import (
	"context"
	"fmt"
	"strconv"
	"strings"
)

// markerTagVersion is the marker version.
// Should not need to be updated unless a fundamental change is made to the marker format.
const markerTagVersion = "v2"

// parseMarker will parse a marker possibly encoded with encodeMarker
func (o *listPathOptions) parseMarker() {
	s := o.Marker
	if !strings.Contains(s, "[minio_cache:"+markerTagVersion) {
		return
	}

It must be noted that if active-active replication is set up with delete marker replication, there is potential for duplicate delete markers to be created if both source and target concurrently set a Delete Marker or if one/both of the clusters went down at tandem before the replication event was synced.This is an unavoidable side-effect in active-active replication caused by allowing delete markers set on a object version with `REPLICA` status back to source.

![delete](https://raw.githubusercontent.com/minio/minio/master/docs/bucket/versioning/versioning_DELETE_versionEnabled.png)

| `minio_cluster_usage_version_total`          | Total number of versions (includes delete marker) in a cluster |
| `minio_cluster_usage_deletemarker_total`     | Total number of delete markers in a cluster                    |
| `minio_cluster_bucket_total`                 | Total number of buckets in the cluster                         |

## Cluster Drive Metrics

	Expires              time.Time // Is only used in POST/PUT operations

	DeleteMarker            bool // Is only set in DELETE operations for delete marker replication
	CheckDMReplicationReady bool // Is delete marker ready to be replicated - set only during HEAD
	Tagging                 bool // Is only in GET/HEAD operations to return tagging metadata along with regular metadata and body.

        assertTrue(str.contains("Trans2QueryFSInformation["), "should start with class name");
        assertTrue(str.contains(",informationLevel=0x"), "should contain level field marker");
    }

	}
}

func (ri *batchJobInfo) countItem(size int64, dmarker, success bool, attempt int) {
	if ri == nil {
		return
	}
	ri.Attempts++
	if success {
		if dmarker {
			ri.DeleteMarkers++
		} else {
			ri.Objects++
			ri.BytesTransferred += size
		}
		if attempt > 1 {
			if dmarker {
				ri.DeleteMarkersFailed--
			} else {
				ri.ObjectsFailed--

```
mc replicate edit alias/bucket --id xyz.id --replicate "delete,delete-marker"
```

To re-enable replica metadata modification syncing,

```
mc replicate edit alias/bucket --id xyz.id --replicate "delete,delete-marker,replica-metadata-sync"
```

## MinIO Extension

### Replicating Deletes

type ListMultipartsInfo struct {
	// Together with upload-id-marker, this parameter specifies the multipart upload
	// after which listing should begin.
	KeyMarker string

	// Together with key-marker, specifies the multipart upload after which listing
	// should begin. If key-marker is not specified, the upload-id-marker parameter
	// is ignored.
	UploadIDMarker string

}

// xlMetaV2DeleteMarker defines the data struct for the delete marker journal type
type xlMetaV2DeleteMarker struct {
	VersionID [16]byte          `json:"ID" msg:"ID"`                               // Version ID for delete marker
	ModTime   int64             `json:"MTime" msg:"MTime"`                         // Object delete marker modified time