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

namespace EAS.Distributed
{
    /// <summary>
    /// 升级配置信息。
    /// </summary>
    [Serializable]
    [DataContract]
    public class SmartConfig
    {
        string url = "http://www.smarteas.net/";
        string name = "AgileEAS.NET SOA平台升级配置文件";
        string description = "用于AgileEAS.NET SOA平台SmartClient/ActiveX运行容器模块升级之用";
        string startEx = "";

        DateTime time = DateTime.Now;
        List<SmartFile> files;

        /// <summary>
        /// 初始化SmartConfig对象实例。
        /// </summary>
        public SmartConfig()
        {
            this.files = new List<SmartFile>();
        }

        /// <summary>
        /// URL地址。
        /// </summary>
        [DataMember]
        public string URI
        {
            get
            {
                return this.url;
            }
            set
            {
                this.url = value;
            }
        }

        /// <summary>
        /// 名称。
        /// </summary>
        [DataMember]
        public string Name
        {
            get
            {
                return this.name;
            }
            set
            {
                this.name = value;
            }
        }

        /// <summary>
        /// 说明。
        /// </summary>
        [DataMember]
        public string Description
        {
            get
            {
                return this.description;
            }
            set
            {
                this.description = value;
            }
        }

        /// <summary>
        /// 下载完后执行。
        /// </summary>
        [DataMember]
        public string StartEx
        {
            get
            {
                return this.startEx;
            }
            set
            {
                this.startEx = value;
            }
        }

        /// <summary>
        /// 最后更新时间。
        /// </summary>
        [DataMember]
        public DateTime Time
        {
            get
            {
                return this.time;
            }
            set
            {
                this.time = value;
            }
        }

        /// <summary>
        /// 系统运行必须的一些文件。
        /// </summary>
        [XmlArray()]
        [XmlArrayItem(typeof(SmartFile))]
        [DataMember]
        public List<SmartFile> Files
        {
            get
            {
                if (this.files == null)
                {
                    this.files = new List<SmartFile>();
                }

                return this.files;
            }
        }

        /// <summary>
        /// 装载智能升级配置。
        /// </summary>
        /// <param name="xml">xml。</param>
        /// <returns>智能升级配置。</returns>
        public static SmartConfig LoadXML(string xml)
        {
            using (System.IO.TextReader writer = new System.IO.StringReader(xml))
            {
                System.Xml.Serialization.XmlSerializer xmlSerializer = new System.Xml.Serialization.XmlSerializer(typeof(SmartConfig));
                return (SmartConfig)xmlSerializer.Deserialize(writer);
            }
        }

        /// <summary>
        /// 转换为XML字符串。
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            StringBuilder sb = new StringBuilder();

            using (System.IO.TextWriter writer = new System.IO.StringWriter(sb))
            {
                System.Xml.Serialization.XmlSerializer xmlSerializer = new System.Xml.Serialization.XmlSerializer(typeof(SmartConfig));
                xmlSerializer.Serialize(writer, this);
                writer.Close();
            }

            return sb.ToString();
        }

        /// <summary>
        /// 保存智能升级配置信息到
        /// </summary>
        /// <param name="config">智能升级配置。</param>
        /// <param name="file">文件名。</param>
        public static void Save(SmartConfig config, string file)
        {
            if (File.Exists(file))
            {
                File.Delete(file);
            }

            using (System.IO.StreamWriter writer = new System.IO.StreamWriter(file))
            {
                System.Xml.Serialization.XmlSerializer xmlSerializer = new System.Xml.Serialization.XmlSerializer(typeof(SmartConfig));
                xmlSerializer.Serialize(writer, config);
                writer.Close();
            }
        }

        /// <summary>
        /// 装载智能升级配置。
        /// </summary>
        /// <param name="file">文件名。</param>
        /// <returns>智能升级配置。</returns>
        public static SmartConfig Load(string file)
        {
            if (!System.IO.File.Exists(file))
            {
                return new SmartConfig();
            }

            using (System.IO.StreamReader reader = new System.IO.StreamReader(file))
            {
                System.Xml.Serialization.XmlSerializer xmlSerializer = new System.Xml.Serialization.XmlSerializer(typeof(SmartConfig));
                SmartConfig smartAssemblyList = xmlSerializer.Deserialize(reader) as SmartConfig;
                reader.Close();
                return smartAssemblyList;
            }
        }

        /// <summary>
        /// 系统默认配置文件。
        /// </summary>
        public static string DefaultConfgiFile
        {
            get
            {
                return "SmartUpdate.xml";
            }
        }
    }    
}