added assorbimento corso

db/migrations/20260724061326_create_training_topic_coverage.php

@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class CreateTrainingTopicCoverage extends AbstractMigration
+{
+    public function change(): void
+    {
+        $table = $this->table('training_topic_coverage', [
+            'id'          => 'id',
+            'signed'      => false,
+            'engine'      => 'InnoDB',
+            'encoding'    => 'utf8mb4',
+            'collation'   => 'utf8mb4_unicode_ci',
+        ]);
+
+        $table
+            ->addColumn('topic_id', 'integer', [
+                'signed'  => false,
+                'null'    => false,
+                'comment' => 'Corso madre (es. RSPP)',
+            ])
+            ->addColumn('covered_topic_id', 'integer', [
+                'signed'  => false,
+                'null'    => false,
+                'comment' => 'Corso assorbito (es. Antincendio)',
+            ])
+            ->addColumn('inherit_expiry', 'enum', [
+                'values'  => ['own', 'source', 'none'],
+                'default' => 'own',
+                'null'    => false,
+                'comment' => 'own = ricalcola con frequenza propria del corso coperto',
+            ])
+            ->addColumn('notes', 'string', [
+                'limit' => 255,
+                'null'  => true,
+            ])
+            ->addColumn('created_at', 'timestamp', [
+                'default' => 'CURRENT_TIMESTAMP',
+                'null'    => true,
+            ])
+            ->addIndex(['topic_id', 'covered_topic_id'], [
+                'unique' => true,
+                'name'   => 'uq_topic_coverage',
+            ])
+            ->addIndex(['covered_topic_id'], ['name' => 'idx_covered_topic'])
+            ->addForeignKey('topic_id', 'training_topics', 'id', [
+                'delete' => 'CASCADE',
+                'update' => 'CASCADE',
+                'constraint' => 'fk_cov_topic',
+            ])
+            ->addForeignKey('covered_topic_id', 'training_topics', 'id', [
+                'delete' => 'CASCADE',
+                'update' => 'CASCADE',
+                'constraint' => 'fk_cov_covered',
+            ])
+            ->create();
+    }
+}

public/userarea/ajax/training_topics/save.php

@@ -1,6 +1,7 @@
 <?php
 require_once(__DIR__ . '/../auth_check.php');
 require_once(__DIR__ . '/../../class/db-functions.php');
+require_once(__DIR__ . '/../../include/training_coverage.php');
 
 header('Content-Type: application/json');
 
@@ -24,16 +25,58 @@ $is_mandatory = isset($_POST['is_mandatory']) && (int)$_POST['is_mandatory'] ===
 $freq = ($freqRaw === '' || $freqRaw === null) ? null : max(0, (int)$freqRaw);
 $rem  = ($remRaw  === '' || $remRaw  === null) ? 30   : max(0, (int)$remRaw);
 
+/* Coperture: corsi assorbiti da questo */
+$coveredIds = isset($_POST['covered_ids']) ? (array)$_POST['covered_ids'] : [];
+$coveredIds = array_values(array_unique(array_filter(array_map('intval', $coveredIds), function ($v) {
+    return $v > 0;
+})));
+
 if ($name === '') {
     echo json_encode(['success' => false, 'message' => 'Il nome del corso è obbligatorio.']);
     exit;
 }
 
+/**
+ * Riscrive le coperture del corso: cancella le vecchie e inserisce le nuove,
+ * scartando auto-copertura e relazioni che creerebbero un ciclo.
+ */
+function saveCoverage(PDO $pdo, int $topicId, array $coveredIds): array
+{
+    $skipped = [];
+
+    $pdo->prepare("DELETE FROM training_topic_coverage WHERE topic_id = :tid")
+        ->execute(['tid' => $topicId]);
+
+    if (!$coveredIds) return $skipped;
+
+    $ins = $pdo->prepare("
+        INSERT IGNORE INTO training_topic_coverage
+            (topic_id, covered_topic_id, inherit_expiry, created_at)
+        VALUES (:tid, :cid, 'own', NOW())
+    ");
+
+    foreach ($coveredIds as $cid) {
+        if ($cid === $topicId) {
+            continue;
+        }
+        if (tc_wouldCreateCycle($pdo, $topicId, $cid)) {
+            $skipped[] = $cid;
+            continue;
+        }
+        $ins->execute(['tid' => $topicId, 'cid' => $cid]);
+    }
+
+    return $skipped;
+}
+
 try {
+    $pdo->beginTransaction();
+
     if ($id > 0) {
         $check = $pdo->prepare("SELECT COUNT(*) FROM training_topics WHERE name = :name AND id <> :id");
         $check->execute(['name' => $name, 'id' => $id]);
         if ((int)$check->fetchColumn() > 0) {
+            $pdo->rollBack();
             echo json_encode(['success' => false, 'message' => 'Esiste già un altro corso con questo nome.']);
             exit;
         }
@@ -61,13 +104,27 @@ try {
             'id'           => $id,
         ]);
 
