
            }
            return null;
        }

        public static string GetSpriteName(ItemCfg itemCfg, int layer)
        {
            if(itemCfg.subType == ConstDressUpItemType.BEI_JING)
            {
                return "Bg";
            }
            return string.Format(FORMAT_SPRITE_NAME, itemCfg.id, layer);
        }

        public static void RemoveItem(int itemID, GameObject parentObj)
        {
            ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(itemID);
            if (itemCfg == null || parentObj== null) return;
            string spritObjName;
            string aniObjName;
            //默认层
            if (!string.IsNullOrEmpty(itemCfg.resLayer1))
            {
                spritObjName = GetSpriteName(itemCfg, 1);
                TryRemoveSprite(parentObj, spritObjName);
                aniObjName = string.Format(FORMAT_ANIMATION_NAME, itemCfg.id, 1);
                TryRemoveObj(parentObj, aniObjName);
                aniObjName = string.Format(FORMAT_EFFECT_OBJ_NAME, itemCfg.id, 1);
                TryRemoveObj(parentObj, aniObjName);
            }
            //特殊层
            if (!string.IsNullOrEmpty(itemCfg.resLayer2))
            {
                spritObjName = GetSpriteName(itemCfg, 2);
                TryRemoveSprite(parentObj, spritObjName);
                aniObjName = string.Format(FORMAT_ANIMATION_NAME, itemCfg.id, 2);
                TryRemoveObj(parentObj, aniObjName);
                aniObjName = string.Format(FORMAT_EFFECT_OBJ_NAME, itemCfg.id, 2);
                TryRemoveObj(parentObj, aniObjName);
            }
            //第三层
            if (!string.IsNullOrEmpty(itemCfg.resLayer3))
            {
                spritObjName = GetSpriteName(itemCfg, 3);
                TryRemoveSprite(parentObj, spritObjName);
                aniObjName = string.Format(FORMAT_ANIMATION_NAME, itemCfg.id, 3);
                TryRemoveObj(parentObj, aniObjName);
                aniObjName = string.Format(FORMAT_EFFECT_OBJ_NAME, itemCfg.id, 3);
                TryRemoveObj(parentObj, aniObjName);
            }
        }

        public static DressUpRemoveOperation RemoveItemAsync(int itemID, GameObject sceneObj, GameObject parentObj = null)
        {
            ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(itemID);
            if (itemCfg == null) return null;
            if (parentObj == null)
            {
                if (itemCfg.subType == ConstDressUpItemType.BEI_JING || DressUpMenuItemCfg1Array.Instance.CheckIsSceneTypeBySubType(itemCfg.subType))
                {
                    parentObj = sceneObj;
                }
                else
                {
                    //角色
                    Transform role = sceneObj.transform.Find(ROLE_OBJ_NAME);
                    parentObj = role.gameObject;
                }
            }
            var operation = new DressUpRemoveOperation(itemID, parentObj);
            operation.Begin();
            return operation;
        }

        public static DressUpLayerOperation UpdateHeadAsync(bool show, GameObject sceneObj, bool needSetMask = false, GameObject parentObj = null)
        {
            var roleTf = sceneObj.transform.Find(ROLE_OBJ_NAME);
            parentObj = parentObj == null ? roleTf.gameObject : parentObj;
            string res = null;
            string resPath = null;
            if(show)
            {
                res = HEAD_DEFAULT_RES_NAME;
                resPath = ResPathUtil.GetDressUpPath(res);
            }
            DressUpLayerOperation handler = new DressUpLayerOperation(parentObj, needSetMask, false, resPath, null);
            handler.InitHead();
            handler.Begin();
            return handler;
        }

        public static DressUpLayerOperation UpdateBodyAsync(string actionRes, GameObject sceneObj, bool needSetMask = false, GameObject parentObj = null, int itemIdLianYiQun = 0)
        {
            //角色
            var roleTf = sceneObj.transform.Find(ROLE_OBJ_NAME);
            parentObj = parentObj == null ? roleTf.gameObject : parentObj;

