#!/usr/bin/env node
// CLI: create-user <username> <password> [--admin]
// Useful for adding additional users outside the web UI.

const bcrypt = require('bcryptjs');
const { initDatabase, getDatabase, closeDatabase } = require('../database');

async function main() {
    const args = process.argv.slice(2);
    if (args.length < 2) {
        console.error('Usage: npm run create-user -- <username> <password> [--admin]');
        process.exit(1);
    }
    const username = args[0];
    const password = args[1];
    const isAdmin = args.includes('--admin');

    if (password.length < 8) {
        console.error('Passwort muss mindestens 8 Zeichen lang sein');
        process.exit(1);
    }

    initDatabase();
    // Give initDatabase a moment to run its serialized statements.
    await new Promise(r => setTimeout(r, 200));

    const db = getDatabase();
    const hash = await bcrypt.hash(password, 10);

    await new Promise((resolve, reject) => {
        db.run(
            'INSERT INTO users (username, password_hash, display_name, is_admin) VALUES (?, ?, ?, ?)',
            [username, hash, username, isAdmin ? 1 : 0],
            function (err) {
                if (err) reject(err);
                else resolve(this.lastID);
            }
        );
    }).then((id) => {
        console.log(`User '${username}' angelegt (id=${id}, admin=${isAdmin}).`);
    }).catch((err) => {
        if (/UNIQUE/.test(err.message)) {
            console.error(`User '${username}' existiert bereits.`);
        } else {
            console.error('Fehler:', err.message);
        }
        process.exitCode = 1;
    });

    closeDatabase();
}

main().catch(err => {
    console.error(err);
    process.exit(1);
});