From c7b621a3ea1fc9bab521113b3ef3059b191b70ad Mon Sep 17 00:00:00 2001
From: solocla <info@claudiosironi.com>
Date: Wed, 14 Oct 2026 10:51:30 +0200
Subject: [PATCH] added cancellation rules and page

---
 ...4133_create_bookingclass_cancellations.php |  44 +++
 public/cancellazioni.php                      | 304 ++++++++++++++++++
 public/delete_lesson.php                      | 119 ++++++-
 public/include/sidebar.php                    |   6 +
 public/logs/mail_cancel.log                   |   4 +
 public/userpanel.php                          |  18 +-
 6 files changed, 485 insertions(+), 10 deletions(-)
 create mode 100644 db/migrations/20261014084133_create_bookingclass_cancellations.php
 create mode 100644 public/cancellazioni.php

diff --git a/db/migrations/20261014084133_create_bookingclass_cancellations.php b/db/migrations/20261014084133_create_bookingclass_cancellations.php
new file mode 100644
index 0000000..f85fd5b
--- /dev/null
+++ b/db/migrations/20261014084133_create_bookingclass_cancellations.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class CreateBookingclassCancellations extends AbstractMigration
+{
+    /**
+     * Change Method.
+     *
+     * Write your reversible migrations using this method.
+     *
+     * More information on writing migrations is available here:
+     * https://book.cakephp.org/phinx/0/en/migrations.html#the-change-method
+     *
+     * Remember to call "create()" or "update()" and NOT "save()" when working
+     * with the Table class.
+     */
+    public function change(): void
+    {
+        // Storico delle lezioni cancellate dagli allievi.
+        // Nessuna pagina esistente legge questa tabella: non cambia il resto del sistema.
+        $this->table('bookingclass_cancellations', ['id' => 'idcancellation'])
+            ->addColumn('idbookingclass', 'integer')
+            ->addColumn('idserviceschedule', 'integer', ['null' => true])
+            ->addColumn('bookingstart', 'datetime')
+            ->addColumn('status', 'string', ['limit' => 30])
+            ->addColumn('idservice', 'integer')
+            ->addColumn('iduser', 'integer', ['signed' => false])
+            ->addColumn('idorder', 'integer', ['null' => true])
+            ->addColumn('prevbookingstart', 'datetime', ['null' => true])
+            ->addColumn('is_reprogrammed', 'char', ['limit' => 1, 'default' => 'N'])
+            ->addColumn('is_gift', 'char', ['limit' => 1, 'default' => 'N'])
+            ->addColumn('booking_created_at', 'timestamp', ['null' => true])
+            ->addColumn('cancelled_at', 'datetime')
+            ->addColumn('cancelled_by', 'integer', ['signed' => false])
+            ->addColumn('reprogrammed_incremented', 'char', ['limit' => 1, 'default' => 'N'])
+            ->addColumn('idschool', 'integer', ['signed' => false, 'default' => 1])
+            ->addIndex(['iduser'])
+            ->addIndex(['idorder'])
+            ->create();
+    }
+}
diff --git a/public/cancellazioni.php b/public/cancellazioni.php
new file mode 100644
index 0000000..4050c24
--- /dev/null
+++ b/public/cancellazioni.php
@@ -0,0 +1,304 @@
+<?php
+require_once('include/headscript.php');
+
+/**
+ * Storico delle lezioni cancellate dagli allievi (tabella bookingclass_cancellations).
+ * Sola consultazione: questa pagina non modifica nessun dato.
