package bpool

import "github.com/klauspost/reedsolomon"

// BytePoolCap implements a leaky pool of []byte in the form of a bounded channel.
type BytePoolCap struct {
	c    chan []byte
	w    int
	wcap int
}

// NewBytePoolCap creates a new BytePool bounded to the given maxSize, with new
// byte arrays sized based on width.
func NewBytePoolCap(maxSize uint64, width int, capwidth int) (bp *BytePoolCap) {

				if err != nil {
					// ignore history file if not readable.
					continue
				}

				data, err = decryptData(data, obj.Name)
				if err != nil {
					// ignore history file that cannot be loaded.
					continue
				}

				cfgEntry.Data = string(data)
			}
			configHistory = append(configHistory, cfgEntry)
			count--
			if count == 0 {
				break
			}
		}
		if !res.IsTruncated {

		}
	}
	for {
		// Handle the extremely unlikely scenario that we wrapped.
		if _, loaded := c.outgoing.LoadOrStore(client.MuxID, client); client.MuxID != 0 && !loaded {
			if debugReqs {
				_, found := c.outgoing.Load(client.MuxID)
				fmt.Println(client.MuxID, c.String(), "Connection.newMuxClient: RELOADED MUX. loaded:", loaded, "found:", found)
			}
			return client, nil
		}
		client.MuxID = atomic.AddUint64(&c.NextID, 1)

}

// reset the value of the Global server config.
// set it to `nil`.
func resetGlobalConfig() {
	// hold the mutex lock before a new config is assigned.
	globalServerConfigMu.Lock()
	// Save the loaded config globally.
	globalServerConfig = nil
	globalServerConfigMu.Unlock()
}

func resetGlobalEndpoints() {
	globalEndpoints = EndpointServerPools{}
}

func resetGlobalIsErasure() {

		}
		uploadedParts = append(uploadedParts, minio.CompletePart{
			PartNumber: pInfo.PartNumber,
			ETag:       pInfo.ETag,
		})
	}

	// really big value but its okay on heavily loaded systems. This is just tail end timeout.
	cctx, ccancel := context.WithTimeout(ctx, 10*time.Minute)
	defer ccancel()
	_, err = c.CompleteMultipartUpload(cctx, bucket, object, uploadID, uploadedParts, minio.PutObjectOptions{

	//
	// An in-memory cache must be replaced only if we know for sure that the
	// values loaded from disk are not stale. They might be stale if the
	// cached.updatedAt is more recent than the refresh cycle began.
	if cache.updatedAt.Before(loadedAt) {
		// No one has updated anything since the config was loaded,
		// so we just replace whatever is on the disk into memory.
		cache.iamGroupPolicyMap = newCache.iamGroupPolicyMap

	if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	// freshly retrieve the config so that default values are loaded for reset config
	if cfg, err = getValidConfig(objectAPI); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	dynamic := config.SubSystemsDynamic.Contains(subSys)

	return readServerConfig(GlobalContext, objAPI, nil)
}

// loadConfig - loads a new config from disk, overrides params
// from env if found and valid
// data is optional. If nil it will be loaded from backend.
func loadConfig(objAPI ObjectLayer, data []byte) error {
	bootstrapTraceMsg("load the configuration")
	srvCfg, err := readServerConfig(GlobalContext, objAPI, data)
	if err != nil {
		return err
	}

	}
}

//go:generate msgp -file $GOFILE -unexported
type poolMeta struct {
	Version int          `msg:"v"`
	Pools   []PoolStatus `msg:"pls"`

	// Value should not be saved when we have not loaded anything yet.
	dontSave bool `msg:"-"`
}

// A decommission resumable tells us if decommission is worth
// resuming upon restart of a cluster.
func (p *poolMeta) returnResumablePools() []PoolStatus {

	// because there will be a policy mapping stored on drives whose
	// filename is this parentUser: therefore, it needs to have only valid
	// filename characters and needs to have bounded length.
	{
		h := sha256.New()
		h.Write([]byte("openid:" + subFromToken + ":" + issFromToken))
		bs := h.Sum(nil)
		cred.ParentUser = base64.RawURLEncoding.EncodeToString(bs)
	}