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

namespace Index\Http\Headers;

use Index\UrlEncoding;
use Index\Http\HttpHeader;

class CookieHeader {
    private array $cookies;

    public function __construct(array $cookies) {
        $this->cookies = $cookies;
    }

    public function getCookies(): array {
        return $this->cookies;
    }

    public function hasCookie(string $name): bool {
        return isset($this->cookies[$name]);
    }

    public function getCookie(string $name, int $filter = FILTER_DEFAULT, array|int $options = 0): mixed {
        if(!isset($this->cookies[$name]))
            return null;
        return filter_var($this->cookies[$name] ?? null, $filter, $options);
    }

    public static function parse(HttpHeader $header): CookieHeader {
        $cookies = [];
        $lines = $header->getLines();

        foreach($lines as $line) {
            $parts = explode(';', $line);

            foreach($parts as $part) {
                $kvp = explode('=', $part, 2);
                $cookies[rawurldecode($kvp[0])] = rawurldecode($kvp[1] ?? '');
            }
        }

        return new CookieHeader($cookies);
    }
}