using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Reflection;

namespace Reflection
{
    public class XmlSupport
    {
        static public void UpdateField(ref T field, string xmlNodeName, XmlNode config)
        {
            try
            {
                XmlNode xmlNode = config.SelectSingleNode(xmlNodeName);

                if (field.GetType().Equals(typeof(string)))
                {
                    object obj = xmlNode.InnerText;
                    field = (T)obj;
                }
                else
                {
                    MethodInfo parseInfo = field.GetType().GetMethod("Parse", new Type[] { typeof(string) });
                    T convertedValue = (T)parseInfo.Invoke(null, new object[] { xmlNode.InnerText });
                    field = convertedValue;
                }
            }
            catch(Exception ex)
            {
                Console.WriteLine("Exception = " + ex.ToString());
            }
        }

        private bool ReadFromXml(string siteName)
        {
            XmlDocument xmlDoc = new XmlDocument();
            string path = "..\\..\\ReflectionTest.xml";
            string firmwareVersion = "";
            byte flags = 0;
            byte activeBattery = 0;
            uint solarPanelCurrent =0 ;
            sbyte temperature = 0;
            double voltageA = 0;
            double voltageB = 0;
            System.DateTime lastReportTime = DateTime.MinValue;

            try
            {
                xmlDoc.Load(path);
                XmlElement receiverNode = xmlDoc.DocumentElement;
                XmlSupport.UpdateField(ref firmwareVersion, "firmwareVersion", receiverNode);
                Console.WriteLine("firmwareVersion = " + firmwareVersion);
                XmlSupport.UpdateField(ref flags, "flags", receiverNode);
                Console.WriteLine("flags = " + flags.ToString());
                XmlSupport.UpdateField(ref activeBattery, "activeBattery", receiverNode);
                Console.WriteLine("activeBattery = " + activeBattery.ToString());
                XmlSupport.UpdateField(ref solarPanelCurrent, "solarPanelCurrent", receiverNode);
                Console.WriteLine("solarPanelCurrent = " + solarPanelCurrent.ToString());
                XmlSupport.UpdateField(ref temperature, "temperature", receiverNode);
                Console.WriteLine("temperature = " + temperature.ToString());
                XmlSupport.UpdateField(ref voltageA, "voltageA", receiverNode);
                Console.WriteLine("voltageA = " + voltageA.ToString());
                XmlSupport.UpdateField(ref voltageB, "voltageB", receiverNode);
                Console.WriteLine("voltageB = " + voltageB.ToString());
                XmlSupport.UpdateField(ref lastReportTime, "lastReportTime", receiverNode);
                Console.WriteLine("lastReportTime = " + lastReportTime.ToString());
                return true;
            }
            catch
            {
                return false;
            }
        }
        static void Main(string[] args)
        {
            XmlSupport xmlTest = new XmlSupport();
            xmlTest.ReadFromXml("CodeMatrix");
        }

    }
}