}

// NewSDSWriter generates a new instance which conforms to SDSWriter interface
func NewSDSWriter(w io.Writer, format Format) SDSWriter {
	return &sdsWriter{
		w:      w,
		output: format,
	}
}

// sdsWriter is provided concrete implementation of SDSWriter
type sdsWriter struct {
	w      io.Writer
	output Format
}

	"path"
	"sort"
	"strings"
	"time"
)

// Writer provides sequential writing of a tar archive.
// [Writer.WriteHeader] begins a new file with the provided [Header],
// and then Writer can be treated as an io.Writer to supply that file's data.
type Writer struct {
	w    io.Writer
	pad  int64      // Amount of padding to write after current file entry
	curr fileWriter // Writer for current file entry

func (c *ConfigWriter) PrintSecretSummary() error {
	if c.ztunnelDump == nil {
		return fmt.Errorf("config writer has not been primed")
	}
	secretDump := c.ztunnelDump.Certificates
	w := new(tabwriter.Writer).Init(c.Stdout, 0, 8, 5, ' ', 0)
	fmt.Fprintln(w, "CERTIFICATE NAME\tTYPE\tSTATUS\tVALID CERT\tSERIAL NUMBER\tNOT AFTER\tNOT BEFORE")

	for _, secret := range secretDump {

	return nil
}

func (c *ConfigWriter) PrintFullSummary() error {
	_, _ = c.Stdout.Write([]byte("\n"))
	if err := c.PrintWorkloadSummary(WorkloadFilter{Verbose: true}); err != nil {
		return err
	}
	_, _ = c.Stdout.Write([]byte("\n"))
	if err := c.PrintServiceSummary(ServiceFilter{}); err != nil {
		return err
	}
	_, _ = c.Stdout.Write([]byte("\n"))
	if err := c.PrintPolicySummary(PolicyFilter{}); err != nil {
		return err
	}

	}

	var body bytes.Buffer
	writer := multipart.NewWriter(&body)
	part, e := writer.CreateFormFile("file", filename)
	if e != nil {
		return "", e
	}

	if _, e = part.Write(payload); e != nil {
		return "", e
	}
	writer.Close()

	r, e := http.NewRequest(http.MethodPost, reqURL, &body)
	if e != nil {
		return "", e
	}
	r.Header.Add("Content-Type", writer.FormDataContentType())

	return c.submitPost(r)

// implementation which is buggy on NUMA systems, we have to use a simpler
// io.Writer implementation alone avoids also unnecessary buffer copies,
// and as such incurred latencies.
var Discard io.Writer = discard{}

// discard is /dev/null for Golang.
type discard struct{}

func (discard) Write(p []byte) (int, error) {
	return len(p), nil
}

// DiscardReader discarded reader

				mappedResp[id] = string(resource.Value) + "\n"
			} else {
				_, _ = s.Writer.Write(resource.Value)
				_, _ = s.Writer.Write([]byte("\n"))
			}
		}
	}
	if len(mappedResp) > 0 {
		mresp, err := json.MarshalIndent(mappedResp, "", "  ")
		if err != nil {
			return err
		}
		_, _ = s.Writer.Write(mresp)
		_, _ = s.Writer.Write([]byte("\n"))
	}

	return nil

	return other
}

// WriteCSV - encodes to CSV data.
func (r *Record) WriteCSV(writer io.Writer, opts sql.WriteCSVOpts) error {
	w := csv.NewWriter(writer)
	w.Comma = opts.FieldDelimiter
	w.AlwaysQuote = opts.AlwaysQuote
	w.Quote = opts.Quote
	w.QuoteEscape = opts.QuoteEscape
	if err := w.Write(r.csvRecord); err != nil {
		return err
	}
	w.Flush()
	return w.Error()
}

)

// EndpointFilter is used to pass filter information into route based config writer print functions
type EndpointFilter struct {
	Address string
	Port    uint32
	Cluster string
	Status  string
}

// ConfigWriter is a writer for processing responses from the Envoy Admin config_dump endpoint
type ConfigWriter struct {
	Stdout   io.Writer
	clusters *clusters.Wrapper
}

)

// Comparator diffs between a config dump from Istiod and one from Envoy
type Comparator struct {
	envoy, istiod *configdump.Wrapper
	w             io.Writer
	context       int
	location      string
}

// NewComparator is a comparator constructor
func NewComparator(w io.Writer, istiodResponses map[string][]byte, envoyResponse []byte) (*Comparator, error) {
	c := &Comparator{}
	for _, resp := range istiodResponses {