Implement scraping movies by URL (#709)

* api/urlbuilders/movie: Auto format.

* graphql+pkg+ui: Implement scraping movies by URL.

This patch implements the missing required boilerplate for scraping
movies by URL, using performers and scenes as a reference.

Although this patch contains a big chunck of ground work for enabling
scraping movies by fragment, the feature would require additional
changes to be completely implemented and was not tested.

* graphql+pkg+ui: Scrape movie studio.

Extends and corrects the movie model for the ability to store and
dereference studio IDs with received studio string from the scraper.
This was done with Scenes as a reference. For simplicity the duplication
of having `ScrapedMovieStudio` and `ScrapedSceneStudio` was kept, which
should probably be refactored to be the same type in the model in the
future.

* ui/movies: Add movie scrape dialog.

Adds possibility to update existing movie entries with the URL scraper.

For this the MovieScrapeDialog.tsx was implemented with Performers and
Scenes as a reference. In addition DurationUtils needs to be called one
time for converting seconds from the model to the string that is
displayed in the component. This seemed the least intrusive to me as it
kept a ScrapeResult<string> type compatible with ScrapedInputGroupRow.

pkg/scraper/scrapers.go

@@ -132,6 +132,20 @@ func (c Cache) ListSceneScrapers() []*models.Scraper {
 	return ret
 }
 
+// ListMovieScrapers returns a list of scrapers that are capable of
+// scraping scenes.
+func (c Cache) ListMovieScrapers() []*models.Scraper {
+	var ret []*models.Scraper
+	for _, s := range c.scrapers {
+		// filter on type
+		if s.supportsMovies() {
+			ret = append(ret, s.toScraper())
+		}
+	}
+
+	return ret
+}
+
 func (c Cache) findScraper(scraperID string) *config {
 	for _, s := range c.scrapers {
 		if s.ID == scraperID {
@@ -360,3 +374,55 @@ func (c Cache) ScrapeSceneURL(url string) (*models.ScrapedScene, error) {
 
 	return nil, nil
 }
+
+func matchMovieStudio(s *models.ScrapedMovieStudio) error {
+	qb := models.NewStudioQueryBuilder()
+
+	studio, err := qb.FindByName(s.Name, nil, true)
+
+	if err != nil {
+		return err
+	}
+
+	if studio == nil {
+		// ignore - cannot match
+		return nil
+	}
+
+	id := strconv.Itoa(studio.ID)
+	s.ID = &id
+	return nil
+}
+
+// ScrapeMovieURL uses the first scraper it finds that matches the URL
+// provided to scrape a movie. If no scrapers are found that matches
+// the URL, then nil is returned.
+func (c Cache) ScrapeMovieURL(url string) (*models.ScrapedMovie, error) {
+	for _, s := range c.scrapers {
+		if s.matchesMovieURL(url) {
+			ret, err := s.ScrapeMovieURL(url, c.globalConfig)
+			if err != nil {
+				return nil, err
+			}
+
+			if ret.Studio != nil {
+				err := matchMovieStudio(ret.Studio)
+				if err != nil {
+					return nil, err
+				}
+			}
+
+			// post-process - set the image if applicable
+			if err := setMovieFrontImage(ret, c.globalConfig); err != nil {
+				logger.Warnf("Could not set front image using URL %s: %s", *ret.FrontImage, err.Error())
+			}
+			if err := setMovieBackImage(ret, c.globalConfig); err != nil {
+				logger.Warnf("Could not set back image using URL %s: %s", *ret.BackImage, err.Error())
+			}
+
+			return ret, nil
+		}
+	}
+
+	return nil, nil
+}