"use client";
// Client-side print helpers: open a window with a self-contained A4/A5 document and print it.
// Matches the prototype's document.write approach; escapes all data so nothing user-entered becomes markup.
export const esc = (v: unknown) => String(v ?? "").replace(/[&<>"']/g, (c) => ({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" }[c] as string));
const BASE_CSS = "body{font-family:Archivo,system-ui,sans-serif;color:#201e1d;margin:0;font-size:12px;-webkit-print-color-adjust:exact;print-color-adjust:exact}h1{font-size:19px;border-bottom:2px solid #201e1d;padding-bottom:6px;margin:0}.sq{width:11px;height:11px;background:#ec3013;display:inline-block;margin-right:6px}.meta{font-size:11px;color:#555;margin:4px 0 8px}h2{font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin:16px 0 4px}table{width:100%;border-collapse:collapse}th{border-bottom:2px solid #201e1d;text-align:left;font-size:10px;letter-spacing:.06em;text-transform:uppercase;padding:4px 6px}td{border-bottom:1px solid #999;padding:4px 6px}.r{text-align:right}.ih td{background:#eee;font-weight:700;border-bottom:2px solid #201e1d}.box{width:70px;border:1.5px solid #201e1d}";
/* The print window's typeface, taken from this page rather than from Google.
*
* The popup is about:blank, so it inherits the app's CSP — style-src 'self' 'unsafe-inline' and
* font-src 'self' data:. The Google Fonts stylesheet this used to inject was therefore refused on
* every single print: the slip came out in system-ui, the console filled with violations, and each
* print made a pointless outbound request to Google from a hospital network. Archivo is already
* self-hosted through next/font, and its @font-face rules are sitting in this document's own
* stylesheets, so they are copied across instead. A sheet we can't read (there shouldn't be one)
* is skipped and the document falls back to the system stack BASE_CSS already names. */
function selfHostedFonts(): string {
let css = "";
for (const sheet of Array.from(document.styleSheets)) {
let rules: CSSRule[] = [];
try { rules = Array.from(sheet.cssRules); } catch { continue; }
for (const rule of rules) if (rule instanceof CSSFontFaceRule) css += rule.cssText;
}
if (!css) return "";
// next/font hashes the family name (__Archivo_1a2b3c), so the literal "Archivo" in BASE_CSS
// would never match the faces just copied across. The page's own computed stack is the name.
let stack = "";
try { stack = getComputedStyle(document.body).fontFamily; } catch { /* no body to read yet */ }
return css + (stack ? `body{font-family:${stack}}` : "");
}
export function openPrintWindow(title: string, bodyHtml: string, opts: { page?: string; css?: string; width?: number; height?: number } = {}) {
const w = window.open("", "_blank", `width=${opts.width || 820},height=${opts.height || 980}`);
if (!w) { alert("Pop-up blocked — allow pop-ups for ThreadCount to print."); return; }
w.document.write(`${esc(title)}${bodyHtml}`);
w.document.close(); w.focus();
setTimeout(() => { try { w.print(); } catch { /* user can print manually */ } }, 450);
}
export type Col = { t: string; r?: boolean };
/** HTML table from columns + rows (cells are escaped). */
export function tbl(cols: Col[], rows: (string | number)[][]): string {
return "" + cols.map((c) => `${esc(c.t)}`).join("") + "
" +
rows.map((r) => "" + r.map((c, i) => `${esc(c)}`).join("") + "
").join("") + "
";
}
/** Ruled A4 document with facility header and "prepared by" line, then titled sections. */
export function printDoc(title: string, meta: string, sections: { h: string; html: string }[]) {
openPrintWindow(title, `${esc(title)}
${esc(meta)}
` + sections.map((s) => `${esc(s.h)}
${s.html}`).join(""));
}
export function downloadCsv(name: string, csv: string) {
const a = document.createElement("a");
a.href = "data:text/csv;charset=utf-8," + encodeURIComponent(csv);
a.download = name; a.click();
}