fix: xREL 3 Suchstrategien, normalisierte Queries, debug-xrel3 Endpoint

backend/src/tools/media/routes.js

@@ -126,36 +126,64 @@ async function getXrelData(tmdbId, imdbId, title, originalTitle) {
   const cached = cacheGet(cacheKey);
   if (cached !== undefined) return cached;
 
-  // Alle Suchen parallel – originaltitel und deutsch gleichzeitig
-  const clean = (s) => (s||'').replace(/[*#!?:]/g,'').trim().toLowerCase();
-  const queries = [originalTitle, title].filter(Boolean).filter((v,i,a) => a.indexOf(v)===i);
+  const clean = (s) => normalizeUmlauts(s||'').replace(/[*#!?:]/g,'').trim().toLowerCase();
 
-  const searchResults = await Promise.all(queries.map(async q => {
+  // Suchqueries: original, deutsch, und normalisierte Varianten
+  // Wichtig: xREL nutzt oft den englischen Originaltitel auch bei deutschen Filmen
+  const rawQueries = [originalTitle, title].filter(Boolean).filter((v,i,a) => a.indexOf(v)===i);
+  // Normalisierte Versionen (Umlaute) als zusätzliche Queries
+  const normQueries = rawQueries.map(q => normalizeUmlauts(q).replace(/[*#!?:]/g,'').trim())
+    .filter(q => !rawQueries.map(r => r.replace(/[*#!?:]/g,'').trim()).includes(q));
+  const allQueries = [...rawQueries, ...normQueries].filter(Boolean).filter((v,i,a) => a.indexOf(v)===i);
+
+  // Alle parallel suchen
+  const searchResults = await Promise.all(allQueries.map(async q => {
     try {
-      return await xrelFetch('/search/ext_info.json', {
-        q: normalizeUmlauts(q).replace(/[*#!?:]/g,''), type:'movie', limit:10
-      });
+      return {
+        q,
+        data: await xrelFetch('/search/ext_info.json', {
+          q: normalizeUmlauts(q).replace(/[*#!?:]/g,''), type:'movie', limit:10
+        })
+      };
     } catch(_) { return null; }
   }));
 
   let extInfoId = null;
-  // IMDb-URI Match zuerst
+
+  // Strategie 1: IMDb-URI exakter Match (zuverlässigste Methode)
   if (imdbId) {
-    for (const data of searchResults) {
-      const hit = (data?.results||[]).find(h => (h.uris||[]).includes(`imdb:${imdbId}`));
-      if (hit?.id) { extInfoId = hit.id; break; }
-    }
-  }
-  // Exakter Titel-Match als Fallback
-  if (!extInfoId) {
-    for (const data of searchResults) {
-      const hit = (data?.results||[]).find(h => clean(h.title)===clean(queries[0]) || clean(h.alt_title)===clean(queries[0]));
+    for (const r of searchResults) {
+      if (!r) continue;
+      const hit = (r.data?.results||[]).find(h => (h.uris||[]).includes(`imdb:${imdbId}`));
       if (hit?.id) { extInfoId = hit.id; break; }
     }
   }
 
+  // Strategie 2: Exakter Titel-Match
   if (!extInfoId) {
-    cacheSet(cacheKey, [], 60*60*1000); // 1h für nicht gefunden
+    for (const r of searchResults) {
+      if (!r) continue;
+      const hit = (r.data?.results||[]).find(h =>
+        clean(h.title) === clean(r.q) || clean(h.alt_title) === clean(r.q)
+      );
+      if (hit?.id) { extInfoId = hit.id; break; }
+    }
+  }
+
+  // Strategie 3: Einziger Treffer bei IMDb-Suche (nur wenn exakt 1 Ergebnis)
+  if (!extInfoId && imdbId) {
+    for (const r of searchResults) {
+      if (!r) continue;
+      const results = r.data?.results || [];
+      if (results.length === 1 && results[0].type === 'movie') {
+        extInfoId = results[0].id;
+        break;
+      }
+    }
+  }
+
+  if (!extInfoId) {
+    cacheSet(cacheKey, [], 60*60*1000);
     return [];
   }
 
@@ -331,4 +359,36 @@ router.put('/settings', authenticate, requireAdmin, (req, res) => {
 });
 
 
+// DEBUG – nach Test entfernen
+router.get('/debug-xrel3', authenticate, async (req, res) => {
+  const title    = req.query.title    || '';
+  const orig     = req.query.orig     || '';
+  const imdb_id  = req.query.imdb_id  || null;
+  const log = { title, orig, imdb_id };
+  try {
+    const clean = (s) => normalizeUmlauts(s||'').replace(/[*#!?:]/g,'').trim().toLowerCase();
+    const rawQueries = [orig, title].filter(Boolean).filter((v,i,a) => a.indexOf(v)===i);
+    const normQueries = rawQueries.map(q => normalizeUmlauts(q).replace(/[*#!?:]/g,'').trim())
+      .filter(q => !rawQueries.map(r => r.replace(/[*#!?:]/g,'').trim()).includes(q));
+    log.rawQueries = rawQueries;
+    log.normQueries = normQueries;
+    log.allQueries = [...rawQueries, ...normQueries].filter(Boolean).filter((v,i,a) => a.indexOf(v)===i);
+
+    const results = [];
+    for (const q of log.allQueries) {
+      try {
+        const data = await xrelFetch('/search/ext_info.json', {
+          q: normalizeUmlauts(q).replace(/[*#!?:]/g,''), type:'movie', limit:5
+        });
+        results.push({
+          query: normalizeUmlauts(q).replace(/[*#!?:]/g,''),
+          hits: (data.results||[]).map(h => ({ id: h.id, title: h.title, alt_title: h.alt_title, uris: h.uris }))
+        });
+      } catch(e) { results.push({ query: q, error: e.message }); }
+    }
+    log.searchResults = results;
+  } catch(e) { log.error = e.message; }
+  res.json(log);
+});
+
 module.exports = router;