using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;

namespace Filter.Handlers.Instances
{
	internal class FilterAssembly
	{
		public FilterAssembly()
		{
		}

		public static IEnumerable<Combine<PacketAttribute, MethodInfo>> FindHandlers<PacketAttribute>()
		where PacketAttribute : Attribute
		{
			return (
				from Assembly in AppDomain.CurrentDomain.GetAssemblies()
				where !Assembly.GlobalAssemblyCache
				select Assembly).SelectMany<System.Reflection.Assembly, Type>((System.Reflection.Assembly Types) => Types.GetTypes()).SelectMany<Type, MethodInfo>((Type Methods) => Methods.GetMethods()).Select((MethodInfo Method) => new { Method = Method, CustomAttribute = (PacketAttribute)(Attribute.GetCustomAttribute(Method, typeof(PacketAttribute), false) as PacketAttribute) }).Where((argument0) => argument0.CustomAttribute != null).Select((argument1) => new Combine<PacketAttribute, MethodInfo>(argument1.CustomAttribute, argument1.Method));
		}
	}
}