-        echo json_encode(['success' => true, 'id' => $id]);
+        $skipped = saveCoverage($pdo, $id, $coveredIds);
+        $pdo->commit();
+
+        $msg = $skipped
+            ? 'Corso aggiornato. Alcune coperture sono state ignorate perché avrebbero creato un riferimento circolare.'
+            : null;
+
+        echo json_encode(array_filter([
+            'success' => true,
+            'id'      => $id,
+            'message' => $msg,
+        ], function ($v) {
+            return $v !== null;
+        }));
         exit;
     }
 
     $check = $pdo->prepare("SELECT COUNT(*) FROM training_topics WHERE name = :name");
     $check->execute(['name' => $name]);
     if ((int)$check->fetchColumn() > 0) {
+        $pdo->rollBack();
         echo json_encode(['success' => false, 'message' => 'Esiste già un corso con questo nome.']);
         exit;
     }
@@ -88,7 +145,14 @@ try {
         'is_mandatory' => $is_mandatory,
     ]);
 
-    echo json_encode(['success' => true, 'id' => (int)$pdo->lastInsertId()]);
+    $newId = (int)$pdo->lastInsertId();
+    saveCoverage($pdo, $newId, $coveredIds);
+
+    $pdo->commit();
+    echo json_encode(['success' => true, 'id' => $newId]);
 } catch (Exception $e) {
+    if ($pdo->inTransaction()) {
+        $pdo->rollBack();
+    }
     echo json_encode(['success' => false, 'message' => $e->getMessage()]);
 }

public/userarea/employee-profile.php

@@ -162,6 +162,8 @@ if ($employee) {
 $trainings = [];
 $trainingTopicsAll = [];
 $missingMandatoryTopics = [];
+$coveredTrainings = [];
+$coveredKeys = [];
 if ($employee) {
     $stmt = $pdo->prepare("
         SELECT et.*,
@@ -207,6 +209,34 @@ if ($employee) {
     ");
     $missingStmt->execute(['eid' => $employeeId]);
     $missingMandatoryTopics = $missingStmt->fetchAll(PDO::FETCH_ASSOC);
+
+    /* ==========================================
+       COPERTURE — corsi assorbiti da altri corsi
+       ========================================== */
+    require_once __DIR__ . '/include/training_coverage.php';
+
+    $allTopicsById = [];
+    foreach ($pdo->query("SELECT id, name, default_frequency_months, default_reminder_days, is_active FROM training_topics")->fetchAll(PDO::FETCH_ASSOC) as $tt) {
+        if ((int)$tt['is_active'] !== 1) continue;
+        $allTopicsById[(int)$tt['id']] = $tt;
+    }
+
+    // Solo i record più recenti per topic generano copertura
+    $latestOnly = array_values(array_filter($trainings, function ($t) {
+        return !empty($t['_is_latest']);
+    }));
+    foreach ($latestOnly as &$lo) {
+        $lo['employee_id'] = $employeeId;
+    }
+    unset($lo);
+
+    $coveredTrainings = tc_buildVirtualRows($pdo, $latestOnly, $allTopicsById);
+    $coveredKeys      = tc_coveredKeys($coveredTrainings);
+
+    // I corsi obbligatori coperti non sono più "non presenti"
+    $missingMandatoryTopics = array_values(array_filter($missingMandatoryTopics, function ($mt) use ($coveredKeys, $employeeId) {
+        return !isset($coveredKeys[$employeeId . ':' . (int)$mt['id']]);
+    }));
 }
 
 /* ==========================================
@@ -590,6 +620,29 @@ function fmtFileSize(?int $bytes): string
             border: 1px solid #cbd5e1;
         }
 
+        .pill-covered {
+            background: #ede9fe;
+            color: #5b21b6;
+            border: 1px solid #ddd6fe;
+            font-size: .78rem;
+            padding: 3px 9px;
+            white-space: nowrap;
+        }
+
+        tr.row-covered {
+            background-color: #faf5ff !important;
+        }
+
+        tr.row-covered td {
+            background-color: transparent !important;
+        }
+
+        .cov-note {
+            font-size: .8rem;
+            color: #7c3aed;
+            margin-top: 2px;
+        }
+
         .pill-status-success {
             background: #d1fae5;
             color: #065f46;
@@ -1641,12 +1694,57 @@ function fmtFileSize(?int $bytes): string
                                                             </td>
                                                         </tr>
                                                     <?php endforeach; ?>
+
+                                                    <?php foreach ($coveredTrainings as $cv): ?>
+                                                        <?php
+                                                        $s = trainingStatus(
+                                                            $cv['next_due_date'] ?: null,
+                                                            null,
+                                                            $cv['topic_default_rem'] !== null ? (int)$cv['topic_default_rem'] : null
+                                                        );
+                                                        ?>
+                                                        <tr class="row-covered">
+                                                            <td class="fw-semibold">
+                                                                <?= htmlspecialchars($cv['topic_name']) ?>
+                                                                <div class="cov-note">⛓️ Assorbito da <?= htmlspecialchars($cv['_covered_by_name']) ?></div>
+                                                            </td>
+                                                            <td><span class="pill pill-covered">Coperto</span></td>
+                                                            <td><?= fmtDate($cv['completed_date']) ?></td>
+                                                            <td><?= fmtDate($cv['next_due_date']) ?></td>
+                                                            <td><span class="pill pill-status-<?= $s['class'] ?>"><?= $s['label'] ?></span></td>
+                                                            <td>—</td>
+                                                            <td class="text-end"><span class="text-muted small">—</span></td>
+                                                        </tr>
+                                                    <?php endforeach; ?>
                                                 </tbody>
                                             </table>
                                         </div>
 
