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

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

        private const int MAX_COUNT = 8;
        private const float MaxScale = 2;
        private const float MinScale = 0.1f;
        private const string BgResPath = "Bg/BgRes";
        private const string BorderResPath = "Border/BorderRes";
        private const string NpcResPath = "Scene/Npc/NpcRes";
        private const string RolePath = "Scene/Role";
        private const string RoleName = "Role";
        private const string NpcPath = "Scene/Npc";
        private const string NpcName = "Npc";
        private const string BgResName = "BgRes";

        private List<int> _listData = null;//当前选择的资源数据
        private List<GameObject> _itemGameObjs;// = new List<GameObject>();

        public Dictionary<int, List<int>> _equipSceneData = new Dictionary<int, List<int>>();//当前穿戴的场景数据
        private Dictionary<GameObject, float> _equipDistance = new Dictionary<GameObject, float>();

        private GameObject hitGameObj;//当前选中的物体（单指拖动，双指缩放旋转）
        private GameObject memoryHitGameObj;//当前选中的物体（单指缩放旋转）

        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 lastDistance = 0;//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 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_loaGuide.onClick.Add(OnClickLoaGuide);
            _ui.m_loaGuide1.onClick.Add(OnClickLoaGuide1);
            _ui.m_btnChoose.onClick.Add(SetUIView);
            _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_btnUp.onClick.Add(OnClickBtnUp);
            _ui.m_btnDown.onClick.Add(OnClickBtnDown);

        }

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

            PhotographDataManager.Instance.ClassifyEquipData();
            _equipSceneData = PhotographDataManager.Instance._equipSceneData;

            PhotographDataManager.Instance.itemGameObjs.Clear();
            _itemGameObjs = PhotographDataManager.Instance.itemGameObjs;
            if (_sceneObject == null)
            {
                _sceneObject = GameObject.Instantiate(_scenePrefab);
                EquipDataCache.cacher.setSceneObj(_sceneObject);
                PhotographSceneManager.Instance.sceneObject = _sceneObject;
            }
            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;

            RefreshList(EnumPhotographType.BG);
            SetUIView();
            PhotographSceneManager.Instance.AddBgItem(ItemCfgArray.Instance.GetCfg(EquipDataCache.cacher.bgId));
            PhotographSceneManager.Instance.AddBodyItem();
            UpdateScene();
            PhotographDataManager.Instance.SetLayer(null, "refresh");

            if (GuideDataManager.IsGuideFinish(ConstGuideId.PHOTOGRAPH) > 0)
            {
                _ui.m_loaGuide.enabled = false;
                _ui.m_loaGuide1.enabled = false;
            }
            else
            {
                _ui.m_loaGuide.enabled = true;
                _ui.m_loaGuide1.enabled = false;
            }
            // CreatTex();
        }
        /************************************************************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;

            _listData = PhotographDataManager.Instance.GetListData(index);
            _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)
        {
            if (_itemGameObjs.Count >= MAX_COUNT)
            {
                PromptController.Instance.ShowFloatTextPrompt("最多穿戴" + MAX_COUNT + "件物品");
                return;
            }
            int itemID = (int)((context.data as GObject).data);
            ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(itemID);

            EnumPhotographType type = (EnumPhotographType)_ui.m_ComSelectRes.m_comBtnTab.m_c1.selectedIndex;
            switch (type)
            {
                case EnumPhotographType.BG:

                    PhotographSceneManager.Instance.AddBgItem(itemCfg);
                    break;

                case EnumPhotographType.BORDER:

                    PhotographSceneManager.Instance.AddBorderItem(itemCfg);
                    break;

                case EnumPhotographType.NPC:

                    PhotographSceneManager.Instance.AddNpcItem(itemCfg);
                    break;

                case EnumPhotographType.SCENE:
                    AddSceneItem(itemCfg, true);
                    break;
                case EnumPhotographType.EFFECT:

                    break;
            }
        }
        //添加初始场景道具
        private void UpdateScene()
        {
            ICollection keys = _equipSceneData.Keys;
            foreach (int key in keys)
            {
                for (int i = 0; i < _equipSceneData[key].Count; i++)
                {
                    ItemCfg itemCfg = ItemCfgArray.Instance.GetCfg(key);

