Commit Graph
5 Commits
Author SHA1 Message Date
maziggy be7e85344c fix(finish-photo): drive capture from stg_cur=22, drop dispatch force-on (#1721)
capture_finish_photo (default-on) was forcing the timelapse MQTT field to
  true on every print, even when the user explicitly unchecked Timelapse in
  the slicer send dialog. On profiles with Timelapse Type = Smooth, that
  flipped the printer's timelapse_record_flag and un-gated the per-layer
  M622 J1 wipe blocks the slicer had baked in — toolhead parked off the
  part every layer, on prints the user opted out of recording.

  Root cause: #1397 implemented the finish-photo feature as a side channel
  of "force the printer into timelapse-recording mode at dispatch" so the
  last-frame extractor had a video to pull from. That conflated recording a
  timelapse with snapping a finish photo, and the per-layer side effects
  were decided at slice time by the user's timelapse_type, which Bambuddy
  has no visibility into post-slice.

  Fix: replace the force-on with a clean MQTT-state-driven trigger.

    bambu_mqtt.py fires a new on_finish_photo_moment callback when
    stg_cur transitions INTO 22 ("Filament unloading") while
    _was_running AND end-of-print gate matches (progress >= 99 OR
    layer_num >= total_layers OR remaining_time <= 0). The gate
    disambiguates from mid-print color swaps (which also transit
    stage 22 but at progress < 99). FINISH-state fallback in the same
    handler fires the callback at the existing transition if stage 22
    never arrived (cancel, external-spool-only, HMS halt, firmware
    variants).

    main.py registers on_finish_photo_moment as a top-level handler.
    It pre-captures one camera frame at the trigger edge (external cam
    → buffered RTSP → fresh RTSP via capture_camera_frame_bytes) and
    caches the JPEG bytes in _stage22_finish_frames[printer_id].
    _background_finish_photo consumes the cached bytes before its
    existing live-grab chain, so the saved photo has the better
    framing (toolhead parked, before bed drop) without restructuring
    the archive-resolution / fallback / notification wiring.

    When a timelapse IS actively recording (user explicitly opted in),
    pre-capture is skipped — _capture_finish_photo_from_timelapse
    still extracts the last frame, which is still the best framing
    and now has no force-on side effects because the user wanted the
    video.

  Removed: resolve_effective_timelapse, _resolve_effective_timelapse
  wrapper, both background_dispatch call sites, the print_scheduler call
  site, the archive.bambuddy_forced_timelapse write, _cleanup_forced_timelapse
  (~75 lines including the FTP-DELE walk across /timelapse, /timelapse/video,
  /record, /recording) and its call site. All paths now read
  bool(item.timelapse) / bool(job.options.get("timelapse", False)) directly.
  The archive.bambuddy_forced_timelapse DB column stays defined (default
  False) for back-compat with existing rows — no consumer reads it anymore.
2026-06-13 13:28:58 +02:00
maziggy 12d17bfbe7 fix(photo): source finish photo from forced timelapse + cleanup (#1397)
Bambu's end-gcode lowers the bed at gcode_state=FINISH. Bambuddy's
  live-camera grab captured the bed already dropped, ruining the photo
  framing. Source the photo from a brief Bambu timelapse instead —
  firmware stops timelapse recording AFTER toolhead parks but BEFORE
  bed-drop runs, so the last frame frames the finished print correctly.

  When capture_finish_photo is on AND the user did not opt in to
  timelapse for this print, force timelapse=True at dispatch + mark the
  new PrintArchive.bambuddy_forced_timelapse column. After extraction
  (success or failure), cleanup deletes the locally-attached file,
  clears archive.timelapse_path, and walks the four scanner directories
  (/timelapse, /timelapse/video, /record, /recording) trying FTP DELE
  against the original filename. User-opted-in timelapses pass through
  unchanged.

