using System;
using System.IO;
using System.Net;
using System.Text;

public class Program
{
	public static readonly string Name = "Dividing program";
	public static readonly string Version = "0.1";

	public static string ProgramId
	{
		get { return string.Format("{0}/{1}", Name, Version); }
	}

	public static int Main(string[] args)
	{
		float a = 0, b = 0, c = 0;

		try
		{
			Console.WriteLine(ProgramId);
			Console.WriteLine("This program divides one number by another.");

			Console.Write("Enter number 1: ");
			a = float.Parse(Console.ReadLine());
			Console.Write("Enter number 2: ");
			b = float.Parse(Console.ReadLine());

			c = a / b;
			Console.WriteLine("Number 1 divided by number 2 is {0}.", c);
		}
		catch(Exception error)
		{
			Console.WriteLine("An error has occurred!");
			Console.Write("Would you like to report it? [Y/n] ");

			bool sendReport = false;
			while(true)
			{
				ConsoleKey key = Console.ReadKey().Key;
				if (key == ConsoleKey.Y) {
					sendReport = true;
					break;
				}
				else if (key == ConsoleKey.N)
					break;
			}
			Console.WriteLine();

			if(!sendReport)
			{
				Console.WriteLine("No report has been sent.");
				Console.WriteLine("Press any key to exit.");
				Console.ReadKey(true);
				return 1;
			}

			Console.Write("Collecting data - ");
			MemoryStream dataStream  = new MemoryStream();
			StreamWriter dataIn = new StreamWriter(dataStream);
			dataIn.WriteLine("***** Error Report *****");
			dataIn.WriteLine(error.ToString());
			dataIn.WriteLine();
			dataIn.WriteLine("*** Details ***");
			dataIn.WriteLine("a: {0}", a);
			dataIn.WriteLine("b: {0}", b);
			dataIn.WriteLine("c: {0}", c);
			dataIn.Flush();

			dataStream.Seek(0, SeekOrigin.Begin);
			string errorReport = new StreamReader(dataStream).ReadToEnd();
			Console.WriteLine("done");

			Console.Write("Sending report - ");
			HttpWebRequest reportSender = WebRequest.CreateHttp("https://starbeamrainbowlabs.com/reportSender.php");
			reportSender.Method = "POST";
			byte[] payload = Encoding.UTF8.GetBytes(errorReport);
			reportSender.ContentType = "text/plain";
			reportSender.ContentLength = payload.Length;
			reportSender.UserAgent = ProgramId;
			Stream requestStream = reportSender.GetRequestStream();
			requestStream.Write(payload, 0, payload.Length);
			requestStream.Close();

			WebResponse reportResponse = reportSender.GetResponse();
			Console.WriteLine("done");
			Console.WriteLine("Server response: {0}", ((HttpWebResponse)reportResponse).StatusDescription);
			Console.WriteLine("Press any key to exit.");
			Console.ReadKey(true);
			return 1;
		}

		return 0;
	}
}