import fs from "node:fs";
import path from "node:path";

const repoRoot = process.cwd();
const legacyHtmlRoot = path.join(repoRoot, "archive-source");

function walkHtml(dir) {
  return fs.readdirSync(dir, { withFileTypes: true }).flatMap((entry) => {
    const fullPath = path.join(dir, entry.name);
    if (entry.isDirectory()) {
      return walkHtml(fullPath);
    }
    return entry.isFile() && entry.name.endsWith(".html") ? [fullPath] : [];
  });
}

function removeWordPressResidue(html) {
  return html
    .replace(/\n?<!--\[if lt IE 9\]>\s*<script>[\s\S]*?<\/script>\s*<!\[endif\]-->\s*/g, "\n")
    .replace(
      /\n?\s*<script>\s*\/\* <!\[CDATA\[ \*\/var tribe_l10n_datatables = [\s\S]*?<\/script>/g,
      ""
    )
    .replace(/\n?<!-- Shortcodes Ultimate custom CSS - start -->\s*<!-- Shortcodes Ultimate custom CSS - end -->\s*/g, "\n");
}

let updated = 0;

for (const filePath of walkHtml(legacyHtmlRoot)) {
  const original = fs.readFileSync(filePath, "utf8");
  const cleaned = removeWordPressResidue(original);

  if (cleaned !== original) {
    fs.writeFileSync(filePath, cleaned);
    updated += 1;
  }
}

console.log(`Cleaned WordPress residue in ${updated} HTML files.`);