using FairyGUI;
using System;
using System.Collections;
using System.Collections.Generic;
using UI.DressUp;
using UnityEngine;
using UnityEngine.EventSystems;

namespace GFGGame
{
    public class PhotographView : BaseView
    {
        private UI_PhotographUI _ui;
        private GameObject _scenePrefab;
        private GameObject _sceneObject;
        private DressUpObjDataCache equipDataCache;

        private const string MOVE = "MOVE";
        private const string SCALE = "SCALE";
        private const string ROTATION = "ROTATION";
        private const float MaxScale = 2;
        private const float MinScale = 0.1f;

        private GameObject bodyParent;
        private GameObject bgParent;
        private GameObject npcParent;
        private GameObject borderParent;
        private GameObject sceneParent;

        private List<int> _listData = null;//当前选择的资源数据
        private List<int> _equipRoleData = new List<int>();//当前穿戴的角色数据
        private Dictionary<int, List<int>> _equipSceneData = new Dictionary<int, List<int>>();//当前穿戴的场景数据
        private Dictionary<GameObject, Vector2> _equipPos = new Dictionary<GameObject, Vector2>();
        private Dictionary<GameObject, Vector2> _mousePos = new Dictionary<GameObject, Vector2>();
        private Dictionary<GameObject, float> _equipDistance = new Dictionary<GameObject, float>();
        // private GameObject hitGameObj;//当前选中的物体
        private GameObject hitParentGameObj;//当前选中的父物体（需要进行移动缩放旋转的物体）
        private GameObject memoryHitParentGameObj;//当前选中的父物体（需要进行移动缩放旋转的物体）

        private Vector3 distance = Vector3.zero;//点击位置和点击物体原点的距离，用于
        private Vector2 lastPos = Vector2.zero;//上一次移动后从物体中心到鼠标位置的方向

        private float _startDistance;//从物体中心到缩放按钮的距离


        private SwipeGesture swipeGesture;
        private PinchGesture pinchGesture;
        private RotationGesture rotationGesture;

        private bool isTouchUI = false;//点击在m_comSelectBox按钮上
        private bool isTwoTouchPoint = false;
        private int maxLayer = int.MinValue;//最上层的层级数
        protected override void OnInit()
        {
            base.OnInit();
            packageName = UI_PhotographUI.PACKAGE_NAME;
            _ui = UI_PhotographUI.Create();
            viewCom = _ui.target;
            isfullScreen = true;

            _ui.m_btnBg.onClick.Add(OnClickBtnBg);
            _ui.m_btnChoose.onClick.Add(OnClickBtnChoose);
            _ui.m_btnBack.onClick.Add(OnClickBtnBack);
            _ui.m_btnPhotograph.onClick.Add(OnClickBtnPhotograph);

            _ui.m_ComSelectRes.m_list.itemRenderer = RenderListItem;
            _ui.m_ComSelectRes.m_list.onClickItem.Add(OnListItemClick);
            _ui.m_ComSelectRes.m_comBtnTab.m_c1.onChanged.Add(OnContorllerChanged);

            _scenePrefab = GFGAsset.Load<GameObject>(ResPathUtil.GetPrefabPath("ScenePhotograph"));

            _ui.target.onTouchBegin.Add(OnTouchUIBegin);
            _ui.target.onTouchMove.Add(OnTouchUIMove);
            _ui.target.onTouchEnd.Add(OnTouchUIEnd);

            _ui.m_comSelectBox.m_btnSize.onTouchBegin.Add(OnTouchBtnSizeBegin);
            _ui.m_comSelectBox.m_btnSize.onTouchMove.Add(OnTouchBtnSizeMove);
            _ui.m_comSelectBox.m_btnSize.onTouchEnd.Add(OnTouchBtnSizeEnd);

            _ui.m_comSelectBox.m_btnFlip.onTouchBegin.Add(OnTouchBtnFlipBegin);
            _ui.m_comSelectBox.m_btnFlip.onTouchEnd.Add(OnTouchBtnFlipEnd);

            _ui.m_comSelectBox.m_btnDelete.onTouchBegin.Add(OnTouchBtnDeleteBegin);
            _ui.m_comSelectBox.m_btnDelete.onTouchEnd.Add(OnTouchBtnDeleteEnd);

