using UnityEngine;
using UnityEngine.UI;
using QFramework;
using ChivaXR;
using ChivaXR.Op;
using Google.Protobuf.WellKnownTypes;
using System.Collections.Generic;

namespace QFramework
{
    public class ArrowTipsPanelData : UIPanelData
    {
    }
    public partial class ArrowTipsPanel : UIPanel
    {
        private Transform targetPoint;
        private Camera viewCamera;
        private OpTrigger_ToolPack opTrigger_ToolPack;

        //多区域提示功能
        private List<OpTrigger_ToolPack> opTrigger_ToolPacks = new List<OpTrigger_ToolPack>();
        private Dictionary<OpTrigger_ToolPack, TipsFreeIconItem> dic_TipsFreeIconItems = new Dictionary<OpTrigger_ToolPack, TipsFreeIconItem>();
        private List<TipsFreeIconItem> tipsFreeIconItemsPool = new List<TipsFreeIconItem>();

        public Camera ViewCamera
        {
            get
            {
                if (viewCamera == null)
                {
                    viewCamera = RoamCameraController.Instance.GetComponent<Camera>();
                }
                return viewCamera;
            }
        }
        protected override void ProcessMsg(int eventId, QMsg msg)
        {
            throw new System.NotImplementedException();
        }

        private Canvas m_Canvas;
        private CanvasScaler m_CanvasScaler;
        protected override void OnInit(IUIData uiData = null)
        {
            mData = uiData as ArrowTipsPanelData ?? new ArrowTipsPanelData();
            TipsIcon.gameObject.SetActive(false);
            OutViewIcon.gameObject.SetActive(false);

            // please add init code here
            if (viewCamera == null)
            {
                Debug.Log("请使用RoamCameraController控制脚本");
            }
            m_Canvas = UIRoot.Instance.GetComponent<Canvas>();
            m_CanvasScaler = m_Canvas.GetComponent<CanvasScaler>();

            if (OperateSetting.Instance.m_CurrentOperationMode == OperationMode.Practice
                || OperateSetting.Instance.m_CurrentOperationMode == OperationMode.Exam)
            {
                ProcessManagement.Instance.preprocessFnishedEvent  += PreProcessFinished;
                ProcessManagement.Instance.processFinishEvent += FinishedProcess;
            }
        }

        public void LateUpdate()
        {
            if (OperateSetting.Instance.m_CurrentOperationMode == OperationMode.Practice
                || OperateSetting.Instance.m_CurrentOperationMode == OperationMode.Exam)
            {
                CheckOperationHint();
            }

            if (OperateSetting.Instance.m_CurrentOperationMode == OperationMode.FreeParctice
           || OperateSetting.Instance.m_CurrentOperationMode == OperationMode.FreeParctice)
            {
                CheckFreeOperationHint();
            }
        }
        public void AddProcessElement(ProcessElement process, string processName = null) 
        {
            PB_OpData pbOpData = process.GetComponent<PB_OpData>();
            if (OperationManager.Instance.GetOpData(pbOpData.opData.operationDataName) == null)
            {
                return;
            }
            OpTrigger_ToolPack opTrigger_ToolPack =
                OperationManager.Instance.GetOpData(pbOpData.opData.operationDataName).gameObject.GetComponent<OpTrigger_ToolPack>();

            if (opTrigger_ToolPack == null)
            {
                return;
            };

            if (!dic_TipsFreeIconItems.ContainsKey(opTrigger_ToolPack))
            {
                dic_TipsFreeIconItems.Add(opTrigger_ToolPack, GetTipsFreeIconItem());
                dic_TipsFreeIconItems[opTrigger_ToolPack].TipsFreeInfo.text = processName;
            }
        }
        public void RemoveProcessElement(ProcessElement process)
        {
            PB_OpData pbOpData = process.GetComponent<PB_OpData>();
            if (OperationManager.Instance.GetOpData(pbOpData.opData.operationDataName) == null)
            {
                return;
            }
            OpTrigger_ToolPack opTrigger_ToolPack =
                OperationManager.Instance.GetOpData(pbOpData.opData.operationDataName).gameObject.GetComponent<OpTrigger_ToolPack>();

            if (opTrigger_ToolPack == null)
            {
                return;
            };

            if (dic_TipsFreeIconItems.ContainsKey(opTrigger_ToolPack))
            {
                ReleaseTipsFreeIconItem(dic_TipsFreeIconItems[opTrigger_ToolPack]);

