using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using UnityEngine;

public static class XmlHelper 
{
    /// <summary>
    /// 序列化--内存流
    /// </summary>
    /// <param name="pObject">对象</param>
    /// <param name="t">类型</param>
    /// <returns></returns>
    public static string SerializeObject(object pObject, Type t)
    {
        string XmlizedString = null;
        MemoryStream memoryStream = new MemoryStream();
        XmlSerializer xs = new XmlSerializer(t);
        XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
        xs.Serialize(xmlTextWriter, pObject);
        memoryStream = (MemoryStream)xmlTextWriter.BaseStream;
        XmlizedString = UTF8ByteArrayToString(memoryStream.ToArray());
        //Debug.Log("" + XmlizedString);
        return XmlizedString;
    }

    /// <summary>
    /// 字节转string
    /// </summary>
    /// <param name="characters">字节数组</param>
    /// <returns></returns>
    private static string UTF8ByteArrayToString(byte[] characters)
    {
        UTF8Encoding encoding = new UTF8Encoding();
        string constructedString = encoding.GetString(characters);
        return (constructedString);
    }

    /// <summary>
    /// 反序列化
    /// </summary>
    /// <param name="pXmlizedString">string内容</param>
    /// <param name="t">类型</param>
    /// <returns></returns>
    public static object DeserializeObject(string filePath, Type t)
    {
        FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
        XmlSerializer xs = new XmlSerializer(t);
        //MemoryStream memoryStream = new MemoryStream(StringToUTF8ByteArray(fileStream));
        //XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
        return xs.Deserialize(fileStream);
    }

    /// <summary>
    /// 字符串转字节数组
    /// </summary>
    /// <param name="pXmlString">字符内容</param>
    /// <returns></returns>
    private static byte[] StringToUTF8ByteArray(string pXmlString)
    {
        UTF8Encoding encoding = new UTF8Encoding();
        byte[] byteArray = encoding.GetBytes(pXmlString);
        return byteArray;
    }

    /// <summary>
    /// 序列化--XML文件
    /// </summary>
    /// <param name="pObject">对象</param>
    /// <param name="t">类型</param>
    /// <param name="XMLPath">生成的xml路径</param>
    public static bool SerializeObjectXML(object pObject, Type t, string XMLPath)
    {
        XmlWriterSettings ws = new XmlWriterSettings();
        ws.Encoding = Encoding.UTF8;
        try
        {
            XmlWriter xmTextWriter = XmlWriter.Create(XMLPath, ws);
            XmlSerializer xmlFormat = new XmlSerializer(t);
            xmlFormat.Serialize(xmTextWriter, pObject);
            xmTextWriter.Close();
            return true;
        }
        catch (Exception e)
        {
            Debug.Log(e.Message);
            return false;
        }
    }
}