using System.Formats.Tar;
using System.Net;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
using CmlLib.Core;
using CmlLib.Core.Auth;
using CmlLib.Core.Auth.Microsoft;
using CmlLib.Core.ProcessBuilder;
using XboxAuthNet.Game.Msal;

namespace Plombir;

/*
    Basically a class to manage everything launcher related.
    TODO - minecraft downloading from webserver
*/
public class Launcher
{
    private readonly string _version;
    private readonly string _nickname;
    static private MinecraftPath? _mcPath;
    static private MinecraftLauncher? _mcLauncher;

    public int DownloadProgress;
    public string? DownloadStatus;

    public Launcher(string userName, string version, string? location = null)
    {
        _version = version;
        _nickname = userName;
        _mcPath = new($"{location}/{version}/minecraft");
        _mcLauncher = new(_mcPath);
    }

    async public Task BuildLauncher(CancellationToken token)
    {
        if (_mcLauncher is null)
            throw new NullReferenceException("Failed to build! Launcher is null!");

        _mcLauncher.ByteProgressChanged += (_, args) =>
        {
            Console.WriteLine($"{(int)(args.ProgressedBytes * 0.000001)} MBytes / {(int)(args.TotalBytes * 0.000001)} MBytes");
            DownloadProgress = (int)(args.ProgressedBytes * 100 / args.TotalBytes);
        };

        DownloadStatus = "Installing minecraft...";
        Console.WriteLine(DownloadStatus);
        await _mcLauncher.InstallAsync(_version);
        DownloadStatus = "Finished!";
        Console.WriteLine(DownloadStatus);
        return;
    }

    async public Task RunLauncher()
    {
        if (_mcLauncher is null)
            throw new NullReferenceException("Failed to run launcher! Launcher is null!");

        var process = await _mcLauncher.BuildProcessAsync(_version, new MLaunchOption
        {

            Session = MSession.CreateOfflineSession(_nickname),
            MaximumRamMb = 4096,

        }) ?? throw new Exception("Failed to start minecraft process!");

        var processUtil = new ProcessWrapper(process);
        processUtil.OutputReceived += (s, e) => Console.WriteLine(e);
        processUtil.StartWithEvents();

        await processUtil.WaitForExitTaskAsync();
    }

}