ThreadCount
8c86c988c1
Uniform stock management for healthcare linen rooms: the coordinator app, the phone counter and the staff app, for your own server. Built from 2d04e45 on 2026-09-15. Licensed under the Functional Source License (FSL-1.1-ALv2).
149 lines
9.2 KiB
TypeScript
149 lines
9.2 KiB
TypeScript
import { redirect } from "next/navigation";
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import { currentUser } from "@/lib/session";
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import { prisma } from "@/lib/db";
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import { buildSnapshot } from "@/lib/snapshot";
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import { bcBound, itemMap, key, ledger, onhand } from "@/lib/compute";
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import AutoPrint from "@/components/AutoPrint";
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import { barcodeKind, barcodeSvg } from "@/lib/barcode";
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export const dynamic = "force-dynamic";
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type SP = Record<string, string | undefined>;
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/* Garment labels, 6 to an A4 sheet.
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*
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* Two ways in. `?code=` prints one bound code a chosen number of times — the reprint, for a label
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* that has worn off. `?item=` prints a whole garment: every size that carries a code, once per
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* garment on the shelf, which is what labelling a rack of stock that arrived unlabelled actually
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* needs. Six size-14s in the cupboard means six size-14 labels, because each of those six shirts is
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* going to have one stuck on it.
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*
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* Only ever the code that is really bound to the size. ThreadCount's internal 93XXXXXXX fallback
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* appears on no garment, so printing it would put a barcode into the linen room that no scanner has
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* ever seen. */
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export default async function LabelSheet({ searchParams }: { searchParams: Promise<SP> }) {
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const user = await currentUser();
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if (!user) redirect("/auth");
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const q = await searchParams;
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const code = String(q.code || "").trim().slice(0, 64);
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const itemId = String(q.item || "").trim().slice(0, 64);
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const copies = Math.min(24, Math.max(1, parseInt(q.copies || "6", 10) || 6));
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const reason = String(q.reason || "").slice(0, 60);
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if (!code && !itemId) redirect("/app/stock");
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const fac = await prisma.facility.findUniqueOrThrow({ where: { id: user.facilityId } });
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const label = (it: { item: string; gender: string; sku: string }) =>
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it.item + (it.gender !== "Unisex" ? ` — ${it.gender}` : "");
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/** One entry per label to be printed, in size order. */
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type Row = { code: string; name: string; size: string; sku: string };
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const rows: Row[] = [];
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let heading = "";
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if (code) {
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const bc = await prisma.barcode.findUnique({
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where: { facilityId_code: { facilityId: user.facilityId, code } },
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include: { item: { select: { item: true, gender: true, sizes: true, sku: true } } },
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});
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if (!bc) redirect("/app/stock");
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const size = String(bc.item.sizes[bc.sizeIndex] ?? bc.sizeIndex);
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for (let i = 0; i < copies; i++) rows.push({ code, name: label(bc.item), size, sku: bc.item.sku });
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heading = `${label(bc.item)} · size ${size}`;
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} else {
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const it = await prisma.catalogItem.findFirst({
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where: { id: itemId, facilityId: user.facilityId },
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select: { id: true, item: true, gender: true, sizes: true, sku: true, barcodes: { select: { code: true, sizeIndex: true } } },
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});
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if (!it) redirect("/app/stock");
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/* How many of each. Read through the same ledger the rest of the product uses rather than
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summing stock rows here: a second on-hand expression is how a screen ends up disagreeing with
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the shelf, and this one decides how much paper comes out of the printer. */
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const snap = await buildSnapshot(user);
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const L = ledger(snap);
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/* Go size by size, not code by code. A size can end up carrying more than one Barcode row — the
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supplier re-labels a range, the new code is scanned onto a size that already carries one and
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the old row survives — so walking the rows printed that size twice over, half of it in the
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code the linen room had just replaced. One garment on the shelf gets one label. The code that
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prints is the one bcBound() picks, which is the code the size's own screens show, so the
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sheet and the screen can never name different numbers for the same size. */
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const snapItem = itemMap(snap)[it.id];
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const bySize = new Map<number, string>();
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for (const b of it.barcodes) if (!bySize.has(b.sizeIndex)) bySize.set(b.sizeIndex, b.code);
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for (const si of [...bySize.keys()].sort((a, z) => a - z)) {
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const code = (snapItem ? bcBound(snap, snapItem, si) : "") || bySize.get(si)!;
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const n = Math.max(0, onhand(snap, L, key(it.id, si)));
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const size = String(it.sizes[si] ?? si);
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for (let i = 0; i < n; i++) rows.push({ code, name: label(it), size, sku: it.sku });
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}
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heading = label(it);
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// Nothing on the shelf, or no size labelled yet: say which, rather than printing a blank sheet.
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if (!rows.length) {
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return (
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<div style={{ background: "#fff", color: "#201e1d", padding: 32, fontFamily: "var(--font-body)" }}>
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<h1 style={{ fontSize: 20, fontWeight: 800, margin: 0 }}>{heading}</h1>
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<p style={{ marginTop: 12, maxWidth: "60ch", lineHeight: 1.6 }}>
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{it.barcodes.length === 0
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? "No size on this garment has a barcode yet, so there is nothing to print. Generate barcodes for it first."
