using System.Collections.Generic;
using Gameplay.Area.Around;
using Gameplay.Common;
using Gameplay.Level;
using PhxhSDK;
using TGS;
using UnityEngine;
namespace Gameplay.Area.BoardView
{
    public class BoardViewData
    {
        public TGS.Territory tgsTerritory;
        public GameObject borderObj;
        public List<int> cellIndexList = new List<int>();

        private List<int> _cacheBoardSideIndexList = new List<int>();
        
        private static readonly int Prop_HintColor1 = Shader.PropertyToID("_Color");
        private static readonly int Prop_HintColor2 = Shader.PropertyToID("_SecondColor");

        public void Destroy(TerrainGridSystem tgs)
        {
            var tIndex = tgs.TerritoryGetIndex(tgsTerritory);
            tgs.TerritoryDestroy(tIndex);
            
            if (borderObj != null)
            {
                Object.Destroy(borderObj);
                borderObj = null;
            }

        }

        public void CreateBoardViewObj(TerrainGridSystem tgs, Color hintColor1, Color hintColor2)
        {
            tgsTerritory = tgs.TerritoryCreate(cellIndexList);
            borderObj = tgs.ForceDrawTerritoryDrawInteriorBorder(tgsTerritory, 0, 1, hintColor1, hintColor2);
            if (borderObj == null)
            {
                DebugUtil.LogError("GenerateBoard: borderObj is null: cellIndexList.count:" + cellIndexList.Count);
            }
            var getMaterial = borderObj.transform.GetChild(0).GetComponent<MeshRenderer>().material;
            getMaterial.SetColor(Prop_HintColor1, hintColor1);
            getMaterial.SetColor(Prop_HintColor2, hintColor2);
        }

        public void CreateBoardSideView(TerrainGridSystem tgs)
        {
            CalcLineBoard(tgs);
            var objPool = AreaManager.instance.moveAreaView.boardLineObjPool;
            for (int i = 0; i < _cacheBoardSideIndexList.Count; i++)
            {
                var boardIndex = _cacheBoardSideIndexList[i];
                objPool.CreateBoardAt(boardIndex);
            }
        }

        public void CreateLegionBattleBoardSideView(TerrainGridSystem tgs, BoardLineObjPool boardLineObjPool)
        {
            CalcLineBoard(tgs);
            for (int i = 0; i < _cacheBoardSideIndexList.Count; i++)
            {
                int boardIndex = _cacheBoardSideIndexList[i];
                boardLineObjPool.CreateBoardAt(boardIndex);
            }
        }

        public void CalcLineBoard(TerrainGridSystem tgs)
        {
            // 取出所有在边界上的点
            // 判断每个格子周围是否在这个区域内
            var cells = tgs.cells;
            // 先遍历一遍, 重置所有格子的状态
            for (int i = 0; i < cells.Count; i++)
            {
                var cell = cells[i];
                cell.isVisited = false;
                cell.isInArea = false;
            }

            // 标记在区域内的格子
            for (int i = 0; i < cellIndexList.Count; i++)
            {
                var checkCellIndex = cellIndexList[i];
                var cell = cells[checkCellIndex];
                cell.isInArea = true;
            }
            
            // 计算边界
            _cacheBoardSideIndexList.Clear();
            for (int i = 0; i < cellIndexList.Count; i++)
            {
                var checkCellIndex = cellIndexList[i];
                var cell = cells[checkCellIndex];
                if (_CheckAllAroundInArea(cell))
                {
                    continue;
                }
                // 计算六个指定相邻格子是否在区域内
                GetBoardSideMath(cell, 1, _cacheBoardSideIndexList, cellIndexList);
            }
        }
        
        public static void GetBoardSideMath(TGS.Cell centerCell,
            int stepCount, List<int> boardSideCellIndexList, List<int> areaCellIndexList)
        {
            var centerPos = centerCell.mathPointV3;
            var minX = centerPos.x - stepCount;
            var maxX = centerPos.x + stepCount;
            var minY = centerPos.y - stepCount;
            var maxY = centerPos.y + stepCount;
            var minZ = centerPos.z - stepCount;
            var maxZ = centerPos.z + stepCount;
            var cacheBoardIndex = 0;
            for (var x = minX; x <= maxX; ++x)
            {
                for (var y = minY; y <= maxY; ++y)
                {
                    if (x == centerPos.x && y == centerPos.y)
                    {
                        continue;
                    }
                    var z = -x - y;
                    if (z < minZ || z > maxZ)
                    {
                        continue;
                    }
                    cacheBoardIndex++;
                    var pos = new Vector3Int(x, y, z);
                    var calcIndex = AroundHelper.GetCellIndexV3(pos);
                    var centerCellIndex = centerCell.index;
                    if (calcIndex < 0)
                    {
                        // 说明是边界
                        var sideIndex = _GetBoardIndexBySide(centerCellIndex, cacheBoardIndex);
                        boardSideCellIndexList.Add(sideIndex);
                    }
                    else
                    {
                        var cell = AreaManager.instance.GetCellByIndex(calcIndex);
                        if (!cell.isInArea)
                        {
                            var sideIndex = _GetBoardIndexBySide(centerCellIndex, cacheBoardIndex);
                            boardSideCellIndexList.Add(sideIndex);
                        }
                    }
                }
            }
        }

        private static int _GetBoardIndexBySide(int centerCellIndex, int side)
        {
            return centerCellIndex * 10 + side;
        }
        
        private static bool _CheckAllAroundInArea(TGS.Cell checkCell)
        {
            var aroundCellList = checkCell.neighbours;
            if (aroundCellList.Count < 6)
            {
                // 边界格子
                return false;
            }
            for (int i = 0; i < aroundCellList.Count; i++)
            {
                var cell = aroundCellList[i];
                if (!cell.isInArea)
                {
                    return false;
                }
            }
            return true;
        }
    }
}