feat: download ETA on the press bar from measured Soulseek throughput

Show a live "~Xm left" countdown on the download progress bar. The slskd download
loop already polls byte transfer every 3s; measure the actual throughput (EWMA-
smoothed bytes/sec), compute seconds-remaining from the album's total bytes, and
surface it. New nullable Job.downloadEtaSeconds (migration; web entrypoint runs
prisma migrate deploy), threaded through the on_progress callback (optional 2nd arg,
so other adapters/callers are unaffected — they report no ETA). API exposes it;
queue.tsx renders etaLabel() after the track count. Null when unknown (no sample yet
or a source that doesn't report bytes). Worker 330 tests, web 214 tests, both green;
verified live-rendered as "42% · 6/14 tracks · ~4m left".

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

This commit is contained in:

Jonathan

2026-07-20 20:16:58 +02:00

parent db8b43b0e8

commit c49cee9a20

9 changed files with 113 additions and 24 deletions

									
										web/prisma/migrations/20260720200000_add_job_download_eta/migration.sql
									
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				-- Estimated seconds remaining for the active download (measured throughput). Nullable.

				ALTER TABLE "Job" ADD COLUMN "downloadEtaSeconds" INTEGER;