fix: show latest discover posters

internal/handler/discover_extra.go

@@ -25,9 +25,12 @@ type discoverSectionDef struct {
 var discoverSectionCatalog = []discoverSectionDef{
 	{Key: "tmdb_trending_day", Label: "TMDb 今日趋势", Provider: "tmdb"},
 	{Key: "tmdb_trending_week", Label: "TMDb 本周热门", Provider: "tmdb"},
+	{Key: "tmdb_latest_movie", Label: "TMDb 最新电影", Provider: "tmdb"},
+	{Key: "tmdb_latest_tv", Label: "TMDb 最新剧集", Provider: "tmdb"},
 	{Key: "tmdb_popular_movie", Label: "TMDb 热门电影", Provider: "tmdb"},
 	{Key: "tmdb_popular_tv", Label: "TMDb 热门剧集", Provider: "tmdb"},
 	{Key: "tmdb_top_rated_movie", Label: "TMDb 高分电影", Provider: "tmdb"},
+	{Key: "tmdb_upcoming_movie", Label: "TMDb 即将上映", Provider: "tmdb"},
 	{Key: "douban_hot_movie", Label: "豆瓣热门电影", Provider: "douban"},
 	{Key: "douban_hot_tv", Label: "豆瓣热门剧集", Provider: "douban"},
 	{Key: "douban_top_movie", Label: "豆瓣高分电影", Provider: "douban"},
@@ -94,7 +97,7 @@ func enabledDiscoverSections(ctx context.Context, svc *service.Container) []disc
 }
 
 func defaultDiscoverSectionKeys(ctx context.Context, svc *service.Container) []string {
-	preferred := []string{"tmdb_trending_day", "douban_hot_movie", "douban_hot_tv", "bangumi_calendar"}
+	preferred := []string{"tmdb_trending_day", "tmdb_latest_movie", "tmdb_latest_tv", "douban_hot_movie", "douban_hot_tv", "bangumi_calendar"}
 	enabled := map[string]struct{}{}
 	for _, section := range enabledDiscoverSections(ctx, svc) {
 		enabled[section.Key] = struct{}{}
@@ -124,7 +127,7 @@ func discoverSectionProvider(key string) string {
 		}
 	}
 	switch key {
-	case "trending_day", "trending_week", "popular_movie", "popular_tv", "top_rated_movie", "upcoming_movie":
+	case "trending_day", "trending_week", "latest_movie", "latest_tv", "popular_movie", "popular_tv", "top_rated_movie", "upcoming_movie":
 		return "tmdb"
 	default:
 		return ""
@@ -144,8 +147,8 @@ func discoverProviderEnabled(ctx context.Context, svc *service.Container, provid
 
 func discoverSectionItems(ctx context.Context, svc *service.Container, k string) ([]service.ExternalMediaResult, error) {
 	switch k {
-	case "tmdb_trending_day", "tmdb_trending_week", "tmdb_popular_movie", "tmdb_popular_tv", "tmdb_top_rated_movie",
-		"trending_day", "trending_week", "popular_movie", "popular_tv", "top_rated_movie", "upcoming_movie":
+	case "tmdb_trending_day", "tmdb_trending_week", "tmdb_latest_movie", "tmdb_latest_tv", "tmdb_popular_movie", "tmdb_popular_tv", "tmdb_top_rated_movie", "tmdb_upcoming_movie",
+		"trending_day", "trending_week", "latest_movie", "latest_tv", "popular_movie", "popular_tv", "top_rated_movie", "upcoming_movie":
 		return svc.Discover.TMDbSection(ctx, k)
 	case "douban_hot_movie", "douban_hot_tv", "douban_top_movie":
 		if svc.Douban == nil {

internal/handler/discover_extra_test.go

@@ -65,3 +65,16 @@ func TestDefaultDiscoverSectionKeysSkipDisabledProviders(t *testing.T) {
 		t.Fatal("default keys should keep enabled providers")
 	}
 }
+
+func TestDefaultDiscoverSectionKeysIncludeLatestTMDbRails(t *testing.T) {
+	keys := defaultDiscoverSectionKeys(t.Context(), &service.Container{})
+	keySet := map[string]struct{}{}
+	for _, key := range keys {
+		keySet[key] = struct{}{}
+	}
+	for _, key := range []string{"tmdb_latest_movie", "tmdb_latest_tv"} {
+		if _, ok := keySet[key]; !ok {
+			t.Fatalf("default discover keys should include %q: %v", key, keys)
+		}
+	}
+}

