const yaml = require('yaml');
const fs = require('fs');
const storage = require('node-persist');
const users = require('./src/users');

const userAccount = process.argv[2];
const userPassword = process.argv[3];

if (!userAccount) {
    console.error('A tool for recovering lost SillyTavern accounts. Uses a "dataRoot" setting from config.yaml file.');
    console.error('Usage: node recover.js [account] (password)');
    console.error('Example: node recover.js admin password');
    process.exit(1);
}

async function initStorage() {
    const config = yaml.parse(fs.readFileSync('config.yaml', 'utf8'));
    const dataRoot = config.dataRoot;

    if (!dataRoot) {
        console.error('No "dataRoot" setting found in config.yaml file.');
        process.exit(1);
    }

    await users.initUserStorage(dataRoot);
}

async function main() {
    await initStorage();

    /**
     * @type {import('./src/users').User}
     */
    const user = await storage.get(users.toKey(userAccount));

    if (!user) {
        console.error(`User "${userAccount}" not found.`);
        process.exit(1);
    }

    if (!user.enabled)  {
        console.log('User is disabled. Enabling...');
        user.enabled = true;
    }

    if (userPassword) {
        console.log('Setting new password...');
        const salt = users.getPasswordSalt();
        const passwordHash = users.getPasswordHash(userPassword, salt);
        user.password = passwordHash;
        user.salt = salt;
    } else {
        console.log('Setting an empty password...');
        user.password = '';
        user.salt = '';
    }

    await storage.setItem(users.toKey(userAccount), user);
    console.log('User recovered. A program will exit now.');
}

main();