                                         <!-- MOBILE CARDS -->
                                         <div class="d-block d-md-none">
+                                            <?php foreach ($coveredTrainings as $cv): ?>
+                                                <?php
+                                                $s = trainingStatus(
+                                                    $cv['next_due_date'] ?: null,
+                                                    null,
+                                                    $cv['topic_default_rem'] !== null ? (int)$cv['topic_default_rem'] : null
+                                                );
+                                                ?>
+                                                <div class="doc-card" style="background:#faf5ff;">
+                                                    <div class="d-flex justify-content-between align-items-start gap-2 mb-2">
+                                                        <span class="doc-card-title">📖 <?= htmlspecialchars($cv['topic_name']) ?></span>
+                                                        <span class="pill pill-status-<?= $s['class'] ?>"><?= $s['label'] ?></span>
+                                                    </div>
+                                                    <div class="mb-2"><span class="pill pill-covered">⛓️ Assorbito da <?= htmlspecialchars($cv['_covered_by_name']) ?></span></div>
+                                                    <div class="doc-card-meta">
+                                                        <span><b>Completato:</b> <?= fmtDate($cv['completed_date']) ?></span>
+                                                        <?php if ($cv['next_due_date']): ?>
+                                                            <span><b>Prossimo:</b> <?= fmtDate($cv['next_due_date']) ?></span>
+                                                        <?php endif; ?>
+                                                    </div>
+                                                </div>
+                                            <?php endforeach; ?>
+
                                             <?php foreach ($trainings as $t): ?>
                                                 <?php
                                                 $tid = (int)$t['id'];
@@ -2305,6 +2403,12 @@ function fmtFileSize(?int $bytes): string
                     order: [
                         [2, 'desc']
                     ],
+                    createdRow: function(row, data, index) {
+                        // preserva l'evidenziazione delle righe coperte dopo il redraw
+                        if ($(row).find('.pill-covered').length) {
+                            $(row).addClass('row-covered');
+                        }
+                    },
                     language: {
                         search: "Cerca:",
                         lengthMenu: "Mostra _MENU_ righe",