            var extPng = "png";
            string resPath = null;
            string effectResPath = null;
            bool showAni = !string.IsNullOrEmpty(actionRes);
            string aniResPath = null;
            if (showAni)
            {
                aniResPath = ResPathUtil.GetDressUpAnimationPath(actionRes);
                if(!YooAssets.CheckResExist(aniResPath))
                {
                    showAni = false;
                }
            }
            if(showAni)
            {
                resPath = aniResPath;
                //特效
                effectResPath = ResPathUtil.GetDressUpEffectPath(actionRes, true);
                if (!YooAssets.CheckResExist(effectResPath))
                {
                    effectResPath = null;
                }
            }
            else
            {
                bool hideBody = false;
                if(itemIdLianYiQun > 0)
                {
                    ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(itemIdLianYiQun);
                    hideBody = itemCfg.HideBody > 0;
                }
                if(hideBody)
                {
                    resPath = null;
                }
                else
                {
                    resPath = ResPathUtil.GetDressUpPath(BODY_DEFAULT_RES_NAME, extPng);
                }

            }
            if (!string.IsNullOrEmpty(resPath) && !YooAssets.CheckResExist(resPath))
            {
                return null;
            }
            DressUpLayerOperation handler = new DressUpLayerOperation(parentObj, needSetMask, showAni, resPath, effectResPath);
            handler.InitBody();
            handler.Begin();
            return handler;
        }

        private static DressUpLayerOperation UpdateLayerResAsync(ItemCfg itemCfg, GameObject parentObj, int layerId, bool needSetMask, bool showAni = true)
        {
            string resPath;
            string aniResPath = null;
            //根据资源存在与否再次检查是否播放动画
            if (showAni)
            {
                aniResPath = ResPathUtil.GetDressUpLayerAnimationResPath(itemCfg, layerId);
                if(!YooAssets.CheckResExist(aniResPath))
                {
                    showAni = false;
                }
            }

            if (showAni)
            {
                resPath = aniResPath;
            }
            else
            {
                resPath = ResPathUtil.GetDressUpLayerSpriteResPath(itemCfg, layerId);
            }

            if (!YooAssets.CheckResExist(resPath))
            {
                return null;
            }

            //特效
            string effectResPath = ResPathUtil.GetDressUpLayerEffectResPath(itemCfg, layerId, showAni);
            if (!YooAssets.CheckResExist(effectResPath))
            {
                effectResPath = null;
            }
            DressUpLayerOperation handler = new DressUpLayerOperation(parentObj, needSetMask, showAni, resPath, effectResPath);
            handler.InitLayer(itemCfg, layerId);
            handler.Begin();
            return handler;
        }

        public static GameObject AddSpriteObj(string resPath, string objName, GameObject parentObj, int sortingOrder, bool needSetMask)
        {
            if (!YooAssets.CheckResExist(resPath))
            {
                return null;
            }
            var gameObj = GetGameObjExisted(parentObj, objName, resPath);
            if (gameObj != null)
            {
                return gameObj;
            }
            SpriteRenderer spr = null;
            gameObj = parentObj.transform.Find(objName)?.gameObject;
            if (gameObj == null)
            {
                gameObj = new GameObject(objName);
                gameObj.transform.SetParent(parentObj.transform, false);
            }
            spr = gameObj.GetComponent<SpriteRenderer>();
            if (spr == null)
            {
                spr = gameObj.AddComponent<SpriteRenderer>();
            }
            float tx, ty;
            LoadSpritePos(resPath, out tx, out ty);
            gameObj.transform.localPosition = new Vector3(tx, ty, gameObj.transform.localPosition.z);
            SpriteHelper.AddSpriteTo(spr, resPath);
            gameObj.SetActive(true);
            spr.sortingOrder = sortingOrder;

            if (needSetMask)
            {
                spr.maskInteraction = SpriteMaskInteraction.VisibleInsideMask;
                if (parentObj.transform.parent != null && parentObj.transform.parent.name == "targetRole")
                {
                    spr.maskInteraction = SpriteMaskInteraction.VisibleOutsideMask;
                }
                else
                {
                    spr.maskInteraction = SpriteMaskInteraction.VisibleInsideMask;
                }
            }
            else
            {
                spr.maskInteraction = SpriteMaskInteraction.None;
            }
            return gameObj;
        }

