"github.com/minio/minio/internal/config/api"
	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/mcontext"
)

type apiConfig struct {
	mu sync.RWMutex

	requestsPool           chan struct{}
	clusterDeadline        time.Duration
	listQuorum             string
	corsAllowOrigins       []string
	replicationPriority    string
	replicationMaxWorkers  int

	newBuf := dst
	if len(dst) != len(p.readers) {
		newBuf = make([][]byte, len(p.readers))
	} else {
		for i := range newBuf {
			newBuf[i] = newBuf[i][:0]
		}
	}
	var newBufLK sync.RWMutex

	if p.offset+p.shardSize > p.shardFileSize {
		p.shardSize = p.shardFileSize - p.offset
	}
	if p.shardSize == 0 {
		return newBuf, nil
	}

	readTriggerCh := make(chan bool, len(p.readers))

	// Map of local drives to this node, this is set during server startup,
	// disk reconnect and mutated by HealFormat. Hold globalLocalDrivesMu to access.
	globalLocalDrivesMap map[string]StorageAPI
	globalLocalDrivesMu  sync.RWMutex

	globalDriveMonitoring = env.Get("_MINIO_DRIVE_ACTIVE_MONITORING", config.EnableOn) == config.EnableOn

	// Is MINIO_CI_CD set?
	globalIsCICD bool

	globalRootDiskThreshold uint64

	// slice of available heal result records
	Items []madmin.HealResultItem `json:"Items"`
}

// structure to hold state of all heal sequences in server memory
type allHealState struct {
	sync.RWMutex

	// map of heal path to heal sequence
	healSeqMap map[string]*healSequence // Indexed by endpoint
	// keep track of the healing status of disks in the memory

	firstToDisconnect time.Time // time at which the first peer disconnects from us
	RXSample          uint64    // RX bytes between lastToConnect and firstToDisconnect
	activeConnections uint64
	sync.RWMutex
}

func (n *netPerfRX) Connect() {
	n.Lock()
	defer n.Unlock()
	n.activeConnections++
	atomic.StoreUint64(&n.RX, 0)
	n.lastToConnect = time.Now()
}

func (n *netPerfRX) Disconnect() {

		},
	}
)

// StorageClass - holds storage class information
type StorageClass struct {
	Parity int
}

// ConfigLock is a global lock for storage-class config
var ConfigLock sync.RWMutex

// Config storage class configuration
type Config struct {
	Standard    StorageClass `json:"standard"`
	RRS         StorageClass `json:"rrs"`
	Optimize    string       `json:"optimize"`
	inlineBlock int64

}

func (e expiryTask) OpHash() uint64 {
	return xxh3.HashString(e.objInfo.Bucket + e.objInfo.Name)
}

// expiryState manages all ILM related expiration activities.
type expiryState struct {
	mu      sync.RWMutex
	workers atomic.Pointer[[]chan expiryOp]

	ctx    context.Context
	objAPI ObjectLayer

	stats expiryStats
}

// PendingTasks returns the number of pending ILM expiry tasks.

	// TraceOutput will print debug information on non-200 calls if set.
	TraceOutput io.Writer // Debug trace output

	httpClient *http.Client
	url        *url.URL
	auth       func() string

	sync.RWMutex // mutex for lastErr
	lastErr      error
	lastErrTime  time.Time
}

type restError string

func (e restError) Error() string {
	return string(e)
}

func (e restError) Timeout() bool {

	return pathClean(strings.TrimSuffix(strings.TrimPrefix(s, prefix), suffix))
}

// IAMEtcdStore implements IAMStorageAPI
type IAMEtcdStore struct {
	sync.RWMutex

	*iamCache

	usersSysType UsersSysType

	client *etcd.Client
}

func newIAMEtcdStore(client *etcd.Client, usersSysType UsersSysType) *IAMEtcdStore {
	return &IAMEtcdStore{

	"github.com/minio/pkg/v3/sync/errgroup"
	"golang.org/x/sync/singleflight"
)

// BucketMetadataSys captures all bucket metadata for a given cluster.
type BucketMetadataSys struct {
	objAPI ObjectLayer

	sync.RWMutex
	initialized bool
	group       *singleflight.Group
	metadataMap map[string]BucketMetadata
}

// Count returns number of bucket metadata map entries.
func (sys *BucketMetadataSys) Count() int {
	sys.RLock()