public/userarea/include/training_coverage.php

@@ -0,0 +1,199 @@
+<?php
+
+/**
+ * Helper per la gestione delle coperture tra corsi di formazione.
+ * Un corso "madre" (topic_id) assorbe uno o più corsi "coperti" (covered_topic_id).
+ */
+
+/**
+ * Mappa completa delle coperture: [topic_id => [covered_topic_id => inherit_expiry]]
+ */
+function tc_getCoverageMap(PDO $pdo): array
+{
+    static $cache = null;
+    if ($cache !== null) return $cache;
+
+    $rows = $pdo->query("
+        SELECT topic_id, covered_topic_id, inherit_expiry
+        FROM training_topic_coverage
+    ")->fetchAll(PDO::FETCH_ASSOC);
+
+    $map = [];
+    foreach ($rows as $r) {
+        $map[(int)$r['topic_id']][(int)$r['covered_topic_id']] = $r['inherit_expiry'];
+    }
+    return $cache = $map;
+}
+
+/**
+ * Mappa inversa: [covered_topic_id => [topic_id, ...]]
+ */
+function tc_getReverseCoverageMap(PDO $pdo): array
+{
+    static $cache = null;
+    if ($cache !== null) return $cache;
+
+    $map = [];
+    foreach (tc_getCoverageMap($pdo) as $topicId => $covered) {
+        foreach (array_keys($covered) as $coveredId) {
+            $map[$coveredId][] = $topicId;
+        }
+    }
+    return $cache = $map;
+}
+
+/**
+ * Elenco dei corsi coperti da un dato corso, con i nomi.
+ * @return array[] [['id'=>int,'name'=>string,'inherit_expiry'=>string], ...]
+ */
+function tc_getCoveredTopics(PDO $pdo, int $topicId): array
+{
+    $st = $pdo->prepare("
+        SELECT tt.id, tt.name, c.inherit_expiry
+        FROM training_topic_coverage c
+        JOIN training_topics tt ON tt.id = c.covered_topic_id
+        WHERE c.topic_id = :tid
+        ORDER BY tt.sort_order, tt.name
+    ");
+    $st->execute(['tid' => $topicId]);
+    return $st->fetchAll(PDO::FETCH_ASSOC);
+}
+
+/**
+ * Calcola la data di scadenza per un corso coperto.
+ *
+ * @param string      $completedDate  data completamento del corso madre (Y-m-d)
+ * @param string      $inherit        'own' | 'source' | 'none'
+ * @param int|null    $coveredFreq    frequenza (mesi) del corso coperto
+ * @param string|null $sourceNextDue  next_due_date del corso madre
+ */
+function tc_computeDueDate(
+    string $completedDate,
+    string $inherit,
+    ?int $coveredFreq,
+    ?string $sourceNextDue
+): ?string {
+    if ($inherit === 'none')   return null;
+    if ($inherit === 'source') return $sourceNextDue ?: null;
+
+    // 'own'
+    if ($coveredFreq === null || $coveredFreq <= 0) return null;
+    $d = DateTime::createFromFormat('Y-m-d', $completedDate);
+    if (!$d) return null;
+    $d->modify('+' . $coveredFreq . ' months');
+    return $d->format('Y-m-d');
+}
+
+/**
+ * Dato l'elenco dei training reali di uno o più dipendenti, produce le
+ * righe "virtuali" derivate dalle coperture.
+ *
+ * @param array $realRows   righe da employee_trainings (servono almeno:
+ *                          employee_id, training_topic_id, completed_date,
+ *                          next_due_date, e i dati anagrafici del dipendente)
+ * @param array $topicsById [id => ['name'=>..,'default_frequency_months'=>..,'default_reminder_days'=>..]]
+ * @return array righe virtuali pronte per il rendering
+ */
+function tc_buildVirtualRows(PDO $pdo, array $realRows, array $topicsById): array
+{
+    $coverage = tc_getCoverageMap($pdo);
+    if (!$coverage) return [];
+
+    // Indice dei record diretti già esistenti: "empId:topicId"
+    $direct = [];
+    foreach ($realRows as $r) {
+        $direct[$r['employee_id'] . ':' . $r['training_topic_id']] = true;
+    }
+
+    $virtual = [];
+    foreach ($realRows as $r) {
+        $srcTopicId = (int)$r['training_topic_id'];
+        if (empty($coverage[$srcTopicId])) continue;
+
+        foreach ($coverage[$srcTopicId] as $coveredId => $inherit) {
+            $key = $r['employee_id'] . ':' . $coveredId;
+
+            // Precedenza al record diretto
+            if (isset($direct[$key])) continue;
+            // Il corso coperto deve esistere ed essere attivo
+            if (!isset($topicsById[$coveredId])) continue;
+            // Evita doppioni se più corsi madre coprono lo stesso corso:
+            // tiene quello con completed_date più recente
+            if (isset($virtual[$key]) && $virtual[$key]['completed_date'] >= $r['completed_date']) continue;
+
+            $covFreq = $topicsById[$coveredId]['default_frequency_months'];
+            $covFreq = ($covFreq === null || $covFreq === '') ? null : (int)$covFreq;
+
+            $due = tc_computeDueDate(
+                (string)$r['completed_date'],
+                (string)$inherit,
+                $covFreq,
+                $r['next_due_date'] ?: null
+            );
+
+            $virtual[$key] = [
+                'id'                 => null,
+                '_covered'           => true,
+                '_covered_by_id'     => $srcTopicId,
+                '_covered_by_name'   => $topicsById[$srcTopicId]['name'] ?? ('#' . $srcTopicId),
+                'employee_id'        => $r['employee_id'],
+                'first_name'         => $r['first_name']    ?? '',
+                'last_name'          => $r['last_name']     ?? '',
+                'employee_code'      => $r['employee_code']  ?? null,
+                'department_name'    => $r['department_name'] ?? null,
+                'department_color'   => $r['department_color'] ?? null,
+                'training_topic_id'  => $coveredId,
+                'topic_name'         => $topicsById[$coveredId]['name'],
+                'topic_default_rem'  => $topicsById[$coveredId]['default_reminder_days'] ?? null,
+                'training_type'      => $r['training_type'] ?? 'initial',
+                'completed_date'     => $r['completed_date'],
+                'next_due_date'      => $due,
+                'reminder_days'      => null,
+                'attachments_count'  => 0,
+            ];
+        }
+    }
+
+    return array_values($virtual);
+}
+
+/**
+ * Insieme di chiavi "empId:topicId" coperte, usato per escludere
+ * i corsi obbligatori dai "Non presenti".
+ */
+function tc_coveredKeys(array $virtualRows): array
+{
+    $keys = [];
+    foreach ($virtualRows as $v) {
+        $keys[$v['employee_id'] . ':' . $v['training_topic_id']] = true;
+    }
+    return $keys;
+}
+
+/**
+ * Verifica se aggiungere topicId -> coveredId creerebbe un ciclo.
+ */
+function tc_wouldCreateCycle(PDO $pdo, int $topicId, int $coveredId): bool
+{
+    if ($topicId === $coveredId) return true;
+
+    $map = [];
+    $rows = $pdo->query("SELECT topic_id, covered_topic_id FROM training_topic_coverage")
+        ->fetchAll(PDO::FETCH_ASSOC);
+    foreach ($rows as $r) {
+        $map[(int)$r['topic_id']][] = (int)$r['covered_topic_id'];
+    }
+    $map[$topicId][] = $coveredId;
+
+    // DFS da coveredId: se raggiungo topicId c'è ciclo
+    $stack   = [$coveredId];
+    $visited = [];
+    while ($stack) {
+        $cur = array_pop($stack);
+        if ($cur === $topicId) return true;
+        if (isset($visited[$cur])) continue;
+        $visited[$cur] = true;
+        foreach ($map[$cur] ?? [] as $next) $stack[] = $next;
+    }
+    return false;
+}