+ */
+$pdo = DBHandlerSelect::getInstance()->getConnection();
+
+function e($value): string
+{
+    return htmlspecialchars((string) $value, ENT_QUOTES, 'UTF-8');
+}
+
+// Preavviso leggibile: minuti, ore o giorni
+function formatPreavviso(?int $minutes): string
+{
+    if ($minutes === null) return '-';
+    if ($minutes < 60) return $minutes . ' min';
+    if ($minutes < 48 * 60) return floor($minutes / 60) . ' ore';
+    return floor($minutes / 1440) . ' giorni';
+}
+
+$sql = "
+SELECT
+    c.idcancellation,
+    c.iduser,
+    c.idorder,
+    c.is_gift,
+    c.reprogrammed_incremented,
+    c.cancelled_at,
+    COALESCE(ss.dateschedule, c.bookingstart) AS lesson_date,
+    TIMESTAMPDIFF(MINUTE, c.cancelled_at, COALESCE(ss.dateschedule, c.bookingstart)) AS preavviso_min,
+    u.first_name,
+    u.last_name,
+    u.email,
+    s.servicename,
+    o.reprogrammed,
+    o.maxreschedule
+FROM bookingclass_cancellations c
+LEFT JOIN auth_users u       ON u.id = c.iduser
+LEFT JOIN service s          ON s.idservice = c.idservice
+LEFT JOIN serviceschedule ss ON ss.idserviceschedule = c.idserviceschedule
+LEFT JOIN orderbook o        ON o.idorderbook = c.idorder
+ORDER BY c.cancelled_at DESC";
+
+$rows = $pdo->query($sql)->fetchAll();
+
+// Contatori ultimi 7 / 30 giorni
+$limit7  = strtotime('-7 days');
+$limit30 = strtotime('-30 days');
+$count7 = 0;
+$count30 = 0;
+foreach ($rows as $r) {
+    $t = strtotime($r['cancelled_at']);
+    if ($t >= $limit7) $count7++;
+    if ($t >= $limit30) $count30++;
+}
+?>
+<!doctype html>
+<html lang="it">
+
+<head>
+    <meta charset="utf-8" />
+    <title>YogiBook - Cancellazioni</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta content="YogiBook" name="description" />
+    <meta content="Advanced Creative Solutions" name="author" />
+    <link rel="shortcut icon" href="assets/images/favicon.ico">
+    <link href="assets/css/bootstrap.min.css" id="bootstrap-style" rel="stylesheet" type="text/css" />
+    <link href="assets/css/icons.min.css" rel="stylesheet" type="text/css" />
+    <link href="assets/css/app.min.css" id="app-style" rel="stylesheet" type="text/css" />
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css">
+    <link rel="stylesheet" href="https://cdn.datatables.net/1.13.6/css/jquery.dataTables.min.css">
+    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
+    <script src="https://cdn.datatables.net/1.13.6/js/jquery.dataTables.min.js"></script>
+
+    <style>
+        .admin-card {
+            border: none;
+            border-radius: 14px;
+            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
+        }
+
+        .admin-card .card-body {
+            padding: 26px 30px;
+        }
+
+        .section-title {
+            font-size: 15px;
+            font-weight: 700;
+            letter-spacing: 0.04em;
+            text-transform: uppercase;
+            color: #6b7280;
+            margin-bottom: 4px;
+        }
+
+        .section-lead {
+            color: #9ca3af;
+            font-size: 14px;
+            margin-bottom: 22px;
+        }
+
+        .counter {
+            border-radius: 8px;
+            padding: 8px 14px;
+            font-size: 14px;
+            font-weight: 600;
+            background: #fbe4c4;
+            color: #8a5a1a;
+        }
+
+        .counter.counter-30 {
+            background: #c4e1fb;
+            color: #1a4f7a;
+        }
+
+        #cancTable thead th {
+            font-size: 12px;
+            text-transform: uppercase;
+            letter-spacing: 0.03em;
+            color: #6b7280;
+        }
+
+        #cancTable td {
+            vertical-align: middle;
+        }
+
+        .user-email {
+            display: block;
+            font-size: 12px;
+            color: #9ca3af;
+        }
+
+        .badge-soft {
+            display: inline-block;
+            border-radius: 6px;
+            padding: 2px 8px;
+            font-size: 12px;
+            font-weight: 600;
+            white-space: nowrap;
+        }
+
+        .badge-late {
+            background: #fbc7c4;
+            color: #a12820;
+        }
+
+        .badge-ok {
+            background: #cdfbc4;
+            color: #1a7f2e;
+        }
+
+        .badge-gift {
+            background: #e2d3f5;
+            color: #4c2c92;
+        }
+
+        .badge-neutral {
+            background: #eef0f3;
+            color: #4b5563;
+        }
+    </style>
+</head>
+
+<body>
+    <div id="layout-wrapper">
+        <header id="page-topbar" class="isvertical-topbar">
+            <div class="navbar-header">
+                <div class="d-flex">
+                    <?php include('include/logoarea.php'); ?>
+                    <button type="button" class="btn btn-sm px-3 font-size-24 header-item waves-effect vertical-menu-btn">
+                        <i class="bx bx-menu align-middle"></i>
+                    </button>
+                    <div class="page-title-box align-self-center d-none d-md-block">
+                        <h4 class="page-title mb-0">Cancellazioni</h4>
+                    </div>
+                </div>