                    AddSceneItem(itemCfg, false);
                }
            }
        }

        private void AddSceneItem(ItemCfg itemCfg, bool setLayer)
        {
            Vector2 pos = Vector2.zero;
            if (itemCfg.resLayer2 > 0)
            {
                GameObject parentGameObj2 = new GameObject(string.Format("{0}_{1}", itemCfg.id, 2));
                PhotographSceneManager.Instance.AddSceneItem(parentGameObj2, itemCfg, itemCfg.resLayer2, setLayer);
                if (setLayer)
                {
                    parentGameObj2.transform.localPosition = -parentGameObj2.transform.GetChild(0).localPosition;
                    pos = parentGameObj2.transform.localPosition;
                }
            }
            if (itemCfg.resLayer1 > 0)
            {
                GameObject parentGameObj1 = new GameObject(string.Format("{0}_{1}", itemCfg.id, 1));
                PhotographSceneManager.Instance.AddSceneItem(parentGameObj1, itemCfg, itemCfg.resLayer1, setLayer);

                if (setLayer)
                {
                    if (itemCfg.resLayer2 > 0)
                    {
                        parentGameObj1.transform.localPosition = pos;
                    }
                    else
                    {
                        parentGameObj1.transform.localPosition = -parentGameObj1.transform.GetChild(0).localPosition;
                    }
                }
            }

            // GameObject parentGameObj2;


        }
        /************************************************************场景*********************************************************/

        private void OnTouchUIBegin(EventContext context)
        {
            context.CaptureTouch();
            if (_ui.m_ComSelectRes.target.visible == true) return;//添加道具不监听场景点击
            if (Stage.inst.touchCount > 1 && hitGameObj != null || Stage.inst.touchCount == 1 && context.inputEvent.touchId != 0) return;//两根手指&&两指不是同时按下||一根手指但属于中途换指
            if (PhotographDataManager.Instance.IsTouchUI(this.viewCom)) return;

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

                lastPos = Vector2.zero;

                hitGameObj = SceneController.GetFirstHitObj(hit2Ds);

                _ui.m_comSelectBox.m_btnDelete.visible = true;
                if (hitGameObj.name == "Body")//主角不可删除
                {
                    _ui.m_comSelectBox.m_btnDelete.visible = false;
                }
                _ui.m_comSelectBox.target.visible = false;
                if (hitGameObj.name != BgResName)//背景不可改动层级
                {
                    hitGameObj = hitGameObj.transform.parent.gameObject;

                    _ui.m_comSelectBox.target.visible = true;

                    PhotographDataManager.Instance.SetLayer(hitGameObj, "top");

                    if (!_equipDistance.ContainsKey(hitGameObj))
                    {
                        SceneController.SetGameObjectCenter(hitGameObj);
                    }
                }
                memoryHitGameObj = hitGameObj;

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

                Vector3 localEulerAngles = hitGameObj.transform.localEulerAngles;
                float rotation = 0;
                if (localEulerAngles.y == 0)
                {
                    rotation = -hitGameObj.transform.localEulerAngles.z;
                }
                else
                {
                    if (hitGameObj.transform.localEulerAngles.z > 180)
                    {
                        rotation = hitGameObj.transform.localEulerAngles.z - 360;
                    }
                    else
                    {
                        rotation = hitGameObj.transform.localEulerAngles.z;
                    }
                }
                _ui.m_comSelectBox.target.rotation = rotation;
                Debug.Log("rotation:" + _ui.m_comSelectBox.target.rotation + "   " + _ui.m_comSelectBox.target.rotationX + "    " + _ui.m_comSelectBox.target.rotationY);
                _ui.m_comSelectBox.target.size = SceneController.GetGameObjectSize(hitGameObj);
                ControllerSelectBoxPos();

