using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using LzFramework;
using UnityEngine.UI;
using DG.Tweening;

namespace DisComputer
{
    /**
     * @func 鼠标控制器
     * @author lz
     * @date 2020/05/28
     */
    public class MouseControl : Singleton<MouseControl>
    {


        //加载环形图片
        [SerializeField]
        private Texture2D loadCircle_tex;

        [SerializeField]
        private Color loadCircleColor;


        private bool isDelTemp = false;

        [HideInInspector]
        //是否进入聚焦状态
        public bool isFocuseState = false;
     
        // Update is called once per frame
        void Update()
        {

            if (MainControl.Instance.mainState != MainState.Active)
                return;

            if (isFocuseState)
                return;

            //缩放摄像机视距
            RollCameraView();

            if (tempGridGo)
            {
                //抓取
                if (Input.GetMouseButton(0))
                {
                    //Cursor.visible = false;
                    tempGridGo.transform.localPosition = CoordinateTrasition.ScreenPosToUguiPos(Input.mousePosition,canvas,true);
                    
                    //发射射线检测
                    SendRayToLoadPc();
                }

                if (Input.GetMouseButtonUp(0))
                {
                    //Cursor.visible = true;
                    isDelTemp = true;
                    Sequence sequence = DOTween.Sequence();
                    sequence.Append(tempGridGo.transform.DOLocalMove(selectGrid.initPos, 0.15f));
                    sequence.Append(tempGridGo.transform.DOScale(1.0f, 0.25f).SetEase(Ease.OutBack).SetDelay(0.1f));
                    sequence.OnComplete(()=> 
                    {
                        isDelTemp = false;
                        tempGridGo.SetActive(false);
                        DestroyImmediate(tempGridGo);
                        tempGridGo = null;
                        selectGrid.ShowSpareImg();
                    });
                }
            }else if(tempToolGo)
            {

            }
            else
            {
                //Cursor.visible = true;
            }


            if (tempToolGo)
            {
                //抓取
                if (Input.GetMouseButton(0))
                {
                    //Cursor.visible = false;
                    
                    tempToolGo.transform.localPosition = CoordinateTrasition.ScreenPosToUguiPos(Input.mousePosition, canvas, true);
                    
                    //发射射线检测
                    SendRayToUnloadPc();
                }

                if (Input.GetMouseButtonUp(0))
                {
                    //Cursor.visible = true;
                    isDelTemp = true;
                    Tween move = tempToolGo.transform.DOScale(0.0f, 0.15f);
                    move.SetEase(Ease.InSine);
                    move.OnComplete(() =>
                    {
                        isDelTemp = false;
                        tempToolGo.SetActive(false);
                        DestroyImmediate(tempToolGo);
                        tempToolGo = null;
                        selectTool.ResetTool();
                    });
                }
            }else if (tempGridGo)
            {

            }
            else
            {
                //Cursor.visible = true;
            }


        }



        /// <summary>
        /// 拉近摄像头
        /// </summary>
        void RollCameraView()
        {
      

            //缩小
            if(Input.GetAxis("Mouse ScrollWheel")<0)
            {
                Camera.main.fieldOfView += 2;
                if (Camera.main.fieldOfView >= 60)
                {
                    Camera.main.fieldOfView = 60;
                }
            }
            //放大
            if(Input.GetAxis("Mouse ScrollWheel") > 0)
            {
                Camera.main.fieldOfView -= 2;
                if(Camera.main.fieldOfView <= 10)
                {
                    Camera.main.fieldOfView = 10;
                }
            }
        }

        /// <summary>
        /// 恢复相机视距
        /// </summary>
        public void RewindCameraField()
        {
            Camera.main.DOFieldOfView(60,0.3f).SetEase(Ease.InSine);
        }

        
        //选择的零件
        private Grid selectGrid;
        private Canvas canvas;
        private GameObject tempGridGo;
        /// <summary>
        /// 设置抓取零件
        /// </summary>
        public  void SetDragSpare(Grid grid,System.Action hideSp)
        {
            if (isDelTemp|| tempGridGo != null || Input.GetMouseButton(1))
                return;

            hideSp?.Invoke();
          
