using System;
using System.IO;
using System.Xml;

namespace Narcissus
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			Class1 c = new Class1();
			try 
			{

				// Establish the writer
				XmlTextWriter xwriter = new XmlTextWriter("Narcissus.xml", null);
				xwriter.Formatting = Formatting.Indented;
				xwriter.WriteStartDocument();
				xwriter.WriteStartElement("Narcissus");

				// Get the input data
				XmlDocument pup1 = new XmlDocument();
				pup1.Load("DaffodilPup1.xml");

				XmlDocument pup2 = new XmlDocument();
				pup2.Load("DaffodilPup2.xml");

				// Collect target nodes
				XmlNodeList flowerList1;
				XmlElement root1 = pup1.DocumentElement;
				flowerList1 = root1.SelectNodes("/Daffodil/Narcissus");
	
				// Process target nodes
				foreach (XmlNode d in flowerList1) 
				{
					string group = d.ChildNodes[2].InnerText;
					string year = d.ChildNodes[3].InnerText;

					// Get the attribute data of node
					XmlAttributeCollection ac;
					ac = d.Attributes;
	
					string name = ac["Name"].InnerText;

					XmlAttributeCollection acPar;
					acPar = d.ParentNode.Attributes;

					string supplier = acPar["Supplier"].InnerText;

					// Send information to flower write method
					c.flowerWrite(xwriter, group, supplier, year, name);
				}

				// Collect target nodes
				XmlNodeList flowerList2;
				XmlElement root2 = pup2.DocumentElement;
				flowerList2 = root2.SelectNodes("//Name");

				// Process target nodes
				foreach (XmlNode e in flowerList2) 
				{
					string group = e.ParentNode.Name;
					Console.WriteLine("group is " + group);
					string year = e.ParentNode.ChildNodes[1].InnerText;
					Console.WriteLine("year is " + year);
					string name = e.ParentNode.ChildNodes[0].InnerText;
					Console.WriteLine("name is " + name);

					// Get the attribute data of node
					XmlAttributeCollection ac;
					ac = e.ParentNode.ParentNode.Attributes;
	
					string supplier = ac["Service"].InnerText;
					Console.WriteLine("supplier is " + supplier);

					// Send information to flower write method
					c.flowerWrite(xwriter, group, supplier, year, name);
				}

				// Close the writer
				xwriter.WriteEndDocument();
				xwriter.Close();

			} 
			catch (IOException e) 
			{
				Console.WriteLine(e);
			}
		
			
		}

		Class1()
		{
		}

		public void flowerWrite(
			XmlTextWriter w, 
			string inGroup, 
			string inSupplier, 
			string inYear, 
			string inName)
		{

			w.WriteStartElement(inGroup);
			w.WriteStartElement(inSupplier);
			w.WriteAttributeString("YEAR",inYear);
			w.WriteElementString("NAME", inName);
			w.WriteEndElement();
			w.WriteEndElement();

		}
	}
}