            }
        }

        private void OnTouchUIMove(EventContext context)
        {
            if (hitGameObj == null) return;//未选中任何物体
            if (Stage.inst.touchCount > 1) return; //只监听1根手指
            if (PhotographDataManager.Instance.IsTouchUI(this.viewCom)) return;

            Debug.Log("拖动");
            ControllerObjectPos();
            ControllerSelectBoxPos();
        }
        private void OnTouchUIEnd(EventContext context)
        {
            hitGameObj = null;
        }


        //选中物体的位置
        private void ControllerObjectPos()
        {
            hitGameObj.transform.position = Camera.main.ScreenToWorldPoint(Input.mousePosition - distance);
            if (hitGameObj.name == BgResName)
            {
                PhotographDataManager.Instance.SetBgPos(hitGameObj, _ui.target.size);
            }
        }
        //选中框的位置
        private void ControllerSelectBoxPos()
        {
            Vector2 objScreenPos = Camera.main.WorldToScreenPoint(hitGameObj.transform.position);
            Vector2 localPos = this.viewCom.GlobalToLocal(new Vector2(objScreenPos.x, (Screen.height - objScreenPos.y)));
            _ui.m_comSelectBox.target.position = localPos;
        }



        private void OnTouchBtnSizeBegin(EventContext context)
        {
            InputEvent inputEvent = (InputEvent)context.data;
            Vector2 pt0 = this.viewCom.GlobalToLocal(new Vector2(inputEvent.x, inputEvent.y));

            Vector2 screenPos = this.viewCom.GlobalToLocal(_ui.m_comSelectBox.m_btnSize.LocalToGlobal(Vector2.zero));
            Vector2 pt1 = new Vector2(screenPos.x, screenPos.y);
            Vector2 pt2 = new Vector2(_ui.m_comSelectBox.target.x, _ui.m_comSelectBox.target.y);
            lastDistance = Vector2.Distance(pt0, pt2);
            if (!_equipDistance.ContainsKey(memoryHitGameObj))
            {
                float distance = Vector2.Distance(pt1, pt2) / memoryHitGameObj.transform.localScale.x;
                Debug.Log("distance:" + distance + "    pt1:" + pt1 + "   pt2:" + pt2);
                _equipDistance.Add(memoryHitGameObj, distance);
            }
        }
        private void OnTouchBtnSizeMove(EventContext context)
        {
            if (memoryHitGameObj == 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;

            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, memoryHitGameObj);

            float dist = Vector2.Distance(pt1, pt2);

            float ss = dist / lastDistance;
            Debug.Log("dist:" + dist + "   lastDistance:" + lastDistance + "  ss:" + ss);
            float newValue = Mathf.Clamp(ss * memoryHitGameObj.transform.localScale.x, 0.1f, 2);
            ControllerScale(newValue, memoryHitGameObj);

            if (newValue <= 0.1f) return;
            Debug.Log("ss:" + ss + "    newValue:" + newValue);
            lastDistance = dist;
            Debug.Log("newValue:" + newValue);




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



        //双指缩放
        private void OnPinch(EventContext context)
        {

            if (hitGameObj == null) return;
            if (hitGameObj.name == BgResName) return;//背景不可以缩放、旋转

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

            ControllerScale(newValue, hitGameObj);
        }
        //双指旋转
        private void OnRotate(EventContext context)
        {
            Debug.Log("双指旋转hitGameObj:" + hitGameObj);
            if (hitGameObj == null) return;
            Debug.Log("双指旋转name:" + hitGameObj.name);
            if (hitGameObj.name == BgResName) return;//背景不可以缩放、旋转
            // isTwoTouchPoint = true;

