<?php

declare(strict_types=1);

namespace NetBoxStore\Http;

use NetBoxStore\Config;

final class Request
{
    /** @param array<string,mixed> $query @param array<string,mixed> $body @param array<string,string> $headers */
    public function __construct(
        public readonly string $method,
        public readonly string $path,
        public readonly array $query,
        public readonly array $body,
        public readonly array $headers,
        public readonly string $ip,
    ) {
    }

    public static function fromGlobals(Config $config): self
    {
        $uri = (string) ($_SERVER['REQUEST_URI'] ?? '/');
        $path = rawurldecode((string) parse_url($uri, PHP_URL_PATH));
        $path = '/' . trim($path, '/');
        if ($path !== '/') {
            $path = rtrim($path, '/');
        }
        $headers = [];
        foreach ($_SERVER as $key => $value) {
            if (str_starts_with($key, 'HTTP_')) {
                $headers[strtolower(str_replace('_', '-', substr($key, 5)))] = (string) $value;
            }
        }
        $ip = (string) ($_SERVER['REMOTE_ADDR'] ?? '');
        if ($config->trustProxy && in_array($ip, $config->network['trustedProxyIps'], true) && isset($headers['x-forwarded-for'])) {
            $candidate = trim(explode(',', $headers['x-forwarded-for'])[0]);
            if (filter_var($candidate, FILTER_VALIDATE_IP)) {
                $ip = $candidate;
            }
        }
        return new self(
            strtoupper((string) ($_SERVER['REQUEST_METHOD'] ?? 'GET')),
            $path,
            $_GET,
            $_POST,
            $headers,
            $ip,
        );
    }
}