// Preserve the backend's exact transitive SDK graph; top-level version equality alone is insufficient.
import { readFileSync, writeFileSync } from 'node:fs';
const backend = JSON.parse(readFileSync(new URL('../../backend/package-lock.json', import.meta.url)));
const manifest = JSON.parse(readFileSync(new URL('./package.json', import.meta.url)));
const packages = { '': { name: manifest.name, version: manifest.version, dependencies: manifest.dependencies, engines: manifest.engines } };
function resolve(from, dependency) {
  const parts = from.split('/').filter(Boolean);
  while (true) {
    const candidate = [...parts, 'node_modules', dependency].join('/');
    if (backend.packages[candidate]) return candidate;
    if (!parts.length) return null;
    parts.pop();
  }
}
const queue = Object.keys(manifest.dependencies).map(name => resolve('', name));
while (queue.length) {
  const path = queue.pop();
  if (!path) throw new Error('Missing dependency in backend lockfile');
  if (packages[path]) continue;
  const entry = { ...backend.packages[path] };
  delete entry.dev;
  packages[path] = entry;
  for (const name of Object.keys(entry.dependencies || {})) queue.push(resolve(path, name));
  for (const name of Object.keys(entry.optionalDependencies || {})) {
    const resolved = resolve(path, name);
    if (resolved) queue.push(resolved);
  }
}
writeFileSync(new URL('./package-lock.json', import.meta.url), JSON.stringify({ name: manifest.name, version: manifest.version,
  lockfileVersion: 3, requires: true, packages: Object.fromEntries(Object.entries(packages).sort(([a], [b]) => a.localeCompare(b))) }, null, 2) + '\n');
console.log(`Copied ${Object.keys(packages).length - 1} locked backend dependencies.`);