ba3bb415bb
A Bambu Studio or OrcaSlicer 3MF names the filaments its plates use, but reading that means shelling out to Python, so it can't be done per page load. A background pass — in the same loop as thumbnails and fingerprints — reads it once per model into models.filaments, which turns "what can I print now" into a comparison of two lists. Adds a Filament page for the spools on hand: material, colour, brand and grams left, edited in place. Matching is on material only; a project's exact colours would make almost nothing printable, and a different colour still prints. Measured on the dev library: 10 models read with no errors, the two Bambu projects resolving to four PLA colours each, and no plate images written because the reader skips --images and queues behind anything interactive. Not done yet: nothing in the library view uses this — no "printable now" badge or filter — and the Filament page itself has not been seen rendered, because the local preview browser has no session. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
85 lines
3.3 KiB
JavaScript
85 lines
3.3 KiB
JavaScript
// What each model asks for, and what you have on hand.
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//
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// A Bambu Studio / OrcaSlicer 3MF names the filaments its plates use. Reading
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// that means shelling out to Python, so it is done once per model in the
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// background — like thumbnails and fingerprints — and kept in models.filaments.
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// With that stored, "what can I print right now" is a plain query rather than
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// hundreds of subprocesses.
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const db = require('./db');
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const converter = require('./converter');
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const BATCH = 25;
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// Models that have never been looked at, paired with their first loose 3MF.
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// A model whose only 3MF sits inside an archive is left for a later pass rather
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// than paying an extraction for each one.
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const PENDING = `
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FROM models m
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LEFT JOIN LATERAL (
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SELECT f.file_path FROM files f
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WHERE f.model_id = m.id AND f.format = '3mf'
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ORDER BY f.id LIMIT 1
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) f3 ON true
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WHERE m.deleted_at IS NULL AND m.filaments_status IS NULL`;
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// "PLA Basic" and "pla basic" are the same filament; "PLA-CF" is not.
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const normalise = (s) => String(s || '').trim().toUpperCase().replace(/\s+/g, ' ');
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// The materials a model needs that nothing on hand provides. Colour is ignored
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// on purpose: matching a project's exact colours would make almost nothing
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// printable, and a different colour still prints.
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function missingMaterials(filaments, spools) {
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const onHand = new Set(spools
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.filter((s) => s.remaining_g === null || s.remaining_g === undefined || Number(s.remaining_g) > 0)
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.map((s) => normalise(s.material)));
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const needed = [...new Set((filaments || []).map((f) => normalise(f.type)).filter(Boolean))];
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return needed.filter((type) => !onHand.has(type));
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}
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// True when every filament the model names is on a spool you still have.
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// A model we know nothing about is not claimed to be printable.
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function isPrintable(filaments, spools) {
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if (!filaments || !filaments.length) return false;
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return missingMaterials(filaments, spools).length === 0;
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}
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// One pass. Returns whether it did any work, so it fits the background worker
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// loop in fingerprint.js.
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async function run() {
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const { rows } = await db.query(
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`SELECT m.id, f3.file_path ${PENDING} ORDER BY m.id LIMIT ${BATCH}`);
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if (!rows.length) return false;
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for (const row of rows) {
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if (!row.file_path) {
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await mark(row.id, 'none', null);
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continue;
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}
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try {
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const filaments = await converter.readFilaments(row.file_path);
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// A plain 3MF mesh names no filaments — that is an answer, not a failure.
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await mark(row.id, filaments.length ? 'done' : 'none', filaments.length ? filaments : null);
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} catch (err) {
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console.warn(`Could not read filaments for model ${row.id}:`, err.message);
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await mark(row.id, 'error', null);
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}
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}
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return true;
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}
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async function mark(modelId, status, filaments) {
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await db.query('UPDATE models SET filaments = $2, filaments_status = $3 WHERE id = $1',
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[modelId, filaments ? JSON.stringify(filaments) : null, status]);
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}
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async function pendingCount() {
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const { rows } = await db.query(`SELECT COUNT(*)::int AS n ${PENDING}`);
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return rows[0].n;
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}
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// Look at every model again — after adding files, say.
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async function reread() {
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await db.query('UPDATE models SET filaments_status = NULL');
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}
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module.exports = { run, pendingCount, reread, missingMaterials, isPrintable, normalise };
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