service

type FindLinksRequest struct {
	URL      string
	Username string
}

type FindLinksResponse struct {
	Links []string
	Err   error
}

type GetListRequest struct {
	Username string
}

type GetListResponse struct {
	Msg string
	Err error
}

type Message struct {
	URL      string   `bson:"url"`
	Title    string   `bson:"title"`
	Links    []string `bson:"links,omitempty"`
	Username string   `bson:"username"`
}

type Service interface {
	FindLinks(ctx context.Context, m *Message) (*Message, error)
	GetList(ctx context.Context, username string) (string, error)
}

type Store interface {
	Save(ctx context.Context, m *Message) error
	FindByURL(ctx context.Context, url string) (*Message, error)
	FindByUsername(ctx context.Context, username string) ([]Message, error)
}