using HighWayIot.Log4net;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace HighWayIot.Common.XmlConfig
{
    /// <summary>
    /// XML读写类
    /// </summary>
    public class XmlUtil
    {
        private static readonly Lazy<XmlUtil> lazy = new Lazy<XmlUtil>(() => new XmlUtil());

        public static XmlUtil Instance
        {
            get
            {
                return lazy.Value;
            }
        }

        /// <summary>
        /// XML读写实例
        /// </summary>
        XmlDocument xmlDocument = new XmlDocument();

        /// <summary>
        /// 运行时路径
        /// </summary>
        private string Path = System.Environment.CurrentDirectory;

        /// <summary>
        /// 设备配置读取
        /// </summary>
        /// <returns></returns>
        public List<string> ConfigReader()
        {
            List<string> list = new List<string>();

            xmlDocument.Load($"{Path}\\Configuration.xml");
            XmlNode root = xmlDocument.DocumentElement;
            XmlNode node = root.SelectSingleNode("DeviceConfig");
            foreach (XmlNode role in node)
            {
                XmlAttribute pageName = (XmlAttribute)role.Attributes.GetNamedItem("Name");
                list.Add(pageName.Value);
            }

            return list;
        }

        /// <summary>
        /// 初级目录InnerText配置读取
        /// </summary>
        /// <returns></returns>
        public string BaseInnerTextReader(string label)
        {
            xmlDocument.Load($"{Path}\\Configuration.xml");
            XmlNode root = xmlDocument.DocumentElement;
            XmlNode node = root.SelectSingleNode(label);
            string path = node.InnerText;
            return path;
        }

        public void ExportPathWriter(string path)
        {
            //xmlDocument.Load($"{Path}\\Configuration.xml");
            //XmlNode root = xmlDocument.DocumentElement;
            //XmlNode node = root.SelectSingleNode("ExportConfig");
            //node.Attributes["Path"].Value = path;
            //xmlDocument.Save($"{Path}\\Configuration.xml");

            // 参数验证
            if (string.IsNullOrWhiteSpace(path))
            {
                throw new ArgumentNullException(nameof(path), "导出路径不能为空");
            }

            try
            {
                // 加载XML文档
                xmlDocument.Load($"{Path}\\Configuration.xml");

                // 获取根节点
                XmlNode root = xmlDocument.DocumentElement ??
                    throw new InvalidOperationException("XML文档没有根元素");

                // 查找ExportConfig节点
                XmlNode node = root.SelectSingleNode("ExportConfig") ??
                    throw new InvalidOperationException("找不到ExportConfig节点");

                // 获取Path属性
                XmlAttribute pathAttribute = node.Attributes?["Path"] ??
                    throw new InvalidOperationException("ExportConfig节点没有Path属性");

                // 设置新值
                pathAttribute.Value = path;

                // 保存修改
                xmlDocument.Save($"{Path}\\Configuration.xml");
            }
            catch (Exception ex)
            {
                // 记录日志或处理特定异常
                LogHelper.Instance.Error("保存导出路径配置失败", ex);
            }
        }
    }


    public class RoleConfig
    {
        /// <summary>
        /// 页面名称
        /// </summary>
        public string PageName { get; set; }

        /// <summary>
        /// 规则编号
        /// </summary>
        public int RoleIndex { get; set; }
    }

    public class ExportPathConfig
    {
        public string ExportConfig { get; set; }

        public string Config { get; set; }
    }
}