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Fix player crash: gate file polling on confirmed download completion

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Never start polling until backend status==="complete" or video.is_downloaded
is true, preventing the player from loading a partially-written file.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Mattias Tall
2026-05-26 17:29:07 +02:00
parent 94f74215e2
commit fe8028c1f9
1 changed files with 9 additions and 11 deletions
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20
frontend/src/pages/Watch.jsx
View File

@@ -697,24 +697,22 @@ export default function Watch() {
.catch(() => { pollTimerRef.current = setTimeout(() => pollForFile(url), 1500); });
}, [fileReady]);
// Only poll once the backend confirms the download is fully written.
// Polling before status==="complete" risks playing a partial file.
useEffect(() => {
if (!dlStatus?.file_url || fileReady || !playRequested) return;
pollForFile(dlStatus.file_url);
if (fileReady || !playRequested) return;
const backendDone = dlStatus?.status === "complete" || !!video?.is_downloaded;
const fileUrl = dlStatus?.file_url ?? (video?.is_downloaded ? `/files/${youtubeVideoId}.mp4` : null);
if (!backendDone || !fileUrl) return;
pollForFile(fileUrl);
return () => clearTimeout(pollTimerRef.current);
}, [dlStatus?.file_url, fileReady, pollForFile, playRequested]);
useEffect(() => {
if (!video?.is_downloaded || fileReady || !playRequested) return;
pollForFile(`/files/${youtubeVideoId}.mp4`);
}, [video?.is_downloaded, playRequested]); // eslint-disable-line react-hooks/exhaustive-deps
}, [playRequested, fileReady, dlStatus?.status, dlStatus?.file_url, video?.is_downloaded, youtubeVideoId, pollForFile]); // eslint-disable-line react-hooks/exhaustive-deps
const downloadMut = useMutation({
mutationFn: () => createDownload(youtubeVideoId, selectedQuality),
onSuccess: (res) => {
const dl = res.data;
setDownloadId(dl.id);
setDownloadId(res.data.id);
refetchVideo();
if (dl.status === "complete" && dl.file_url) pollForFile(dl.file_url);
},
});