When a print targets a single plate from a multi-plate 3MF, both the
internal Filament Inventory tracker and the Spoolman-mode tracker parsed
the 3MF without a plate filter and summed every plate's filament — so a
single lid print debited the spool the entire file's grey + black totals.
The 3MF parser already supports plate_id (queue pre-flight uses it at
print_queue.py:254/:286). Plumbed it through both dispatch paths:
Queue path:
- PrintSession gains a plate_id field; on_print_start queries the
printer's currently-printing queue row and records queue_item.plate_id
onto the session.
- _track_from_3mf accepts plate_id and passes it to the extractor.
- store_print_data moves its existing queue-item lookup above the
extract and uses queue_item.plate_id as the plate filter.
Direct-Print path (reprintArchive / printLibraryFile — never goes
through the queue):
- _print_plate_ids dict added in main.py, parallel to _print_ams_mappings.
- register_expected_print accepts plate_id and stores it; the 2 sites in
background_dispatch.py and the 1 site in print_scheduler.py now pass
it (resolve was already happening, just needed reordering before the
register call so the value is available).
- Expected-print promotion in main.py injects _print_plate_ids[archive_id]
into the session, guarded so a queue capture wins over the dict.
- _get_start_plate_id helper feeds plate_id into all 3
_store_spoolman_print_data call sites; spoolman_tracking.store_print_data
takes the caller value first, falls back to queue_item.plate_id.
PrintArchive.filament_used_grams stays file-level summed by design
(#1593's contract — the archive describes the file, not the run); only
the per-run usage attribution becomes plate-aware. Single-plate direct
prints resolve to plate_id=1 → plate 1 = whole file, identical to the
prior no-filter behaviour.
When auto_archive was disabled but the print was dispatched by BamBuddy
(queue/reprint), on_print_start discarded the expected print entry and
returned early. The archive was never promoted to _active_prints, so at
completion archive_id and ams_mapping were both None — all tracking paths
failed silently. Now detects expected prints before the auto-archive
early-return and falls through to the normal promotion path. Also injects
the stored ams_mapping into the usage tracker session for printers where
MQTT request topic subscription fails (P1S, A1).
maziggy