/**
 * SimpleNote Web - Init Script
 * Creates initial data structure and default library
 */

import { fileURLToPath } from 'url';
import { dirname, join, resolve } from 'path';
import { ensureDir, writeJSON, pathExists } from '../src/utils/fsHelper.js';
import { generateId } from '../src/utils/uuid.js';
import dotenv from 'dotenv';

dotenv.config();

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const projectRoot = resolve(__dirname, '..');
const dataRoot = resolve(projectRoot, process.env.DATA_ROOT || './data');

console.log(`[Init] Initializing data at: ${dataRoot}`);

const DATA_ROOT = dataRoot;
const LIBRARIES_DIR = join(DATA_ROOT, 'libraries');
const TOKENS_FILE = join(DATA_ROOT, '.auth-tokens.json');
const TAG_INDEX_FILE = join(DATA_ROOT, '.tag-index.json');

async function init() {
  // Create directories
  ensureDir(DATA_ROOT);
  ensureDir(LIBRARIES_DIR);

  // Init auth tokens
  if (!pathExists(TOKENS_FILE)) {
    const adminToken = process.env.ADMIN_TOKEN || 'snk_initial_admin_token_change_me';
    writeJSON(TOKENS_FILE, {
      version: 1,
      tokens: [
        {
          token: adminToken,
          label: 'initial-admin',
          createdAt: new Date().toISOString(),
        },
      ],
    });
    console.log(`[Init] Created .auth-tokens.json with admin token: ${adminToken}`);
  } else {
    console.log('[Init] .auth-tokens.json already exists');
  }

  // Init tag index
  if (!pathExists(TAG_INDEX_FILE)) {
    writeJSON(TAG_INDEX_FILE, {
      version: 1,
      updatedAt: new Date().toISOString(),
      tags: {},
    });
    console.log('[Init] Created .tag-index.json');
  } else {
    console.log('[Init] .tag-index.json already exists');
  }

  // Create default library
  const defaultLibPath = join(LIBRARIES_DIR, 'default');
  const defaultLibMeta = join(defaultLibPath, '.library.json');

  if (!pathExists(defaultLibMeta)) {
    const libId = generateId();
    const now = new Date().toISOString();
    ensureDir(join(defaultLibPath, 'documents'));
    ensureDir(join(defaultLibPath, 'sub-libraries'));

    writeJSON(defaultLibMeta, {
      id: libId,
      name: 'Default Library',
      parentId: null,
      path: `libraries/${libId}`,
      createdAt: now,
      updatedAt: now,
    });
    console.log(`[Init] Created default library: ${libId}`);
  } else {
    console.log('[Init] Default library already exists');
  }

  console.log('[Init] Done!');
}

init().catch(err => {
  console.error('[Init] Error:', err);
  process.exit(1);
});