Program.cs

// Licensed under the Apache License, Version 2.0 (the "License").
// See the LICENSE file in the project root for more information.

using System;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Reflection;
using System.Resources;
using System.Threading.Tasks;

[assembly: NeutralResourcesLanguage("en-GB")]
[assembly:
    SuppressMessage("Usage", "CA2254:Template should be a static expression", Justification = "This is sample code")]

namespace HIDDevices.Sample;

internal static class Program
{
    private static async Task Main(string[] args)
    {
        var assembly = Assembly.GetExecutingAssembly();

        var samples = assembly
            .GetTypes()
            .Where(t => !t.IsAbstract &&
                        (t.IsValueType ||
                         (t.GetInterfaces().Contains(typeof(ISample)) &&
                          t.GetConstructor(Type.EmptyTypes) != null)))
            .Select(Activator.CreateInstance)
            .OfType<ISample>()
            .ToArray();

        ISample? sample;
        if (args.Length != 1 ||
            (sample = Array.Find(samples, s => s.ShortNames.Contains(args[0]))) is null)
        {
            var assemblyName = assembly.GetName().Name;
            // We appear to have a cry for help!
            Console.WriteLine(Resources.SampleExecutor, assemblyName);
            Console.WriteLine();

            do
            {
                Console.WriteLine(Resources.SelectSample);

                // Create instances of all sample classes
                foreach (var s in samples)
                {
                    Console.WriteLine(
                        Resources.SampleDescription, Environment.NewLine,
                        string.Join('|', s.ShortNames),
                        s.FullName,
                        s.Description);
                }

                if (!Environment.UserInteractive)
                {
                    return;
                }

                var option = Console.ReadLine();
                sample = Array.Find(samples, s => s.ShortNames.Contains(option));
            } while (sample is null);
        }

        Console.WriteLine(Resources.RunningSample, sample.FullName);
        Console.WriteLine();
        await sample.ExecuteAsync().ConfigureAwait(false);
    }
}