message

type AtElement struct {
	Target  int64
	Display string
}

type ElementType int

type FaceElement struct {
	Index int32
	Name  string
}

type ForwardElement struct {
	ResId string
}

type ForwardMessage struct {
	Nodes []*ForwardNode
}

type ForwardNode struct {
	SenderId   int64
	SenderName string
	Time       int32
	Message    []IMessageElement
}

type FriendFlashPicElement struct {
	FriendImageElement
}

type FriendImageElement struct {
	ImageId string
	Md5     []byte
	Url     string
}

type GroupFileElement struct {
	Name  string
	Size  int64
	Path  string
	Busid int32
}

type GroupFlashPicElement struct {
	GroupImageElement
}

type GroupGift int

type GroupImageElement struct {
	ImageId string
	FileId  int64
	Size    int32
	Width   int32
	Height  int32
	Md5     []byte
	Url     string
}

type GroupMessage struct {
	Id         int32
	InternalId int32
	GroupCode  int64
	GroupName  string
	Sender     *Sender
	Time       int32
	Elements   []IMessageElement
}

type GroupShowPicElement struct {
	GroupImageElement
	EffectId int32
}

type GroupVoiceElement struct {
	Data []byte
	Ptt  *msg.Ptt
}

type IMessageElement interface {
	Type() ElementType
}

type IRichMessageElement interface {
	Pack() []*msg.Elem
}

type ImageElement struct {
	Filename string
	Size     int32
	Width    int32
	Height   int32
	Url      string
	Md5      []byte
	Data     []byte
}

type LightAppElement struct {
	Content string
}

type PrivateMessage struct {
	Id         int32
	InternalId int32
	Target     int64
	Time       int32
	Sender     *Sender
	Elements   []IMessageElement
}

type PrivateVoiceElement struct {
	Data []byte
	Ptt  *msg.Ptt
}

type RedBagElement struct {
	MsgType RedBagMessageType
	Title   string
}

type RedBagMessageType int

type ReplyElement struct {
	ReplySeq int32
	Sender   int64
	Time     int32
	Elements []IMessageElement
}

type RichMessage struct {
	Title      string
	Summary    string
	Brief      string
	Url        string
	PictureUrl string
	MusicUrl   string
}

type Sender struct {
	Uin      int64
	Nickname string
	CardName string
	IsFriend bool
}

type SendingMessage struct {
	Elements []IMessageElement
}

type ServiceElement struct {
	Id      int32
	Content string
	ResId   string
	SubType string
}

type ShortVideoElement struct {
	Name string
	Uuid []byte
	Size int32
	Md5  []byte
	Url  string
}

type TempMessage struct {
	Id        int32
	GroupCode int64
	GroupName string
	Sender    *Sender
	Elements  []IMessageElement
}

type TextElement struct {
	Content string
}

type VoiceElement struct {
	Name string
	Md5  []byte
	Size int32
	Url  string

	// --- sending ---
	Data []byte
}