using System.Collections.Generic;
using UnityEngine;
namespace Gameplay.LegionBattle.View
{
    public class FightLineArea
    {
        public List<FightLineCell> cellList = new List<FightLineCell>(1600);
        
        public bool isMainArea = false;

        public FightLine finalLine = new FightLine();
        
        public void AddCell(FightLineCell cell)
        {
            cellList.Add(cell);
            if (cell.isMainCell)
            {
                isMainArea = true;
            }
        }

        public void ResetArea(FightLineArea newArea)
        {
            cellList.Clear();
            cellList.AddRange(newArea.cellList);
        }

        public void ReverseArea()
        {
            for (int i = 0; i < cellList.Count; i++)
            {
                var cell = cellList[i];
                if (cell.standValue == -1)
                {
                    cell.standValue = 1;
                } else if (cell.standValue == 1)
                {
                    cell.standValue = -1;
                }
            }
        }

        public void AddArea(FightLineArea area)
        {
            cellList.AddRange(area.cellList);
        }

        public void CalcBoarder()
        {
            // 计算边界的cells
            for (int i = 0; i < cellList.Count; i++)
            {
                var cell = cellList[i];
                if (cell.CheckIsCenter())
                {
                    cellList.RemoveAt(i);
                    i--;
                }
                cell.CalcBoardPos();
                cell.isVisited = false;
            }
        }

        public void ReSortBoardCells()
        {
            _ReSortCells();
        }

        private void _ReSortCells()
        {
            finalLine.Clear();
            var workCell = cellList[^1];
            cellList.RemoveAt(cellList.Count - 1);
            finalLine.AddCell(workCell);

            var searchNext = finalLine.SearchNext(cellList, out int outIndex);
            while (searchNext != null)
            {
                cellList.RemoveAt(outIndex);
                finalLine.AddCell(searchNext);
                searchNext = finalLine.SearchNext(cellList, out outIndex);
            }
        }

        private List<GameObject> _boardObjs = new List<GameObject>();
        public void CreateBoardView(GameObject sampleObj, Transform parent)
        {
            // 先匹配个数
            if (_boardObjs.Count != cellList.Count)
            {
                if (_boardObjs.Count > cellList.Count)
                {
                    // 删除多余的
                    for (int i = _boardObjs.Count - 1; i >= cellList.Count; i--)
                    {
                        var obj = _boardObjs[i];
                        Object.Destroy(obj);
                        _boardObjs.RemoveAt(i);
                    }
                }
                else
                {
                    // 补充
                    for (int i = _boardObjs.Count; i < cellList.Count; i++)
                    {
                        var obj = Object.Instantiate(sampleObj, parent);
                        _boardObjs.Add(obj);
                    }
                }
            }
            
            for (int i = 0; i < cellList.Count; i++)
            {
                var cell = cellList[i];
                var obj = _boardObjs[i];
                obj.transform.localPosition = new Vector3(cell.pos.x, cell.pos.y, 0);
            }
        }
    }
}