WarcraftMovieWatcher.cs

using System;
using System.Net;
using System.Text;
using System.Threading;

namespace WebPageWatcher
{
	public class Program
	{
		public static State state;

		static void Main(string[] args)
		{
			while (true)
			{
				Thread.Sleep(60 * 60 * 1000);
				DoCheck();
			}
		}

		private static void DoCheck()
		{
			WebClient myClient = new WebClient();
			myClient.Encoding = System.Text.Encoding.UTF8;
			string sourceCode = myClient.DownloadString("http://www.kinoarena.com/bg/brand/IMAX/filmi/kino-arena-mladost");

			StringBuilder sb = new StringBuilder();

			for (int i = 0; i < sourceCode.Length; i++)
			{
				char currentCharacter = sourceCode[i];
				if (currentCharacter == '<' && state != State.InHeading)
				{
					if (sourceCode[i + 1] == 'h' && sourceCode[i + 2] == '5')
					{
						state = State.InHeading;
					}
					else
					{
						state = State.Normal;
					}
				}

				if (currentCharacter == '>' && state == State.InHeading)
				{
					if (sourceCode[i - 1] == '5')
					{
						state = State.Normal;
						sb.Append('>');
						sb.Append('|');
					}
				}

				if (state == State.InHeading)
				{
					sb.Append(currentCharacter);
				}
			}

			string result = sb.ToString().ToLower();

			string[] keywords = { "warcraft", "warcraft", "уоркрафт", "уаркрафт", "уъркрафт" };

			for (int i = 0; i < keywords.Length; i++)
			{
				if (result.IndexOf(keywords[i]) > -1)
				{
					Console.WriteLine("YES BABY!");
					// TODO: MailTo dobromirivanov1@gmail.com
				}
			}
		}
	}

	public enum State
	{
		Normal,
		InHeading
	}
}