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
	}

	var loi ListObjectsInfo
	opts := listPathOptions{
		V1:          v1,
		Bucket:      bucket,
		Prefix:      prefix,
		Separator:   delimiter,
		Limit:       maxKeysPlusOne(maxKeys, marker != ""),
		Marker:      marker,
		InclDeleted: false,

// Submitted by Tom Whitwell <******@****.***>
cloudapps.digital
london.cloudapps.digital

// GOV.UK Pay : https://www.payments.service.gov.uk/
// Submitted by Richard Baker <richard.baker@digital.cabinet-office.gov.uk>
pymnt.uk

// UKHomeOffice : https://www.gov.uk/government/organisations/home-office
// Submitted by Jon Shanks <******@****.***>
homeoffice.gov.uk

// Special conditions required by MinIO server are as below
//   - delimiter if set should be equal to '/', otherwise the request is rejected.
//   - marker if set should have a common prefix with 'prefix' param, otherwise
//     the request is rejected.
func validateListObjectsArgs(prefix, marker, delimiter, encodingType string, maxKeys int) APIErrorCode {
	// Max keys cannot be negative.
	if maxKeys < 0 {
		return ErrInvalidMaxKeys
	}

			return
		}
	} else {
		maxkeys = maxObjectList
	}

	prefix = values.Get("prefix")
	marker = values.Get("marker")
	delimiter = values.Get("delimiter")
	encodingType = values.Get("encoding-type")
	return
}

func getListBucketObjectVersionsArgs(values url.Values) (prefix, marker, delimiter string, maxkeys int, encodingType, versionIDMarker string, errCode APIErrorCode) {
	errCode = ErrNone

}

func NewWalker(context *build.Context, root string) *Walker {
	w := &Walker{
		context:  context,
		root:     root,
		features: map[string]bool{},
		imported: map[string]*apiPackage{"unsafe": &apiPackage{Package: types.Unsafe}},
	}
	w.loadImports()
	return w
}

func (w *Walker) Features() (fs []string) {
	for f := range w.features {
		fs = append(fs, f)
	}

		field, bts, err = msgp.ReadMapKeyZC(bts)
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "Marker":
			z.Marker, bts, err = msgp.ReadStringBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "Marker")
				return
			}
		case "LatestOnly":
			z.LatestOnly, bts, err = msgp.ReadBoolBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "LatestOnly")

        "english_keywords": {
          "type":       "keyword_marker",
          "keywords_path": "${fess.dictionary.path}en/protwords.txt"
        },
        "finnish_stop": {
          "type":       "stop",
          "stopwords_path": "${fess.dictionary.path}fi/stopwords.txt"
        },
        "finnish_keywords": {
          "type":       "keyword_marker",
          "keywords_path": "${fess.dictionary.path}fi/protwords.txt"

			}
		case "FilterPrefix":
			z.FilterPrefix, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "FilterPrefix")
				return
			}
		case "Marker":
			z.Marker, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Marker")
				return
			}
		case "Limit":
			z.Limit, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "Limit")
				return
			}

	// Reports number of drives currently healing
	MinIOHealingDrives = "x-minio-healing-drives"

	// Header indicates if the delete marker should be preserved by client
	MinIOSourceDeleteMarker = "x-minio-source-deletemarker"

	// Header indicates if the delete marker version needs to be purged.
	MinIOSourceDeleteMarkerDelete = "x-minio-source-deletemarker-delete"

	// Header indicates permanent delete replication status.