import { readFile, writeFile } from "node:fs/promises";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { PUBLIC_ROUTES } from "./routes.mjs";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const indexPath = path.resolve(__dirname, "../index.html");

const LIST_INDENT = "          ";
const WRAPPER_INDENT = "        ";

const generateListItems = () =>
  PUBLIC_ROUTES.map(
    ({ path, href, label }) => {
      const targetHref = href ?? path;
      return `${LIST_INDENT}<li><a href="${targetHref}">${label}</a></li>`;
    }
  ).join("\n");

async function main() {
  const originalContent = await readFile(indexPath, "utf8");

  const navPattern = new RegExp(
    `${WRAPPER_INDENT}<ul class="no-js-nav">[\\s\\S]*?${WRAPPER_INDENT}<\\/ul>`,
    "m"
  );
  const match = originalContent.match(navPattern);

  if (!match) {
    throw new Error(
      "Bloc <ul class=\"no-js-nav\"> introuvable dans index.html. Impossible de mettre à jour la navigation noscript."
    );
  }

  const replacement = `${WRAPPER_INDENT}<ul class="no-js-nav">\n${generateListItems()}\n${WRAPPER_INDENT}</ul>`;
  const updatedContent = originalContent.replace(navPattern, replacement);

  if (updatedContent !== originalContent) {
    await writeFile(indexPath, updatedContent, "utf8");
    console.log("✔ Mise à jour de la navigation noscript dans index.html");
  } else {
    console.log("ℹ Navigation noscript déjà à jour");
  }
}

main().catch((error) => {
  console.error("[update-noscript] Échec de la mise à jour :", error);
  process.exit(1);
});