using System.Management.Automation;
namespace ReproProgress
{
    [Cmdlet(VerbsCommon.Get, "MyItem", SupportsShouldProcess = true)]
    public class MyCmdlet : Cmdlet
    {
        protected override void ProcessRecord()
        {
            string[] status = new string[] {
                "The first stage",
                "次の段階",
                "その次の段階",
                "そのまた次の段階",
                "もうすぐ終わるよ",
                "完了!"
            };

            var progress = new ProgressRecord(1, "My Status", "preparing...");

            int index = 0;
            foreach (var stage in status)
            {
                progress!.PercentComplete = (++index * 100) / status.Count();
                progress.StatusDescription = $"{index:D}/{status.Count()} {stage}";
                WriteProgress(progress);
                Thread.Sleep(500);
            }

            progress.RecordType = ProgressRecordType.Completed;
            WriteProgress(progress);
        }
    }
}