refact yt-dlp info extract, show errors

backend/common/src/index_generic.py

@@ -26,6 +26,7 @@ class YouTubeItem:
         self.youtube_id = youtube_id
         self.es_path = f"{self.index_name}/_doc/{youtube_id}"
         self.config = AppConfig().config
+        self.error = None
         self.youtube_meta = False
         self.json_data = False
 
@@ -43,7 +44,9 @@ class YouTubeItem:
             obs_request["extractor_args"] = {"youtube": {"lang": langs_list}}
 
         url = self.build_yt_url()
-        self.youtube_meta = YtWrap(obs_request, self.config).extract(url)
+        self.youtube_meta, self.error = YtWrap(
+            obs_request, self.config
+        ).extract(url)
 
     def get_from_es(self):
         """get indexed data from elastic search"""

backend/common/src/urlparser.py

@@ -124,9 +124,9 @@ class Parser:
             "extract_flat": True,
             "playlistend": 0,
         }
-        url_info = YtWrap(obs_request).extract(url)
+        url_info, error = YtWrap(obs_request).extract(url)
         if not url_info:
-            raise ValueError(f"failed to retrieve content from URL: {url}")
+            raise ValueError(f"failed to retrieve URL: {error}")
 
         channel_id = url_info.get("channel_id", False)
         if channel_id: