fix: force stable release stream

src/lib/api/osuapi.ts

@@ -18,11 +18,13 @@ export const osuapi = {
       },
     });
     if (request.error) {
-      if (request.error.status >= 500 && request.error.status < 600)
-        throw new Error('Server not reachable');
       return undefined;
     }
     const releaseData = request.data;
+    if (!releaseData || !releaseData.streams) {
+      return undefined;
+    }
+    if (releaseData.streams.length === 0) return undefined;
     const selectedRelease = releaseData.streams.find(
       (releaseBuild) =>
         releaseBuild.name.toLowerCase() === releaseStream.replaceAll(' ', '').toLowerCase()

src/screens/Launch.svelte

@@ -241,13 +241,31 @@
       const streamInfo = await osuapi.latestBuildVersion('stable40');
       if (!streamInfo) {
         toast.error('Hmmm...', {
-          description: 'Failed to check for updates.',
+          description: 'Failed to check for updates, maybe osu! is down?',
         });
         launching.set(false);
         return;
       }
 
       const releaseStream = await getReleaseStream(osuPath);
+
+      if (releaseStream === undefined) {
+        toast.error('Hmmm...', {
+          description: 'Failed to get osu! release stream.',
+        });
+        launching.set(false);
+        return;
+      }
+
+      // only stable osu! release streams are supported for now
+      if (!releaseStream.toLowerCase().includes('stable')) {
+        toast.error('Hmmm...', {
+          description: 'You are not on the stable release stream, please switch to it.',
+        });
+        launching.set(false);
+        return;
+      }
+
       const osuCorrupted = await isOsuCorrupted(osuPath);
       let forceUpdate =
         (releaseStream && releaseStream.toLowerCase() !== 'stable40') || osuCorrupted;