+                <div class="d-flex">
+                    <?php include('include/languageselection.php'); ?>
+                    <?php include('include/profiletopbar.php'); ?>
+                </div>
+            </div>
+        </header>
+        <?php include('include/sidebar.php'); ?>
+        <header class="ishorizontal-topbar">
+            <div class="navbar-header">
+                <div class="d-flex"></div>
+            </div>
+            <div class="topnav">
+                <div class="container-fluid">
+                    <nav class="navbar navbar-light navbar-expand-lg topnav-menu"></nav>
+                </div>
+            </div>
+        </header>
+
+        <div class="main-content">
+            <div class="page-content">
+                <div class="container-fluid">
+                    <div class="row">
+                        <div class="col-12">
+                            <div class="card admin-card">
+                                <div class="card-body">
+                                    <div class="section-title">Lezioni cancellate dagli allievi</div>
+                                    <p class="section-lead">Storico delle cancellazioni, dalla più recente. Usa la ricerca per filtrare per nome, lezione o data.</p>
+
+                                    <div class="d-flex align-items-center gap-3 flex-wrap mb-3">
+                                        <span class="counter"><i class="fas fa-calendar-week me-1"></i> Ultimi 7 giorni: <strong><?php echo $count7; ?></strong></span>
+                                        <span class="counter counter-30"><i class="fas fa-calendar-alt me-1"></i> Ultimi 30 giorni: <strong><?php echo $count30; ?></strong></span>
+                                        <span class="counter badge-neutral"><i class="fas fa-list me-1"></i> Totale: <strong><?php echo count($rows); ?></strong></span>
+                                    </div>
+
+                                    <div class="table-responsive">
+                                        <table id="cancTable" class="table table-striped">
+                                            <thead>
+                                                <tr>
+                                                    <th>Allievo</th>
+                                                    <th>Lezione</th>
+                                                    <th>Data lezione</th>
+                                                    <th>Cancellata il</th>
+                                                    <th>Preavviso</th>
+                                                    <th>Ordine</th>
+                                                    <th>Conta come riprog.</th>
+                                                </tr>
+                                            </thead>
+                                            <tbody>
+                                                <?php foreach ($rows as $r) :
+                                                    $nome = trim(($r['first_name'] ?? '') . ' ' . ($r['last_name'] ?? ''));
+                                                    if ($nome === '') $nome = 'Utente #' . (int) $r['iduser'];
+                                                    $lessonTs = $r['lesson_date'] ? strtotime($r['lesson_date']) : null;
+                                                    $cancTs   = strtotime($r['cancelled_at']);
+                                                    $preMin   = $r['preavviso_min'] !== null ? (int) $r['preavviso_min'] : null;
+                                                ?>
+                                                    <tr>
+                                                        <td>
+                                                            <?php echo e($nome); ?>
+                                                            <?php if (!empty($r['email'])) : ?>
+                                                                <span class="user-email"><?php echo e($r['email']); ?></span>
+                                                            <?php endif; ?>
+                                                        </td>
+                                                        <td><?php echo e($r['servicename'] ?? '-'); ?></td>
+                                                        <td data-order="<?php echo $lessonTs ? date('Y-m-d H:i', $lessonTs) : ''; ?>">
+                                                            <?php echo $lessonTs ? e(date('d/m/Y H:i', $lessonTs)) : '-'; ?>
+                                                        </td>
+                                                        <td data-order="<?php echo e(date('Y-m-d H:i:s', $cancTs)); ?>">
+                                                            <?php echo e(date('d/m/Y H:i', $cancTs)); ?>
+                                                        </td>
+                                                        <td data-order="<?php echo $preMin ?? 0; ?>">
+                                                            <?php if ($preMin !== null && $preMin < 24 * 60) : ?>
