#!/usr/bin/env node
/**
 * Normalisiert alle text_fragment-Dateien: Präfix "text-fragment-", _slug und Dateiname.
 * Aktualisiert Referenzen in content/de (textFragments in searchable_text).
 */

import fs from "fs";
import path from "path";
import { fileURLToPath } from "url";

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const CONTENT_DE = path.join(__dirname, "..", "content", "de");
const TEXT_FRAGMENT_DIR = path.join(CONTENT_DE, "text_fragment");

function parseJson5(str) {
  try {
    return JSON.parse(str);
  } catch {
    return null;
  }
}

const files = fs.readdirSync(TEXT_FRAGMENT_DIR).filter((f) => f.endsWith(".json5")).sort();
const oldToNew = new Map();

for (const file of files) {
  const base = file.replace(/\.json5$/, "");
  const filePath = path.join(TEXT_FRAGMENT_DIR, file);
  const raw = fs.readFileSync(filePath, "utf8");
  const data = parseJson5(raw);
  const oldSlug = data?._slug ?? base;
  const newSlug = "text-fragment-" + oldSlug;
  oldToNew.set(oldSlug, newSlug);

  const newData = { ...data, _slug: newSlug };
  const newFile = newSlug + ".json5";
  const newPath = path.join(TEXT_FRAGMENT_DIR, newFile);
  fs.writeFileSync(newPath, JSON.stringify(newData, null, 2) + "\n", "utf8");
  if (newFile !== file) {
    fs.unlinkSync(filePath);
  }
}

// Referenzen in searchable_text (textFragments-Arrays) ersetzen
const searchableDir = path.join(CONTENT_DE, "searchable_text");
for (const file of fs.readdirSync(searchableDir).filter((f) => f.endsWith(".json5"))) {
  const filePath = path.join(searchableDir, file);
  let raw = fs.readFileSync(filePath, "utf8");
  for (const [oldSlug, newSlug] of oldToNew) {
    raw = raw.replace(new RegExp('"' + oldSlug.replace(/[.*+?^${}()|[\]\\]/g, "\\$&") + '"', "g"), '"' + newSlug + '"');
  }
  fs.writeFileSync(filePath, raw, "utf8");
}

console.log("Normalized", oldToNew.size, "text_fragment slugs:", [...oldToNew.entries()].map(([a, b]) => a + " -> " + b).join(", "));