        }

        protected override void OnShown()
        {
            base.OnShown();
            Input.multiTouchEnabled = true;
            equipDataCache = EquipDataCache.cacher;

            if (_sceneObject == null)
            {
                _sceneObject = GameObject.Instantiate(_scenePrefab);
                EquipDataCache.cacher.setSceneObj(_sceneObject);
                bgParent = _sceneObject.transform.Find("Bg").gameObject;
                bodyParent = _sceneObject.transform.Find("Scene/Role").gameObject;
                sceneParent = _sceneObject.transform.Find("Scene").gameObject;
                npcParent = _sceneObject.transform.Find("Scene/Npc").gameObject;
                borderParent = _sceneObject.transform.Find("Border").gameObject;
            }

            pinchGesture = new PinchGesture(_ui.target);
            pinchGesture.onAction.Add(OnPinch);
            rotationGesture = new RotationGesture(_ui.target);
            rotationGesture.onAction.Add(OnRotate);

            _ui.m_ComSelectRes.m_comBtnTab.m_c1.selectedIndex = 0;
            OnClickBtnChoose();
            RefreshList(EnumPhotographType.BG);
            DisposeEquipData();

            SceneController.UpdatePhotographBgOrNpcOrBorder(_sceneObject, EnumPhotographType.BG, equipDataCache.bgId, maxLayer, out maxLayer);

            UpdateBody();
            UpdateScene();

        }
        /************************************************************UI界面*********************************************************/
        private void OnContorllerChanged(EventContext context)
        {
            int index = _ui.m_ComSelectRes.m_comBtnTab.m_c1.selectedIndex;
            RefreshList((EnumPhotographType)index);
        }
        private void RefreshList(EnumPhotographType index)
        {
            _ui.m_ComSelectRes.m_list.numItems = 0;

            switch (index)
            {
                case EnumPhotographType.BG:
                    _listData = PhotographDataManager.Instance.listBgData;
                    break;
                case EnumPhotographType.NPC:
                    _listData = PhotographDataManager.Instance.listNpcData;
                    break;
                case EnumPhotographType.SCENE:
                    _listData = PhotographDataManager.Instance.listSceneData;
                    break;
                case EnumPhotographType.BORDER:
                    _listData = PhotographDataManager.Instance.listBorderData;
                    break;
                case EnumPhotographType.EFFECT:
                    _listData = PhotographDataManager.Instance.listEffectData;
                    break;
            }
            _ui.m_ComSelectRes.m_list.numItems = _listData.Count;
        }
        private void RenderListItem(int index, GObject obj)
        {
            ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(_listData[index]);
            string resPath = ResPathUtil.GetIconPath(itemCfg);

            UI_ListItem item = UI_ListItem.Proxy(obj);
            item.target.data = _listData[index];
            item.m_loaIcon.url = resPath;
            item.m_txtName.text = itemCfg.name;
        }
        private void OnListItemClick(EventContext context)
        {
            int itemID = (int)((context.data as GObject).data);
            EnumPhotographType type = (EnumPhotographType)_ui.m_ComSelectRes.m_comBtnTab.m_c1.selectedIndex;
            switch (type)
            {
                case EnumPhotographType.BG:
                case EnumPhotographType.BORDER:
                case EnumPhotographType.NPC:
                    SceneController.UpdatePhotographBgOrNpcOrBorder(_sceneObject, type, itemID, maxLayer, out maxLayer);
                    break;

                case EnumPhotographType.SCENE:

                    PhotographDataManager.Instance.AddEquipItem(_equipSceneData, itemID, out _equipSceneData);
                    SceneController.AddItemToScene(_sceneObject, itemID, _equipSceneData[itemID].Count - 1, maxLayer + 1);
                    maxLayer++;
                    break;
                case EnumPhotographType.EFFECT:

                    break;
            }
        }
        /**************************  **********************************场景*********************************************************/

        private void OnTouchUIBegin(EventContext context)
        {
            context.CaptureTouch();
            if (_ui.m_ComSelectRes.target.visible == true) return;
            if (Stage.inst.touchCount > 1 || context.inputEvent.touchId != 0 || isTwoTouchPoint) return;//只监听一根手指
            if (isTouchUI) return;

            RaycastHit2D[] hit2Ds = Physics2D.RaycastAll(Camera.main.ScreenToWorldPoint(Input.mousePosition), Vector2.zero);
            if (hit2Ds.Length > 0)
            {
                maxLayer++;
                hitParentGameObj = SceneController.GetFirstHitObj(hit2Ds);

