const (
	EventNodeCreated         = EventType(1)
	EventNodeDeleted         = EventType(2)
	EventNodeDataChanged     = EventType(3)
	EventNodeChildrenChanged = EventType(4)

	EventSession     = EventType(-1)
	EventNotWatching = EventType(-2)
)

const (
	StateUnknown           = State(-1)
	StateDisconnected      = State(0)
	StateConnecting        = State(1)
	StateSyncConnected     = State(3)
	StateAuthFailed        = State(4)
	StateConnectedReadOnly = State(5)
	StateSaslAuthenticated = State(6)
	StateExpired           = State(-112)

	StateConnected  = State(100)
	StateHasSession = State(101)
)

const (
	FlagEphemeral = 1
	FlagSequence  = 2
)

const (
	PermRead = 1 << iota
	PermWrite
	PermCreate
	PermDelete
	PermAdmin
	PermAll = 0x1f
)

const (
	DefaultServerTickTime                 = 2000
	DefaultServerInitLimit                = 10
	DefaultServerSyncLimit                = 5
	DefaultServerAutoPurgeSnapRetainCount = 3
	DefaultPeerPort                       = 2888
	DefaultLeaderElectionPort             = 3888
)

const (
	DefaultPort = 2181
)

var (
	ErrConnectionClosed        = errors.New("zk: connection closed")
	ErrUnknown                 = errors.New("zk: unknown error")
	ErrAPIError                = errors.New("zk: api error")
	ErrNoNode                  = errors.New("zk: node does not exist")
	ErrNoAuth                  = errors.New("zk: not authenticated")
	ErrBadVersion              = errors.New("zk: version conflict")
	ErrNoChildrenForEphemerals = errors.New("zk: ephemeral nodes may not have children")
	ErrNodeExists              = errors.New("zk: node already exists")
	ErrNotEmpty                = errors.New("zk: node has children")
	ErrSessionExpired          = errors.New("zk: session has been expired by the server")
	ErrInvalidACL              = errors.New("zk: invalid ACL specified")
	ErrAuthFailed              = errors.New("zk: client authentication failed")
	ErrClosing                 = errors.New("zk: zookeeper is closing")
	ErrNothing                 = errors.New("zk: no server responsees to process")
	ErrSessionMoved            = errors.New("zk: session moved to another server, so operation is ignored")
)

var (
	ErrDeadlock  = errors.New("zk: trying to acquire a lock twice")
	ErrNotLocked = errors.New("zk: not locked")
)

var (
	ErrUnhandledFieldType = errors.New("zk: unhandled field type")
	ErrPtrExpected        = errors.New("zk: encode/decode expect a non-nil pointer to struct")
	ErrShortBuffer        = errors.New("zk: buffer too small")
)

var ErrNoServer = errors.New("zk: could not connect to a server")

type ACL struct {
	Perms  int32
	Scheme string
	ID     string
}

type CheckVersionRequest PathVersionRequest

type Conn struct {
	// contains filtered or unexported fields
}

type CreateRequest struct {
	Path  string
	Data  []byte
	Acl   []ACL
	Flags int32
}

type DeleteRequest PathVersionRequest

type Dialer func(network, address string, timeout time.Duration) (net.Conn, error)

type ErrCode int32

type ErrMissingServerConfigField string

type Event struct {
	Type   EventType
	State  State
	Path   string // For non-session events, the path of the watched node.
	Err    error
	Server string // For connection events
}

type EventType int32

type Lock struct {
	// contains filtered or unexported fields
}

type Mode uint8

const (
	ModeUnknown    Mode = iota
	ModeLeader     Mode = iota
	ModeFollower   Mode = iota
	ModeStandalone Mode = iota
)

type MultiResponse struct {
	Stat   *Stat
	String string
}

type PathVersionRequest struct {
	Path    string
	Version int32
}

type Server struct {
	JarPath        string
	ConfigPath     string
	Stdout, Stderr io.Writer
	// contains filtered or unexported fields
}

type ServerClient struct {
	Queued        int64
	Received      int64
	Sent          int64
	SessionID     int64
	Lcxid         int64
	Lzxid         int64
	Timeout       int32
	LastLatency   int32
	MinLatency    int32
	AvgLatency    int32
	MaxLatency    int32
	Established   time.Time
	LastResponse  time.Time
	Addr          string
	LastOperation string // maybe?
	Error         error
}

type ServerClients struct {
	Clients []*ServerClient
	Error   error
}

type ServerConfig struct {
	TickTime                 int    // Number of milliseconds of each tick
	InitLimit                int    // Number of ticks that the initial synchronization phase can take
	SyncLimit                int    // Number of ticks that can pass between sending a request and getting an acknowledgement
	DataDir                  string // Direcrory where the snapshot is stored
	ClientPort               int    // Port at which clients will connect
	AutoPurgeSnapRetainCount int    // Number of snapshots to retain in dataDir
	AutoPurgePurgeInterval   int    // Purge task internal in hours (0 to disable auto purge)
	Servers                  []ServerConfigServer
}

type ServerConfigServer struct {
	ID                 int
	Host               string
	PeerPort           int
	LeaderElectionPort int
}

type ServerStats struct {
	Sent        int64
	Received    int64
	NodeCount   int64
	MinLatency  int64
	AvgLatency  int64
	MaxLatency  int64
	Connections int64
	Outstanding int64
	Epoch       int32
	Counter     int32
	BuildTime   time.Time
	Mode        Mode
	Version     string
	Error       error
}

type SetDataRequest struct {
	Path    string
	Data    []byte
	Version int32
}

type Stat struct {
	Czxid          int64 // The zxid of the change that caused this znode to be created.
	Mzxid          int64 // The zxid of the change that last modified this znode.
	Ctime          int64 // The time in milliseconds from epoch when this znode was created.
	Mtime          int64 // The time in milliseconds from epoch when this znode was last modified.
	Version        int32 // The number of changes to the data of this znode.
	Cversion       int32 // The number of changes to the children of this znode.
	Aversion       int32 // The number of changes to the ACL of this znode.
	EphemeralOwner int64 // The session id of the owner of this znode if the znode is an ephemeral node. If it is not an ephemeral node, it will be zero.
	DataLength     int32 // The length of the data field of this znode.
	NumChildren    int32 // The number of children of this znode.
	Pzxid          int64 // last modified children
}

type State int32

type TestCluster struct {
	Path    string
	Servers []TestServer
}

type TestServer struct {
	Port int
	Path string
	Srv  *Server
}