Keep TV episodes as mixed-series representatives

internal/service/media_series.go

@@ -301,16 +301,8 @@ func groupMediaSeriesCards(items []model.Media) []SeriesCard {
 			if betterSeriesLinkMedia(item, card.LinkMedia) {
 				card.LinkMedia = item
 			}
-			currentArtwork := seriesArtworkScore(item)
-			representativeArtwork := seriesArtworkScore(card.Rep)
-			if currentArtwork > representativeArtwork {
+			if betterSeriesRepresentative(item, card.Rep) {
 				card.Rep = item
-			} else if currentArtwork == representativeArtwork {
-				cur := item.SeasonNum*10000 + item.EpisodeNum
-				rep := card.Rep.SeasonNum*10000 + card.Rep.EpisodeNum
-				if cur > 0 && (rep == 0 || cur < rep) {
-					card.Rep = item
-				}
 			}
 			continue
 		}
@@ -335,6 +327,27 @@ func groupMediaSeriesCards(items []model.Media) []SeriesCard {
 	return cards
 }
 
+func betterSeriesRepresentative(candidate, current model.Media) bool {
+	// A theatrical feature can have local poster.jpg/background.jpg files and
+	// therefore a higher artwork score than its TV episodes. Keep the TV row as
+	// the visible identity of a mixed series card so a movie cannot hijack the
+	// series title, overview, and artwork.
+	candidateTheatrical := mediaLooksLikeTheatricalFeature(&candidate)
+	currentTheatrical := mediaLooksLikeTheatricalFeature(&current)
+	if candidateTheatrical != currentTheatrical {
+		return !candidateTheatrical
+	}
+
+	currentArtwork := seriesArtworkScore(candidate)
+	representativeArtwork := seriesArtworkScore(current)
+	if currentArtwork != representativeArtwork {
+		return currentArtwork > representativeArtwork
+	}
+	cur := candidate.SeasonNum*10000 + candidate.EpisodeNum
+	rep := current.SeasonNum*10000 + current.EpisodeNum
+	return cur > 0 && (rep == 0 || cur < rep)
+}
+
 func seriesMediaTime(media model.Media) time.Time {
 	if releaseDate := strings.TrimSpace(media.ReleaseDate); releaseDate != "" {
 		if parsed, err := time.Parse("2006-01-02", releaseDate); err == nil {

internal/service/media_series_test.go

@@ -410,15 +410,19 @@ func TestGroupMediaSeriesCardsKeepsTheatricalMovieWithTVSeries(t *testing.T) {
 		LibraryID:  "anime",
 		Title:      "摇曳露营△",
 		Path:       `/media/动漫/摇曳露营△ (2018)/Season 01/摇曳露营△.S01E01.mkv`,
+		PosterURL:  "https://image.tmdb.org/t/p/w500/episode.jpg",
 		SeasonNum:  1,
 		EpisodeNum: 1,
 	}
 	theatrical := model.Media{
-		Base:      model.Base{ID: "theatrical"},
-		LibraryID: "anime",
-		Title:     "摇曳露营△ 剧场版",
-		Path:      `/media/动漫/摇曳露营△ (2018)/摇曳露营△ 剧场版 (2022)/Eiga.Yurukyan.2022.Bluray.mkv`,
-		TMDbID:    566466,
+		Base:        model.Base{ID: "theatrical"},
+		LibraryID:   "anime",
+		Title:       "摇曳露营△ 剧场版",
+		Path:        `/media/动漫/摇曳露营△ (2018)/摇曳露营△ 剧场版 (2022)/Eiga.Yurukyan.2022.Bluray.mkv`,
+		PosterURL:   "/media/动漫/摇曳露营△ (2018)/剧场版/poster.jpg",
+		BackdropURL: "/media/动漫/摇曳露营△ (2018)/剧场版/background.jpg",
+		Overview:    "剧场版简介",
+		TMDbID:      566466,
 	}
 
 	cards := groupMediaSeriesCards([]model.Media{episode, theatrical})
@@ -428,6 +432,12 @@ func TestGroupMediaSeriesCardsKeepsTheatricalMovieWithTVSeries(t *testing.T) {
 	if cards[0].Count != 2 {
 		t.Fatalf("series card count=%d, want TV episode plus theatrical movie", cards[0].Count)
 	}
+	if cards[0].Rep.ID != episode.ID {
+		t.Fatalf("series representative=%q, want TV episode %q", cards[0].Rep.ID, episode.ID)
+	}
+	if cards[0].Rep.Title != episode.Title {
+		t.Fatalf("series representative title=%q, want %q", cards[0].Rep.Title, episode.Title)
+	}
 }
 
 func TestGroupMediaSeriesCardsDoesNotCollideMovieAndTVExternalIDs(t *testing.T) {

web/src/utils/groupSeries.ts

@@ -480,20 +480,31 @@ export function groupSeries(items: Media[] = []): SeriesCard[] {
       if (betterSeriesLinkMedia(m, g.linkMedia)) {
         g.linkMedia = m
       }
-      const currentArtwork = artworkScore(m)
-      const representativeArtwork = artworkScore(g.rep)
-      if (currentArtwork > representativeArtwork) {
+      if (betterSeriesRepresentative(m, g.rep)) {
         g.rep = m
-      } else if (currentArtwork === representativeArtwork) {
-        const cur = (m.season_num ?? 0) * 10000 + (m.episode_num ?? 0)
-        const rep = (g.rep.season_num ?? 0) * 10000 + (g.rep.episode_num ?? 0)
-        if (cur > 0 && (rep === 0 || cur < rep)) g.rep = m
       }
     }
   }
   return Array.from(groups.values())
 }
 
+function betterSeriesRepresentative(candidate: Media, current: Media): boolean {
+  // A theatrical feature can have local poster/background artwork that scores
+  // higher than the TV poster. Keep the TV row as the series-card identity so
+  // the movie cannot replace the whole series title and overview.
+  const candidateTheatrical = isTheatricalFeature(candidate)
+  const currentTheatrical = isTheatricalFeature(current)
+  if (candidateTheatrical !== currentTheatrical) return !candidateTheatrical
+
+  const candidateArtwork = artworkScore(candidate)
+  const currentArtwork = artworkScore(current)
+  if (candidateArtwork !== currentArtwork) return candidateArtwork > currentArtwork
+
+  const cur = (candidate.season_num ?? 0) * 10000 + (candidate.episode_num ?? 0)
+  const rep = (current.season_num ?? 0) * 10000 + (current.episode_num ?? 0)
+  return cur > 0 && (rep === 0 || cur < rep)
+}
+
 function repeatedSeriesExternalRawKey(media: Media): string {
   if (!isEpisodeLike(media) && !pathLooksEpisodic(media)) return ''
   let identity = ''