using System.Reflection;
using System.Text;
using System.Text.Json;

namespace OMS.NET.Common
{
    public sealed class ServerConfig
    {
        private Dictionary<string, string> _config = new();
        /// <summary>
        /// 连接数据库的连接字符串 default Empty
        /// 默认不带数据库名称
        /// </summary>
        public string ConnectionString => _config.TryGetValue("ConnectionString", out string? value)
        ? value
        : "";

        /// <summary>
        /// 数据库名称 default map_db
        /// </summary>
        public string DataBaseName => _config.TryGetValue("DataBaseName", out string? value)
        ? value
        : "map_db";

        /// <summary>
        /// 监听端口 default 8080
        /// </summary>
        public string ListenPort => _config.TryGetValue("ListenPort", out string? value)
        ? value
        : "8080";

        /// <summary>
        /// 是否开启匿名登录 default false
        /// </summary>
        public string AnonymousLogin => _config.TryGetValue("AnonymousLogin", out string? value)
        ? value
        : "false";

        /// <summary>
        /// 地图的背景图片位置，图像尺寸为：220px * 165px 最大为60kb 支持PNG和jpg类型的图片格式
        /// default ./map_img.png
        /// </summary>
        public string Img => _config.TryGetValue("ServerConfigImg", out string? value)
        ? value
        : "./map_img.png";

        /// <summary>
        /// key是唯一的,长度不限，格式k[a-Z0-9]，是客户端采用https://name.com/ + m/key 的方式快捷访问地图服务器的
        /// default k0
        /// </summary>
        public string Key => _config.TryGetValue("ServerConfigKey", out string? value)
        ? value
        : "k0";

        /// <summary>
        /// 服务器websocket链接的地址
        /// default 'ws://0.0.0.0:8080'
        /// </summary>
        public string Url => _config.TryGetValue("ServerConfigUrl", out string? value)
        ? value
        : "ws://0.0.0.0:8080";

        /// <summary>
        /// 服务器名称
        /// default 地图名称
        /// </summary>
        public string Name => _config.TryGetValue("ServerConfigName", out string? value)
        ? value
        : "地图名称";

        /// <summary>
        /// 服务器最大在线人数
        /// default 20
        /// </summary>
        public string MaxUser => _config.TryGetValue("ServerConfigMaxUser", out string? value)
        ? value
        : "20";

        /// <summary>
        /// 最大高度
        /// default 10000
        /// </summary>
        public string MaxHeight => _config.TryGetValue("ServerConfigMaxHeight", out string? value)
        ? value
        : "10000";

        /// <summary>
        /// 最小高度
        /// default -10000
        /// </summary>
        public string MinHeight => _config.TryGetValue("ServerConfigMinHeight", out string? value)
        ? value
        : "-10000";

        /// <summary>
        /// 最大宽度
        /// default 10000
        /// </summary>
        public string MaxWidth => _config.TryGetValue("ServerConfigMaxWidth", out string? value)
        ? value
        : "10000";

        /// <summary>
        /// 最小宽度
        /// default -10000
        /// </summary>
        public string MinWidth => _config.TryGetValue("ServerConfigMinWidth", out string? value)
        ? value
        : "-10000";

        /// <summary>
        /// 区域内横轴和纵轴的最小层级下（layer0）每像素移动量单位 纵轴单位
        /// default 1
        /// </summary>
        public string Unit1Y => _config.TryGetValue("ServerConfigUnit1Y", out string? value)
        ? value
        : "1";
        /// <summary>
        /// 区域内横轴和纵轴的最小层级下（layer0）每像素移动量单位 横轴单位
        /// default 1
        /// </summary>
        public string Unit1X => _config.TryGetValue("ServerConfigUnit1X", out string? value)
        ? value
        : "1";

        /// <summary>
        /// 打开地图时的默认中心点 x
        /// default 0
        /// </summary>
        public string P0X => _config.TryGetValue("ServerConfigP0X", out string? value)
        ? value
        : "0";
        /// <summary>
        /// 打开地图时的默认中心点 y
        /// default 0
        /// </summary>
        public string P0Y => _config.TryGetValue("ServerConfigP0Y", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 最大层级
        /// default 5
        /// </summary>
        public string MaxLayer => _config.TryGetValue("ServerConfigMaxLayer", out string? value)
        ? value
        : "default";

