const bcrypt = require('bcrypt');
const saltRounds = 10;

class PasswordService {
    /**
     * Hashes the password in parameters.
     * @param {String} password The plain text password.
     * @returns The hashed password.
     */
    hashPassword(password) {
        const salt = bcrypt.genSaltSync(saltRounds);
        return bcrypt.hashSync(password, salt);
    }

    /**
     * Checks if the {@code plainTextPassword} matches the hashed password.
     * @param {String} plainTextPassword The plain text password.
     * @param {String} hashedPassword The hashed password.
     * @returns A boolean.
     */
    areSamePasswords(plainTextPassword, hashedPassword) {
        return bcrypt.compareSync(plainTextPassword, hashedPassword);
    }
}

const singleton = new PasswordService();
module.exports = singleton;