                _ui.m_comSelectBox.m_btnDelete.visible = true;
                if (hitParentGameObj.name == "Body")//主角不可删除
                {
                    _ui.m_comSelectBox.m_btnDelete.visible = false;
                }
                _ui.m_comSelectBox.target.visible = false;
                if (hitParentGameObj.name != "BgRes")//背景不可改动层级
                {
                    hitParentGameObj.GetComponent<SpriteRenderer>().sortingOrder = maxLayer;
                    hitParentGameObj = hitParentGameObj.transform.parent.gameObject;
                    _ui.m_comSelectBox.target.visible = true;

                }

                distance = Input.mousePosition - Camera.main.WorldToScreenPoint(hitParentGameObj.transform.position);


                if (_ui.m_comSelectBox.target.data == null || _ui.m_comSelectBox.target.data as GameObject != hitParentGameObj)
                {
                    lastPos = Vector2.zero;
                    _ui.m_comSelectBox.target.rotation = -hitParentGameObj.transform.eulerAngles.z;
                    _ui.m_comSelectBox.target.size = SceneController.GetGameObjectSize(hitParentGameObj);
                }
                _ui.m_comSelectBox.target.data = hitParentGameObj;

                ControllerSelectBoxPos();
            }
        }

        private void OnTouchUIMove(EventContext context)
        {
            if (hitParentGameObj == null) return;//未选中任何物体
            if (Stage.inst.touchCount > 1 || context.inputEvent.touchId != 0 || isTwoTouchPoint) return; //只监听1根手指
            if (isTouchUI) return;

            Debug.Log("拖动");
            ControllerObjectPos();
            ControllerSelectBoxPos();

        }
        private void OnTouchUIEnd(EventContext context)
        {
            if (Stage.inst.touchCount > 1 || context.inputEvent.touchId != 0) return; //只监听1根手指
            hitParentGameObj = null;
            if (Stage.inst.touchCount == 0)
            {
                isTwoTouchPoint = false;
            }
        }

        //选中物体的位置
        private void ControllerObjectPos()
        {
            hitParentGameObj.transform.position = Camera.main.ScreenToWorldPoint(Input.mousePosition - distance);
            if (hitParentGameObj.name == "BgRes")
            {
                Vector2 size = hitParentGameObj.GetComponent<SpriteRenderer>().size;
                Vector2 uiSize = _ui.target.size;
                float deviationWidth = (size.x - uiSize.x / 100) / 2;
                float deviationHeigh = (size.y - uiSize.y / 100) / 2;
                Vector2 pos = hitParentGameObj.transform.position;
                if (pos.x <= -deviationWidth)
                {
                    hitParentGameObj.transform.position = new Vector2(-deviationWidth, hitParentGameObj.transform.position.y);
                }
                if (pos.x >= deviationWidth)
                {
                    hitParentGameObj.transform.position = new Vector2(deviationWidth, hitParentGameObj.transform.position.y);
                }
                if (pos.y <= -deviationHeigh)
                {
                    hitParentGameObj.transform.position = new Vector2(hitParentGameObj.transform.position.x, -deviationHeigh);
                }
                if (pos.y >= deviationHeigh)
                {
                    hitParentGameObj.transform.position = new Vector2(hitParentGameObj.transform.position.x, deviationHeigh);
                }
            }
        }

        //选中框的位置
        private void ControllerSelectBoxPos()
        {
            SceneController.SetGameObjectCenter(hitParentGameObj);

            //位置：角色、道具、npc全用对应父物体的位置
            Vector2 objScreenPos = Camera.main.WorldToScreenPoint(hitParentGameObj.transform.position);
            Vector2 localPos = this.viewCom.GlobalToLocal(new Vector2(objScreenPos.x, (Screen.height - objScreenPos.y)));

            _ui.m_comSelectBox.target.position = localPos;//(localPos.x, localPos.y);

        }



        private void OnTouchBtnSizeBegin(EventContext context)
        {
            isTouchUI = true;

