Query/AppWindows/App.cs

using System.Linq;
using AppSys.Handlers;
using Base;

namespace AppSys{
    public sealed class App : IApp{
        private static readonly IHandler[] Handlers = {
            new HandlerProcesses(),
            new HandlerApps()
        };

        public string[] RecognizedNames => new string[]{
            "sys",
            "os",
            "win"
        };

        public MatchConfidence GetConfidence(Command cmd){
            return Handlers.Any(handler => handler.Matches(cmd)) ? MatchConfidence.Full : MatchConfidence.None;
        }

        public string ProcessCommand(Command cmd){
            return Handlers.First(handler => handler.Matches(cmd)).Handle(cmd);
        }
    }
}