+                                                                <span class="badge-soft badge-late"><?php echo e(formatPreavviso($preMin)); ?></span>
+                                                            <?php else : ?>
+                                                                <span class="badge-soft badge-ok"><?php echo e(formatPreavviso($preMin)); ?></span>
+                                                            <?php endif; ?>
+                                                        </td>
+                                                        <td><?php echo $r['idorder'] !== null ? '#' . (int) $r['idorder'] : '-'; ?></td>
+                                                        <td>
+                                                            <?php if ($r['is_gift'] === 'Y' || $r['idorder'] === null) : ?>
+                                                                <span class="badge-soft badge-gift">Omaggio</span>
+                                                            <?php elseif ($r['reprogrammed_incremented'] === 'Y') : ?>
+                                                                <span class="badge-soft badge-neutral">
+                                                                    Sì<?php if ($r['reprogrammed'] !== null) : ?> (<?php echo (int) $r['reprogrammed']; ?>/<?php echo (int) $r['maxreschedule']; ?>)<?php endif; ?>
+                                                                </span>
+                                                            <?php else : ?>
+                                                                <span class="badge-soft badge-neutral">No</span>
+                                                            <?php endif; ?>
+                                                        </td>
+                                                    </tr>
+                                                <?php endforeach; ?>
+                                            </tbody>
+                                        </table>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                <?php include('include/footer.php'); ?>
+            </div>
+        </div>
+    </div>
+
+    <script src="assets/libs/bootstrap/js/bootstrap.bundle.min.js"></script>
+    <script src="assets/libs/metismenujs/metismenujs.min.js"></script>
+    <script src="assets/libs/simplebar/simplebar.min.js"></script>
+    <script src="assets/libs/eva-icons/eva.min.js"></script>
+    <script src="assets/js/app.js"></script>
+
+    <script>
+        $('#cancTable').DataTable({
+            paging: true,
+            pageLength: 50,
+            searching: true,
+            ordering: true,
+            order: [
+                [3, 'desc']
+            ],
+            language: {
+                url: "//cdn.datatables.net/plug-ins/1.13.6/i18n/it-IT.json"
+            }
+        });
+    </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/public/delete_lesson.php b/public/delete_lesson.php
index 49973f3..2361c5a 100644
--- a/public/delete_lesson.php
+++ b/public/delete_lesson.php
@@ -51,6 +51,9 @@ $userName  = trim(($u['first_name'] ?? '') . ' ' . ($u['last_name'] ?? ''));
 $stmt = $conn->prepare("
     SELECT
         bc.idbookingclass,
+        bc.idorder,
+        bc.status,
+        bc.bookingstart,
         s.servicename,
         ss.dateschedule
     FROM bookingclass bc
@@ -77,18 +80,116 @@ $classDateTxt  = $classDateRaw ? date("d-m-Y H:i", strtotime($classDateRaw)) : '
 $cancelDateTxt = date("d-m-Y H:i");
 
 /***********************
- * 3) DELETE (safe)
+ * 3) CONTROLLI (stesse regole di userpanel.php)
  ***********************/
-$stmt = $conn->prepare("DELETE FROM bookingclass WHERE idbookingclass = ? AND iduser = ?");
-$stmt->bind_param("ii", $id, $userId);
-
-if (!$stmt->execute()) {
-    $err = $stmt->error;
-    $stmt->close();
-    die("Errore durante la cancellazione del record: " . htmlspecialchars($err));
+// Solo prenotazioni confermate: pending e lista d'attesa hanno i loro percorsi
+if (($bk['status'] ?? '') !== 'booked') {
+    header("Location: userpanel.php?deleted=0&err=status");
+    exit();
 }
 
-$stmt->close();
+// Finestra oraria
+$classTime   = new DateTime($classDateRaw ?: $bk['bookingstart']);
+$currentTime = new DateTime();
+
+// Lezione già iniziata o passata: non si cancella
+if ($classTime <= $currentTime) {
+    header("Location: userpanel.php?deleted=0&err=window");
+    exit();
+}
+
+// Lezione di oggi: fino alle 17:00 entro le 00:01, dopo le 17:00 entro le 12:00
+if ($classTime->format('Y-m-d') === $currentTime->format('Y-m-d')) {
+    $classHour    = (int) $classTime->format('H');
+    $classMinute  = (int) $classTime->format('i');
+    $isBefore1700 = ($classHour < 17) || ($classHour === 17 && $classMinute === 0);
+    $deadline     = new DateTime($classTime->format($isBefore1700 ? 'Y-m-d 00:01:00' : 'Y-m-d 12:00:00'));
+    if ($currentTime > $deadline) {
+        header("Location: userpanel.php?deleted=0&err=window");
+        exit();
+    }
+}
+
+/***********************
+ * 3b) STORICO + RIPROGRAMMAZIONE + CANCELLAZIONE
+ *     Tutto in una transazione: o riesce tutto o niente.
