SshCommand.cs

using System.CommandLine;
using System.CommandLine.Completions;
using Spectre.Console;

namespace VmChamp;

public class SshCommand : Command
{
  private readonly AppConfig _appConfig;

  public SshCommand(AppConfig appConfig) : base("ssh", "connect to vm via ssh")
  {
    _appConfig = appConfig;
    
    Argument<string> nameArgument = new("name",
      () => appConfig.DefaultVmName,
      "Name of the new VM");
    
    this.AddArgument(nameArgument);
    
    nameArgument.AddCompletions((ctx) => 
      Helper.GetAllVmInDirectory(_appConfig.DataDir)
        .Select(vmName => new CompletionItem(vmName ?? "")));
    
    nameArgument.AddCompletions((ctx) => 
      Helper.GetAllVmInDirectory(_appConfig.DataDir)
        .Select(vmName => new CompletionItem(vmName ?? "")));
    
    this.SetHandler((vmName) =>
    {
      AnsiConsole.MarkupLine($"✈️ Connect to: {vmName}");
      using var libvirtConnection = LibvirtConnection.CreateForSession();
      
      var vmId = Interop.virDomainLookupByName(libvirtConnection.NativePtr, vmName);
      var vmIp = Interop.GetFirstIpById(vmId);

      if (vmIp == null)
      {
        AnsiConsole.MarkupLine($"No network found for VM: {vmName}");
        return;
      }

      Helper.ConnectViaSsh(_appConfig.DefaultUser, vmIp)?.WaitForExit();
    }, nameArgument);
  }
}