public/userarea/training_topics.php

@@ -7,6 +7,8 @@ $pdo = $db->getConnection();
 /* ==========================================
    PAGE DATA
    ========================================== */
+require_once __DIR__ . '/include/training_coverage.php';
+
 $sql = "
     SELECT tt.*,
            (SELECT COUNT(*) FROM employee_trainings et WHERE et.training_topic_id = tt.id) AS trainings_count
@@ -14,6 +16,30 @@ $sql = "
     ORDER BY tt.sort_order ASC, tt.name ASC
 ";
 $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
+
+/* Coperture: [topic_id => [ ['id'=>..,'name'=>..], ... ]] */
+$coverageRows = $pdo->query("
+    SELECT c.topic_id, c.covered_topic_id, tt.name AS covered_name
+    FROM training_topic_coverage c
+    JOIN training_topics tt ON tt.id = c.covered_topic_id
+    ORDER BY tt.sort_order, tt.name
+")->fetchAll(PDO::FETCH_ASSOC);
+
+$coverageByTopic = [];
+foreach ($coverageRows as $cr) {
+    $coverageByTopic[(int)$cr['topic_id']][] = [
+        'id'   => (int)$cr['covered_topic_id'],
+        'name' => $cr['covered_name'],
+    ];
+}
+
+/* Mappa inversa: chi copre questo corso */
+$coveredByTopic = [];
+foreach ($coverageRows as $cr) {
+    $coveredByTopic[(int)$cr['covered_topic_id']][] = (int)$cr['topic_id'];
+}
+$topicNames = [];
+foreach ($topics as $t) $topicNames[(int)$t['id']] = $t['name'];
 ?>
 <!doctype html>
 <html lang="it">
@@ -274,6 +300,42 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
             color: #94a3b8;
             padding: 24px 0;
         }
+
+        .cov-chip {
+            display: inline-block;
+            padding: 2px 9px;
+            border-radius: 999px;
+            background: #ede9fe;
+            color: #5b21b6;
+            border: 1px solid #ddd6fe;
+            font-size: 0.78rem;
+            font-weight: 600;
+            margin: 2px 3px 2px 0;
+            white-space: nowrap;
+        }
+
+        .cov-chip-parent {
+            background: #fef3c7;
+            color: #92400e;
+            border-color: #fde68a;
+        }
+
+        .cov-cell {
+            max-width: 240px;
+            text-align: left;
+            white-space: normal;
+        }
+
+        .cov-help {
+            font-size: .85rem;
+            color: #64748b;
+            margin-top: 4px;
+        }
+
+        #addCovered,
+        #editCovered {
+            min-height: 140px;
+        }
     </style>
 </head>
 
