using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Random = UnityEngine.Random;

public class GameManager : MonoBehaviour
{
    public static GameManager ins;
    public bool start;
    public Camera mainCamera;
    public List<ItemData> itemDatas;
    public List<ItemData> itemDatas1;
    public List<ItemData> itemDatas2;
    public ItemObj seletObj;
    public Grid stopGrid;
    private Vector3 oldvec;
    public int index = 2;
    [SerializeField] private float scale=0.2f;
    private void Awake()
    {
        ins = this;
    }

    private void Start()
    {
   
    }

    public void ResetPack()
    {
        start = true;
        index = 2;
        var indexID = Random.Range(0, 4);
        switch (indexID)
        {
            case 0:
                ItemSystem.ins.InitItem(itemDatas);
                break;
            case 1:
                ItemSystem.ins.InitItem(itemDatas1);
                break;
            case 2:
                ItemSystem.ins.InitItem(itemDatas2);
                break;
            default:
                ItemSystem.ins.InitItem(itemDatas);
                break;
        }
        MapManager.ins.PlayBoxOpen();
    }

    public void PackEvent()
    {
        index--;
        if (index<=0)
        {
            bool win = true;
            foreach (var item in ItemSystem.ins.itemObjs)
            {
                if (item.type==GridType.wait)
                {
                    win = false;
                }
            }

            if (win)
            {
                MainPanel.ins.Win();
            }
            else
            {
                MainPanel.ins.Lose();
            }

            start = false;
            MapManager.ins.PlayBoxClose();
            return;
        }
        else
        {
            MapManager.ins.PlayBoxClose(()=>
            {
                MapManager.ins.PlayBoxOpen();
            });
        }

        ItemSystem.ins.PackItem();
    }
    private void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            oldvec = Input.mousePosition;
        }
        if (Input.GetMouseButtonUp(0))
        {
            if (seletObj==null)
            {
                return;
            }
            if (MapManager.ins.openSave(stopGrid,seletObj))
            {
                foreach (var grid in seletObj._grids)
                {
                    grid.item = null;
                }

                seletObj.startGrid = stopGrid;
                ItemSystem.ins.GetGridsRest(seletObj.startGrid, seletObj);
            }
            ItemSystem.ins.SetPosition(seletObj, seletObj.startGrid);
            stopGrid = null;
            seletObj = null;
            MapManager.ins.ResetAnimation();
        }

        if (seletObj!=null)
        {
            Ray rays = mainCamera.ScreenPointToRay(Input.mousePosition);
            RaycastHit hits;
            if (Physics.Raycast(rays, out hits))
            {
                //射线检测，第三个参数可根据需求设置或不设置，具体看api;
                Physics.Raycast(rays, out hits, 500000);
                Vector3 mousePos = hits.point+seletObj.mouseDev;
                if (MapManager.ins.GetRegionGridType(mousePos,out var type))
                {
                    MapManager.ins.RegionGrid(mousePos, type, out var grid);
                    Debug.LogError(grid.X+" "+grid.Y);
                    if (stopGrid!=grid)
                    {
                        stopGrid = grid;
                        MapManager.ins.RegionGridBack(stopGrid, seletObj.itemSize.x+stopGrid.X, seletObj.itemSize.y+stopGrid.Y);
                    }
                }
            }
        }
        if (Input.GetMouseButton(0) && seletObj!=null&& start)
        {
            Ray ray = mainCamera.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit;
            //射线检测，第三个参数可根据需求设置或不设置，具体看api;
            Physics.Raycast(ray, out hit, 500000);
            Vector3 mousePos = hit.point;
            seletObj.transform.position = mousePos;
        }

    }
}