chat

type Chat interface {
	SaveChat(msg *Message) (int64, error)
}

type Event int32

type Group interface {
	Chat
	GetGroupKey(appId string, plat int32, groupId int64) string
	GetGroupVersion(groupId int64, key string) int64
	UpdateGroupVersion(groupId int64, key string, version int64) error
	// InGroups 加过哪些群组
	InGroups(userId MemberId) ([]GroupUser, error)
	JoinGroup(groupId int64, key string, member *Member) error
	LeaveGroup(groupId int64, key string, memberId MemberId) error
	RemoveGroup(groupId int64, key string) error
	GroupMemberCount(groupId int64, key string) (int64, error)
	GetGroupMember(groupId int64, key string) ([]*Member, error)
}

type GroupModel struct {
	GroupId int64    `json:"id"`
	Member  []Member `json:"members,omitempty"`
}

type GroupUser struct {
	ID      int32 `json:"id"`
	GroupID int32 `json:"groupId"`
	UserID  int32 `json:"userId"`
}

type Member struct {
	UserId MemberId `json:"id"`
	Name   string   `json:"name,omitempty"`
}

type MemberId uint64

type Message struct {
	// 消息的来源ID（如果是私聊，则是接收用户id，如果是群聊，则是群组id）
	Id       int64    `json:"id"`
	FromId   MemberId `json:"fromid"`   // 消息的发送者id
	ToId     MemberId `json:"toid"`     // 接收者id
	Content  string   `json:"content"`  // 消息
	Type     string   `json:"type"`     // "group", "friend",聊天类型
	Avatar   string   `json:"avatar"`   //消息来源用户头像
	UserName string   `json:"username"` //消息来源用户名
	Mine     bool     `json:"mine"`     //是否我发送的消息，如果为true，则会显示在右方
}

type Option struct {
	SyncVersion bool
	SyncData    bool
	SaveEnabled bool
}

type Package struct {
	Event   Event  `json:"event"`
	Content string `json:"content"` //json格式化
}