// Extracts the SVG path data of a few Carbon icons into src/pdf/decor/icons.generated.ts, so the PDF code
// carries plain path strings and never imports React icon components (src/pdf stays free of the DOM).
// Run: npm run decor:icons
import { readFileSync, writeFileSync } from "node:fs";
import path from "node:path";
import { fileURLToPath } from "node:url";

const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
const ICONS = { phone: "Phone", email: "Email", location: "Location" };

const out = {};
for (const [key, name] of Object.entries(ICONS)) {
  const src = readFileSync(path.join(ROOT, "node_modules/@carbon/icons-react/es", `${name}.js`), "utf8");
  const viewBox = /viewBox: "([^"]+)"/.exec(src)?.[1];
  const paths = [...src.matchAll(/jsx\("path", \{ d: "([^"]+)" \}\)/g)].map((m) => m[1]);
  if (!viewBox || paths.length === 0 || /jsx\("(circle|rect|polygon)"/.test(src)) throw new Error(`${name}: unexpected icon structure`);
  out[key] = { viewBox, paths };
}

const body = `// Generated by \`npm run decor:icons\` (scripts/decor/icons.mjs). Do not edit by hand.
// Path data of IBM Carbon icons, Apache-2.0 (see ICONS-NOTICE.md).

export interface IconArt {
  /** "minX minY width height", as in the Carbon source. */
  viewBox: string;
  paths: string[];
}

export const ICONS = ${JSON.stringify(out, null, 2)} as const satisfies Record<string, IconArt>;

export type IconName = keyof typeof ICONS;
`;
writeFileSync(path.join(ROOT, "src/pdf/decor/icons.generated.ts"), body);
console.log(`icons.generated.ts: ${Object.keys(out).join(", ")}`);