        public static GameObject AddAnimationObj(string resPath, string objName, GameObject parentObj, int sortingOrder)
        {
            var gameObj = GetGameObjExisted(parentObj, objName, resPath);
            if (gameObj != null)
            {
                return gameObj;
            }
            gameObj = PrefabManager.Instance.SpawnSync(resPath);
            if (gameObj == null)
            {
                return null;
            }
            if (objName == BODY_ANIMATION_NAME)
            {
                DressUpOffsetInfo dressUpOffsetInfo = gameObj.GetComponent<DressUpOffsetInfo>();
                if(dressUpOffsetInfo == null)
                {
                    dressUpOffsetInfo = gameObj.AddComponent<DressUpOffsetInfo>();
                    dressUpOffsetInfo.OffsetPosition = gameObj.transform.localPosition;
                    dressUpOffsetInfo.Rotation = gameObj.transform.localRotation;
                }
                //如果是动作动画，就根据动画位置及角度信息设置给Role对象
                parentObj.transform.localPosition = dressUpOffsetInfo.OffsetPosition;
                parentObj.transform.rotation = dressUpOffsetInfo.Rotation;
                //.SetPositionAndRotation(Vector3.zero, Quaternion.identity); 
            }
            gameObj.transform.localPosition = Vector3.zero;
            gameObj.transform.rotation = Quaternion.identity;
            gameObj.name = objName;
            gameObj.transform.SetParent(parentObj.transform, false);
            var render = gameObj.GetComponent<CubismRenderController>();
            if (render == null && gameObj.transform.childCount > 0)
            {
                var childObj = gameObj.transform.GetChild(0);
                if (childObj != null)
                {
                    render = childObj.GetComponent<CubismRenderController>();
                }
            }
            if (render != null && render.gameObject.activeSelf == true)
            {
                render.SortingOrder = sortingOrder;
            }
            SetRenderersOrder(gameObj, sortingOrder);
            return gameObj;
        }

        public static GameObject TryAddEffectObj(string resPath, string objName, GameObject parentObj, int sortingOrder)
        {
            var gameObj = GetGameObjExisted(parentObj, objName, resPath);
            if (gameObj != null)
            {
                return gameObj;
            }
            gameObj = PrefabManager.Instance.SpawnSync(resPath);
            if (gameObj == null)
            {
                return null;
            }

            DressUpOffsetInfo dressUpOffsetInfo = gameObj.GetComponent<DressUpOffsetInfo>();
            if (dressUpOffsetInfo == null)
            {
                dressUpOffsetInfo = gameObj.AddComponent<DressUpOffsetInfo>();
                dressUpOffsetInfo.OffsetPosition = gameObj.transform.localPosition;
                dressUpOffsetInfo.Rotation = gameObj.transform.localRotation;
            }
            gameObj.transform.localPosition = dressUpOffsetInfo.OffsetPosition;
            gameObj.transform.rotation = dressUpOffsetInfo.Rotation;
            gameObj.transform.SetParent(parentObj.transform, false);
            gameObj.name = objName;
            var sortingGroup = gameObj.transform.GetComponent<SortingGroup>();
            if (sortingGroup != null)
            {
                GameObject.Destroy(sortingGroup);
            }
            SetRenderersOrder(gameObj, sortingOrder + 1);//特效层默认高一个层级
            return gameObj;
        }

        public static bool TryRemoveObj(GameObject parentObj, string objName)
        {
            if (parentObj == null)
            {
                return false;
            }
            Transform transform = parentObj.transform.Find(objName);
            if (transform != null)
            {
                GameObject gameObj = transform.gameObject;
                if (gameObj != null)
                {
                    PrefabManager.Instance.Restore(gameObj);
                    return true;
                }
            }
            return false;
        }

