using Mono.Options;

namespace ModpackUpdater.Apps.Client;

internal class Options
{
    private readonly List<string> additionals = [];
    private readonly OptionSet options;

    public IReadOnlyList<string> Additionals => additionals;
    public bool Help { get; private set; }
    public bool Silent { get; private set; }
    public bool NoUi { get; private set; }
    public UpdateCheckOptionsAdv UpdateOptions { get; } = new();

    public Options(string[] args)
    {
        options = new OptionSet
        {
            { "silent", "Do not output anything.", s => Silent = true },
            { "h|help", "Writes the help text as output.", h => Help = true },
            { "n|noui", "Install without user interface.", n => NoUi = true },
            { "p|profile=", "Sets the minecraft profile folder.", p => UpdateOptions.ProfileFolder = p },
            { "c|config=", "Sets the modpack update info url.", c => UpdateOptions.ModpackConfig = c },
            { "s|side=", "Sets the installation side.\nDefault side is Client.\nAvailable: Client, Server", s => UpdateOptions.Side = Enum.Parse<Side>(s)},
            { "u|uai", "Disallow an update directly after install. This only has effect if there is no existing installation.", uai => UpdateOptions.AllowUpdaterAfterInstall = false},
            { "noupdate", "Skip the update check.", noupdate => UpdateOptions.NoUpdate = true},
            { "m|maintenance", "Ignores the maintenance mode.", m => UpdateOptions.IgnoreMaintenance = true},
            { "i|nonpublic", "Include non public (currently hidden) updates.", i => UpdateOptions.IncludeNonPublic = true},
            { "k|key=", "An key for retriving extra files on updates.", k => UpdateOptions.ExtrasKey = k},
        };

        additionals.AddRange(options.Parse(args));
    }

    public void DrawHelp()
    {
        options.WriteOptionDescriptions(Console.Out);
    }
}