fix(search): surface iTunes stubs and resolve feeds for delisted shows

Shows that left Apple Podcasts (e.g. Daily Wire's in 2021) come back from
the iTunes Search API as metadata-only stub records with feedUrl null.
mapItunesResult dropped them, so The Ben Shapiro Show — the #1 hit for
'ben shapiro' — never appeared in search while sibling shows did.

- Keep feedUrl-less results (feedUrl "" + directoryUrl pointing at the
  Apple page) so delisted shows stay findable.
- Resolve the real feed from the Apple page at subscribe time
  (itunes-feed-resolver: anchor on the collection's adamId, forward-scan
  for the embedded feedUrl; Apple serves page variants where the
  showOffer block sits thousands of chars after the adamId).
- addFeed refuses feedless stubs whose feed can't be resolved instead of
  adding a broken feed; SearchPage surfaces the failure via toast.
- Tests: stub mapping, extractor variants, and an end-to-end subscribe
  over a local HTTP server.

src/pages/Search/SearchPage.tsx

@@ -26,6 +26,7 @@ import {
 } from "solid-js";
 import { useSearchStore } from "@/stores/search";
 import { useFeedStore } from "@/stores/feed";
+import { useToast } from "@/ui/toast";
 import { format } from "date-fns";
 import { useTheme } from "@/context/ThemeContext";
 import {
@@ -49,6 +50,7 @@ export const SearchPaneCount = 1;
 function SearchPage() {
 	const searchStore = useSearchStore();
 	const feedStore = useFeedStore();
+	const toast = useToast();
 	const [inputValue, setInputValue] = createSignal("");
 	const { theme } = useTheme();
 	const muted = () => theme.muted || theme.text;
@@ -136,10 +138,23 @@ function SearchPage() {
 		runSearch(query);
 	};
 
-	const handleSubscribe = (result: SearchResult) => {
-		// Actually add the feed to the feed store, then mark the result subscribed
-		feedStore.addFeed(result.podcast, result.sourceId).catch(() => {});
-		searchStore.markSubscribed(result.podcast.id);
+	const handleSubscribe = async (result: SearchResult) => {
+		// Actually add the feed to the feed store, then mark the result
+		// subscribed. addFeed returns null when a feedless directory stub
+		// (delisted show) can't be resolved — tell the user why.
+		const feed = await feedStore
+			.addFeed(result.podcast, result.sourceId)
+			.catch(() => null);
+		if (!feed && !result.podcast.feedUrl) {
+			toast.show({
+				title: "Can't subscribe",
+				message:
+					"No RSS feed is listed for this show and the feed couldn't be resolved. Try adding it by feed URL.",
+				variant: "error",
+			});
+			return;
+		}
+		if (feed) searchStore.markSubscribed(result.podcast.id);
 	};
 
 	// ── nav.action handler ──────────────────────────────────────────────────────
@@ -450,7 +465,11 @@ function SearchPage() {
 								</For>
 							</box>
 						</Show>
-						<text fg={muted()}>Feed: {result().podcast.feedUrl}</text>
+						<text fg={muted()}>
+							Feed:{" "}
+							{result().podcast.feedUrl ||
+								"not listed by source — resolves on subscribe"}
+						</text>
 						<text fg={muted()}>
 							Updated: {formatDate(result().podcast.lastUpdated)}
 						</text>

src/stores/feed.ts

@@ -11,6 +11,7 @@ import type { Episode } from "../types/episode";
 import type { PodcastSource } from "../types/source";
 import { DEFAULT_SOURCES } from "../types/source";
 import { parseRSSFeed } from "../api/rss-parser";
+import { resolveItunesFeedUrl } from "../utils/itunes-feed-resolver";
 import {
 	loadFeedsFromFile,
 	saveFeedsToFile,
@@ -196,6 +197,17 @@ function createFeedStore() {
 		sourceId: string,
 		visibility: FeedVisibility = FeedVisibility.PUBLIC,
 	): Promise<Feed | null> => {
+		// A directory stub (e.g. a show delisted from Apple Podcasts) has no
+		// feed URL; resolve the real feed from its directory page before
+		// subscribing. Refuse when it can't be resolved rather than adding a
+		// broken feed.
+		if (!podcast.feedUrl) {
+			if (!podcast.directoryUrl) return null;
+			const resolved = await resolveItunesFeedUrl(podcast.directoryUrl);
+			if (!resolved) return null;
+			podcast = { ...podcast, feedUrl: resolved, directoryUrl: undefined };
+		}
+
 		// Guard: don't add a feed we already have (matched by feedUrl)
 		if (hasFeedByUrl(podcast.feedUrl)) {
 			return feeds().find((f) => f.podcast.feedUrl === podcast.feedUrl) ?? null;

src/types/podcast.ts

@@ -12,8 +12,12 @@ export interface Podcast {
   description: string
   /** Cover image URL */
   coverUrl?: string
-  /** RSS feed URL */
+  /** RSS feed URL. Empty when the directory lists the show without a feed
+   *  (e.g. shows delisted from Apple Podcasts); see directoryUrl. */
   feedUrl: string
+  /** Directory listing page (e.g. Apple Podcasts) for shows whose feed URL
+   *  the directory omits — used to resolve the real feed at subscribe time. */
+  directoryUrl?: string
   /** Author/creator name */
   author?: string
   /** Podcast categories */

