<?php

include_once './includes/form/Form.php';

class SignInForm extends Form
{
	public function validate_username($username): ?string
	{
		$result = null;

		if (empty($username)) {
			$this->report_error('Please provide a username.');
		} else {
			$result = filter_var($username, FILTER_SANITIZE_STRING);
		}

		return $result;
	}

	public function validate_password($password): ?string
	{
		$result = null;

		if (empty($password)) {
			$this->report_error('Please provide a password.');
		} else {
			$result = filter_var($password, FILTER_SANITIZE_STRING);
		}

		return $result;
	}
}