<?php
// OriginHeader.php
// Created: 2022-02-14
// Updated: 2022-02-27

namespace Index\Http\Headers;

use Index\DateTime;
use Index\Http\HttpHeader;

class OriginHeader {
    private bool $isNull;
    private string $scheme;
    private string $host;
    private int $port;

    public function __construct(bool $isNull, string $scheme, string $host, int $port) {
        $this->isNull = $isNull;
        $this->scheme = $scheme;
        $this->host = $host;
        $this->port = $port;
    }

    public function isNull(): bool {
        return $this->isNull;
    }

    public function isValid(): bool {
        return $this->isNull || ($this->scheme !== '' && $this->host !== '');
    }

    public function getScheme(): string {
        return $this->scheme;
    }

    public function getHost(): string {
        return $this->host;
    }

    public function hasPort(): bool {
        return $this->port > 0;
    }

    public function getPort(): int {
        return $this->port;
    }

    public static function parse(HttpHeader $header): OriginHeader {
        $line = $header->getFirstLine();

        if($line === 'null')
            return new OriginHeader(true, '', '', -1);

        return new OriginHeader(
            false,
            parse_url($line, PHP_URL_SCHEME) ?? '',
            parse_url($line, PHP_URL_HOST) ?? '',
            parse_url($line, PHP_URL_PORT) ?? -1
        );
    }
}