// Trimmed, read-only copy of agap-mcp/src/vaultwarden.js (kb task #64).
//
// Deliberate differences from the master copy:
//  - Only the 3 read tools are implemented: get password, get item, list
//    items. vwCreateLogin / vwUpdatePassword (and AI_COLLECTION, which only
//    those write paths needed) are NOT here — this server must never be able
//    to write to the vault, even in principle.
//  - Authenticates as a DEDICATED bot user (BW_EMAIL=adolf-vault@auth.local),
//    never the master allogn@gmail.com account. No default email/password —
//    both must be explicit in .env so this can never silently fall back to
//    the master identity.
//  - BITWARDENCLI_APPDATA_DIR (see docker-compose.yml) points at this
//    service's OWN volume, separate from the agap-mcp/marketplace-mcp host
//    bind mount (`/home/alvis/.config/Bitwarden CLI`) — the bot's bw
//    login/session state must never share a directory with the master's.
//
// The real fence is server-side: the bot user is granted read-only access to
// a narrow "Adolf" collection only (not the whole "AI" collection). This
// client code does not filter by collection — Vaultwarden itself only
// returns items the bot user's permissions allow, whatever org-wide ORG_ID
// is passed.
import { execFileSync } from 'child_process';

const BW = 'bw';
const ORG_ID = '4bd75130-b4d3-48d4-a4cb-e52b70295a51';

let _session = null;

function bwEnv() {
  const env = { ...process.env };
  for (const k of ['HTTPS_PROXY', 'HTTP_PROXY', 'ALL_PROXY', 'https_proxy', 'http_proxy', 'all_proxy'])
    delete env[k];
  env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
  return env;
}

function run(args, input) {
  return execFileSync(BW, args, {
    env: bwEnv(),
    encoding: 'utf8',
    input,
    stdio: input ? ['pipe', 'pipe', 'pipe'] : ['ignore', 'pipe', 'pipe'],
  }).trim();
}

export async function initVaultwarden() {
  const email = process.env.BW_EMAIL;
  const password = process.env.BW_PASSWORD;
  const server = process.env.VW_URL;
  if (!email || !password) {
    throw new Error('BW_EMAIL and BW_PASSWORD env vars are required — the dedicated adolf-vault@auth.local bot credentials, never the master account (see .env.example)');
  }
  if (!server) {
    throw new Error('VW_URL env var is required — this service owns a FRESH BITWARDENCLI_APPDATA_DIR volume (unlike agap-mcp/marketplace-mcp, which reuse the host dir that already has `bw config server` set), so it must configure the server itself on every boot (see .env.example)');
  }

  // Idempotent — safe to call on every boot, including against an
  // already-configured appdata dir.
  run(['config', 'server', server]);

  let status = 'unauthenticated';
  try {
    status = JSON.parse(run(['status'])).status;
  } catch {}

  if (status === 'unauthenticated') {
    run(['login', email, password, '--raw']);
  }

  _session = run(['unlock', password, '--raw']);
  run(['sync', '--session', _session]);
  console.log('Vaultwarden: ready (adolf-vault bot identity)');
}

function session() {
  if (!_session) throw new Error('Vaultwarden not initialized');
  return _session;
}

export function vwGetPassword(name) {
  return run(['get', 'password', name, '--session', session()]);
}

export function vwGetItem(name) {
  return JSON.parse(run(['get', 'item', name, '--session', session()]));
}

export function vwListItems(search) {
  const args = ['list', 'items', '--session', session()];
  if (search) args.push('--search', search);
  return JSON.parse(run(args));
}

export function vwListOrgItems(search) {
  // Server-side collection permissions (not this code) decide what actually
  // comes back — the bot user only sees the narrow "Adolf" collection.
  const args = ['list', 'items', '--organizationid', ORG_ID, '--session', session()];
  if (search) args.push('--search', search);
  return JSON.parse(run(args));
}