                dic_TipsFreeIconItems.Remove(opTrigger_ToolPack);
            }
        }

        public TipsFreeIconItem GetTipsFreeIconItem()
        {
            if (tipsFreeIconItemsPool.Count == 0)
            {
                TipsFreeIconItem tip = GameObject.Instantiate(TipsFreeIconItem).GetComponent<TipsFreeIconItem>();
                tip.transform.parent = TipsGroup.transform;
                tip.transform.localScale = Vector3.one;
                tip.gameObject.SetActive(true);
                return tip;
            }
            else
            {
                TipsFreeIconItem tip = tipsFreeIconItemsPool[0];
                tipsFreeIconItemsPool.Remove(tip);
                tip.gameObject.SetActive(true);
                return tip;
            }
        }
        public void ReleaseTipsFreeIconItem(TipsFreeIconItem tip)
        {
            tip.gameObject.SetActive(false);
            tip.TipsFreeInfo.text = "";
            tipsFreeIconItemsPool.Add(tip);
        }

        private void CheckFreeOperationHint()
        {
            if (dic_TipsFreeIconItems.Count == 0) return;

            foreach (var item in dic_TipsFreeIconItems)
            {
                Vector3 viewPos = ViewCamera.WorldToScreenPoint(item.Key.targetObjs[0].transform.position);

                item.Value.GetRectTransform().anchoredPosition = new Vector3(GetFixed(viewPos.x), GetFixed(viewPos.y));

                float distance = Vector3.Distance(item.Key.targetObjs[0].transform.position, ViewCamera.transform.position);
                item.Value.TipsFreeDistanceInfo.text = distance.ToString("0.00") + "m";
            }
        }

        /// <summary>
        /// 检测执行线性流程提示
        /// </summary>
        private void CheckOperationHint()
        {
            if (targetPoint == null || opTrigger_ToolPack == null) return;

            if (opTrigger_ToolPack.OperationStatus != OperationDataStatus.Listening)
            {
                opTrigger_ToolPack = null;
                Clear();
                return;
            }

            if (!OperateSetting.Instance.ToolPackUILogic.GetHint() || !opTrigger_ToolPack.IsGetRightTool())
            {
                TipsIcon.gameObject.SetActive(false);
                OutViewIcon.gameObject.SetActive(false);
                return;
            }

            Vector3 viewPos = ViewCamera.WorldToScreenPoint(targetPoint.position);

            TipsIcon.rectTransform.anchoredPosition = new Vector3(GetFixed(viewPos.x), GetFixed(viewPos.y));
            ArrowController();

            float distance = Vector3.Distance(targetPoint.position, ViewCamera.transform.position);
            DistanceInfo.text = distance.ToString("0.00") + "m";

            if (distance < 1)
            {
                TipsIcon.gameObject.SetActive(false);
            }
            else if (!OutViewIcon.gameObject.activeSelf)
            {
                TipsIcon.gameObject.SetActive(true);
            }
        }

        /// <summary>
        /// 前置步骤结束
        /// </summary>
        /// <param name="processElement"></param>
        public void PreProcessFinished(ProcessElement processElement)
        {
            if (processElement.GetComponent<PB_OpData>() != null)
            {
                PB_OpData pbOpData = processElement.GetComponent<PB_OpData>();

                if (OperationManager.Instance.GetOpData(pbOpData.opData.operationDataName) == null)
                {
                    return;
                }

                opTrigger_ToolPack =
                    OperationManager.Instance.GetOpData(pbOpData.opData.operationDataName).gameObject.GetComponent<OpTrigger_ToolPack>();
            }
            else
            {
                PB_OpDataGroup pbOpData = processElement.GetComponent<PB_OpDataGroup>();
                opTrigger_ToolPack =
                    OperationManager.Instance.GetOpData(pbOpData.opDataInfos[0].operationDataName).gameObject.GetComponent<OpTrigger_ToolPack>();
            }

            if (opTrigger_ToolPack != null)
            {
                if (opTrigger_ToolPack.targetObjs.Count > 0)
                {
                    InitTarget(opTrigger_ToolPack.targetObjs[0].transform);
                }
            }
            else
            {
                Clear();
            }
        }

        public void FinishedProcess()
        {
            Clear();
        }

        //Screen坐标值适配Canvas画布
        public float GetFixed(float value)
        {
            if (m_CanvasScaler.matchWidthOrHeight == 0)
                //匹配宽度时仅按照宽度计算
                return value * m_CanvasScaler.referenceResolution.x / Screen.width;
            else
                //匹配高度时仅按照高度计算
                return value * m_CanvasScaler.referenceResolution.y / Screen.height;
        }

