/src/ZebraFlickr/Program.cs

#region License



// Copyright (c) 2012 Gareth Lennox (garethl@dwakn.com)

// All rights reserved.

// 

// Redistribution and use in source and binary forms, with or without modification,

// are permitted provided that the following conditions are met:

// 

//     * Redistributions of source code must retain the above copyright notice,

//       this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above copyright notice,

//       this list of conditions and the following disclaimer in the documentation

//       and/or other materials provided with the distribution.

//     * Neither the name of Gareth Lennox nor the names of its

//       contributors may be used to endorse or promote products derived from this

//       software without specific prior written permission.

//  

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE

// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



#endregion



using System;

using System.Diagnostics;

using System.Text;

using ZebraFlickr.CommandLine;

using ZebraFlickr.CommandLine.Exceptions;



namespace ZebraFlickr

{

	internal class Program

	{

		private static void Main(string[] args)

		{

			var startColor = Console.ForegroundColor;



		    Console.OutputEncoding = Encoding.UTF8;



			Console.CursorVisible = false;



			Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)

				{

					if (CancelHandler.Cancelled)

					{

						Log.Warn("Aborting all processes NOW");

						Console.ForegroundColor = startColor;

						Environment.Exit(1);

					}

					else

					{

						Log.Warn("Cancelling process - attempting to do it gracefully. Pressing Ctrl+C again will exit immedietly.");

						e.Cancel = true;

						CancelHandler.Cancel();

					}

				};



			try

			{

				IAction action = null;

				try

				{

					action = ActionHelper.Resolve(args);



					if (action == null)

						throw new CommandLineException("Unrecognised command line");



					action.Run();

				}

				catch (ValidationException ex)

				{

					var writer = Console.Error;



					BaseAction.PrintLogo(false, writer);



					writer.WriteLine("Error: {0}", ex.Message);

					writer.WriteLine("try 'zebraflickr help' for more information.");

					Environment.ExitCode = 1;

				}

				catch (Exception ex)

				{

					var writer = Console.Error;



					BaseAction.PrintLogo(false, writer);



					writer.WriteLine("Error: " + ex.Message);

					writer.WriteLine();



					//if the action didn't even get made, or the verbosity is debug, dump the stack trace out

					if (action == null || action.Verbosity >= LogLevel.Debug)

					{

						writer.WriteLine("Full error: " + ex);

					}



					Environment.ExitCode = 1;

				}

			}

			catch (Exception ex)

			{

				Console.Error.WriteLine(ex.ToString());

				Environment.ExitCode = 1;

			}

			finally

			{

				Console.ForegroundColor = startColor;



				if (Debugger.IsAttached)

					Console.ReadLine();

			}

		}

	}

}