bambuddy/backend
maziggy fe476dd98e fix(timelapse): poll longer, diff without a clock, delete once archived (#2704)
Timelapse was on, the video never reached the archive, and Scan for Timelapse
    found nothing afterwards. Across 247 support bundles this was the norm, not an
    edge case: 457 automatic scans scheduled, 262 attached.

    The scan looked four times over ~65s. The attempt that found the video was #1
    272 times, then 17 / 13 / 13 — flat against the cutoff, not decaying, i.e.
    files were still arriving when we stopped. What ran afterwards searched for the
    print name inside the filename; Bambu only writes "video_<timestamp>", so it
    fired 159 times and matched zero.

    The manual Scan had no baseline at all and matched on filename timestamp, FTP
    mtime, or "there is only one video" — all reading a clock a LAN-only printer
    cannot sync. The reporter's P1S was six and a half days out.

    - Poll for minutes instead of ~65s; drop the name-match fallback.
    - Persist the print-start baseline on the archive, so the diff survives a
      restart mid-print and the manual Scan runs the same comparison. With a
      baseline present the clock-based strategies are skipped entirely — they can
      only turn an honest "pick one" into a confident wrong answer.
    - When several files are new (a previous print's video landing late), exclude
      the ones already attached to another archive instead of ordering the
      candidates. Ordering could only be done on the printer's clock.
    - Delete the video from the printer once archived. Keeps /timelapse to
      unclaimed files, which is what makes the diff unambiguous, and stops P1S
      cards filling with AVIs.
    - Gate that delete on a verified transfer: download_file now compares against
      the size from the listing. An FTPS connection closing early does not always
      raise, so a partial buffer was being attached as a complete video — which
      would also have been the one case where deleting the source lost data.

    Bounded twice on purpose: wall-clock deadline plus a derived round cap, since
    the deadline stops bounding the loop as soon as the sleeps are shortened.
    Per-round logging only speaks when the listing changed — 31 rounds of full
    listings would bury the interesting line in the support bundle.

    Migration adds print_archives.timelapse_baseline as JSON, spelled the same on
    both dialects so a migrated database matches a fresh one.

    -----------

    fix(finish-photo): add the timelapse frame to the archive after the notification (#2704)

    When a print records a timelapse, its last frame is the better finish photo:
    the firmware stops recording with the toolhead parked and before the end
    G-code drops the bed, where a live grab at that moment catches a lowered
    plate. Bambuddy waited 60s for the video and then gave up, because the
    print-complete notification blocks on that photo and holding a notification
    for minutes is worse than sending it with the live grab.

    P1-series printers write MJPEG AVI rather than H.264 MP4 and serve it slowly.
    Measured over 261 attaches in the support bundles: P1S median 33s, p90 167s,
    worst 546s, while every other model finished inside 26s. So the printers that
    most needed the better framing were the ones that never got it.

    Keep the notification on the same bound, and keep waiting off to the side.
    _capture_finish_photo_from_timelapse now reports whether it ran out of time or
    concluded — a video that landed and failed extraction is not worth retrying,
    one that never arrived is. On the first, schedule a background task that waits
    up to 15 minutes and inserts the extracted frame at the front of the archive's
    photo list, where the gallery opens.

    The live grab stays on disk: the notification already links to that exact
    file, so removing it would leave a broken image in Discord or Telegram.

    The length check proves we received what the listing said, not that the file
    was finished. The first look happens ~5s after the print ends, while the
    printer may still be writing, so a growing file can be listed short, served
    short, and pass. Re-list after the download and only accept the video once its
    size has stopped changing — a failed re-list counts as not settled, since
    "could not check" must not mean "safe to delete".
2026-08-02 09:36:07 +02:00
..
app fix(timelapse): poll longer, diff without a clock, delete once archived (#2704) 2026-08-02 09:36:07 +02:00
tests fix(timelapse): poll longer, diff without a clock, delete once archived (#2704) 2026-07-29 11:51:30 +02:00
__init__.py Added screenshots 2025-11-28 10:23:59 +01:00