using NozCli.Commands;

namespace NozCli.Repl;

public class CommandRegistry
{
    private readonly Dictionary<string, ICommand> _map;

    public IReadOnlyList<ICommand> All { get; }

    public CommandRegistry()
    {
        var list = new List<ICommand>
        {
            new LsCommand(),
            new CdCommand(),
            new CatCommand(),
            new NewCommand(),
            new EditCommand(),
            new PushCommand(),
            new SyncCommand(),
            new StatusCommand(),
            new RmCommand(),
            new ConfigCommand(),
            new TreeCommand(),
            new VersionCommand(),
            new ClearCommand(),
        };
        // HelpCommand gets the full list so it can print them all
        list.Add(new HelpCommand(list));

        All = list.AsReadOnly();
        _map = list.ToDictionary(c => c.Name, StringComparer.OrdinalIgnoreCase);
    }

    public ICommand? Find(string name) => _map.GetValueOrDefault(name);

    public IEnumerable<string> Names => _map.Keys;
}