        public static bool TryRemoveSprite(GameObject parentObj, string objName)
        {
            if (parentObj == null)
            {
                return false;
            }
            Transform transform = parentObj.transform.Find(objName);
            if (transform != null)
            {
                GameObject gameObj = transform.gameObject;
                if (gameObj != null)
                {
                    var spr = gameObj.GetComponent<SpriteRenderer>();
                    if(spr != null)
                    {
                        //LogUtil.LogEditor($"TryRemoveSprite {objName}");
                        SpriteHelper.RemoveSpriteFrom(spr);
                        gameObj.SetActive(false);
                    }
                    return true;
                }
            }
            return false;
        }

        public static GameObject GetGameObjExisted(GameObject parentObj, string objName, string resPath)
        {
            if (parentObj == null)
            {
                return null;
            }
            Transform transform = parentObj.transform.Find(objName);
            if (transform != null)
            {
                GameObject gameObj = transform.gameObject;
                if (gameObj != null)
                {
                    var assetReleaser = gameObj.GetComponent<AssetReleaser>();
                    if (assetReleaser != null)
                    {
                        if (assetReleaser.ResPath == resPath)
                        {
                            return gameObj;
                        }
                    }
                }
            }
            return null;
        }

        public static void LoadSpritePos(string resPath, out float tx, out float ty)
        {
            int index = resPath.LastIndexOf('.');
            resPath = resPath.Substring(0, index) + ".bytes";
            if (YooAssets.CheckResExist(resPath))
            {
                var handle = YooAssets.LoadAssetSync<TextAsset>(resPath);
                TextAsset asset = handle.AssetObject as TextAsset;
                var st = new MemoryStream(asset.bytes);
                var br = new BinaryReader(st);
                tx = br.ReadInt32() / 100f;
                ty = -br.ReadInt32() / 100f;
                handle.Release();
            }
            else
            {
                tx = 0;
                ty = 0;
            }
        }

        public static void SetRenderersOrder(GameObject gameObj, int sortingOrder)
        {
            var meshRenderers = gameObj.transform.GetComponentsInChildren<MeshRenderer>();
            for (int i = 0; i < meshRenderers.Length; i++)
            {
                var renderer = meshRenderers[i].GetComponent<Renderer>();
                if (renderer != null)
                {
                    renderer.sortingOrder = sortingOrder;
                }
            }
            ParticleSystem[] particles = gameObj.transform.GetComponentsInChildren<ParticleSystem>();
            for (int i = 0; i < particles.Length; i++)
            {
                var renderer = particles[i].GetComponent<Renderer>();
                if (renderer != null)
                {
                    renderer.sortingOrder = sortingOrder;
                }
            }
            var spritesRenderers = gameObj.transform.GetComponentsInChildren<SpriteRenderer>();
            for(int i = 0; i < spritesRenderers.Length; i++)
            {
                var spriteRender = spritesRenderers[i];
                spriteRender.sortingOrder = sortingOrder;
            }
        }

        public static List<int> GetSuitItems(int suitId, bool isAction, int[] excludeType = null, bool showOptional = true, bool CheckOwn = true)
        {
            SuitCfg suitCfg = SuitCfgArray.Instance.GetCfg(suitId);
            if (suitCfg == null)
            {
                return null;
            }
            List<int> items = new List<int>(suitCfg.partsArr);
            if (showOptional)
            {
                if (suitCfg.partsOptionalArr != null && suitCfg.partsOptionalArr.Length > 0)
                {
                    items.AddRange(suitCfg.partsOptionalArr);
                }
            }
            int subType = 0;
            //找到要穿的散件
            List<int> targetItemList = new List<int>();
            foreach (int itemId in items)
            {
                if (!CheckOwn || DressUpMenuItemDataManager.CheckHasItem(itemId))
                {
                    subType = ItemDataManager.GetItemSubType(itemId);
                    bool notInAction = SuitCfgArray.Instance.CheckItemNotInAction(itemId);
                    if (!isAction || notInAction)
                    {
                        if (excludeType == null || Array.IndexOf(excludeType, subType) < 0)
                        {
                            targetItemList.Add(itemId);
                        }
                    }
                }
            }
            return targetItemList;
        }
    }

}