        /// <summary>
        /// 初始化提示目标
        /// </summary>
        /// <param name="target"></param>
        public void InitTarget(Transform target)
        {
            targetPoint = target;
            if (targetPoint.Find("HintPoint") != null)
            {
                targetPoint = targetPoint.Find("HintPoint");
            };
            Debug.Log(targetPoint.name);
        }

        public void Clear()
        {
            targetPoint = null;
            TipsIcon.gameObject.SetActive(false);
            OutViewIcon.gameObject.SetActive(false);
            //Hide();
        }

        protected override void OnOpen(IUIData uiData = null)
        {
        }

        protected override void OnShow()
        {
        }

        protected override void OnHide()
        {
        }

        protected override void OnClose()
        {
        }

        private float targetAngle;
        /// <summary>
        /// 箭头控制提示控制
        /// </summary>
        public void ArrowController()
        {
            if (targetPoint == null) return;

            //物体转化为摄像机屏幕坐标
            Vector3 screenPointInV3 = ViewCamera.WorldToScreenPoint(targetPoint.position);
            Vector2 screenPoint = new Vector2(screenPointInV3.x, screenPointInV3.y);

            float r = 350;
            float R = 500;
            Vector3 center = Vector3.zero;
            float hudu = (targetAngle / 180) * Mathf.PI;
            float xx = center.x + r * Mathf.Cos(hudu);
            float yy = center.y + R * Mathf.Sin(hudu);
            Vector3 pos = new Vector3(-yy, xx, 0);

            if (screenPointInV3.z <= 0)      //物体在摄像机后方
            {
                Vector3 screenCenterPos = new Vector3(ViewCamera.pixelWidth / 2, ViewCamera.pixelHeight / 2, 0);

                float angle = 90;
                if (Vector3.Cross(Vector3.up, (screenPointInV3 - screenCenterPos)).z < 0)
                {
                    angle = -angle;
                }
                targetAngle = -angle;

                TipsIcon.gameObject.SetActive(false);

                if (!OutViewIcon.gameObject.activeSelf)
                {
                    OutViewIcon.gameObject.SetActive(true);
                }

                OutViewIcon.rectTransform.anchoredPosition = pos;
                DirRoot.rotation = Quaternion.Euler(0, 0, targetAngle);
            }
            else if (!ViewCamera.pixelRect.Contains(screenPoint)) //摄像机正面且不在画面中
            {
                Vector3 screenCenterPos = new Vector3(ViewCamera.pixelWidth / 2, ViewCamera.pixelHeight / 2, 0);
                float angle = Vector3.Angle(Vector3.up, (screenPointInV3 - screenCenterPos));
                if (Vector3.Cross(Vector3.up, (screenPointInV3 - screenCenterPos)).z > 0)
                {
                    angle = -angle;
                }
                targetAngle = -angle;

                if (!OutViewIcon.gameObject.activeSelf)
                {
                    OutViewIcon.gameObject.SetActive(true);
                    OutViewIcon.rectTransform.anchoredPosition = pos;
                    DirRoot.rotation = Quaternion.Euler(0, 0, targetAngle);
                }

                //不同侧不做插值移动
                if (OutViewIcon.rectTransform.anchoredPosition.x * pos.x < 0 || OutViewIcon.rectTransform.anchoredPosition.y * pos.y < 0)
                {
                    OutViewIcon.rectTransform.anchoredPosition = pos;
                    DirRoot.rotation = Quaternion.Euler(0, 0, targetAngle);
                }

                OutViewIcon.rectTransform.anchoredPosition = Vector3.Lerp(OutViewIcon.rectTransform.anchoredPosition, pos, 0.2f);
            }
            else
            {
                OutViewIcon.gameObject.SetActive(false);
                TipsIcon.gameObject.SetActive(true);
            }
            DirRoot.rotation = Quaternion.Lerp(DirRoot.rotation, Quaternion.Euler(0, 0, targetAngle), 0.2f);
        }
    }
}