  Resolver lives at services/background_dispatch.py::resolve_effective_timelapse
  (module-level so the print queue can reuse it). Both dispatch paths
  wired: background_dispatch.py (Print Now / Reprint) AND
  print_scheduler.py:_start_print (the queue). Field testing caught the
  scheduler gap on the first round — AST regression test now asserts
  start_print(timelapse=...) references effective_timelapse, not the raw
  item.timelapse, so a future refactor can't silently drop it.

  Extractor: ffmpeg -i input.mp4 -update 1 -q:v 2 out.jpg. Decoded
  frames overwrite the same output file, so the file left on disk is the
  literal last frame regardless of duration. Bambu records one frame per
  layer-change, so a 16-layer cube produces a 0.6 s timelapse — the
  original -sseof -1.0 approach seeked before the start of the file and
  returned frame 0 (empty bed). Decoding every frame is fine; Bambu
  timelapses are short by construction even on hours-long prints.

  Migration adds bambuddy_forced_timelapse branched on is_sqlite()
  (DEFAULT 0 / DEFAULT FALSE — PG rejects DEFAULT 0 for BOOLEAN).
  Verified live on postgres:16-alpine.

  Photo-task wait_for budget extends 45s -> 75s when timelapse_was_active
  so the notification carries the bed-up photo instead of falling back
  to the live-cam grab on slow links.

  Scope limit, documented in the camera wiki: prints started directly
  on the printer touchscreen / Bambu Handy / Bambu Studio Send bypass
  both dispatch paths, so the override doesn't fire there. Future
  option: mid-print M981 S1 P20000 MQTT toggle in on_print_start.

  Setting description rewritten in all 11 locales to drop the "only
  works when timelapse enabled" caveat (Bambuddy now forces it) and
  explain the kept-or-deleted behaviour.
2026-06-05 13:53:26 +02:00
maziggy 5680f5d34b fix(scheduler): watchdogs no longer falsely treat FINISH->IDLE as "print landed" (#1370)
Both the queue-side _watchdog_print_start and the direct-dispatch
  _verify_print_response used `status.state != pre_state` to decide
  whether a project_file command had been accepted. When a printer was
  in FINISH at dispatch time (un-dismissed post-print prompt from a
  prior job), the firmware silently rejected the new command; if the
  user then dismissed the screen prompt, the printer moved FINISH ->
  IDLE and the watchdog returned early as "command landed" — leaving
  the queue row stuck at status='printing' indefinitely and the
  scheduler permanently marking the printer as busy.

  Narrow the "command landed" check in both verifiers to an allow-list
  of active-print states (PREPARE / SLICING / RUNNING / PAUSE).
  Inactive transitions (FINISH -> IDLE, etc.) no longer short-circuit
  the revert. The subtask_id-advance signal stays in place for H2D's
  slow FINISH -> PREPARE transition (#1078).

  Also wrap _watchdog_print_start's revert commit and
  printer_manager._persist_awaiting_plate_clear in run_with_retry so
  SQLite single-writer contention can't silently drop these writes.
  The revert path returns a tristate sentinel so the post-revert MQTT
  session-recovery logic only runs when we actually reverted (or the
  commit failed) — not when on_print_complete had already cleared the
  row, where a forced reconnect could break a healthy concurrent print.
2026-05-16 09:05:05 +02:00
maziggy 69b6b5a334 fix(#1150): skip MQTT reconnect on watchdog timeout when project_file landed
Background: P1P firmware can take ~135 s after a project_file MQTT publish
  to actually start parsing the uploaded .3mf — gcode_state stays IDLE and
  subtask_id doesn't advance until parse completes. The dispatch watchdogs
  treated the missed transition as a #887/#936 half-broken session and called
  force_reconnect_stale_session, which interrupts the printer's in-progress
  parse and triggers 0500_4003 ("can't parse print file") on the printer side.