+ ***********************/
+$idOrder     = $bk['idorder'] !== null ? (int) $bk['idorder'] : null;
+$ord         = null;
+$incremented = 'N';
+
+try {
+    $conn->begin_transaction();
+
+    // Limite riprogrammazioni (stessa regola del pulsante Riprogramma).
+    // FOR UPDATE: blocca la riga dell'ordine contro doppi click.
+    if ($idOrder !== null) {
+        $stmt = $conn->prepare("SELECT reprogrammed, maxreschedule FROM orderbook WHERE idorderbook = ? FOR UPDATE");
+        $stmt->bind_param("i", $idOrder);
+        $stmt->execute();
+        $ord = $stmt->get_result()->fetch_assoc();
+        $stmt->close();
+
+        if ($ord) {
+            if ((int) $ord['reprogrammed'] >= (int) $ord['maxreschedule']) {
+                throw new RuntimeException('limit');
+            }
+            $incremented = 'Y';
+        }
+    }
+
+    // Copia nello storico (prima di eliminare)
+    $stmt = $conn->prepare("
+        INSERT INTO bookingclass_cancellations
+            (idbookingclass, idserviceschedule, bookingstart, status, idservice, iduser, idorder,
+             prevbookingstart, is_reprogrammed, is_gift, booking_created_at,
+             cancelled_at, cancelled_by, reprogrammed_incremented)
+        SELECT idbookingclass, idserviceschedule, bookingstart, status, idservice, iduser, idorder,
+               prevbookingstart, is_reprogrammed, is_gift, created_at,
+               NOW(), ?, ?
+        FROM bookingclass
+        WHERE idbookingclass = ? AND iduser = ?
+    ");
+    $stmt->bind_param("isii", $userId, $incremented, $id, $userId);
+    $stmt->execute();
+    $copied = $stmt->affected_rows;
+    $stmt->close();
+    if ($copied !== 1) {
+        throw new RuntimeException('notfound');
+    }
+
+    // La cancellazione conta come una riprogrammazione
+    if ($incremented === 'Y') {
+        $stmt = $conn->prepare("UPDATE orderbook SET reprogrammed = reprogrammed + 1 WHERE idorderbook = ?");
+        $stmt->bind_param("i", $idOrder);
+        $stmt->execute();
+        $stmt->close();
+    }
+
+    // Eliminazione della prenotazione
+    $stmt = $conn->prepare("DELETE FROM bookingclass WHERE idbookingclass = ? AND iduser = ?");
+    $stmt->bind_param("ii", $id, $userId);
+    $stmt->execute();
+    $deleted = $stmt->affected_rows;
+    $stmt->close();
+    if ($deleted !== 1) {
+        throw new RuntimeException('notfound');
+    }
+
+    $conn->commit();
+} catch (Throwable $e) {
+    try {
+        $conn->rollback();
+    } catch (Throwable $ignored) {
+    }
+
+    $code = in_array($e->getMessage(), ['limit', 'notfound'], true) ? $e->getMessage() : 'db';
+    if ($code === 'db') {
+        error_log("delete_lesson #{$id} utente #{$userId}: " . $e->getMessage());
+    }
+    header("Location: userpanel.php?deleted=0&err=" . $code);
+    exit();
+}
 // Connessione $bkngstm gestita globalmente: non la chiudiamo qui
 
 /***********************
diff --git a/public/include/sidebar.php b/public/include/sidebar.php
index 3212ccf..fa7302f 100644
--- a/public/include/sidebar.php
+++ b/public/include/sidebar.php
@@ -178,6 +178,12 @@
                             <span class="menu-item">Utenti DB</span>
                         </a>
                     </li>
+                    <li>
+                        <a href="cancellazioni.php" class="">
+                            <i class="bx bx-slider-alt icon nav-icon"></i>
+                            <span class="menu-item">Cancellazioni</span>
+                        </a>
