import {
formatInvoiceDate,
formatMoney,
type Invoice,
invoiceTotal,
} from "@/lib/invoices";
function esc(value: string): string {
return value
.replace(/&/g, "&")
.replace(//g, ">");
}
// Render an invoice into a clean, print-styled document in a new window and
// trigger the browser's print dialog, where the clinician can "Save as PDF".
// Dependency-free — no PDF library needed; swap for jsPDF later if a generated
// file is required.
export function downloadInvoicePdf(invoice: Invoice, clinicName = "temetro") {
const win = window.open("", "_blank", "width=820,height=1040");
if (!win) return;
const total = invoiceTotal(invoice);
const lineRows = invoice.lineItems
.map(
(li) => `
| ${esc(li.description)} |
${li.quantity} |
${formatMoney(li.unitPrice)} |
${formatMoney(li.quantity * li.unitPrice)} |
`,
)
.join("");
const installmentRows = invoice.installments.length
? `Installments
| Installment | Due | Amount | Status |
|---|
${invoice.installments
.map(
(it) => `
| ${esc(it.label)} |
${it.dueAt ? formatInvoiceDate(it.dueAt) : "—"} |
${formatMoney(it.amount)} |
${it.paid ? "Paid" : "Unpaid"} |
`,
)
.join("")}
`
: "";
const notes = invoice.notes
? `Notes
${esc(invoice.notes)}
`
: "";
win.document.write(`
${esc(invoice.number)}
Bill to: ${esc(invoice.name)}${invoice.fileNumber ? ` · File #${esc(invoice.fileNumber)}` : ""}
Line items
| Description | Qty | Unit price | Amount |
|---|
${lineRows || `| No line items |
`}
| Total | ${formatMoney(total)} |
${installmentRows}
${notes}
`);
win.document.close();
}