using System;
using System.Collections.Generic;
using System.IO;
using System.Numerics;
using AibisDream.Utility;
using UnityEditor.Rendering;
using UnityEngine;
using Yarn.Unity;

namespace AibisDream
{
    public static class BlockPuzzleKit
    {
        /// <summary>
        /// 保存单个 BlockShapeData 到文件，确保 Key 唯一（如果 Key 已存在则更新，不存在则添加）
        /// </summary>
        /// <param name="data">要保存的数据</param>
        /// <param name="key">数据的键（用于字典存储）</param>
        /// <param name="path">保存路径，如果为空则使用默认路径</param>
        public static void SaveBlockShapeData(BlockShapeData data, string key, string path = null)
        {
            if (string.IsNullOrEmpty(path))
            {
                path = ConstRef.BlockShapeDataPath;
            }

            // 确保目录存在
            string directory = Path.GetDirectoryName(path);
            if (!string.IsNullOrEmpty(directory) && !Directory.Exists(directory))
            {
                Directory.CreateDirectory(directory);
            }

            // 读取现有字典（如果文件存在）
            Dictionary<string, BlockShapeData> dataDict;
            if (File.Exists(path))
            {
                try
                {
                    dataDict = JsonUtil.ReadBeanDict<BlockShapeData>(path) ?? new Dictionary<string, BlockShapeData>();
                }
                catch (Exception e)
                {
                    Debug.LogWarning($"读取现有 BlockShapeData 文件失败，将创建新文件: {e.Message}");
                    dataDict = new Dictionary<string, BlockShapeData>();
                }
            }
            else
            {
                dataDict = new Dictionary<string, BlockShapeData>();
            }

            // 更新或添加数据（确保 Key 唯一）
            dataDict[key] = data;

            // 保存整个字典
            JsonUtil.SaveBean(dataDict, path);
        }


        /// <summary>
        /// 从文件加载单个 BlockShapeData
        /// </summary>
        /// <param name="key">数据的键</param>
        /// <param name="path">文件路径，如果为空则使用默认路径</param>
        /// <param name="data">加载的数据</param>
        /// <returns>是否加载成功</returns>
        public static bool TryLoadBlockShapeData(string key, out BlockShapeData data, string path = null)
        {
            if (string.IsNullOrEmpty(path))
            {
                path = ConstRef.BlockShapeDataPath;
            }

            try
            {
                if (!File.Exists(path))
                {
                    data = default;
                    return false;
                }

                var dict = JsonUtil.ReadBeanDict<BlockShapeData>(path);
                if (dict != null && dict.ContainsKey(key))
                {
                    data = dict[key];
                    return true;
                }

                data = default;
                return false;
            }
            catch (Exception e)
            {
                Debug.LogError($"加载 BlockShapeData 失败: {e.Message}");
                data = default;
                return false;
            }
        }

        /// <summary>
        /// 从文件加载单个 BlockPuzzleData
        /// </summary>
        /// <param name="key">数据的键</param>
        /// <param name="data">加载的数据</param>
        /// <returns>是否加载成功</returns>
        public static bool TryLoadBlockPuzzleData(string key, out BlockPuzzleData data)
        {
            var path = ConstRef.BlockPuzzleDataPath;
            // 加载配置
            try
            {
                if (!File.Exists(path))
                {
                    data = default;
                    return false;
                }

                var dict = JsonUtil.ReadBeanDict<BlockPuzzleData>(path);
                if (dict != null && dict.ContainsKey(key))
                {
                    data = dict[key];
                    return true;
                }

                data = default;
                return false;
            }
            catch (Exception e)
            {
                Debug.LogError($"加载 BlockPuzzleData 失败: {e.Message}");
                data = default;
                return false;
            }
        }

        /// <summary>
        /// 保存单个 BlockPuzzleData 到文件，确保 Key 唯一（如果 Key 已存在则更新，不存在则添加）
        /// </summary>
        /// <param name="data">要保存的数据</param>
        /// <param name="key">数据的键（用于字典存储）</param>
        /// <param name="path">保存路径，如果为空则使用默认路径</param>
        public static void SaveBlockPuzzleData(BlockPuzzleData data, string key, string path = null)
        {
            if (string.IsNullOrEmpty(path))
            {
                path = ConstRef.BlockPuzzleDataPath;
            }

            // 确保目录存在
            string directory = Path.GetDirectoryName(path);
            if (!string.IsNullOrEmpty(directory) && !Directory.Exists(directory))
            {
                Directory.CreateDirectory(directory);
            }

            // 读取现有字典（如果文件存在）
            Dictionary<string, BlockPuzzleData> dataDict;
            if (File.Exists(path))
            {
                try
                {
                    dataDict = JsonUtil.ReadBeanDict<BlockPuzzleData>(path) ?? new Dictionary<string, BlockPuzzleData>();
                }
                catch (Exception e)
                {
                    Debug.LogWarning($"读取现有 BlockPuzzleData 文件失败，将创建新文件: {e.Message}");
                    dataDict = new Dictionary<string, BlockPuzzleData>();
                }
            }
            else
            {
                dataDict = new Dictionary<string, BlockPuzzleData>();
            }

            // 更新或添加数据（确保 Key 唯一）
            dataDict[key] = data;

            // 保存整个字典
            JsonUtil.SaveBean(dataDict, path);
        }
    }

    public static class BlockPuzzleYarnCommand
    {
        [YarnCommand("init_block_puzzle")]
        public static void InitBlockPuzzle(string puzzleName)
        {
            if (BlockPuzzleKit.TryLoadBlockPuzzleData(puzzleName, out var blockPuzzleData))
            {
                BlockPuzzleSystem.Instance.Initialize(blockPuzzleData);
            }
            else
            {
                Debug.LogError($"加载 BlockPuzzleData 失败: {puzzleName}");
            }
        }

        [YarnCommand("clear_block_puzzle")]
        public static void ClearBlockPuzzle()
        {
            BlockPuzzleSystem.Instance.ClearGame();
        }

        [YarnCommand("reset_block_puzzle")]
        public static void ResetBlockPuzzle()
        {
            BlockPuzzleSystem.Instance.ResetGame();
        }
    }

    [Serializable]
    public struct BlockPuzzleData
    {
        public string puzzleName;
        public int gridWidth;
        public int gridHeight;
        public float cellSize;
        // 网格内Shape
        public GridShapeData[] gridShapeDataInfos;
        // 图形货架内Shape
        public RackDataInfo[] shapeRackDataInfos;
        // 验证器
        public string validatorName;
    }

    [Serializable]
    public struct GridShapeData
    {
        public string shapeKey;
        public Vector2Int rootCell;
        public RotationAngle rotationAngle;
        public bool isDraggable;
    }

    [Serializable]
    public struct BlockShapeData
    {
        public int shapeId;
        public string shapeName;
        public int width;
        public int height;
        public float cellSize;
        public string originalPatternStr;
        public string spritePath;

        [Header("额外限制")]
        public bool extraLimits;
        public Vector2Int rootLimit;
        public RotationAngle rotationAngleLimit;
    }

    [Serializable]
    public struct RackDataInfo
    {
        public string key;
        public int count;
    }
}