using Abp.Logging;

using System.Data;
using System.Xml;

namespace VberZero.Tools.FileHelpers;

/// <summary>
/// XML形式的字符串、XML文江转换成DataSet、DataTable格式
/// </summary>
public static class XmlToData
{
    /**//// <summary>

    /// 将Xml内容字符串转换成DataSet对象
    /// </summary>
    /// <param name="xmlStr">Xml内容字符串</param>
    /// <returns>DataSet对象</returns>
    public static DataSet CXmlToDataSet(this string xmlStr)
    {
        if (!string.IsNullOrEmpty(xmlStr))
        {
            StringReader StrStream = null;
            XmlTextReader Xmlns = null;
            try
            {
                DataSet ds = new DataSet();
                //读取字符串中的信息
                StrStream = new StringReader(xmlStr);
                //获取StrStream中的数据
                Xmlns = new XmlTextReader(StrStream);
                //ds获取Xmlns中的数据
                ds.ReadXml(Xmlns);
                return ds;
            }
            catch (Exception e)
            {
                LogHelper.LogException(e);
            }
            finally
            {
                //释放资源
                if (Xmlns != null)
                {
                    Xmlns.Close();
                    StrStream.Close();
                    StrStream.Dispose();
                }
            }
        }
        return null;
    }

    /**//// <summary>

    /// 将Xml字符串转换成DataTable对象
    /// </summary>
    /// <param name="xmlStr">Xml字符串</param>
    /// <param name="tableIndex">Table表索引</param>
    /// <returns>DataTable对象</returns>
    public static DataTable CXmlToDataTable(this string xmlStr, int tableIndex)
    {
        return CXmlToDataSet(xmlStr).Tables[tableIndex];
    }

    /**//// <summary>

    /// 将Xml字符串转换成DataTable对象
    /// </summary>
    /// <param name="xmlStr">Xml字符串</param>
    /// <returns>DataTable对象</returns>
    public static DataTable CXmlToDataTable(this string xmlStr)
    {
        return CXmlToDataSet(xmlStr).Tables[0];
    }

    /**//// <summary>

    /// 读取Xml文件信息,并转换成DataSet对象
    /// </summary>
    /// <remarks>
    /// DataSet ds = new DataSet();
    /// ds = CXmlFileToDataSet("C:/XML/upload.xml");
    /// </remarks>
    /// <param name="xmlFilePath">Xml文件地址(绝对路径)</param>
    /// <returns>DataSet对象</returns>
    public static DataSet CXmlFileToDataSet(this string xmlFilePath)
    {
        if (!string.IsNullOrEmpty(xmlFilePath))
        {
            //string path = HttpContext.Current.Server.MapPath(xmlFilePath);
            string path = xmlFilePath;
            StringReader StrStream = null;
            XmlTextReader Xmlns = null;
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                //根据地址加载Xml文件
                xmlDoc.Load(path);

                DataSet ds = new DataSet();
                //读取文件中的字符流
                StrStream = new StringReader(xmlDoc.InnerXml);
                //获取StrStream中的数据
                Xmlns = new XmlTextReader(StrStream);
                //ds获取Xmlns中的数据
                ds.ReadXml(Xmlns);
                return ds;
            }
            catch (Exception e)
            {
                LogHelper.LogException(e);
            }
            finally
            {
                //释放资源
                if (Xmlns != null)
                {
                    Xmlns.Close();
                    StrStream.Close();
                    StrStream.Dispose();
                }
            }
        }
        return null;
    }

    /**//// <summary>

    /// 读取Xml文件信息,并转换成DataTable对象
    /// </summary>
    /// <param name="xmlFilePath">xml文江路径</param>
    /// <param name="tableIndex">Table索引</param>
    /// <returns>DataTable对象</returns>
    public static DataTable CXmlFileToDataTable(this string xmlFilePath, int tableIndex)
    {
        return CXmlFileToDataSet(xmlFilePath).Tables[tableIndex];
    }

    /**//// <summary>

    /// 读取Xml文件信息,并转换成DataTable对象
    /// </summary>
    /// <param name="xmlFilePath">xml文江路径</param>
    /// <returns>DataTable对象</returns>
    public static DataTable CXmlFileToDataTable(this string xmlFilePath)
    {
        return CXmlFileToDataSet(xmlFilePath).Tables[0];
    }
}