@@ -328,6 +390,7 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                         <th>Ordine</th>
                                         <th>Stato</th>
                                         <th>Formazioni</th>
+                                        <th>Copre</th>
                                         <th>Azioni</th>
                                     </tr>
                                 </thead>
@@ -368,6 +431,25 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                             <td><?= $sortOrder ?></td>
                                             <td><span class="badge-status <?= $statusClass ?>"><?= $statusLabel ?></span></td>
                                             <td><?= $cnt ?></td>
+                                            <td class="cov-cell">
+                                                <?php $covList = $coverageByTopic[$id] ?? []; ?>
+                                                <?php if ($covList): ?>
+                                                    <?php foreach ($covList as $cv): ?>
+                                                        <span class="cov-chip">⛓️ <?= htmlspecialchars($cv['name']) ?></span>
+                                                    <?php endforeach; ?>
+                                                <?php else: ?>
+                                                    <span class="text-muted">—</span>
+                                                <?php endif; ?>
+                                                <?php if (!empty($coveredByTopic[$id])): ?>
+                                                    <div class="mt-1">
+                                                        <?php foreach ($coveredByTopic[$id] as $parentId): ?>
+                                                            <span class="cov-chip cov-chip-parent" title="Questo corso è assorbito da">
+                                                                ↑ <?= htmlspecialchars($topicNames[$parentId] ?? ('#' . $parentId)) ?>
+                                                            </span>
+                                                        <?php endforeach; ?>
+                                                    </div>
+                                                <?php endif; ?>
+                                            </td>
                                             <td>
                                                 <button class="btn btn-sm btn-outline-secondary edit-topic"
                                                     data-id="<?= $id ?>"
@@ -377,7 +459,8 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                                     data-rem="<?= $rem ?>"
                                                     data-sort_order="<?= $sortOrder ?>"
                                                     data-is_active="<?= $isActive ?>"
-                                                    data-is_mandatory="<?= $isMandatory ?>">
+                                                    data-is_mandatory="<?= $isMandatory ?>"
+                                                    data-covered="<?= htmlspecialchars(json_encode(array_column($coverageByTopic[$id] ?? [], 'id')), ENT_QUOTES) ?>">
                                                     ✏️ Modifica
                                                 </button>
                                                 <button class="btn btn-sm btn-outline-danger delete-topic"
@@ -430,6 +513,17 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                         <span><b>Formazioni:</b> <?= $cnt ?></span>
                                         <span><b>Ordine:</b> <?= $sortOrder ?></span>
                                     </div>
+                                    <?php $covList = $coverageByTopic[$id] ?? []; ?>
+                                    <?php if ($covList || !empty($coveredByTopic[$id])): ?>
+                                        <div class="mb-2">
+                                            <?php foreach ($covList as $cv): ?>
+                                                <span class="cov-chip">⛓️ <?= htmlspecialchars($cv['name']) ?></span>
+                                            <?php endforeach; ?>
+                                            <?php foreach (($coveredByTopic[$id] ?? []) as $parentId): ?>
+                                                <span class="cov-chip cov-chip-parent">↑ <?= htmlspecialchars($topicNames[$parentId] ?? ('#' . $parentId)) ?></span>
+                                            <?php endforeach; ?>
+                                        </div>
+                                    <?php endif; ?>
                                     <div class="tt-card-actions">
                                         <button class="btn btn-sm btn-outline-secondary edit-topic"
                                             data-id="<?= $id ?>"
@@ -439,7 +533,8 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                             data-rem="<?= $rem ?>"
                                             data-sort_order="<?= $sortOrder ?>"
                                             data-is_active="<?= $isActive ?>"
-                                            data-is_mandatory="<?= $isMandatory ?>">
+                                            data-is_mandatory="<?= $isMandatory ?>"
+                                            data-covered="<?= htmlspecialchars(json_encode(array_column($coverageByTopic[$id] ?? [], 'id')), ENT_QUOTES) ?>">
                                             ✏️ Modifica
                                         </button>
                                         <button class="btn btn-sm btn-outline-danger delete-topic"
@@ -520,6 +615,19 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                 Se attivo, i dipendenti senza registrazione di questo corso compaiono come "Non presente" nello storico.
                             </div>
                         </div>
+                        <div class="mb-3">
+                            <label class="form-label fw-semibold">⛓️ Corsi assorbiti da questo</label>
+                            <select class="form-select" id="addCovered" multiple size="6">
+                                <?php foreach ($topics as $t): ?>
+                                    <option value="<?= (int)$t['id'] ?>"><?= htmlspecialchars($t['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                            <div class="cov-help">
+                                Chi completa questo corso risulta automaticamente in regola anche per quelli selezionati.
+                                La scadenza del corso assorbito viene ricalcolata con la sua frequenza propria.
+                            </div>
+                        </div>
+
                         <div class="text-center">
                             <button type="submit" class="btn btn-add">💾 Salva</button>
                         </div>
@@ -590,6 +698,18 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                                 Se attivo, i dipendenti senza registrazione di questo corso compaiono come "Non presente" nello storico.
                             </div>
                         </div>
+                        <div class="mb-3">
+                            <label class="form-label fw-semibold">⛓️ Corsi assorbiti da questo</label>
+                            <select class="form-select" id="editCovered" multiple size="6">
+                                <?php foreach ($topics as $t): ?>
+                                    <option value="<?= (int)$t['id'] ?>"><?= htmlspecialchars($t['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                            <div class="cov-help">
+                                Chi completa questo corso risulta automaticamente in regola anche per quelli selezionati.
+                            </div>
+                        </div>
+
                         <div class="text-center">
                             <button type="submit" class="btn btn-add">💾 Salva Modifiche</button>
                         </div>
@@ -604,6 +724,10 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
     <script>
         $(document).ready(function() {
             $('#tabellaTopics').DataTable({
+                columnDefs: [{
+                    targets: [8, 9],
+                    orderable: false
+                }],
                 order: [
                     [5, 'asc'],
                     [1, 'asc']
@@ -660,6 +784,9 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                 p.append('sort_order', $("#addSortOrder").val());
                 p.append('is_active', $("#addIsActive").val());
                 p.append('is_mandatory', $("#addIsMandatory").is(':checked') ? '1' : '0');
+                ($("#addCovered").val() || []).forEach(function(v) {
+                    p.append('covered_ids[]', v);
+                });
                 ajaxPost("ajax/training_topics/save.php", p, "Salvato!", "Impossibile salvare il corso.");
             });
 
