using System;
using System.Collections.Generic;
using Sirenix.OdinInspector;
using UnityEngine;
using Newtonsoft.Json;
using UnityEngine.Serialization;

[Serializable]
public class MapData
{
    public enum EnvironmentType
    {
        [LabelText("平原")]
        Plain = 0,
        [LabelText("山地")]
        Mountain,
        [LabelText("草原")]
        Grassland,
        [LabelText("林地")]
        Forest,
        [LabelText("雪地")]
        Snow,
        [LabelText("泥地")]
        MuddyLand,
        [LabelText("戈壁")]
        Gobi,
        [LabelText("沙漠")]
        Desert,
        [LabelText("高原")]
        Plateau
    }

    [Serializable]
    public class Region
    {
        public List<int> positions = new ();
    }
    
    [ReadOnly]
    public int width;
    [ReadOnly]
    public int height;
    public EnvironmentType environmentType;
    [HideInInspector]
    public List<MapBlockData> BlocksData = new();
    [HideInInspector]
    public List<Region> regions = new();

    [HideInInspector]
    public Vector2Int initialCameraPosition;


    public MapData()
    {
        
    }
    
    public MapData(int id,string name, int width, int height, EnvironmentType envType = EnvironmentType.Plain)
    {
        this.width = width;
        this.height = height;
        environmentType = envType;
        ResetBlocks();
    }

    public void ResetBlocks()
    {
        var count = width * height;
        BlocksData.Clear();
        for (var i = 0; i < count; i++)
        {
            BlocksData.Add(new MapBlockData());
        }
    }

    public void SetBlockData(Vector2Int position, MapBlockData blockData)
    {
        if (CheckPosition(position))
        {
            BlocksData[position.x * width + position.y] = blockData;
        }
    }

    public MapBlockData GetBlockData(int cellIndex)
    {
        if (cellIndex < 0 || cellIndex >= BlocksData.Count)
        {
            DebugUtil.LogError("GetBlockData failed, position:{0} is invalid!", cellIndex);
            return null;
        }
        return BlocksData[cellIndex];
    }

    public bool CheckPosition(Vector2Int position)
    {
        return position.x >= 0 && position.y >= 0;
    }

    //为了和TGS中坐标定义一致，格子的坐标采用X朝上，Y朝右
    public int Position2BlockIndex(Vector2Int position)
    {
        return position.x * width + position.y;
    }

    //为了和TGS中坐标定义一致，格子的坐标采用X朝上，Y朝右
    public Vector2Int BlockIndex2Position(int blockIndex)
    {
        return new Vector2Int(blockIndex / width, blockIndex % width);
    }

    public void SetBlockTerrainType(int blockIndex, int terrainTypeIndex)
    {
        if (blockIndex >= 0 && blockIndex < BlocksData.Count)
        {
            BlocksData[blockIndex].TerrainTypeIndex = terrainTypeIndex;
        }
    }

    // public void AddRegion(Region area, int newRegionId = -1)
    // {
    //     
    //     if (!CheckRegion(area))
    //     {
    //         DebugUtil.LogError("{0} AddPreparingArea failed, area:{1} is invalid!", GetType().Name, area);
    //     }
    //     var regionId = GenerateRegionId();
    //     if (_regions.ContainsKey(newRegionId) && newRegionId >= 0)
    //     {
    //         _regions[newRegionId] = area;
    //     }
    //     else
    //     {
    //         _regions.Add(regionId, area);
    //     }
    //
    // }


    public Region GetRegion(int regionId)
    {
        if (IsRegionExist(regionId))
            return regions[regionId];
        return null;
        // if (_regions.TryGetValue(regionId, out var region))
        // {
        //     return region;
        // }
        // else
        // {
        //     DebugUtil.LogError("{0} GetPreparingArea failed, id:{1} not exists!", GetType().Name, regionId);
        //     return null;
        // }
    }

    // public List<Region> GetAllRegions()
    // {
    //     return _regions;
    // }

    public void RemoveRegion(int regionId)
    {
        if (!IsRegionExist(regionId))
            regions.RemoveAt(regionId);
        // if (_regions.ContainsKey(regionId))
        // {
        //     _regions.Remove(regionId);
        // }
        // else
        // {
        //     DebugUtil.LogError("{0} RemovePreparingArea failed, id:{1} not exists!",GetType().Name, regionId);
        // }
    }

    public void RemoveAllRegion()
    {
        regions.Clear();
    }

    // private int GenerateRegionId()
    // {
    //     var max = _regions.Count;
    //     for (var i = 0; i < max; i++)
    //     {
    //         if (!_regions.ContainsKey(i))
    //         {
    //             return i;
    //         }
    //     }
    //     return max;
    // }

    // private bool CheckRegion(Region area)
    // {
    //     for (var i = 0; i < area.positions.Count; i++)
    //     {
    //         if (!CheckPosition(area.positions[i]))
    //         {
    //             return false;
    //         }
    //     }
    //     return true;
    // }

    public bool IsRegionExist(int regionIndex)
    {
        return regionIndex >= 0 && regionIndex < regions.Count;
    }
}