0.10.2-9 Layout

backend/src/services/audnexService.js

@@ -131,6 +131,45 @@ function normalizeAudnexChapter(entry, index) {
   };
 }
 
+function normalizeNameList(items) {
+  if (!Array.isArray(items) || items.length === 0) {
+    return null;
+  }
+  const names = items
+    .map((item) => String(item?.name || '').trim())
+    .filter(Boolean);
+  return names.length > 0 ? names.join(', ') : null;
+}
+
+async function fetchBookByAsin(asin, region = 'de') {
+  const normalizedAsin = normalizeAsin(asin);
+  if (!normalizedAsin) {
+    return null;
+  }
+
+  const url = new URL(`${AUDNEX_BASE_URL}/books/${normalizedAsin}`);
+  url.searchParams.set('region', String(region || 'de').trim() || 'de');
+  logger.info('book:fetch:start', { asin: normalizedAsin, url: url.toString() });
+
+  const payload = await audnexFetch(url.toString());
+  if (!payload || typeof payload !== 'object') {
+    return null;
+  }
+
+  const narrator = normalizeNameList(payload.narrators);
+  const author = normalizeNameList(payload.authors);
+  const title = String(payload.title || '').trim() || null;
+  const series = String(payload.seriesName || payload.series || '').trim() || null;
+  const part = String(payload.seriesPart || payload.part || '').trim() || null;
+  const description = String(payload.summary || payload.description || '').trim() || null;
+  const year = payload.releaseDate
+    ? String(payload.releaseDate).slice(0, 4)
+    : null;
+
+  logger.info('book:fetch:done', { asin: normalizedAsin, narrator, author, title });
+  return { narrator, author, title, series, part, description, year };
+}
+
 async function fetchChaptersByAsin(asin, region = 'de') {
   const normalizedAsin = normalizeAsin(asin);
   if (!normalizedAsin) {
@@ -152,5 +191,6 @@ async function fetchChaptersByAsin(asin, region = 'de') {
 
 module.exports = {
   extractAsinFromAaxFile,
+  fetchBookByAsin,
   fetchChaptersByAsin
 };