        /// <summary>
        /// 最小层级
        /// default 0
        /// </summary>
        public string MinLayer => _config.TryGetValue("ServerConfigMinLayer", out string? value)
        ? value
        : "default";

        /// <summary>
        /// 默认层级
        /// default 0
        /// </summary>
        public string DefaultLayer => _config.TryGetValue("ServerConfigDefaultLayer", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 默认缩放比例
        /// default 1
        /// </summary>
        public string ZoomAdd => _config.TryGetValue("ServerConfigZoomAdd", out string? value)
        ? value
        : "1";

        /// <summary>
        /// 表示是否启用额外的底图服务
        /// default false
        /// </summary>
        public string EnableBase => _config.TryGetValue("ServerConfigEnableBase", out string? value)
        ? value
        : "false";

        /// <summary>
        /// 默认x
        /// default 0
        /// </summary>
        public string DefaultX => _config.TryGetValue("ServerConfigDefaultX", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 默认y
        /// default 0
        /// </summary>
        public string DefaultY => _config.TryGetValue("ServerConfigDefaultY", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 屏幕默认分辨率x
        /// default 1920
        /// </summary>
        public string ResolutionX => _config.TryGetValue("ServerConfigResolutionX", out string? value)
        ? value
        : "1920";

        /// <summary>
        /// 屏幕默认分辨率y
        /// default 980
        /// </summary>
        public string ResolutionY => _config.TryGetValue("ServerConfigResolutionY", out string? value)
        ? value
        : "980";

        /// <summary>
        /// 最大底图缩放等级
        /// default 0
        /// </summary>
        public string MaxZoom => _config.TryGetValue("ServerConfigMaxZoom", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 最小底图缩放等级
        /// default 0
        /// </summary>
        public string MinZoom => _config.TryGetValue("ServerConfigMinZoom", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 默认底图缩放等级
        /// default 0
        /// </summary>
        public string DefaultZoom => _config.TryGetValue("ServerConfigDefaultZoom", out string? value)
        ? value
        : "0";

        /// <summary>
        /// 底图服务的服务器URL
        /// default empty
        /// </summary>
        public string BaseMapUrl => _config.TryGetValue("ServerConfigBaseMapUrl", out string? value)
        ? value
        : "";

        /// <summary>
        /// 底图的默认类型
        /// default empty
        /// </summary>
        public string ServerConfigBaseMapType => _config.TryGetValue("ServerConfigBaseMapType", out string? value)
        ? value
        : "realistic";

        public ServerConfig()
        {
            //do nothing,everything default 
        }
        public ServerConfig(string configPath)
        {
            if (!File.Exists(configPath))
            {
                throw new FileNotFoundException("服务器配置文件未找到, path: " + configPath);
            }
            foreach (var line in File.ReadLines(configPath))
            {
                // 忽略空行和注释行
                var trimmedLine = line.Trim();
                if (string.IsNullOrEmpty(trimmedLine) || trimmedLine.StartsWith("#"))
                {
                    continue;
                }

                // 去掉行尾的注释
                var commentIndex = trimmedLine.IndexOf('#');
                if (commentIndex > -1)
                {
                    trimmedLine = trimmedLine[..commentIndex].Trim();
                }

                // 查找冒号的位置
                var separatorIndex = trimmedLine.IndexOf(':');
                if (separatorIndex > -1)
                {
                    // 获取键和值，并去除冒号前后的空格
                    var key = trimmedLine[..separatorIndex].Trim();
                    var value = trimmedLine[(separatorIndex + 1)..].Trim();

                    // 将键值对添加到字典中
                    _config[key] = value;
                }
            }
        }

        public override string ToString()
        {
            StringBuilder stringBuilder = new();
            foreach (var key in _config.Keys)
            {
                stringBuilder.AppendLine($"{key}:{_config[key]}");
            }
            //通过属性访问
            // stringBuilder.AppendLine("====加载默认值后的配置项====");
            // Type type = this.GetType();
            // PropertyInfo[] properties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
            // foreach (PropertyInfo property in properties)
            // {
            //     if (property.CanRead && !property.CanWrite)
            //     {
            //         object? value = property.GetValue(this);
            //         stringBuilder.AppendLine($"{property.Name} = {value}");
            //     }
            // }
            return stringBuilder.ToString();
        }
    }
}