public/assets/css/style.css

@@ -3170,3 +3170,179 @@ input[type="range"]::-moz-range-track {
     height: 6px;
     border-radius: 3px;
 }
+
+/* ==========================================================================
+   Notification Bell & Modal
+   ========================================================================== */
+
+.notification-btn-wrapper {
+    position: relative;
+    display: inline-flex;
+}
+
+.notification-btn {
+    position: relative;
+}
+
+.notification-badge {
+    position: absolute;
+    top: 2px;
+    right: 2px;
+    min-width: 16px;
+    height: 16px;
+    padding: 0 4px;
+    border-radius: 100px;
+    background: var(--danger);
+    color: #fff;
+    font-size: 0.6rem;
+    font-weight: 700;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    line-height: 1;
+    box-shadow: 0 0 0 2px var(--bg-secondary);
+    pointer-events: none;
+}
+
+.notif-item {
+    display: flex;
+    align-items: flex-start;
+    gap: 12px;
+    padding: 14px 18px;
+    border-bottom: 1px solid var(--border-color);
+    cursor: pointer;
+    transition: background 0.15s;
+}
+
+.notif-item:hover {
+    background: var(--bg-hover);
+}
+
+.notif-item:last-child {
+    border-bottom: none;
+}
+
+.notif-unread {
+    background: rgba(99, 102, 241, 0.04);
+}
+
+.notif-unread:hover {
+    background: rgba(99, 102, 241, 0.08);
+}
+
+.notif-icon {
+    width: 32px;
+    height: 32px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+    font-size: 0.85em;
+}
+
+.notif-icon.notif-danger { background: var(--danger-bg); color: var(--danger); }
+.notif-icon.notif-warning { background: var(--warning-bg); color: var(--warning); }
+.notif-icon.notif-info { background: var(--info-bg); color: var(--info); }
+
+.notif-content {
+    flex: 1;
+    min-width: 0;
+}
+
+.notif-title {
+    font-size: 0.88em;
+    font-weight: 600;
+    color: var(--text-primary);
+    margin-bottom: 2px;
+}
+
+.notif-message {
+    font-size: 0.82em;
+    color: var(--text-muted);
+    line-height: 1.4;
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+}
+
+.notif-time {
+    font-size: 0.72em;
+    color: var(--text-muted);
+    margin-top: 3px;
+    opacity: 0.7;
+}
+
+.notif-read .notif-title {
+    font-weight: 400;
+    opacity: 0.65;
+}
+
+.notif-dot {
+    width: 8px;
+    height: 8px;
+    border-radius: 50%;
+    background: var(--info);
+    flex-shrink: 0;
+    margin-top: 6px;
+}
+
+.btn-sm {
+    padding: 0.3rem 0.6rem;
+    font-size: 0.82rem;
+    border-radius: var(--radius-sm, 6px);
+}
+
+.btn-text {
+    background: none;
+    border: none;
+    color: var(--text-secondary);
+    cursor: pointer;
+    transition: color 0.15s;
+}
+
+.btn-text:hover {
+    color: var(--text-primary);
+    background: var(--bg-hover);
+}
+
+/* ==========================================================================
+   Notification Dropdown Panel
+   ========================================================================== */
+
+.notification-dropdown {
+    display: none;
+    position: absolute;
+    top: calc(100% + 6px);
+    right: 0;
+    width: 380px;
+    max-height: 520px;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: var(--radius-lg);
+    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
+    z-index: 300;
+    overflow: hidden;
+}
+
+.notification-dropdown.open {
+    display: block;
+}
+
+.notif-dropdown-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 12px 16px;
+    border-bottom: 1px solid var(--border-color);
+}
+
+.notif-dropdown-body {
+    max-height: 360px;
+    overflow-y: auto;
+}
+
+.notif-dropdown-footer {
+    border-top: 1px solid var(--border-color);
+}

routes/web.php

@@ -22,6 +22,7 @@ $router->get('/dashboard', [DashboardController::class, 'index'], [AuthMiddlewar
 $router->get('/dashboard/stats', [DashboardController::class, 'stats'], [AuthMiddleware::class]);
 $router->get('/dashboard/refresh-metrics', [DashboardController::class, 'refreshMetrics'], [AuthMiddleware::class]);
 $router->get('/dashboard/chart-data', [DashboardController::class, 'chartData'], [AuthMiddleware::class]);
+$router->get('/notifications', [DashboardController::class, 'notifications'], [AuthMiddleware::class]);
 
 $router->get('/login', [AuthController::class, 'loginForm']);
 $router->post('/login', [AuthController::class, 'login'], [CSRFMiddleware::class, RateLimitMiddleware::class]);

src/Controllers/DashboardController.php

@@ -7,6 +7,7 @@ namespace ServerManager\Controllers;
 use ServerManager\Core\App;
 use ServerManager\Core\Session;
 use ServerManager\Models\Server;
+use ServerManager\Models\Notification;
 use ServerManager\Services\MonitoringService;
 use ServerManager\Services\AuditService;
 
