// After moving the project to another machine (e.g. Windows PC → Linux server), point stored
// media paths in the content library and publishing queue at the new location.
//   node connector/scripts/relocate-paths.js            (shows what would change)
//   node connector/scripts/relocate-paths.js --write    (saves; keeps a .bak copy of each file)
// In Docker: docker compose run --rm app node connector/scripts/relocate-paths.js --write
import fs from "node:fs";
import path from "node:path";
import { PROJECT_ROOT } from "../src/env.js";

const FILES = ["data/library/items.json", "data/schedule/queue.json"].map((f) => path.join(PROJECT_ROOT, f));
const write = process.argv.includes("--write");
const DATA_DIR = path.join(PROJECT_ROOT, "data");

// Any absolute path (Windows or POSIX) that contains a "data" folder → same path under this machine's data/.
function relocate(value) {
  if (typeof value !== "string" || /^https?:\/\//i.test(value)) return value;
  const m = value.match(/^(?:[A-Za-z]:)?[\\/](?:.*?[\\/])?data[\\/](.+)$/);
  if (!m) return value;
  const next = path.join(DATA_DIR, ...m[1].split(/[\\/]/));
  return next === value ? value : next;
}

let changed = 0, missing = 0;
function walk(node) {
  if (Array.isArray(node)) return node.map(walk);
  if (node && typeof node === "object") return Object.fromEntries(Object.entries(node).map(([k, v]) => [k, walk(v)]));
  const next = relocate(node);
  if (next !== node) {
    changed++;
    if (!fs.existsSync(next)) { missing++; console.log(`  missing on this machine: ${next}`); }
  }
  return next;
}

for (const file of FILES) {
  if (!fs.existsSync(file)) { console.log(`skip (not found): ${path.relative(PROJECT_ROOT, file)}`); continue; }
  const before = changed;
  const out = walk(JSON.parse(fs.readFileSync(file, "utf8")));
  console.log(`${path.relative(PROJECT_ROOT, file)}: ${changed - before} path(s) to update`);
  if (write && changed > before) {
    fs.copyFileSync(file, `${file}.bak`);
    fs.writeFileSync(file, JSON.stringify(out, null, 2));
  }
}
console.log(write ? `Done. ${changed} path(s) updated, ${missing} file(s) not found.` : `Dry run: ${changed} path(s) would change, ${missing} file(s) not found. Add --write to save.`);