<?php

namespace Kirby\Http\Request\Auth;

use Kirby\Http\Request\Auth;
use Kirby\Toolkit\Str;

/**
 * HTTP basic authentication data
 *
 * @package   Kirby Http
 * @author    Bastian Allgeier <bastian@getkirby.com>
 * @link      https://getkirby.com
 * @copyright Bastian Allgeier
 * @license   https://opensource.org/licenses/MIT
 */
class BasicAuth extends Auth
{
    /**
     * @var string
     */
    protected $credentials;

    /**
     * @var string
     */
    protected $password;

    /**
     * @var string
     */
    protected $username;

    /**
     * @param string $token
     */
    public function __construct(string $data)
    {
        parent::__construct($data);

        $this->credentials = base64_decode($data);
        $this->username    = Str::before($this->credentials, ':');
        $this->password    = Str::after($this->credentials, ':');
    }

    /**
     * Returns the entire unencoded credentials string
     *
     * @return string
     */
    public function credentials(): string
    {
        return $this->credentials;
    }

    /**
     * Returns the password
     *
     * @return string|null
     */
    public function password(): ?string
    {
        return $this->password;
    }

    /**
     * Returns the authentication type
     *
     * @return string
     */
    public function type(): string
    {
        return 'basic';
    }

    /**
     * Returns the username
     *
     * @return string|null
     */
    public function username(): ?string
    {
        return $this->username;
    }
}