  Both #1150 (slow parse) and #887/#936 (zombie session) look identical from
  state and subtask_id alone — both have stale state and stale subtask_id with
  fresh telemetry. The distinguishing signal is the printer's gcode_file
  field: it updates in push_status when the project_file command actually
  lands on the printer, but stays unchanged when the publish was silently
  swallowed.

  Both watchdogs (_verify_print_response in background_dispatch and
  _watchdog_print_start in print_scheduler) now capture pre_gcode_file from
  printer_manager.get_status() before sending the publish, then on timeout
  compare it against the last good status seen during the poll loop. If the
  file changed, the command landed → log a #1150 warning, skip the forced
  reconnect to avoid 0500_4003 mid-parse. If unchanged, fall through to the
  original force_reconnect_stale_session call so the half-broken-session
  recovery is preserved exactly.

  Caveat documented in code: in a retry-same-file slow-parse scenario the
  gcode_file looks identical pre/post-publish, so the watchdog falls through
  to the reconnect path and the user still hits 0500_4003 on that retry.
  Accepted to avoid breaking the half-broken-session recovery, which is the
  more impactful regression of the two.

  The new pre_gcode_file kwarg has a default of None on both watchdog
  functions, so any caller that doesn't pass it keeps the original
  reconnect-on-timeout behavior verbatim.

  4 new unit tests cover both watchdogs: skip on gcode_file change (#1150
  fix), reconnect when unchanged (#936 protection preserved), skip when
  pre=None and current is non-None (printer just connected), reconnect when
  pre_gcode_file arg is omitted (backward-compat). All 439 existing
  dispatch / scheduler / mqtt tests pass unchanged.
2026-04-28 09:26:25 +02:00
maziggy 9d0418688c fix(#1134): propagate background-dispatch watchdog timeout as job failure
Follow-up to #1042. The post-dispatch watchdog _verify_print_response was
  fire-and-forget — it correctly detected when the printer never transitioned
  (HMS error pending, half-broken MQTT session, plate-clear gate, SD card
  fault) and force-reconnected the MQTT session, but the dispatch job had
  already been marked successful on the optimistic MQTT-publish-acknowledged
  path. The UI carried on showing "Print started successfully" while the
  printer sat idle.

  The watchdog now returns bool and is awaited inline by both call sites in
  _run_reprint_archive and _run_print_library_file. On False the call sites
  raise a RuntimeError carrying a user-actionable message ("Printer did not
  acknowledge print command — state still {pre_state}. Check the printer for
  a pending error...") which routes through the existing _run_active_job →
  _mark_job_finished(failed=True) → background_dispatch WS broadcast path.
  Library-file flow rolls back the freshly-created archive on timeout so no
  phantom row is left behind for a print that never started.

  The watchdog now also accepts subtask_id advancing past pre_subtask_id as a
  definitive "command landed" signal — same as the queue-side watchdog at
  print_scheduler.py:1992 — so slow H2D FINISH→PREPARE transitions (~50 s
  observed) don't false-fail when the printer has clearly accepted the
  project_file but is still in FINISH. Default timeout raised from 15 s to
  90 s to match the queue-side watchdog and give the same headroom on both
  dispatch paths. Brief mid-window MQTT disconnects keep polling instead of
  immediately failing — matches what the queue watchdog already does and
  avoids false-failing on transient telemetry gaps.

  11 new tests in test_background_dispatch_watchdog.py: state-change pickup,
  subtask_id-change pickup with state still FINISH, neither-changed timeout
  plus force_reconnect_stale_session call, pre_subtask_id=None backwards-
  compat, post-dispatch subtask_id=None not counting as a change, brief
  disconnect not short-circuiting the window, persistent disconnect for the
  full window returning False, default-timeout=90s contract, _run_reprint_archive
  raises RuntimeError with the captured pre-state args on watchdog False,
  _run_reprint_archive happy path doesn't rollback, _run_active_job marks
  the job failed with the message when _process_job raises RuntimeError.
2026-04-26 08:58:08 +02:00