From cbf90d1d0a01ce2ee8728d6f0c89f7d30c8bd37a Mon Sep 17 00:00:00 2001
From: Simone Tesini <simozilla006@gmail.com>
Date: Sat, 2 Aug 2025 11:26:07 +0200
Subject: [PATCH] fix micro smarcio

---
 backend/src/app.py        |  3 +++
 backend/src/song_fetch.py | 17 +++++++++++++----
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/backend/src/app.py b/backend/src/app.py
index ac1dfaa..0fc9f9d 100644
--- a/backend/src/app.py
+++ b/backend/src/app.py
@@ -210,6 +210,9 @@ def add_song():
         ## song not found, downolad from YT
         yt_video_id = yt_search_song(info.title, info.artist)
 
+        if yt_video_id is None:
+            return error("No video found on youtube")
+
         ## add in DB
         song = Song(
             uuid=str(uuid.uuid4()),
diff --git a/backend/src/song_fetch.py b/backend/src/song_fetch.py
index f8cb78f..905d126 100644
--- a/backend/src/song_fetch.py
+++ b/backend/src/song_fetch.py
@@ -18,7 +18,7 @@ class SongInfo:
     tags: list[str]
 
 
-def _lastfm_search(query: str) -> tuple[str, str]:
+def _lastfm_search(query: str) -> tuple[str, str] | None:
     response = requests.get(
         url="https://ws.audioscrobbler.com/2.0/?method=track.search&format=json",
         params={"limit": 5, "track": query, "api_key": os.environ["LASTFM_API_KEY"]},
@@ -26,7 +26,10 @@ def _lastfm_search(query: str) -> tuple[str, str]:
 
     assert response.status_code == 200
 
-    track_info = response.json()["results"]["trackmatches"]["track"][0]
+    tracks = response.json()["results"]["trackmatches"]["track"]
+    if len(tracks) == 0:
+        return None
+    track_info = tracks[0]
 
     return track_info["name"], track_info["artist"]
 
@@ -74,14 +77,17 @@ def _yt_search(query: str) -> tuple[str, str]:
 
 
 def query_search(query: str) -> SongInfo | None:
-    name, artist = _lastfm_search(query)
+    res = _lastfm_search(query)
+    if res is None:
+        return None
 
+    name, artist = res
     img_id, tags = _lastfm_getinfo(name, artist)
 
     return SongInfo(artist=artist, title=name, img_id=img_id, tags=tags)
 
 
-def yt_search_song(name: str, artist: str) -> str:  # video id
+def yt_search_song(name: str, artist: str) -> str | None:  # video id
     ydl_opts = {
         "format": "bestaudio",
         "default_search": "ytsearch1",
@@ -92,6 +98,9 @@ def yt_search_song(name: str, artist: str) -> str:  # video id
     with yt_dlp.YoutubeDL(ydl_opts) as ydl:
         info = ydl.extract_info(f"{name!r} - {artist!r}", download=False)
 
+    if len(info["entries"]) == 0:
+        return None
+
     return info["entries"][0]["id"]