<?php

class getSpecificData {

    public function getServerIP(): string {
        return $_SERVER['SERVER_ADDR'] ?? 'Unbekannt';
    }

    public function getUserAgent(): string {
        return $_SERVER['HTTP_USER_AGENT'] ?? 'Unbekannt';
    }

    public function getRequestURL(): string {
        return $_SERVER['REQUEST_URI'] ?? 'Unbekannt';
    }

    public function getCookie(string $name): ?string {
        return $_COOKIE[$name] ?? 'Unbekannt';
    }
    
    public function getServerCookie(string $name): ?string {
        return $_COOKIE[$name] ?? 'Unbekannt';
    }

    public function getSessionID(): string {
        return $session_id ?? 'Unbekannt ';
    }

    public function getServerPort(): string {
        return $_SERVER['SERVER_PORT'] ?? 'Unbekannt';
    }

    public function getClientPort(): string {
        return $_SERVER['REMOTE_PORT'] ?? 'Unbekannt';
    }

    public function getDocumentRoot(): string {
        return $_SERVER['DOCUMENT_ROOT'] ?? 'Unbekannt';
    }

    public function getRequestTimeFloat(): string {
        return $_SERVER['REQUEST_TIME_FLOAT'] ?? 'Unbekannt';
    }
    
    public function getQuery(): string {
        return $_SERVER['QUERY_STRING'] ?? 'Unbekannt';
    }
    
    public function getServerName(): string {
        return $_SERVER['SERVER_NAME'] ?? 'Unbekannt';
    }
    
    public function getRequestMethod(): string {
        return $_SERVER['REQUEST_METHOD'] ?? 'Unbekannt';
    }

    public function getCurrentDir(): string {
        return __DIR__ ; 
    }

    public function getDatabase(): string {
        $conn = db_connect();
        return $conn->host_info;
    }

    public function getClientIP(): string {
        $xff = $_SERVER['HTTP_X_FORWARDED_FOR'] ?? null;

        if ($xff) {
            $ips = array_map('trim', explode(',', $xff));
            $clientIp = $ips[0];
            return $clientIp;
        } else {
            return $_SERVER['REMOTE_ADDR'];
        }
    }

    public function getRequestTime(): string {
        date_default_timezone_set('Europe/Berlin');
        $timestamp = $_SERVER['REQUEST_TIME'] ?? time();
        return date('Y-m-d H:i:s', $timestamp);
    }

    function getGeoIP($ClientIP) {
        $response = file_get_contents("http://ip-api.com/json/{$ClientIP}?fields=country,countryCode");
        $data = json_decode($response);
        return $data->country;
    }

    function getWhitelistedIPs() {
        include_once 'DatabaseController.php';
        $data = DatabaseShow(
            "Whitelisted",
            "`IP-ADDRESSE`"
        );

        $results = [];
        foreach ($data as $row) {
            $results[] =$row['IP-ADDRESSE'];
        }
        return $results;
    }

    function getServerNode($ServerIP) {
        $nodes = [
            'node1' => '172.30.0.11',
            'node2' => '172.30.0.12',
            'node3' => '172.30.0.13',
            'node4' => '172.30.0.14',
        ];

        foreach ($nodes as $node => $ip) {
            if ($ServerIP == $ip) {
                // $ServerIP = $node;
                return $node;
                break;
            }
        }   
    } 

    function getClientStatus($ClientIP) {
        if (in_array($ClientIP, $this->getWhitelistedIPs())) {
            return "Trusted";
        } 
        return "Untrusted";
    }

    public function getAllData(): array {
        return [
            'Document-Root' => $this->getDocumentRoot(),
            'CurrentDir' => $this->getCurrentDir(),
            'SERVER-IP' => $this->getServerIP(),
            'Node' => $this->getServerNode($this->getServerIP()),
            'Server-Port' => $this->getServerPort(),
            'Server-Name' => $this->getServerName(),
            'Client-IP' => $this->getClientIP(),
            'Client-Port' => $this->getClientPort(),
            'User-Agent' => $this->getUserAgent(),
            'Request URL' => $this->getRequestURL(),
            'Cookie' => $this->getCookie('USER'),
            'Server Cookie' => $this->getCookie('SESSSRV'),
            'Session' => $this->getSessionID(),
            'Query' => $this->getQuery(),
            'Request-Method' => $this->getRequestMethod(),
            'Request-Time' => $this->getRequestTime(),
            'Unix-timestamp' => $this->getRequestTimeFloat(),
            'Land' => $this->getGeoIP($this->getClientIP()),
            'Database' => $this->getDatabase(),
            'Whitelisted Status' => $this->getClientStatus($this->getClientIP()),
            'Whitelisted IPs' => $this->getWhitelistedIPs(),
        ];
    }

    public function ShowAllData(): void {
        $SpecificData = (new getSpecificData())->getAllData();
        echo "<pre>";
        print_r($SpecificData);
        echo "</pre>";
    }
}

// $ShowAllDAta = (new  getSpecificData())->ShowAllData();