using System;
using System.Collections;
using System.IO;
using System.Text;
using System.Threading;
using Jscape.Email;

namespace PopExample {

	class PopExample {

		public Pop myPop = null;
		// set default attachment folder
		public string attDir = "./messages/attachments/";

		public PopExample(string hostname, string username, string password){
			myPop = new Pop(hostname, username, password);
			// turn on debug mode
			myPop.Debug = true;
			// don't delete messages from server
			myPop.DeleteMessages = false;

			// Subscribe to events
			myPop.ConnectedEvent += new Pop.ConnectedEventHandler(OnConnected);
			myPop.DisconnectedEvent += new Pop.DisconnectedEventHandler(OnDisconnected);
			myPop.DataReceivedEvent += new Pop.DataReceivedEventHandler(OnDataReceived);
			myPop.CommandSentEvent += new Pop.CommandSentEventHandler(OnCommandSent);
			myPop.MessageRetrievedEvent += new Pop.MessageRetrievedEventHandler(OnMessageRetrieved);

			// test current dir structure
			if (!Directory.Exists(attDir)) {
				Directory.CreateDirectory(attDir);
			}

			// connect to pop server
			myPop.Connect();
			int mc = 0;
			// retrieve all email messages
			IEnumerator e = myPop.GetMessages();
			while(e.MoveNext()) {
				++mc;
				int ac = 0;
				EmailMessage message = (EmailMessage)e.Current;
				// get attachments for each email, if any
				IEnumerator ea = message.GetAttachments();
				while(ea.MoveNext()) {
					++ac;
					Attachment a = (Attachment)ea.Current;
					// get name of attached file, if any
					String filename = a.GetFilename();
					if (filename.Length == 0) {
						// build temporary filename
						filename = "att" + mc + "_" + ac + ".txt";
					}
					// get data for attached file
					byte[] data = a.GetFileData();
					// save the attachment
					FileStream fs = new FileStream(attDir + filename, FileMode.Create, FileAccess.Write);
					BinaryWriter w = new BinaryWriter(fs);
					w.Write(data, 0, data.Length);
					fs.Close();
				}
			}

			// your server may require a slight delay in order to respond.
			Thread.Sleep(100);
			// disconnect from server
			myPop.Disconnect();
		}

		[STAThread]
		static void Main(string[] args) {
			string hostname = "mail.ourserver.com";
			string username = "username@ourserver.com";
			string password = "password";

			PopExample popexample = new PopExample(hostname, username, password);
		}

		public void OnConnected(object sender, PopConnectedEventArgs e) {
			Console.WriteLine("Connected to {0}", e.Host);
		}
		public void OnDisconnected(object sender, PopDisconnectedEventArgs e) {
			if (myPop.IsConnected()) {
				myPop.Disconnect();
			}
			Console.WriteLine("Disconnected.");
		}
		public void OnDataReceived(object sender, PopDataReceivedEventArgs e) {
			Console.WriteLine("Response: "+e.Response);
		}
		public void OnCommandSent(object sender, PopCommandSentEventArgs e) {
			Console.WriteLine("Command: "+e.Command);
		}
		public void OnMessageRetrieved(object sender, PopMessageRetrievedEventArgs e) {
			Console.WriteLine("Message subject= "+e.Message.Subject);
		}

	}
}