Server.php

<?php

declare(strict_types=1);

namespace Gotify;

use Gotify\Exception\GotifyException;

/**
 * Class for setting and validating a server URI
 */
final class Server
{
    /** @var string $uri Server URI */
    private string $uri = '';

    /**
     *
     * @param string $uri Server URI
     */
    public function __construct(string $uri)
    {
        $this->uri = $this->validate($uri);
    }

    /**
     * Get server
     *
     * @return string Returns server URI
     */
    public function get(): string
    {
        return $this->uri;
    }

    /**
     * Validate server URI
     *
     * Checks if server URI starts with `https://` or `http://`.
     *
     * Checks if server URI ends with a forward slash and adds it if missing.
     *
     * @param string $uri Server URI
     * @return string $uri Returns validated server URI
     *
     * @throws GotifyException if Server URL doesn't start with `https://` or `http://`.
     */
    private function validate(string $uri): string
    {
        if (preg_match('/^https?:\/\//', $uri) === 0) {
            throw new GotifyException('Server URI must start with https:// or http://');
        }

        if (substr($uri, -1) !== '/') {
            $uri .= '/';
        }

        return $uri;
    }
}