internal/service/discover.go

@@ -178,6 +178,10 @@ func tmdbDiscoverPath(key string) string {
 		return "/trending/movie/day"
 	case "tmdb_trending_week", "trending_week":
 		return "/trending/movie/week"
+	case "tmdb_latest_movie", "latest_movie":
+		return "/movie/now_playing"
+	case "tmdb_latest_tv", "latest_tv":
+		return "/tv/on_the_air"
 	case "tmdb_popular_movie", "popular_movie":
 		return "/movie/popular"
 	case "tmdb_popular_tv", "popular_tv":

internal/service/discover_artwork_test.go

@@ -83,6 +83,21 @@ func TestDiscoverWarmArtworkNoImageProxyIsNoop(t *testing.T) {
 	}
 }
 
+func TestTMDbDiscoverPathIncludesLatestSections(t *testing.T) {
+	cases := map[string]string{
+		"tmdb_latest_movie":   "/movie/now_playing",
+		"latest_movie":        "/movie/now_playing",
+		"tmdb_latest_tv":      "/tv/on_the_air",
+		"latest_tv":           "/tv/on_the_air",
+		"tmdb_upcoming_movie": "/movie/upcoming",
+	}
+	for key, want := range cases {
+		if got := tmdbDiscoverPath(key); got != want {
+			t.Fatalf("tmdbDiscoverPath(%q) = %q, want %q", key, got, want)
+		}
+	}
+}
+
 func waitForDiscoverArtworkCache(t *testing.T, calls *int32, wantCalls int32, cachePath, raw string) {
 	t.Helper()
 	deadline := time.Now().Add(2 * time.Second)

web/src/pages/DiscoverContentRow.tsx

@@ -65,34 +65,53 @@ function DiscoverCard({
   onSelect: (item: DiscoverItem) => void
 }) {
   const source = discoverItemSource(item)
+  const imageCandidates = useMemo(
+    () =>
+      [item.poster_url, item.backdrop_url]
+        .map((value) => value?.trim())
+        .filter((value, index, values): value is string => Boolean(value) && values.indexOf(value) === index),
+    [item.poster_url, item.backdrop_url],
+  )
+  const [imageIndex, setImageIndex] = useState(0)
   const [posterRetry, setPosterRetry] = useState(0)
   const [posterUnavailable, setPosterUnavailable] = useState(false)
   const posterVersion = [imageVersion, posterRetry > 0 ? `r${posterRetry}` : ''].filter(Boolean).join('-')
+  const activeImage = imageCandidates[imageIndex] ?? ''
   const shouldRefreshCache = Boolean(
     (imageVersion && refreshImageVersion === imageVersion) || posterRetry > 0,
   )
   const posterSrc = useMemo(
     () =>
-      imageURL(item.poster_url, posterVersion, {
+      imageURL(activeImage, posterVersion, {
         refreshCache: shouldRefreshCache,
         retryFailed: true,
       }),
-    [item.poster_url, posterVersion, shouldRefreshCache],
+    [activeImage, posterVersion, shouldRefreshCache],
   )
 
   useEffect(() => {
+    setImageIndex(0)
     setPosterRetry(0)
     setPosterUnavailable(false)
-  }, [item.poster_url])
+  }, [item.poster_url, item.backdrop_url, imageVersion])
 
   useEffect(() => {
-    if (!posterUnavailable || posterRetry >= 3) return
+    if (!posterUnavailable) return
+    if (imageIndex + 1 < imageCandidates.length) {
+      const timer = window.setTimeout(() => {
+        setImageIndex((current) => Math.min(current + 1, imageCandidates.length - 1))
+        setPosterRetry(0)
+        setPosterUnavailable(false)
+      }, 150)
+      return () => window.clearTimeout(timer)
+    }
+    if (posterRetry >= 3) return
     const timer = window.setTimeout(() => {
       setPosterRetry((current) => current + 1)
       setPosterUnavailable(false)
     }, 1200 * (posterRetry + 1))
     return () => window.clearTimeout(timer)
-  }, [posterRetry, posterUnavailable])
+  }, [imageCandidates.length, imageIndex, posterRetry, posterUnavailable])
 
