<?php
error_reporting(0);
header('Content-Type: application/json');

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $inputJSON = file_get_contents('php://input');
    $input = json_decode($inputJSON, true);
    
    if (!$input || empty($input['email'])) {
        http_response_code(400);
        echo json_encode(['error' => 'Ungültige Eingabe']);
        exit;
    }
    
    $email = filter_var($input['email'], FILTER_SANITIZE_EMAIL);
    
    if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
         http_response_code(400);
         echo json_encode(['error' => 'Ungültige E-Mail Adresse']);
         exit;
    }
    
    // Send notification to Ntfy
    $ntfyUrl = 'https://ntfy.orfel.de/Schnappix-App-Testing';
    $message = "Eine neue Anfrage für das Schnappix App Testing ist eingegangen!\n\nE-Mail: $email\n\nBitte prüfen und ggf. die Registrierungslinks via E-Mail versenden.";
    
    $ch = curl_init($ntfyUrl);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $message);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Title: Neue Tester-Anmeldung',
        'Tags: mobile_phone,warning,bust_in_silhouette',
        'Click: mailto:' . $email . '?subject=Schnappix%20App%20Testing%20-%20Einladung&body=Hallo,%0A%0Avielen%20Dank%20f%C3%BCr%20dein%20Interesse%20als%20Tester!%20Hier%20sind%20die%20Links:%0A'
    ]);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    curl_exec($ch);
    curl_close($ch);
    
    echo json_encode(['success' => true]);
    exit;
}
http_response_code(405);
echo json_encode(['error' => 'Method not allowed']);