            GameObject gameObject = _ui.m_comSelectBox.target.data as GameObject;
            InputEvent inputEvent = (InputEvent)context.data;
            Vector2 screenPos = this.viewCom.GlobalToLocal(_ui.m_comSelectBox.m_btnSize.LocalToGlobal(Vector2.zero));
            Vector2 pt = new Vector2(screenPos.x, screenPos.y);
            Vector2 pt1 = this.viewCom.GlobalToLocal(new Vector2(inputEvent.x, inputEvent.y));
            Vector2 pt2 = new Vector2(_ui.m_comSelectBox.target.x, _ui.m_comSelectBox.target.y);
            Debug.Log("pt1" + pt1 + "   pt2:" + pt2);

            if (!_equipDistance.ContainsKey(gameObject))
            {
                float distance = Vector2.Distance(pt, pt2) / gameObject.transform.localScale.x;
                _equipDistance.Add(gameObject, distance);
            }
            _startDistance = _equipDistance[gameObject];
            Debug.Log("_startDistance:" + _startDistance);

        }
        private void OnTouchBtnSizeMove(EventContext context)
        {
            GameObject gameObject = _ui.m_comSelectBox.target.data as GameObject;
            if (gameObject == null) return;
            InputEvent inputEvent = (InputEvent)context.data;
            Vector2 pt1 = this.viewCom.GlobalToLocal(new Vector2(inputEvent.x, inputEvent.y));
            Vector2 pt2 = new Vector2(_ui.m_comSelectBox.target.x, _ui.m_comSelectBox.target.y);
            Vector2 curPos = pt1 - pt2;
            Debug.Log("pt1" + pt1 + "   pt2:" + pt2 + "  curPos:" + curPos + "    lastPos:" + lastPos);
            float angle = Vector3.Angle(lastPos, curPos); //求出两向量之间的夹角 
            Vector3 normal = Vector3.Cross(lastPos, curPos);//叉乘求出法线向量 
            angle *= Mathf.Sign(Vector3.Dot(normal, Vector3.forward));  //Mathf.Sign()求符号，Vector3.Dot()求方向，求法线向量与物体上方向向量点乘，结果为1或-1，修正旋转方向 
            lastPos = curPos;
            ControllerRotate(angle, gameObject);
            Debug.Log("angle:" + angle);

            float dist = Vector2.Distance(pt1, pt2);
            Debug.Log("dist:" + dist);

            float ss = dist / _startDistance;
            float newValue = Mathf.Clamp(ss, 0.1f, 2);
            ControllerScale(newValue, gameObject);

        }
        private void OnTouchBtnSizeEnd(EventContext context)
        {
            isTouchUI = false;
            lastPos = Vector2.zero;
        }



        //双指缩放
        private void OnPinch(EventContext context)
        {
            if (hitParentGameObj == null) return;
            if (hitParentGameObj.name == "BgRes") return;//背景不可以缩放、旋转
            isTwoTouchPoint = true;

            GTween.Kill(hitParentGameObj);

            PinchGesture gesture = (PinchGesture)context.sender;
            float newValue = Mathf.Clamp(hitParentGameObj.transform.localScale.x + gesture.delta, 0.3f, 2);
            Debug.Log("双指缩放:" + newValue);

            ControllerScale(newValue, hitParentGameObj);
        }

        private void ControllerScale(float value, GameObject gameObject)
        {
            if (value > MaxScale || value < MinScale) return;
            gameObject.transform.localScale = new Vector3(value, value, value);
            Vector2 size = SceneController.GetGameObjectSize(gameObject);
            _ui.m_comSelectBox.target.SetSize(size.x, size.y);
        }


        private void OnRotate(EventContext context)
        {
            if (hitParentGameObj == null) return;
            if (hitParentGameObj.name == "BgRes") return;//背景不可以缩放、旋转
            isTwoTouchPoint = true;


            GTween.Kill(hitParentGameObj.transform);

            RotationGesture gesture = (RotationGesture)context.sender;
            Debug.Log("双指旋转:" + gesture.delta);

            ControllerRotate(gesture.delta, hitParentGameObj);
        }
        private void ControllerRotate(float value, GameObject gameObject)
        {
            gameObject.transform.Rotate(Vector3.forward, -value, Space.World);
            _ui.m_comSelectBox.target.rotation += value;
        }

