#!/usr/bin/env node
/**
 * Fügt allen Pages das Präfix "page-" hinzu: Dateiname und _slug werden zu "page-" + bisheriger Slug.
 * Aktualisiert Referenzen in content/de (alle .json5 – nur "links"-Arrays können Page-Slugs enthalten;
 * Einzelne Ersetzung pro Slug, um Kollisionen mit Tag-Namen etc. zu vermeiden).
 */

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 PAGE_DIR = path.join(CONTENT_DE, "page");

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

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

for (const file of files) {
  const oldSlug = file.replace(/\.json5$/, "");
  if (oldSlug.startsWith("page-")) continue;
  oldToNew.set(oldSlug, "page-" + oldSlug);
}

console.log("Präfix page- für", oldToNew.size, "Pages");

for (const [oldSlug, newSlug] of oldToNew) {
  const filePath = path.join(PAGE_DIR, oldSlug + ".json5");
  const data = parseJson5(fs.readFileSync(filePath, "utf8"));
  data._slug = newSlug;
  const newPath = path.join(PAGE_DIR, newSlug + ".json5");
  fs.writeFileSync(newPath, JSON.stringify(data, null, 2) + "\n", "utf8");
  fs.unlinkSync(filePath);
}

const NAV_DIR = path.join(CONTENT_DE, "navigation");
for (const file of fs.readdirSync(NAV_DIR).filter((f) => f.endsWith(".json5"))) {
  const filePath = path.join(NAV_DIR, file);
  let content = fs.readFileSync(filePath, "utf8");
  let changed = false;
  for (const [oldSlug, newSlug] of oldToNew) {
    const escaped = oldSlug.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
    const re = oldSlug === "links"
      ? new RegExp('"links"(?!\\s*:)', "g")
      : new RegExp('"' + escaped + '"', "g");
    const newContent = content.replace(re, '"' + newSlug + '"');
    if (newContent !== content) {
      content = newContent;
      changed = true;
    }
  }
  if (changed) fs.writeFileSync(filePath, content, "utf8");
}

console.log("Fertig. Page-Präfix gesetzt und Referenzen aktualisiert.");