import { Font } from "@react-pdf/renderer";
import { fileURLToPath } from "node:url";
import { dirname, join } from "node:path";

// Registered once here (not inline in invoicePdf.tsx/correctionInvoicePdf.tsx)
// and imported by both for its side effect — avoids double-registering the
// same family when renderEInvoice.ts imports both PDF modules in the same
// process.
//
// Liberation Sans, not built-in Helvetica: PDF/A-3 (required by the
// Factur-X/ZUGFeRD pipeline in src/einvoice/) has no exemption for the
// standard/base-14 fonts react-pdf ships — every font actually used must be
// embedded, and react-pdf only embeds fonts it has real font-file bytes for
// via Font.register. Liberation Sans is metrically identical to Helvetica/
// Arial (SIL Open Font License, see src/assets/fonts/LICENSE-OFL.txt), so
// embedding it doesn't shift any existing layout.
//
// Path built via fileURLToPath+join, NOT `new URL('./file', import.meta.url)`
// — that literal pattern is exactly what Next.js's Turbopack/webpack bundler
// statically detects and rewrites into its own hashed static-asset system
// (`.next/server/assets/<hash>.ttf`). When this package is consumed as a
// node_modules git dependency inside a Next.js/Payload server build, that
// rewritten hash ended up not matching the file Turbopack actually emitted,
// so every PDF render at runtime failed with `ENOENT: .../LiberationSans-
// Regular.<hash>.ttf` — reproduced even with a from-scratch `--no-cache`
// rebuild, so it wasn't a stale-cache issue, the asset-hashing itself was
// wrong for this consumption path. This file only runs server-side (a PDF
// renderer has no reason to ever reach a client bundle) and Turbopack does
// not apply the same special-cased URL rewriting to a plain
// fileURLToPath/path.join construction, so this sidesteps the bug entirely
// while still resolving to the correct absolute path at runtime.
const fontsDir = join(dirname(fileURLToPath(import.meta.url)), "assets/fonts");

Font.register({
  family: "Liberation Sans",
  fonts: [
    { src: join(fontsDir, "LiberationSans-Regular.ttf"), fontWeight: "normal" },
    { src: join(fontsDir, "LiberationSans-Bold.ttf"), fontWeight: "bold" },
  ],
});