0.12.0-1 Plugins und diverses

backend/src/services/thumbnailService.js

@@ -33,6 +33,31 @@ function isLocalUrl(url) {
   return typeof url === 'string' && url.startsWith('/api/thumbnails/');
 }
 
+function resolveLocalThumbnailPath(url) {
+  const raw = String(url || '').trim();
+  const match = raw.match(/^\/api\/thumbnails\/job-(\d+)\.jpg$/i);
+  if (!match) {
+    return null;
+  }
+  const jobId = Number(match[1]);
+  if (!Number.isFinite(jobId) || jobId <= 0) {
+    return null;
+  }
+  return persistentFilePath(Math.trunc(jobId));
+}
+
+function localThumbnailUrlExists(url) {
+  const targetPath = resolveLocalThumbnailPath(url);
+  if (!targetPath) {
+    return false;
+  }
+  try {
+    return fs.existsSync(targetPath);
+  } catch (_error) {
+    return false;
+  }
+}
+
 function downloadImage(url, destPath, redirectsLeft = MAX_REDIRECTS) {
   return new Promise((resolve, reject) => {
     if (redirectsLeft <= 0) {
@@ -82,21 +107,48 @@ function downloadImage(url, destPath, redirectsLeft = MAX_REDIRECTS) {
  * Wird aufgerufen sobald poster_url bekannt ist (vor Rip-Start).
  * @returns {Promise<string|null>} lokaler Pfad oder null
  */
-async function cacheJobThumbnail(jobId, posterUrl) {
-  if (!posterUrl || isLocalUrl(posterUrl)) return null;
+async function cacheJobThumbnailDetailed(jobId, posterUrl) {
+  const normalizedPosterUrl = String(posterUrl || '').trim();
+  if (!normalizedPosterUrl || isLocalUrl(normalizedPosterUrl)) {
+    return {
+      ok: false,
+      jobId,
+      posterUrl: normalizedPosterUrl || null,
+      cachedPath: null,
+      error: 'Kein externer Poster-Link vorhanden.'
+    };
+  }
 
   try {
     ensureDirs();
     const dest = cacheFilePath(jobId);
-    await downloadImage(posterUrl, dest);
-    logger.info('thumbnail:cached', { jobId, posterUrl, dest });
-    return dest;
+    await downloadImage(normalizedPosterUrl, dest);
+    logger.info('thumbnail:cached', { jobId, posterUrl: normalizedPosterUrl, dest });
+    return {
+      ok: true,
+      jobId,
+      posterUrl: normalizedPosterUrl,
+      cachedPath: dest,
+      error: null
+    };
   } catch (err) {
-    logger.warn('thumbnail:cache:failed', { jobId, posterUrl, error: err.message });
-    return null;
+    const message = String(err?.message || err || 'Bild-Download fehlgeschlagen');
+    logger.warn('thumbnail:cache:failed', { jobId, posterUrl: normalizedPosterUrl, error: message });
+    return {
+      ok: false,
+      jobId,
+      posterUrl: normalizedPosterUrl,
+      cachedPath: null,
+      error: message
+    };
   }
 }
 
+async function cacheJobThumbnail(jobId, posterUrl) {
+  const result = await cacheJobThumbnailDetailed(jobId, posterUrl);
+  return result?.ok ? result.cachedPath : null;
+}
+
 /**
  * Verschiebt das gecachte Bild in den persistenten Ordner.
  * Gibt die lokale API-URL zurück, oder null wenn kein Bild vorhanden.
@@ -251,11 +303,14 @@ async function migrateExistingThumbnails() {
 
 module.exports = {
   cacheJobThumbnail,
+  cacheJobThumbnailDetailed,
   promoteJobThumbnail,
   copyThumbnail,
   storeLocalThumbnail,
   deleteThumbnail,
   getThumbnailsDir,
   migrateExistingThumbnails,
-  isLocalUrl
+  isLocalUrl,
+  resolveLocalThumbnailPath,
+  localThumbnailUrlExists
 };