<?php
/**
 * OmégaKube — Envoi formulaire de contact
 */

header('Content-Type: application/json; charset=utf-8');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type');

if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') { exit; }
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    die(json_encode(['success' => false, 'error' => 'POST requis']));
}

// === CONFIG ===
$to = 'contact@omegakube.fr';

// === LECTURE ===
$input = file_get_contents('php://input');
$data  = json_decode($input, true);
if (empty($data)) $data = $_POST;
if (empty($data)) {
    die(json_encode(['success' => false, 'error' => 'Aucune donnée reçue']));
}

foreach ($data as $k => $v) {
    $data[$k] = trim(strip_tags((string)$v));
}

// === VALIDATION ===
$errors = [];
if (empty($data['name'])    || mb_strlen($data['name'])    < 2)  $errors[] = 'Nom invalide';
if (empty($data['email'])   || !filter_var($data['email'], FILTER_VALIDATE_EMAIL)) $errors[] = 'Email invalide';
if (empty($data['message']) || mb_strlen($data['message']) < 10) $errors[] = 'Message trop court';

if ($errors) {
    die(json_encode(['success' => false, 'errors' => $errors]));
}

// === HONEYPOT ===
if (!empty($data['website'])) {
    die(json_encode(['success' => true, 'message' => 'Message envoyé !']));
}

// === SUJET ===
$subject = 'Omegakube form - ' . $data['name'] . ' - ' . date('H:i:s');

// === CORPS ===
$sep = str_repeat('=', 40);

$body  = "OmegaKube — Nouveau message de contact\n";
$body .= $sep . "\n\n";
$body .= "Nom     : " . $data['name'] . "\n";
$body .= "Email   : " . $data['email'] . "\n";
$body .= "Objet   : " . ($data['subject'] ?? 'Non précisé') . "\n";
$body .= "\n" . $sep . "\n\n";
$body .= "MESSAGE :\n\n";
$body .= $data['message'] . "\n\n";
$body .= $sep . "\n\n";
$body .= "Répondre  : " . $data['email'] . "\n";
$body .= "Reçu le   : " . date('d/m/Y H:i') . "\n";
$body .= "IP        : " . ($_SERVER['REMOTE_ADDR'] ?? '') . "\n\n";
$body .= $sep . "\n";
$body .= "OmegaKube — omegakube.fr\n";

// === HEADERS ===
$headers = implode("\r\n", [
    'MIME-Version: 1.0',
    'Content-Type: text/plain; charset=UTF-8',
    'From: OmegaKube <noreply@omegakube.fr>',
    'Reply-To: ' . $data['email']
]);

// === ENVOI ===
$sent = mail($to, $subject, $body, $headers);

// === REPONSE ===
if ($sent) {
    echo json_encode([
        'success' => true,
        'message' => 'Votre message a bien été envoyé ! Nous vous répondrons rapidement.'
    ]);
} else {
    http_response_code(500);
    echo json_encode([
        'success' => false,
        'error'   => 'Erreur lors de l\'envoi. Contactez-nous directement sur Discord.'
    ]);
}