package notify

import (
	"context"
	"net"
	"time"
)

type Client interface {
	SetDefaultLink(func(message *Message))
	SetLink(string, func(*Message))
	SetFileHandler(func(FileEvent))
	SetStreamHandler(func(StreamAcceptInfo) error)
	SetRecordStreamHandler(func(RecordAcceptInfo) error)
	SetBulkHandler(func(BulkAcceptInfo) error)
	SetTransferHandler(func(TransferAcceptInfo) (TransferReceiveOptions, error))
	GetStreamConfig() StreamConfig
	SetStreamConfig(StreamConfig)
	SetTransferResumeStore(TransferResumeStore)
	RecoverTransferSnapshots(context.Context) error
	SetFileReceiveDir(dir string) error
	send(msg TransferMsg) (WaitMsg, error)
	sendEnvelope(env Envelope) error
	sendWait(msg TransferMsg, timeout time.Duration) (Message, error)
	Send(key string, value MsgVal) error
	SendWait(key string, value MsgVal, timeout time.Duration) (Message, error)
	SendWaitObj(key string, value interface{}, timeout time.Duration) (Message, error)
	SendCtx(ctx context.Context, key string, value MsgVal) (Message, error)
	Reply(m Message, value MsgVal) error
	// Deprecated: ExchangeKey drives the legacy RSA-based key exchange flow.
	// Prefer UseModernPSKClient.
	ExchangeKey(newKey []byte) error
	Connect(network string, addr string) error
	ConnectTimeout(network string, addr string, timeout time.Duration) error
	ConnectByConn(conn net.Conn) error
	ConnectByFactory(ctx context.Context, dialFn func(context.Context) (net.Conn, error)) error
	// Deprecated: SkipExchangeKey only controls the legacy RSA-based key exchange.
	SkipExchangeKey() bool
	// Deprecated: SetSkipExchangeKey only controls the legacy RSA-based key exchange.
	SetSkipExchangeKey(bool)

	GetMsgEn() func([]byte, []byte) []byte
	// Deprecated: SetMsgEn overrides the transport codec directly.
	// Prefer UseModernPSKClient or UseLegacySecurityClient.
	SetMsgEn(func([]byte, []byte) []byte)
	GetMsgDe() func([]byte, []byte) []byte
	// Deprecated: SetMsgDe overrides the transport codec directly.
	// Prefer UseModernPSKClient or UseLegacySecurityClient.
	SetMsgDe(func([]byte, []byte) []byte)

	Heartbeat()
	HeartbeatPeroid() time.Duration
	SetHeartbeatPeroid(duration time.Duration)

	GetSecretKey() []byte
	// Deprecated: SetSecretKey injects a raw transport key directly.
	// Prefer UseModernPSKClient or UseLegacySecurityClient.
	SetSecretKey(key []byte)
	// Deprecated: RsaPubKey exposes the legacy RSA handshake key. Prefer UseModernPSKClient.
	RsaPubKey() []byte
	// Deprecated: SetRsaPubKey configures the legacy RSA handshake key. Prefer UseModernPSKClient.
	SetRsaPubKey([]byte)

	Stop() error
	StopMonitorChan() <-chan struct{}
	Status() Status
	ShowError(bool)
	DebugMode(bool)
	IsDebugMode() bool

	GetSequenceEn() func(interface{}) ([]byte, error)
	SetSequenceEn(func(interface{}) ([]byte, error))
	GetSequenceDe() func([]byte) (interface{}, error)
	SetSequenceDe(func([]byte) (interface{}, error))
	SendObjCtx(ctx context.Context, key string, val interface{}) (Message, error)
	SendObj(key string, val interface{}) error
	OpenStream(ctx context.Context, opt StreamOpenOptions) (Stream, error)
	OpenRecordStream(ctx context.Context, opt RecordOpenOptions) (RecordStream, error)
	OpenBulk(ctx context.Context, opt BulkOpenOptions) (Bulk, error)
	SendTransfer(ctx context.Context, opt TransferSendOptions) (TransferHandle, error)
	SendFile(ctx context.Context, filePath string) error
}