rpc

type Args struct {
	Version       uint32 `json:"version,omitempty"`
	Uin           int64  `json:"uin,omitempty"`
	Seq           int32  `json:"seq,omitempty"`
	ServiceMethod string `json:"service_method,omitempty"`
	ReserveField  []byte `json:"reserve_field,omitempty"`
	Payload       []byte `json:"-"`
}

type Call struct {
	ServiceMethod string
	Seq           int32
	Version       uint32
	Args          *Args
	Reply         *Reply
	Error         error
	Done          chan *Call
}

type Client interface {
	BindCancelFunc(cancel context.CancelFunc)

	DialDefault(ctx context.Context) error
	Dial(ctx context.Context, network, address string) error

	Close() error
	Go(serviceMethod string, args *Args, reply *Reply, done chan *Call) *Call
	Call(serviceMethod string, args *Args, reply *Reply) error
	Handle(serviceMethod string, reply *Reply) (*Args, error)
	Register(serviceMethod string, handler Handler) error

	GetNextSeq() int32
	GetFakeSource(uin int64) *fake.Source
	GetServerTime() int64
	GetSession(uin int64) *Session
	GetTickets(uin int64) *Tickets
	SetSession(uin int64, tlvs map[uint16]tlv.Codec)
	SetSessionAuth(uin int64, auth []byte)
	SetSessionCookie(uin int64, cookie []byte)
	SetTickets(uin int64, tlvs map[uint16]tlv.Codec)
}

type Codec interface {
	Close() error

	ReadResponseHeader(*Response) error
	ReadResponseBody(*Reply) error
	WriteRequest(*Request, *Args) error
}

type Handler func(reply *Reply) (*Args, error)

type Key16Bytes [16]byte

type Reply struct {
	Version       uint32 `json:"version,omitempty"`
	Uin           int64  `json:"uin,omitempty"`
	Seq           int32  `json:"seq,omitempty"`
	Code          int32  `json:"code,omitempty"`
	Message       string `json:"message,omitempty"`
	ServiceMethod string `json:"service_method,omitempty"`
	Cookie        []byte `json:"cookie,omitempty"`
	Flag          uint32 `json:"flag,omitempty"`
	ReserveField  []byte `json:"reserve_field,omitempty"`
	Payload       []byte `json:"-"`
}

type Request struct {
	ServiceMethod string `json:"service_method,omitempty"`
	Seq           int32  `json:"seq,omitempty"`
	Version       uint32 `json:"version,omitempty"`
	EncryptType   uint8  `json:"encrypt_type,omitempty"`
	Username      string `json:"username,omitempty"`
}

type Response struct {
	ServiceMethod string `json:"service_method,omitempty"`
	Seq           int32  `json:"seq,omitempty"`
	Version       uint32 `json:"version,omitempty"`
	EncryptType   uint8  `json:"encrypt_type,omitempty"`
	Username      string `json:"username,omitempty"`
}

type Sender interface {
	Close() error
	Go(serviceMethod string, args *Args, reply *Reply, done chan *Call) *Call

	Run(ctx context.Context, cancel context.CancelFunc)
}

type Session struct {
	Auth   []byte `json:"auth,omitempty"`
	Cookie []byte `json:"cookie,omitempty"`

	RandomKey  Key16Bytes `json:"random_key,omitempty"`
	RandomPass Key16Bytes `json:"random_pass,omitempty"`

	PrivateKey   *ecdh.PrivateKey `json:"-"`
	KeyVersion   int16            `json:"key_version,omitempty"`
	SharedSecret Key16Bytes       `json:"shared_secret,omitempty"`
}

type Ticket struct {
	Key Key16Bytes `json:"key,omitempty"`
	Sig []byte     `json:"sig,omitempty"`
	Exp int64      `json:"exp,omitempty"`
	Iss int64      `json:"iss,omitempty"`
}

type Tickets struct {
	A1       *Ticket           `json:"a1,omitempty"`
	A2       *Ticket           `json:"a2,omitempty"`
	A5       *Ticket           `json:"a5,omitempty"`
	A8       *Ticket           `json:"a8,omitempty"`
	D2       *Ticket           `json:"d2,omitempty"`
	LSKey    *Ticket           `json:"lskey,omitempty"`
	SKey     *Ticket           `json:"skey,omitempty"`
	SID      *Ticket           `json:"sid,omitempty"`
	Sig64    *Ticket           `json:"sig64,omitempty"`
	SuperKey *Ticket           `json:"super_key,omitempty"`
	ST       *Ticket           `json:"st,omitempty"`
	STWeb    *Ticket           `json:"stweb,omitempty"`
	VKey     *Ticket           `json:"vkey,omitempty"`
	Domains  map[string]string `json:"domains,omitempty"`
	KSID     []byte            `json:"ksid,omitempty"`
}