            GTween.Kill(hitGameObj.transform);
            RotationGesture gesture = (RotationGesture)context.sender;
            Debug.Log("双指旋转:" + gesture.delta);
            ControllerRotate(gesture.delta, hitGameObj);
        }


        private void ControllerScale(float value, GameObject gameObject)
        {
            if (value > MaxScale || value < MinScale) return;
            gameObject.transform.localScale = new Vector3(value, value, 1);
            Vector2 size = SceneController.GetGameObjectSize(gameObject);
            _ui.m_comSelectBox.target.size = size;
        }
        private void ControllerRotate(float value, GameObject gameObject)
        {
            gameObject.transform.Rotate(Vector3.forward, -value, Space.World);
            _ui.m_comSelectBox.target.rotation += value;
        }


        private void OnClickBtnBg()
        {
            _ui.m_ComSelectRes.target.visible = false;
        }
        private void OnClickLoaGuide()
        {
            _ui.m_loaGuide1.enabled = true;
            _ui.m_loaGuide.enabled = false;
            _ui.m_ComSelectRes.target.visible = false;
        }
        private void OnClickLoaGuide1()
        {
            _ui.m_loaGuide1.enabled = false;
            _ui.m_ComSelectRes.target.visible = false;
        }
        private void OnTouchBtnFlipBegin()//翻转
        {
            Transform transform = memoryHitGameObj.transform;
            if (memoryHitGameObj.name == RoleName)
            {
                transform.Rotate(Vector3.up, 180, Space.Self);
                return;
            }
            for (int i = 0; i < transform.childCount; i++)
            {
                transform.GetChild(i).Rotate(Vector3.up, 180, Space.Self);
            }
        }
        private void OnTouchBtnFlipEnd()
        {

        }

        private void OnTouchBtnDeleteBegin()//删除
        {
            if (memoryHitGameObj.transform.name == RolePath)
            {
                return;
            }
            else if (memoryHitGameObj.transform.name == NpcName)
            {
                SpriteRenderer spriteRenderer = memoryHitGameObj.transform.GetChild(0).GetComponent<SpriteRenderer>();
                if (spriteRenderer != null)
                {
                    GameObject.Destroy(spriteRenderer);
                }
            }
            else
            {
                GameObject.DestroyImmediate(memoryHitGameObj);
            }
            _itemGameObjs.Remove(memoryHitGameObj);
            _ui.m_comSelectBox.target.visible = false;
        }

        private void SetUIView()
        {
            _ui.m_ComSelectRes.target.visible = true;
            _ui.m_comSelectBox.target.visible = false;
            hitGameObj = null;
            memoryHitGameObj = null;
        }

        private void OnClickBtnUp()
        {

            PhotographDataManager.Instance.SetLayer(memoryHitGameObj, "up");
        }
        private void OnClickBtnDown()
        {
            PhotographDataManager.Instance.SetLayer(memoryHitGameObj, "down");
        }



        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;
            }

            _equipSceneData.Clear();
            hitGameObj = null;
            memoryHitGameObj = 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();
        }

        protected override void UpdateToCheckGuide(object param)
        {
            if (!ViewManager.CheckIsTopView(this.viewCom)) return;
            GuideController.TryGuide(_ui.m_ComSelectRes.m_comBtnTab.m_btn2, ConstGuideId.PHOTOGRAPH, 4, "可以自由添加已有道具");
            GuideController.TryGuide(_ui.m_loaGuide, ConstGuideId.PHOTOGRAPH, 5, "点击空白处查看整体效果", -1, true, (int)(_ui.m_loaGuide.y + _ui.m_loaGuide.height - 250));
            GuideController.TryGuide(_ui.m_loaGuide1, ConstGuideId.PHOTOGRAPH, 6, "双指可控制放大缩小，或点击边框上的按键控制", -1, true, (int)(_ui.m_loaGuide1.y + _ui.m_loaGuide1.height - 250));
            GuideController.TryGuide(_ui.m_btnPhotograph, ConstGuideId.PHOTOGRAPH, 7, "点击拍照，可以记录和分享美照啦");
            GuideController.TryCompleteGuide(ConstGuideId.PHOTOGRAPH, 7);
        }
    }
}