Program.cs

using System.CommandLine;
using System.Text;

namespace Noema;

internal static class Program
{
    internal static string? model;

    private static async Task<int> Main (string[] args)
    {
        Console.OutputEncoding = Encoding.UTF8;

        int parseErr = ParseArguments(args);
        if (parseErr != 0)
        {
            Console.WriteLine("Error while parsing arguments. ERRCODE:" + parseErr);
            return parseErr;
        }

        if (model == null)
        {
            Console.WriteLine("No model was provided with --model");
            Console.WriteLine("Please enter the model to use:");
            model = Console.ReadLine();

            if (string.IsNullOrWhiteSpace(model))
            {
                Console.WriteLine("No model was provided.");
                return 1;
            }
        }

        OllamaClient ollama = new(model);

        using CancellationTokenSource cancellationTokenSource = new();

        if (!await ollama.IsRunningAsync(cancellationTokenSource.Token))
        {
            Console.WriteLine("Ollama is not running or cannot be reached.");
            return 1;
        }
        if (!await ollama.IsModelAvailableAsync(cancellationTokenSource.Token))
        {
            Console.WriteLine($"Model '{model}' is not installed in Ollama.");
            return 1;
        }

        Console.WriteLine($"Using Ollama model '{model}'.");

        ChatInterface chatInterface = new();
        return await chatInterface.Chat(ollama);
    }

    private static int ParseArguments (string[] args)
    {
        Option<string> modelOption = new("--model");

        RootCommand rootCommand = new("An experimental creative AI that uses random personas to increase diversity");
        rootCommand.Options.Add(modelOption);

        rootCommand.SetAction(parseResult =>
        {
            model = parseResult.GetValue(modelOption);
        });
        return rootCommand.Parse(args).Invoke();
    }
}