                

            if (canvas == null)
            {
                canvas = GameObject.Find("UIRoot").GetComponent<Canvas>();
            }

            selectGrid = grid;
            tempGridGo = Instantiate(grid.spare_img.gameObject);
    
            tempGridGo.transform.SetParent(canvas.transform);
            tempGridGo.transform.localScale = new Vector3(1.5f, 1.5f, 1.5f);
            loading = tempGridGo.AddComponent<WorkLoading>();
            loading.InitLoading(loadCircle_tex, loadCircleColor);
            tempGridGo.SetActive(true);
           
        }

        /// <summary>
        /// 零件加载
        /// </summary>
        /// <param name="finish"></param>
        public void SpareLoading(System.Action finish)
        {
            if (isDelTemp)
                return;

            if (loading != null)
            {
                loading.UpdateLoading(() => {
                    finish?.Invoke();
                    tempGridGo = null;
                    selectGrid.CleraGird();
                    //Cursor.visible = true;

                    loading.CancelLoading();
                    loading = null;
                });
            }
        }


        //选择的工具
        private ToolItem selectTool;
        private GameObject tempToolGo;
        //进度显示
        private WorkLoading loading;
        /// <summary>
        /// 设置抓取工具
        /// </summary>
        /// <param name="item"></param>
        public  void SetDragTool(ToolItem item)
        {


            if (tempToolGo != null || Input.GetMouseButton(1))
            {
            
                return;
            }
               

            if(canvas == null)
            {
                canvas = GameObject.Find("UIRoot").GetComponent<Canvas>();
            }
            selectTool = item;
            tempToolGo = Instantiate(item.tool_img.gameObject);

            tempToolGo.transform.SetParent(canvas.transform);
            tempToolGo.transform.localScale = new Vector3(1.5f, 1.5f, 1.5f);
            loading = tempToolGo.AddComponent<WorkLoading>();
            loading.InitLoading(loadCircle_tex,loadCircleColor);

            tempToolGo.SetActive(true);
        }


        /// <summary>
        /// 工具加载
        /// </summary>
        /// <param name="finish"></param>
        public void ToolLoading(System.Action finish)
        {
            if (loading != null)
            {
                loading.UpdateLoading(()=> {
                    finish?.Invoke();
                    tempToolGo = null;
                    selectTool.ResetTool();
                    //Cursor.visible = true;
                    
                    loading.CancelLoading();
                    loading = null;
                });
            }
        }



        /// <summary>
        /// 重置
        /// </summary>
        public void ClearSelectTarget()
        {
            tempToolGo = null;
            tempGridGo = null;
            isFocuseState = false;
        }



        //零件检测层
        public LayerMask checkLayer;
        private RaycastHit hit;


        /// <summary>
        /// 发射射线检测安装电脑
        /// @reciever SpareItemControl
        /// </summary>
        private void SendRayToLoadPc()
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray,out hit,50,checkLayer.value))
            {
                selectGrid.chectSpareTag = hit.collider.gameObject.tag;

                hit.collider.gameObject.SendMessageUpwards("OnRecLoadColliderMsg", selectGrid, SendMessageOptions.DontRequireReceiver);
                hit.collider.gameObject.SendMessageUpwards("OnRecSpareColliderMessage", selectGrid,SendMessageOptions.DontRequireReceiver);

              
            }
            else
            {
                if(loading != null)
                {
                    loading.RewindLoading();
                }
            }
        }

        /// <summary>
        /// 发射射线检测拆除电脑
        /// @reciever SpareItemControl
        /// </summary>
        private void SendRayToUnloadPc()
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out hit, 50, checkLayer.value))
            {
                
                selectTool.chectSpareTag = hit.collider.gameObject.tag;

                hit.collider.gameObject.SendMessageUpwards("OnRecUnloadColliderMsg", selectTool, SendMessageOptions.DontRequireReceiver);

                hit.collider.gameObject.SendMessageUpwards("OnRecChildColliderMessage",selectTool, SendMessageOptions.DontRequireReceiver);
              

            }
            else
            {
                if (loading != null)
                {
                    loading.RewindLoading();
                }
            }
        }

    }
}