@@ -678,6 +805,24 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                 $("#editSortOrder").val(b.data("sort_order"));
                 $("#editIsActive").val(String(b.data("is_active")));
                 $("#editIsMandatory").prop('checked', String(b.data("is_mandatory")) === '1');
+
+                // Coperture: nascondi il corso stesso e preseleziona le esistenti
+                var selfId = String(b.data("id"));
+                var covered = b.data("covered") || [];
+                if (typeof covered === 'string') {
+                    try {
+                        covered = JSON.parse(covered);
+                    } catch (e) {
+                        covered = [];
+                    }
+                }
+                covered = covered.map(String);
+                $("#editCovered option").each(function() {
+                    $(this).prop('hidden', this.value === selfId)
+                        .prop('disabled', this.value === selfId);
+                });
+                $("#editCovered").val(covered);
+
                 $("#editTopicModal").modal("show");
             });
 
@@ -692,6 +837,9 @@ $topics = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
                 p.append('sort_order', $("#editSortOrder").val());
                 p.append('is_active', $("#editIsActive").val());
                 p.append('is_mandatory', $("#editIsMandatory").is(':checked') ? '1' : '0');
+                ($("#editCovered").val() || []).forEach(function(v) {
+                    p.append('covered_ids[]', v);
+                });
                 ajaxPost("ajax/training_topics/save.php", p, "Aggiornato!", "Impossibile aggiornare il corso.");
             });
 

public/userarea/trainings.php

@@ -74,6 +74,15 @@ $stmt = $pdo->prepare("
 $stmt->execute($params);
 $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
 
+require_once __DIR__ . '/include/training_coverage.php';
+
+/* Mappa di tutti i corsi (serve all'helper coperture) */
+$allTopicsById = [];
+foreach ($pdo->query("SELECT id, name, default_frequency_months, default_reminder_days, is_active FROM training_topics")->fetchAll(PDO::FETCH_ASSOC) as $t) {
+    if ((int)$t['is_active'] !== 1) continue;
+    $allTopicsById[(int)$t['id']] = $t;
+}
+
 /* Filter by computed status */
 function trainingStatus(?string $nextDue, ?int $reminderDays, ?int $topicDefaultRem): array
 {
@@ -90,6 +99,60 @@ function trainingStatus(?string $nextDue, ?int $reminderDays, ?int $topicDefault
     return                                  ['code' => 'compliant',  'label' => 'Conforme',         'class' => 'success', 'days' => $daysLeft];
 }
 
+/* ==========================================
+   COPERTURE — righe virtuali derivate.
+   Vanno calcolate sui record NON filtrati per topic,
+   altrimenti filtrando su "Antincendio" perderemmo l'RSPP che lo copre.
+   ========================================== */
+$coverageBase = $rows;
+if ($fTopicId > 0) {
+    $baseWhere  = ["NOT EXISTS (
+        SELECT 1 FROM employee_trainings et2
+        WHERE et2.employee_id = et.employee_id
+          AND et2.training_topic_id = et.training_topic_id
+          AND (et2.completed_date > et.completed_date
+               OR (et2.completed_date = et.completed_date AND et2.id > et.id))
+    )"];
+    $baseParams = [];
+    if ($fEmployeeId > 0) {
+        $baseWhere[] = 'et.employee_id = :eid';
+        $baseParams['eid'] = $fEmployeeId;
+    }
+    if ($fType !== '' && in_array($fType, ['initial', 'refresher'], true)) {
+        $baseWhere[] = 'et.training_type = :ty';
+        $baseParams['ty'] = $fType;
+    }
+    if ($fDepartmentId > 0) {
+        $baseWhere[] = 'e.department_id = :did';
+        $baseParams['did'] = $fDepartmentId;
+    }
+    $baseSql = 'WHERE ' . implode(' AND ', $baseWhere);
+
+    $bstmt = $pdo->prepare("
+        SELECT et.*, tt.name AS topic_name, tt.default_reminder_days AS topic_default_rem,
+               e.first_name, e.last_name, e.employee_code,
+               d.name AS department_name, d.color AS department_color
+        FROM employee_trainings et
+        JOIN training_topics tt ON tt.id = et.training_topic_id
+        JOIN employees e       ON e.id = et.employee_id
+        LEFT JOIN departments d ON d.id = e.department_id
+        $baseSql
+    ");
+    $bstmt->execute($baseParams);
+    $coverageBase = $bstmt->fetchAll(PDO::FETCH_ASSOC);
+}
+
+$virtualRows = tc_buildVirtualRows($pdo, $coverageBase, $allTopicsById);
+
+/* Applica i filtri attivi alle righe virtuali */
+if ($fTopicId > 0) {
+    $virtualRows = array_values(array_filter($virtualRows, function ($v) use ($fTopicId) {
+        return (int)$v['training_topic_id'] === $fTopicId;
+    }));
+}
+
+$coveredKeys = tc_coveredKeys($virtualRows);
+
 $filtered = [];
 $counters = ['compliant' => 0, 'due_soon' => 0, 'expired' => 0, 'not_present' => 0, 'all' => 0];
 foreach ($rows as $r) {
@@ -106,6 +169,21 @@ foreach ($rows as $r) {
     $filtered[] = $r;
 }
 
