//
// Version.cs
//
// Author:
//   Leonardo Taglialegne <leonardo.taglialegne@gmail.com>
//
// Copyright (c) 2013 Leonardo Taglialegne.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.IO;
using System.Reflection;

namespace Mono.WebServer {
	public static class Version
	{
		public static void Show ()
		{
			Assembly assembly = Assembly.GetExecutingAssembly ();
			string version = assembly.GetName ().Version.ToString ();

			// string title = GetAttribute<AssemblyTitleAttribute> (a => a.Title);
			string copyright = GetAttribute<AssemblyCopyrightAttribute> (a => a.Copyright);
			string description = GetAttribute<AssemblyDescriptionAttribute> (a => a.Description);

			Console.WriteLine ("{0} {1}\n(c) {2}\n{3}",
				Path.GetFileName (assembly.Location), version,
				copyright, description);
		}

		static string GetAttribute<T> (Func<T, string> func) where T : class
		{
			Assembly assembly = Assembly.GetExecutingAssembly ();
			var attributes = assembly.GetCustomAttributes (typeof (T), false);
			if (attributes.Length == 0)
				return String.Empty;
			var att = attributes [0] as T;
			if (att == null)
				return String.Empty;
			return func (att);
		}
	}
}