datasource

type DataSource interface {

	// 消息
	GetMessages(ctx context.Context, startTime, endTime time.Time, talker string, sender string, keyword string, limit, offset int) ([]*model.Message, error)

	// 联系人
	GetContacts(ctx context.Context, key string, limit, offset int) ([]*model.Contact, error)

	// 群聊
	GetChatRooms(ctx context.Context, key string, limit, offset int) ([]*model.ChatRoom, error)

	// 最近会话
	GetSessions(ctx context.Context, key string, limit, offset int) ([]*model.Session, error)

	// 媒体
	GetMedia(ctx context.Context, _type string, key string) (*model.Media, error)

	// 设置回调函数
	SetCallback(group string, callback func(event fsnotify.Event) error) error

	Close() error
}