   const markPosterUnavailable = () => setPosterUnavailable(true)
 

web/src/pages/DiscoverPage.tsx

@@ -8,6 +8,7 @@ import {
   defaultSections,
   discoverStorageKey,
   readSavedSections,
+  serializeSavedSections,
 } from './discoverPageModel'
 
 export function DiscoverPage() {
@@ -74,7 +75,7 @@ export function DiscoverPage() {
       }
       return next
     })
-    window.localStorage.setItem(discoverStorageKey, JSON.stringify(selected))
+    window.localStorage.setItem(discoverStorageKey, serializeSavedSections(selected))
 
     let pending = selected.length
     const markDone = () => {

web/src/pages/discoverPageModel.ts

@@ -2,15 +2,21 @@ import type { DiscoverItem, DiscoverSection } from '../api/discover'
 
 export const defaultSections = [
   'tmdb_trending_day',
+  'tmdb_latest_movie',
+  'tmdb_latest_tv',
   'douban_hot_movie',
   'douban_hot_tv',
   'bangumi_calendar',
 ]
 
 export const discoverStorageKey = 'mediastation.discover.sections'
+const discoverStorageVersion = 2
+const legacyDefaultAdditions = ['tmdb_latest_movie', 'tmdb_latest_tv']
 
 export const defaultSectionDefs: DiscoverSection[] = [
   { key: 'tmdb_trending_day', label: 'TMDb 今日趋势', provider: 'tmdb' },
+  { key: 'tmdb_latest_movie', label: 'TMDb 最新电影', provider: 'tmdb' },
+  { key: 'tmdb_latest_tv', label: 'TMDb 最新剧集', provider: 'tmdb' },
   { key: 'tmdb_popular_movie', label: 'TMDb 热门电影', provider: 'tmdb' },
   { key: 'douban_hot_movie', label: '豆瓣热门电影', provider: 'douban' },
   { key: 'douban_hot_tv', label: '豆瓣热门剧集', provider: 'douban' },
@@ -26,14 +32,44 @@ export function readSavedSections(sections: DiscoverSection[]): string[] {
     const raw = window.localStorage.getItem(discoverStorageKey)
     if (!raw) return []
     const parsed = JSON.parse(raw)
-    if (!Array.isArray(parsed)) return []
     const allowed = new Set(sections.map((section) => section.key))
-    return parsed.filter((key) => typeof key === 'string' && allowed.has(key))
+    if (Array.isArray(parsed)) {
+      return orderSectionKeys(addLegacyDefaults(parsed, allowed), sections)
+    }
+    if (!parsed || !Array.isArray(parsed.selected)) return []
+    const selected = sanitizeSectionKeys(parsed.selected, allowed)
+    if (parsed.version === discoverStorageVersion) {
+      return orderSectionKeys(selected, sections)
+    }
+    return orderSectionKeys(addLegacyDefaults(selected, allowed), sections)
   } catch {
     return []
   }
 }
 
+export function serializeSavedSections(selected: string[]): string {
+  return JSON.stringify({ version: discoverStorageVersion, selected })
+}
+
+function sanitizeSectionKeys(keys: unknown[], allowed: Set<string>): string[] {
+  return keys.filter((key): key is string => typeof key === 'string' && allowed.has(key))
+}
+
+function addLegacyDefaults(keys: unknown[], allowed: Set<string>): string[] {
+  const out = sanitizeSectionKeys(keys, allowed)
+  for (const key of legacyDefaultAdditions) {
+    if (allowed.has(key) && !out.includes(key)) {
+      out.push(key)
+    }
+  }
+  return out
+}
+
+function orderSectionKeys(keys: string[], sections: DiscoverSection[]): string[] {
+  const selected = new Set(keys)
+  return sections.map((section) => section.key).filter((key) => selected.has(key))
+}
+
 export function buildSubscribeKeyword(item: DiscoverItem): string {
   return [item.title, item.year && item.year > 0 ? item.year : ''].filter(Boolean).join(' ')
 }