yogibook_aury_new/public/send_email.php

<?php
// Includi il file mailer.php per caricare le dipendenze e le variabili .env
require_once 'class/mailer.php';

// Importa le classi necessarie
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

// Imposta l'header per JSON
header('Content-Type: application/json');
ini_set('display_errors', '0'); // gli avvisi vanno nel log, non nella risposta

// Funzione per generare il template HTML dell'email
function generateEmailTemplate($message)
{
    return <<<HTML
<!DOCTYPE html>
<html lang="it">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Email da YogiBook</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background-color: #f4f4f4;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 600px;
            margin: 20px auto;
            background-color: #ffffff;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        .header {
            background-color: #e6f0fa;
            padding: 20px;
            text-align: center;
        }
        .header img {
            max-width: 100px; /* Ridotto da 150px a 100px per rimpicciolire il logo */
        }
        .content {
            padding: 30px;
            color: #333333;
            line-height: 1.6;
        }
        .content p {
            margin-bottom: 15px;
        }
        .footer {
            background-color: #e6f0fa;
            padding: 15px;
            text-align: center;
            font-size: 14px;
            color: #666666;
        }
        .footer a {
            color: #4a90e2;
            text-decoration: none;
        }
        .footer a:hover {
            text-decoration: underline;
        }
        .yoga-decoration {
            width: 100%;
            height: 10px;
            background: linear-gradient(to right, #4a90e2, #87ceeb);
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="yoga-decoration"></div>
        <div class="header">
       <img src="https://yogasoul.it/wp-content/uploads/2021/03/logotransizione_final2.png"
     alt="YogaSoul - My WordPress Blog"
     width="120"
          style="display: block; width: 120px; max-width: 120px; height: auto; margin: 0 auto;">

        </div>
        <div class="content">
            <p>$message</p>
        </div>
        <div class="footer">
            <p>Ti aspettiamo alla tua prossima lezione di yoga!</p>
            <p><a href="https://yogasoul.it">YogaSoul</a> | <a href="mailto:info@yogasoul.it">Contattaci</a></p>
        </div>
        <div class="yoga-decoration"></div>
    </div>
</body>
</html>
HTML;
}

// Trasforma il testo del modulo in HTML:
// **testo** -> grassetto, link cliccabili, a capo -> <br>
function formatEmailBody(string $text): string
{
    $html = htmlspecialchars($text, ENT_QUOTES, 'UTF-8');
    $html = preg_replace('/\*\*([^*\n]+?)\*\*/', '<strong>$1</strong>', $html);
    $html = preg_replace('~(https?://[^\s<]+)~', '<a href="$1">$1</a>', $html);
    return nl2br($html);
}

// Gestione della richiesta
try {
    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
        throw new Exception('Metodo non consentito.');
    }

    $subject = isset($_POST['subject']) ? trim($_POST['subject']) : '';
    $body = isset($_POST['body']) ? trim($_POST['body']) : '';
    $recipients = isset($_POST['recipients']) ? json_decode($_POST['recipients'], true) : [];

    if (empty($subject) || empty($body) || empty($recipients) || !is_array($recipients)) {
        throw new Exception('Dati mancanti.');
    }

    // Invii multipli: più tempo a disposizione dello script
    @set_time_limit(300);

    // Configura PHPMailer
    $mail = new PHPMailer(true);
    $mail->isSMTP();
    $mail->Host       = $_ENV['MAIL_HOST'];
    $mail->SMTPAuth   = true;
    $mail->Username   = $_ENV['MAIL_USERNAME'];
    $mail->Password   = $_ENV['MAIL_PASSWORD'];
    $mail->SMTPSecure = $_ENV['MAIL_ENCRYPTION'];
    $mail->Port       = (int) $_ENV['MAIL_PORT'];
    $mail->Timeout    = 5;
    $mail->SMTPKeepAlive = true; // una sola connessione per tutti gli invii
    $mail->CharSet    = 'UTF-8'; // accenti ed emoji corretti

    $mail->setFrom($_ENV['MAIL_FROM_ADDRESS'], $_ENV['MAIL_FROM_NAME']);
    $mail->isHTML(true);
    $mail->Subject = $subject;

    $sent = 0;
    $failed = [];

    // Un'email per ogni destinatario: nessuno vede gli indirizzi degli altri
    foreach ($recipients as $r) {
        $email = trim($r['email'] ?? '');
        if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
            $failed[] = $email !== '' ? $email : '(email vuota)';
            continue;
        }

        $nome = trim((string) ($r['nome'] ?? ''));
        if ($nome === '') {
            $nome = 'allieva/o';
        }

        $personalText = str_replace('{nome}', $nome, $body);

        try {
            $mail->clearAddresses();
            $mail->addAddress($email, $nome);
            $mail->Body    = generateEmailTemplate(formatEmailBody($personalText));
            $mail->AltBody = str_replace('**', '', $personalText);
            $mail->send();
            $sent++;
        } catch (Exception $e) {
            $failed[] = $email;
            error_log('Errore invio a ' . $email . ': ' . $mail->ErrorInfo);
            $mail->getSMTPInstance()->reset();
        }
    }

    $mail->smtpClose();

    if ($sent === 0) {
        throw new Exception('Nessuna email inviata.');
    }

    $message = 'Email inviate: ' . $sent;
    if (!empty($failed)) {
        $message .= '. Non inviate (' . count($failed) . '): ' . implode(', ', $failed);
    }

    echo json_encode(['success' => true, 'message' => $message]);
} catch (\Throwable $e) {
    error_log('Errore in send_email.php: ' . $e->getMessage() . ' in ' . $e->getFile() . ' at line ' . $e->getLine());
    echo json_encode(['success' => false, 'message' => "Errore nell'invio dell'email: " . $e->getMessage()]);
}