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: "There is nothing on the shelf to label — every size with a barcode is showing zero on hand. Count some in, or print a single size from its own page."}
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</p>
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</div>
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);
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}
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}
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const X_NOMINAL = 0.33; // EAN-13 at 100% magnification
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const X_MIN = 0.25; // below this a hand scanner starts refusing the symbol
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const LABEL_MM = 62; // printable width inside one cell, see below
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/* barcodeSvg sizes itself in CSS pixels at whatever module width it was handed, which says nothing
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about how wide the symbol lands on paper. A 12-digit UPC-A or an alphanumeric supplier asset tag
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is not a valid EAN-13, so it falls through to Code 128 — half as wide again as the EAN-13 this
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sheet was laid out around — and at a fixed pixel width it printed past the edge of its label and
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pushed the second column off the page. So the sheet works the other way round: read back how
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many modules the symbol actually has, then pick the widest X-dimension that still fits the label,
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capped at the 0.33mm EAN-13 nominal so a short code isn't blown up to fill the cell.
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LABEL_MM is the printable width inside one cell: A4 210mm, less the 12mm @page margins, less the
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sheet's 10mm side padding, less the 6mm gutter, halved, less the 8mm padding inside the label —
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rounded down to leave the border somewhere to sit. */
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const drawn = new Map<string, { svg: string; printMm: number; xDim: number }>();
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for (const r of rows) {
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if (drawn.has(r.code)) continue;
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const svg = barcodeSvg(r.code, { module: 2, height: 58 });
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const modules = Math.round(parseFloat(/width="([\d.]+)"/.exec(svg)?.[1] || "0") / 2);
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const xDim = modules > 0 ? Math.min(X_NOMINAL, LABEL_MM / modules) : X_NOMINAL;
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drawn.set(r.code, { svg, printMm: modules * xDim, xDim });
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}
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const tooSmall = [...drawn.entries()].filter(([, d]) => d.xDim < X_MIN).length;
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return (
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<div style={{ background: "#fff", color: "#201e1d", fontFamily: "var(--font-body)", minHeight: "100vh" }}>
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<style>{`@page{size:A4;margin:12mm} html,body{background:#fff !important} .sheet{display:grid;grid-template-columns:1fr 1fr;gap:6mm;padding:6mm 10mm 10mm} .lbl{-webkit-print-color-adjust:exact;print-color-adjust:exact} .lbl svg{width:100%;height:auto;display:block} @media print{.no-print{display:none !important}}`}</style>
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<div className="no-print" style={{ padding: "10px 16px", borderBottom: "2px solid #201e1d", display: "flex", gap: 12, alignItems: "center", fontSize: 13, flexWrap: "wrap" }}>
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<b>{rows.length} label{rows.length === 1 ? "" : "s"}</b>
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<span>{heading}</span>
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{code && <span style={{ color: "#57534f" }}>{code} · {barcodeKind(code)}</span>}
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{itemId && <span style={{ color: "#57534f" }}>one per garment on hand, {drawn.size} size{drawn.size === 1 ? "" : "s"}</span>}
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{reason && <span style={{ color: "#57534f" }}>Reason: {reason}</span>}
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{/* A symbol squeezed below about 0.25mm per module is printed but not reliably readable, and
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finding that out at the shelf with a scanner in your hand is the wrong place to find out. */}
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{tooSmall > 0 && <b style={{ color: "#b8240e" }}>{tooSmall === 1 ? "One code is" : `${tooSmall} codes are`} too long to print at a scannable size on this label — bind a shorter code, or print on a wider label from your own stationery.</b>}
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<AutoPrint />
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</div>
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<div className="sheet">
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{rows.map((r, i) => {
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const d = drawn.get(r.code)!;
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return (
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<div key={i} className="lbl" style={{ border: "1.5px solid #201e1d", padding: "10mm 8mm", display: "flex", flexDirection: "column", alignItems: "center", justifyContent: "center", gap: 6, breakInside: "avoid", pageBreakInside: "avoid" }}>
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<div style={{ fontSize: 13, fontWeight: 800, letterSpacing: "-0.01em", textAlign: "center", lineHeight: 1.2 }}>{r.name}</div>
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<div style={{ fontSize: 11, fontWeight: 600, letterSpacing: "0.1em", textTransform: "uppercase", color: "#57534f" }}>Size {r.size}{r.sku ? ` · ${r.sku}` : ""}</div>
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<div style={{ width: `${d.printMm}mm`, maxWidth: "100%" }} dangerouslySetInnerHTML={{ __html: d.svg }} />
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<div style={{ fontSize: 9, letterSpacing: "0.08em", textTransform: "uppercase", color: "#7a7573" }}>{fac.slipOrg || fac.name}</div>
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</div>
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);
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})}
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</div>
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</div>
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);
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}
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