import { log } from './log.js';

/**
 * Returns valid db schema
 */
export const dbSchema = (userList) => {
  return {
    version: '1.0.0',
    userList,
  }
}

/**
 * Returns valid user schema
 */
export const userSchema = (entry) => {
  return {
    lastError: entry.lastError,
    lastUpdated: entry.lastUpdated,
    pastUsernames: entry.pastUsernames,
  }
}

/**
 * Creates db at the specified directory
 * @param {string} directory the directory the db.json file will be stored in
 */
export const createDb = async (directory) => {
  log(ctx, 'Grabbing existing directories');
  const children = await getChildDirectories(directory);
  const db = dbSchema(Object.fromEntries(children.map(e => [e, userSchema({})])));
  log(ctx, 'Writing database');
  await writeFile(`${directory}/db.json`, JSON.stringify(db, null, 2));
  log(ctx, 'Writing complete!');
}