+                    </li>
                     <!-- Template (demo) -->
                     <li class="menu-title" data-key="t-applications">Template</li>
 
diff --git a/public/logs/mail_cancel.log b/public/logs/mail_cancel.log
index e1e68cf..6d6f3b8 100644
--- a/public/logs/mail_cancel.log
+++ b/public/logs/mail_cancel.log
@@ -1,2 +1,6 @@
 [2026-02-18 13:43:57] ERROR sending. booking_id=29 user_id=2 to=info@claudiosironi.com :: SMTP Error: Could not connect to SMTP host. Failed to connect to server
 [2026-02-18 13:46:10] ERROR sending. booking_id=30 user_id=2 to=info@claudiosironi.com :: SMTP Error: Could not connect to SMTP host. Failed to connect to server
+[2026-10-14 08:44:28] SMTP in uso host=mail.yogasoul.it porta=465 enc=ssl user=info@yogasoul.it
+[2026-10-14 08:44:30] OK inviata. booking_id=70 user_id=2 to=info@claudiosironi.com lezione='Aerial Yoga - base' prevista='21-10-2026 18:30' cancellata='14-10-2026 08:44'
+[2026-10-14 08:46:52] SMTP in uso host=mail.yogasoul.it porta=465 enc=ssl user=info@yogasoul.it
+[2026-10-14 08:46:54] OK inviata. booking_id=60 user_id=2 to=info@claudiosironi.com lezione='Aerial Yoga - base' prevista='29-10-2026 20:15' cancellata='14-10-2026 08:46'
diff --git a/public/userpanel.php b/public/userpanel.php
index b62e1c7..5299a68 100644
--- a/public/userpanel.php
+++ b/public/userpanel.php
@@ -504,6 +504,7 @@ $italianMonths = [
                 html: `
             <strong>Confermi di voler cancellare questa lezione?</strong><br><br>
             <strong>RICORDA:</strong> dovrai riprogrammarla entro la scadenza del tuo abbonamento per non perderla!<br><br>
+            La cancellazione conta come <strong>una delle riprogrammazioni</strong> disponibili per il tuo pacchetto.<br><br>
             <span style="font-size:20px;color:#d33;font-weight:bold;">
                Scadenza: ${expirydate}
             </span>
@@ -651,7 +652,22 @@ $italianMonths = [
                         <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                     </div>
                 <?php } ?>
-                <?php if (isset($_GET['deleted'])) { ?>
+                <?php if (($_GET['deleted'] ?? '') === '0') {
+                    $cancelErrors = [
+                        'window'   => 'Non è più possibile cancellare questa lezione: il tempo per la cancellazione è scaduto.',
+                        'limit'    => 'Hai raggiunto il numero massimo di riprogrammazioni per questo pacchetto.',
+                        'status'   => 'Questa prenotazione non può essere cancellata da qui.',
+                        'notfound' => 'Prenotazione non trovata.',
+                    ];
+                    $cancelMsg = $cancelErrors[$_GET['err'] ?? ''] ?? 'Si è verificato un errore: la lezione non è stata cancellata. Riprova o contattaci.';
+                ?>
+                    <div class="alert alert-danger alert-dismissible fade show" role="alert">
+                        <i class="fas fa-ban me-2"></i>
+                        <?php echo e($cancelMsg); ?>
+                        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                    </div>
+                <?php } ?>
+                <?php if (($_GET['deleted'] ?? '') === '1') { ?>
                     <div class="alert alert-success alert-dismissible fade show" role="alert">
                         <i class="mdi mdi-check-all me-2"></i>
                         Lezione cancellata con successo! Grazie per aver liberato il posto!