comicshelf

type Comic struct {
	Id              int       `json:"id"`
	Title           string    `json:"title"`
	Urls            []Url     `json:"urls"`
	Thumbnail       string    `json:"thumbnail"`
	Format          string    `json:"format"`
	IssuerNumber    int       `json:"issuer_number"`
	OnSaleDate      time.Time `json:"on_sale_date"`
	Attribution     string    `json:"attribution"`
	AttributionLink string    `json:"attribution_link"`
	SeriesId        int       `json:"series_id"`
}

type ComicService interface {
	GetWeeklyComics(ctx context.Context, t time.Time) (Page[Comic], error)
	GetComic(ctx context.Context, id int) (Comic, error)
}

type Page[T any] struct {
	Limit   int `json:"limit"`
	Total   int `json:"total"`
	Count   int `json:"count"`
	Offset  int `json:"offset"`
	Results []T `json:"results"`
}

type Series struct {
	Comics    []Comic `json:"comics"`
	Id        int     `json:"id"`
	Title     string  `json:"title"`
	Urls      []Url   `json:"urls"`
	Thumbnail string  `json:"thumbnail"`
}

type SeriesService interface {
	GetComicsWithinSeries(ctx context.Context, id int) ([]Comic, error)
	GetSeries(ctx context.Context, id int) (Series, error)
}

type Set[T comparable] map[T]struct{}

type Url struct {
	Type string `json:"type"`
	Url  string `json:"url"`
}

type User struct {
	Id        int      `json:"id"`
	Following Set[int] `json:"following"`
}

type UserService interface {
	Following(ctx context.Context, userId, seriesId int) (bool, error)
	Followed(ctx context.Context, userId int) (Set[int], error)
	Follow(ctx context.Context, userId, seriesId int) error
	Unfollow(ctx context.Context, userId, seriesId int) error
}