        //主角
        private void UpdateBody()
        {

            SceneController.UpdatePhotographBody(_equipRoleData.ToArray(), _sceneObject, false, null, false, bodyParent);
        }
        //场景道具
        private void UpdateScene()
        {
            ICollection keys = _equipSceneData.Keys;
            foreach (int key in keys)
            {
                for (int i = 0; i < _equipSceneData[key].Count; i++)
                {
                    SceneController.AddItemToScene(_sceneObject, key, i);
                    ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(key);
                    PhotographDataManager.Instance.GetMaxLayer(maxLayer, false, itemCfg, out maxLayer);
                }
            }
        }


        //滤镜效果
        private void UpdateEffect()
        {

        }



        private void DisposeEquipData()
        {
            for (int i = 0; i < equipDataCache.equipDatas.Length; i++)
            {
                ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(equipDataCache.equipDatas[i]);
                if (itemCfg.subType == ConstDressUpItemType.QIAN_JING || itemCfg.subType == ConstDressUpItemType.BEI_SHI || itemCfg.subType == ConstDressUpItemType.HUAN_JING)
                {
                    PhotographDataManager.Instance.AddEquipItem(_equipSceneData, itemCfg.id, out _equipSceneData);
                }
                else
                {
                    _equipRoleData.Add(equipDataCache.equipDatas[i]);
                }
            }

        }

        private void OnClickBtnBg()
        {
            _ui.m_ComSelectRes.target.visible = false;

        }
        private void OnClickBtnChoose()
        {
            _ui.m_ComSelectRes.target.visible = true;
            _ui.m_comSelectBox.target.visible = false;
            hitParentGameObj = null;
        }
        private void OnTouchBtnFlipBegin()
        {
            isTouchUI = true;
            Transform transform = (_ui.m_comSelectBox.target.data as GameObject).transform;
            for (int i = 0; i < transform.childCount; i++)
            {
                transform.GetChild(i).Rotate(Vector3.up, 180, Space.World);
            }
        }
        private void OnTouchBtnFlipEnd()
        {
            isTouchUI = false;
        }

        private void OnTouchBtnDeleteBegin()
        {
            isTouchUI = true;
            GameObject gameObject = _ui.m_comSelectBox.target.data as GameObject;
            if (gameObject.transform.gameObject == bodyParent)
            {
                return;
            }
            else if (gameObject.transform.gameObject == npcParent)
            {
                SpriteRenderer spriteRenderer = gameObject.transform.GetChild(0).GetComponent<SpriteRenderer>();
                if (spriteRenderer != null)
                {
                    GameObject.Destroy(spriteRenderer);
                }
            }
            else
            {
                GameObject.DestroyImmediate(gameObject);
            }
            _ui.m_comSelectBox.target.visible = false;

        }
        private void OnTouchBtnDeleteEnd()
        {
            isTouchUI = false;
        }
        private void OnClickBtnPhotograph()
        {
            _ui.target.visible = false;
            Timers.inst.StartCoroutine(ScreenShotTex());// ();
        }
        private IEnumerator ScreenShotTex()
        {
            _ui.target.visible = false;
            yield return new WaitForEndOfFrame();

            Rect rect = new Rect(0, 0, UnityEngine.Screen.width, UnityEngine.Screen.height);
            Texture2D tex = new Texture2D((int)rect.width, (int)rect.height, TextureFormat.ARGB32, false);//新建一个Texture2D对象
            tex.ReadPixels(rect, 0, 0);//读取像素，屏幕左下角为0点
            tex.Apply();//保存像素信息

            ViewManager.Show<PhotographSaveView>(tex);
            _ui.target.visible = true;

        }

        private void OnClickBtnBack()
        {
            this.Hide();
            // ViewManager.Show(ViewName.DRESS_UP_VIEW);
            EventAgent.DispatchEvent(ConstMessage.CLOSE_PHOTOGRAPHVIEW);
        }
        protected override void OnHide()
        {
            base.OnHide();
            if (_sceneObject != null)
            {
                GameObject.Destroy(_sceneObject);
                _sceneObject = null;
            }
            equipDataCache = null;
            _equipRoleData.Clear();
            _equipSceneData.Clear();
            hitParentGameObj = null;

            pinchGesture.onAction.Remove(OnPinch);
            rotationGesture.onAction.Remove(OnRotate);
            pinchGesture = null;
            rotationGesture = null;
        }
        public override void Dispose()
        {
            if (_scenePrefab != null)
            {
                GameObject.Destroy(_scenePrefab);
                _scenePrefab = null;
            }
            base.Dispose();
        }

    }
}