package cmd

import (
	"context"
	"fmt"
	"io"
	"sync"
)

// Writes in parallel to writers
type parallelWriter struct {
	writers     []io.Writer
	writeQuorum int
	errs        []error
}

// Write writes data to writers in parallel.
func (p *parallelWriter) Write(ctx context.Context, blocks [][]byte) error {
	var wg sync.WaitGroup

	for i := range p.writers {

// EncodeMsg implements msgp.Encodable
func (z *BucketReplicationResyncStatus) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 4
	// write "v"
	err = en.Append(0x84, 0xa1, 0x76)
	if err != nil {
		return
	}
	err = en.WriteInt(z.Version)
	if err != nil {
		err = msgp.WrapError(err, "Version")
		return
	}
	// write "brs"
	err = en.Append(0xa3, 0x62, 0x72, 0x73)
	if err != nil {
		return
	}

}

// EncodeMsg implements msgp.Encodable
func (z AccElem) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 3
	// write "Total"
	err = en.Append(0x83, 0xa5, 0x54, 0x6f, 0x74, 0x61, 0x6c)
	if err != nil {
		return
	}
	err = en.WriteInt64(z.Total)
	if err != nil {
		err = msgp.WrapError(err, "Total")
		return
	}
	// write "Size"
	err = en.Append(0xa4, 0x53, 0x69, 0x7a, 0x65)
	if err != nil {
		return

		return
	}
	// write "Name"
	err = en.Append(0xa4, 0x4e, 0x61, 0x6d, 0x65)
	if err != nil {
		return
	}
	err = en.WriteString(z.Name)
	if err != nil {
		err = msgp.WrapError(err, "Name")
		return
	}
	// write "Purge"
	err = en.Append(0xa5, 0x50, 0x75, 0x72, 0x67, 0x65)
	if err != nil {
		return
	}
	// map header, size 1
	// write "RetainVersions"

	processLocksWriteTotal          = "locks_write_total"
	processCPUTotalSeconds          = "cpu_total_seconds"
	processGoRoutineTotal           = "go_routine_total"
	processIORCharBytes             = "io_rchar_bytes"
	processIOReadBytes              = "io_read_bytes"
	processIOWCharBytes             = "io_wchar_bytes"
	processIOWriteBytes             = "io_write_bytes"
	processStartTimeSeconds         = "start_time_seconds"

			bugLogIf(ctx, err)
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}

		// Write a version for making *incompatible* changes.
		// The AdminClient will reject any version it does not know.
		if publicKey == nil {
			w.Write([]byte{1})
			w.Write(key[:])
		}

		stream, err := sio.AES_256_GCM.Stream(key[:])
		if err != nil {
			bugLogIf(ctx, err)
			return

	}
	// write "ob"
	err = en.Append(0xa2, 0x6f, 0x62)
	if err != nil {
		return
	}
	err = en.WriteInt64(z.Objects)
	if err != nil {
		err = msgp.WrapError(err, "Objects")
		return
	}
	// write "dm"
	err = en.Append(0xa2, 0x64, 0x6d)
	if err != nil {
		return
	}
	err = en.WriteInt64(z.DeleteMarkers)
	if err != nil {
		err = msgp.WrapError(err, "DeleteMarkers")
		return
	}
	// write "obf"

func (z *ServerSystemConfig) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 3
	// write "NEndpoints"
	err = en.Append(0x83, 0xaa, 0x4e, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x73)
	if err != nil {
		return
	}
	err = en.WriteInt(z.NEndpoints)
	if err != nil {
		err = msgp.WrapError(err, "NEndpoints")
		return
	}
	// write "CmdLines"

	// iostat related
	driveReadsPerSec    = "reads_per_sec"
	driveReadsKBPerSec  = "reads_kb_per_sec"
	driveReadsAwait     = "reads_await"
	driveWritesPerSec   = "writes_per_sec"
	driveWritesKBPerSec = "writes_kb_per_sec"
	driveWritesAwait    = "writes_await"
	drivePercUtil       = "perc_util"
)

var (
	driveUsedBytesMD = NewGaugeMD(driveUsedBytes,
		"Total storage used on a drive in bytes", allDriveLabels...)

	// its required to write the policies first before running tests on GetBucketPolicy.
	for i, testPolicy := range putTestPolicies {
		// obtain the put bucket policy request body.
		bucketPolicyStr := fmt.Sprintf(bucketPolicyTemplate, testPolicy.bucketName, testPolicy.bucketName)
		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
		recV4 := httptest.NewRecorder()