better crash resistance with VLC client

src/main.ts

@@ -38,18 +38,25 @@ const topic =
   "Something Fun For Everyone With Streamboy!!!!!!!! git.jeevio.xyz/jeeves/streamboy";
 
 setInterval(async () => {
-  const songinfo = await getVlcSongInfo();
+  let songinfo: SongInfo | null = null;
+  try {
+    songinfo = await getVlcSongInfo();
+  } catch {
+    // properly handling this error is by ignoring it,
+    // since then that leaves songinfo as null,
+    // and that is guaranteed to be handled correctly.
+  }
+
   const data = {
-    blocks: [
-      { text: topic, color: "#ffffff" },
-      { text: `♪ ${songinfo.title} - ${songinfo.artist}`, color: "#ffffff" },
-    ],
+    blocks: [{ text: topic, color: "#ffffff" }],
   };
+  if (songinfo != null) {
+    data.blocks.push({
+      text: `♪ ${songinfo.title} - ${songinfo.artist}`,
+      color: "#ffffff",
+    });
+  }
   for (const ws of wsClients) {
-    // ws.send(
-    //   `${topic}    |    ♪ ${songinfo.title} - ${songinfo.artist}    |    `,
-    // );
-    //
     ws.send(JSON.stringify(data));
   }
 }, 900);
@@ -72,6 +79,7 @@ async function getVlcSongInfo(): Promise<SongInfo> {
 
   const songinfo: SongInfo = {};
 
+  try {
     for (const category of json.root.information.category) {
       if (category["@_name"] != "meta") continue;
       for (const property of category.info) {
@@ -84,6 +92,11 @@ async function getVlcSongInfo(): Promise<SongInfo> {
         }
       }
     }
+  } catch {
+    songinfo.title = "Unknown Title";
+    songinfo.artist = "Unknown Artist";
+    songinfo.album = "Unknown Album";
+  }
 
   return songinfo;
 }