src/utils/itunes-feed-resolver.ts

@@ -0,0 +1,61 @@
+/**
+ * iTunes feed resolution for shows delisted from Apple Podcasts.
+ *
+ * The iTunes Search API returns `feedUrl: null` for shows that left Apple
+ * Podcasts (e.g. The Daily Wire's shows in 2021) — the directory keeps a
+ * metadata-only stub. The show's public Apple Podcasts page still embeds the
+ * real feed URL in its JSON state (`showOffer.feedUrl`), so subscribing can
+ * resolve it from there.
+ */
+
+/** `"feedUrl":"https://..."` as embedded in the Apple page's JSON state. */
+const FEED_URL_RE = /"feedUrl"\s*:\s*"(https?:\/\/[^"]+)"/
+
+/**
+ * Extract the show's feed URL from an Apple Podcasts page's HTML.
+ *
+ * The page embeds `showOffer` blocks for the show AND for related shows, each
+ * with its own feedUrl, and Apple serves multiple JSON variants — the main
+ * show's showOffer may sit adjacent to its adamId or thousands of chars later.
+ * Anchor on the collection id from `directoryUrl` (`"adamId":"<id>"`) and take
+ * the FIRST feedUrl after it (the main show's content precedes related shows'
+ * in the document). Falls back to the first feedUrl in the document only when
+ * the id isn't present in the URL. Returns null when no trustworthy match
+ * exists (page restructured, no feed) — callers must not guess.
+ */
+export const extractFeedUrlFromPage = (
+  html: string,
+  directoryUrl: string,
+): string | null => {
+  const idMatch = /[?/]id(\d+)/.exec(directoryUrl)
+  if (!idMatch) {
+    const fallback = FEED_URL_RE.exec(html)
+    return fallback ? fallback[1] : null
+  }
+
+  const adamIdx = html.search(new RegExp(`"adamId"\\s*:\\s*"${idMatch[1]}"`))
+  if (adamIdx < 0) return null
+
+  const fromAdam = new RegExp(FEED_URL_RE.source, "g")
+  fromAdam.lastIndex = adamIdx
+  const match = fromAdam.exec(html)
+  return match ? match[1] : null
+}
+
+/**
+ * Resolve a delisted show's RSS feed from its Apple Podcasts page.
+ * Returns null on network failure or when the page has no resolvable feed.
+ */
+export const resolveItunesFeedUrl = async (
+  directoryUrl: string,
+): Promise<string | null> => {
+  try {
+    const response = await fetch(directoryUrl, {
+      headers: { "User-Agent": "PodTUI/1.0" },
+    })
+    if (!response.ok) return null
+    return extractFeedUrlFromPage(await response.text(), directoryUrl)
+  } catch {
+    return null
+  }
+}

src/utils/source-searcher.ts

@@ -14,11 +14,13 @@ type ItunesResult = {
   collectionId?: number
   collectionName?: string
   artistName?: string
-  feedUrl?: string
+  /** Null for shows delisted from Apple Podcasts (directory stub records). */
+  feedUrl?: string | null
   artworkUrl100?: string
   artworkUrl600?: string
   primaryGenreName?: string
   releaseDate?: string
+  collectionViewUrl?: string
 }
 
 type ItunesResponse = {
@@ -41,8 +43,8 @@ const buildItunesUrl = (query: string, source: PodcastSource) => {
   return url.toString()
 }
 
-const mapItunesResult = (result: ItunesResult, source: PodcastSource): Podcast | null => {
-  if (!result.collectionName || !result.feedUrl) return null
+export const mapItunesResult = (result: ItunesResult, source: PodcastSource): Podcast | null => {
+  if (!result.collectionName) return null
 
   const id = result.collectionId
     ? `itunes-${result.collectionId}`
@@ -52,11 +54,18 @@ const mapItunesResult = (result: ItunesResult, source: PodcastSource): Podcast |
   if (result.artistName) descriptionParts.push(`by ${result.artistName}`)
   if (result.primaryGenreName) descriptionParts.push(result.primaryGenreName)
 
+  // Shows delisted from Apple Podcasts (e.g. The Daily Wire's shows) come back
+  // as metadata-only stub records with feedUrl null. Keep the stub so the show
+  // stays findable; the real feed is resolved from the directory page at
+  // subscribe time (see itunes-feed-resolver).
+  const feedUrl = result.feedUrl ?? ""
+
   return {
     id,
     title: result.collectionName,
     description: descriptionParts.join(" • "),
-    feedUrl: result.feedUrl,
+    feedUrl,
+    directoryUrl: feedUrl ? undefined : result.collectionViewUrl,
     author: result.artistName,
     categories: result.primaryGenreName ? [result.primaryGenreName] : undefined,
     coverUrl: result.artworkUrl600 || result.artworkUrl100,