using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MessengerDotNet;

namespace WlmImage
{
	static class Program
	{
		static Image online;
		static Image away;
		static Image busy;
		static Image offline;

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main()
		{
			Console.WriteLine("Loading contacts...");
			var contacts = MessengerDotNet.MessengerAPI.Contacts.ToList();
			contacts.Add(MessengerDotNet.MessengerAPI.Me);

			Console.WriteLine("Loading images...");
			online = Image.FromFile("online.png");
			away = Image.FromFile("away.png");
			busy = Image.FromFile("busy.png");
			offline = Image.FromFile("offline.png");

			HttpListener httpListener = new HttpListener();
			httpListener.Prefixes.Add("http://+/");
			httpListener.Start();

			Console.WriteLine("Listening...");

			while (true)
			{
				HttpListenerContext context = httpListener.GetContext();
				HttpListenerResponse response = context.Response;
				try
				{
					var requestedEmail = context.Request.Url.LocalPath;
					if (requestedEmail.StartsWith("/"))
					{
						requestedEmail = requestedEmail.Remove(0, 1);
					}
					if (requestedEmail.EndsWith(".png"))
					{
						requestedEmail = requestedEmail.Remove(requestedEmail.Length - 4, 4);
					}

					Console.WriteLine($"{requestedEmail} requested from {context.Request.RemoteEndPoint.ToString()}");

					Bitmap bitmap = null;

					foreach (var item in contacts)
					{
						if (item.Email == requestedEmail)
						{
							bitmap = GetBitmap(item);
							response.StatusCode = (int)HttpStatusCode.Found;
							break;
						}
					}

					if (bitmap == null)
					{
						bitmap = GetBitmap(requestedEmail,"", requestedEmail, "unknown.png", MessengerStatus.Offline);
						response.StatusCode = (int)HttpStatusCode.NotFound;
					}

					if (bitmap != null)
					{
						using (var memoryStream = new MemoryStream())
						{
							bitmap.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Png);
							response.ContentLength64 = memoryStream.Length;
							memoryStream.WriteTo(response.OutputStream);
						}
						response.ContentType = "image/png";
					}
					
				}
				catch (Exception ex)
				{
					response.StatusCode = (int)HttpStatusCode.InternalServerError;
					var stream = new StreamWriter(response.OutputStream);
					stream.WriteLine("Oof. \n\n" + ex.ToString());
					stream.Flush();
				}
				finally
				{
					
					try
					{
						context.Response.Close();
					}
					catch {}
				}
				
			}
		}

		public static Bitmap GetBitmap(string name, string psm, string email, string displayPicture, MessengerStatus status)
		{
			

			var bmp = (Bitmap)Bitmap.FromFile("bg.png");
			using (var g = Graphics.FromImage(bmp))
			{
				const bool includePicture = true;
				var x = 0;
				if (includePicture)
				{
					var frame = Image.FromFile("frame.png");
					g.DrawImage(frame, 8, 8, 62, 62);
					frame.Dispose();

					var picture = Image.FromFile(displayPicture);
					g.DrawImage(picture, 14, 14, 46, 46);
					picture.Dispose();

					x += 66;
				}

				Font font;

				Image statusIcon = offline;
				switch (status)
				{
					case MessengerStatus.Online:
						statusIcon = online;
						break;
					case MessengerStatus.Away:
					case MessengerStatus.BeRightBack:
					case MessengerStatus.OutToLunch:
						statusIcon = away;
						break;
					case MessengerStatus.Busy:
					case MessengerStatus.OnThePhone:
						statusIcon = busy;
						break;
				}
				
				
				if (string.IsNullOrWhiteSpace(psm))
				{
					psm = status.ToString();
				}

				g.DrawImage(statusIcon, x + 8, 11);

				font = new Font("Segoe UI", 13);
				g.DrawString(name, font, Brushes.White, x + 8 + statusIcon.Width, 6);


				font = new Font("Segoe UI", 10);
				g.DrawString(psm, font, Brushes.White, new Rectangle(x + 8, 28, bmp.Width - 8 - x, bmp.Height - 28));
			}
			return bmp;
		}

		public static Bitmap GetBitmap(MessengerContact contact)
		{
			const string profilePath = @"A:\Data\Documents\windows live messenger\profiles\";
			string picturePath = Path.Combine(profilePath, contact.Email + ".png");
			string psmPath = Path.Combine(profilePath, contact.Email + ".txt");

			return GetBitmap(contact.Name, 
				File.Exists(psmPath) ? File.ReadAllText(psmPath) : "",
				contact.Email,
				File.Exists(picturePath) ? picturePath : "picture.png",
				contact.Status);
		}
	}
}