+/* Righe coperte: stesso calcolo di stato delle righe reali */
+foreach ($virtualRows as $v) {
+    $s = trainingStatus(
+        $v['next_due_date'] ?: null,
+        null,
+        $v['topic_default_rem'] !== null ? (int)$v['topic_default_rem'] : null
+    );
+    $v['_status'] = $s;
+    $counters['all']++;
+    $counters[$s['code']] = ($counters[$s['code']] ?? 0) + 1;
+
+    if ($fStatus !== '' && $fStatus !== $s['code']) continue;
+    $filtered[] = $v;
+}
+
 /* ==========================================
    "NOT PRESENT" — mandatory topics without any record for an employee.
    Apply the same filters (employee_id / topic_id / department_id / type=initial).
@@ -146,6 +224,9 @@ if ($fType === '' || $fType === 'initial') {
     $missingRows = $missingStmt->fetchAll(PDO::FETCH_ASSOC);
 
     foreach ($missingRows as $m) {
+        // Se il corso obbligatorio è assorbito da un altro già svolto, non è "Non presente"
+        if (isset($coveredKeys[$m['employee_id'] . ':' . $m['topic_id']])) continue;
+
         $counters['all']++;
         $counters['not_present']++;
         if ($fStatus !== '' && $fStatus !== 'not_present') continue;
@@ -421,6 +502,19 @@ function fmtDate(?string $d): string
             border: 1px solid #cbd5e1;
         }
 
+        .pill-covered {
+            background: #ede9fe;
+            color: #5b21b6;
+            border: 1px solid #ddd6fe;
+            font-size: .78rem;
+            margin-left: 6px;
+            white-space: nowrap;
+        }
+
+        tr.row-covered {
+            background-color: #faf5ff !important;
+        }
+
         .pill-dept-inline {
             padding: 2px 8px;
         }
@@ -617,7 +711,7 @@ function fmtDate(?string $d): string
                                             $typeLbl  = $r['training_type'] === 'refresher' ? 'Aggiornamento' : ($r['training_type'] === 'initial' ? 'Iniziale' : '—');
                                             $days     = $r['_status']['days'] ?? null;
                                             ?>
-                                            <tr>
+                                            <tr class="<?= !empty($r['_covered']) ? 'row-covered' : '' ?>">
                                                 <td>
                                                     <?php if (!empty($r['id'])): ?>
                                                         <input type="checkbox" class="form-check-input row-check" value="<?= (int)$r['id'] ?>">
@@ -638,7 +732,14 @@ function fmtDate(?string $d): string
                                                         </span>
                                                         <?php else: ?>—<?php endif; ?>
                                                 </td>
-                                                <td><?= htmlspecialchars($r['topic_name']) ?></td>
+                                                <td>
+                                                    <?= htmlspecialchars($r['topic_name']) ?>
+                                                    <?php if (!empty($r['_covered'])): ?>
+                                                        <span class="pill pill-covered" title="Assorbito automaticamente dal corso <?= htmlspecialchars($r['_covered_by_name'], ENT_QUOTES) ?>">
+                                                            ⛓️ Coperto da <?= htmlspecialchars($r['_covered_by_name']) ?>
+                                                        </span>
+                                                    <?php endif; ?>
+                                                </td>
                                                 <td><span class="pill pill-role"><?= $typeLbl ?></span></td>
                                                 <td><?= fmtDate($r['completed_date']) ?></td>
                                                 <td><?= fmtDate($r['next_due_date']) ?></td>
@@ -677,7 +778,14 @@ function fmtDate(?string $d): string
                                             </div>
                                             <span class="pill pill-<?= $r['_status']['class'] ?>"><?= $r['_status']['label'] ?></span>
                                         </div>
-                                        <div class="topic">📖 <?= htmlspecialchars($r['topic_name']) ?></div>
+                                        <div class="topic">
+                                            📖 <?= htmlspecialchars($r['topic_name']) ?>
+                                            <?php if (!empty($r['_covered'])): ?>
+                                                <div class="mt-1">
+                                                    <span class="pill pill-covered">⛓️ Coperto da <?= htmlspecialchars($r['_covered_by_name']) ?></span>
+                                                </div>
+                                            <?php endif; ?>
+                                        </div>
                                         <div class="meta">
                                             <span><b>Tipo:</b> <?= $typeLbl ?></span>
                                             <span><b>Completato:</b> <?= fmtDate($r['completed_date']) ?></span>