<?php

namespace IQBall\Core\Http;

class HttpResponse {
    /**
     * @var array<string, string>
     */
    private array $headers;
    private int $code;

    /**
     * @param int $code
     * @param array<string, string> $headers
     */
    public function __construct(int $code, array $headers) {
        $this->code = $code;
        $this->headers = $headers;
    }

    public function getCode(): int {
        return $this->code;
    }

    /**
     * @return array<string, string>
     */
    public function getHeaders(): array {
        return $this->headers;
    }

    /**
     * @param int $code
     * @return HttpResponse
     */
    public static function fromCode(int $code): HttpResponse {
        return new HttpResponse($code, []);
    }

    /**
     * @param string $url the url to redirect
     * @param int $code only HTTP 3XX codes are accepted.
     * @return HttpResponse a response that will redirect client to given url
     */

    public static function redirect(string $url, int $code = HttpCodes::FOUND): HttpResponse {
        global $basePath;
        return self::redirect_absolute($basePath . $url, $code);
    }

    /**
     * @param string $url the url to redirect
     * @param int $code only HTTP 3XX codes are accepted.
     * @return HttpResponse a response that will redirect client to given url
     */

    public static function redirect_absolute(string $url, int $code = HttpCodes::FOUND): HttpResponse {
        if ($code < 300 || $code >= 400) {
            throw new \InvalidArgumentException("given code is not a redirection http code");
        }
        return new HttpResponse($code, ["Location" => $url]);
    }


}