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

/*
//CString sXML = _T("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
  <yz-graph tag=\"rect\" min=\"\" max=\"\" avg=\"\">\
  <G id=\"1\" x=\"0\" y=\"0\"/>\
  <G id=\"2\" x=\"37\" y=\"25\"/>\
  <G id=\"3\" x=\"38\" y=\"25\"/>\
  <G id=\"4\" x=\"39\" y=\"25\"/>\
  </yz-graph>");
*/
namespace GummingCommon
{
    public class ComInterface
    {
        //tag 值域:  "dot", "line" , "rect", "ellipse", "polygon"， 分别是点，直线，矩形，椭圆， 多边形
        public const string Dot = "dot";
        public const string Line = "line";
        public const string Rectangle = "rect";
        public const string Circle = "ellipse";
        public const string Polygon = "polygon";

        public static string Transfer(string tag, List<coordinate> coordinates)
        {
            yzgraph yz = new yzgraph();
            yz.tag = tag;           
            yz.coordinates = new List<coordinate>();
            yz.coordinates = coordinates;

            XmlSerializer serializer = new XmlSerializer(typeof(yzgraph));
            MemoryStream ms = new MemoryStream();
            StreamWriter sw = new StreamWriter(ms, Encoding.UTF8);
            XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
            ns.Add("", "");//remove default namespace
            serializer.Serialize(sw, yz, ns);
            string xml = Encoding.UTF8.GetString(ms.ToArray());
            ms.Close();

            return xml.Replace("<?", "<?").Replace("?>", " ?>");
        }

        public static yzgraph Read(string xml)
        {
            XmlDocument xdoc = new XmlDocument();
            try
            {
                xdoc.LoadXml(xml);
                XmlNodeReader reader = new XmlNodeReader(xdoc.DocumentElement);
                XmlSerializer ser = new XmlSerializer(typeof(yzgraph));
                object obj = ser.Deserialize(reader);
                return (yzgraph)obj;
            }
            catch
            {
                return default(yzgraph);
            }
        }
    }
    [Serializable]
    [XmlRoot("yz-graph")]
    public class yzgraph
    {
        [XmlAttribute]
        public string tag { get; set; }

        [XmlAttribute]
        public string min { get; set; }
        [XmlAttribute]
        public string max { get; set; }
        [XmlAttribute]
        public string avg { get; set; }

        [XmlElementAttribute(ElementName = "G")]       
        public List<coordinate> coordinates { get; set; }
    }

    [Serializable]    
    public class coordinate
    {
        [XmlAttribute]
        public string id { get; set; }

        [XmlAttribute]
        public string x { get; set; }
        [XmlAttribute]
        public string y { get; set; }
    }
}