Program.cs

using System.Collections.Generic;

using CommandLine;
using Exercism.CSharp.Exercises;

using Serilog;

namespace Exercism.CSharp;

public static class Program
{
    public static void Main(string[] args)
    {
            Logging.Setup();

            Options.Parse(args)
                .WithParsed(OnParseSuccess)
                .WithNotParsed(OnParseError);
        }
        
    private static void OnParseSuccess(Options options)
    {
            var generatorRunner = new GeneratorRunner(options);

            // TODO: enable nullable
            if (options.Exercise == null)
                generatorRunner.RegenerateAllExercises();
            else
                generatorRunner.RegenerateSingleExercise(options.Exercise);
        }

    private static void OnParseError(IEnumerable<Error> errors) =>
        Log.Error("Errors: {Errors}", errors);
}