@@ -80,4 +81,22 @@ class DashboardController
             'data' => $data,
         ]);
     }
+
+    public function notifications(): void
+    {
+        $userId = (int) Session::get('user_id');
+        $page = (int) ($_GET['page'] ?? 1);
+        $perPage = 20;
+
+        $notificationModel = new Notification();
+        $result = $notificationModel->getForUser($userId, $page, $perPage);
+        $unreadCount = $notificationModel->getUnreadCount($userId);
+
+        $this->view->display('notifications.index', [
+            'title' => 'Notifications - ServerManager',
+            'notifications' => $result['data'],
+            'pagination' => $result,
+            'unreadCount' => $unreadCount,
+        ]);
+    }
 }

views/dashboard/index.php

@@ -154,6 +154,12 @@ $aggregatedMetrics = $aggregatedMetrics ?? [];
                                     <?= htmlspecialchars($activity['actor_name'] ?? $activity['username'] ?? 'System') ?>
                                     &middot; <?= date('H:i', strtotime($activity['created_at'] ?? '')) ?>
                                 </span>
+                            </div>
+                        </div>
+                    <?php endforeach; ?>
+                </div>
+            <?php endif; ?>
+        </div>
     </div>
 </div>
 
@@ -298,9 +304,4 @@ if (aggregatedData.length > 0) {
 
 setInterval(refreshAggregatedChart, 30000);
 </script>
-                    <?php endforeach; ?>
-                </div>
-            <?php endif; ?>
-        </div>
-    </div>
 </div>

views/layouts/main.php

@@ -4,6 +4,17 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta name="csrf-token" content="<?= $_SESSION['csrf_token'] ?? '' ?>">
+    <meta name="api-token" content="<?php
+        $uid = $_SESSION['user_id'] ?? 0;
+        $token = '';
+        if ($uid) {
+            $u = \ServerManager\Core\Database::getInstance()->fetch(
+                'SELECT api_token FROM users WHERE id = ? AND status = \'active\'', [(int) $uid]
+            );
+            $token = $u['api_token'] ?? '';
+        }
+        echo htmlspecialchars($token);
+    ?>">
     <title><?= htmlspecialchars($title ?? 'ServerManager') ?></title>
     <link rel="icon" type="image/svg+xml" href="/assets/img/server.svg">
     <link rel="stylesheet" href="/assets/css/style.css">
@@ -29,6 +40,12 @@
                             <span>Dashboard</span>
                         </a>
                     </li>
+                    <li class="nav-item">
+                        <a href="/notifications" class="nav-link <?= str_starts_with($_SERVER['REQUEST_URI'] ?? '', '/notifications') ? 'active' : '' ?>">
+                            <i class="fas fa-bell"></i>
+                            <span>Notifications</span>
+                        </a>
+                    </li>
                     <li class="nav-item nav-item-accordion <?= str_starts_with($_SERVER['REQUEST_URI'] ?? '', '/servers') ? 'active' : '' ?>">
                         <a href="#" class="nav-link" onclick="toggleServerList(event)">
                             <i class="fas fa-hdd"></i>
@@ -135,6 +152,34 @@
                         <button class="btn-icon" id="themeToggle" title="Toggle theme">
                             <i class="fas fa-moon"></i>
                         </button>
+                        <div class="notification-btn-wrapper">
+                            <button class="btn-icon notification-btn" id="notificationBell" title="Notifications" onclick="toggleNotifications()">
+                                <i class="fas fa-bell"></i>
+                                <span class="notification-badge" id="notificationBadge" style="display:none">0</span>
+                            </button>
+                            <div class="notification-dropdown" id="notifDropdown">
+                                <div class="notif-dropdown-header">
+                                    <span style="font-weight:600;font-size:0.9em">Notifications</span>
+                                    <div style="display:flex;align-items:center;gap:6px">
+                                        <button class="btn-text" id="markAllReadBtn" onclick="markAllRead()" style="display:none;font-size:0.78em;padding:2px 6px;border-radius:4px">
+                                            <i class="fas fa-check-double"></i> Mark all read
+                                        </button>
+                                        <button class="btn-text" onclick="closeNotifications()" style="font-size:0.78em;padding:2px 6px;border-radius:4px">&times;</button>
+                                    </div>
+                                </div>
+                                <div class="notif-dropdown-body" id="notifList">
+                                    <div style="padding:40px 20px;text-align:center;color:var(--text-muted)">
+                                        <i class="fas fa-spinner fa-spin" style="font-size:1.5em;margin-bottom:10px;display:block"></i>
+                                        <span>Loading notifications...</span>
+                                    </div>
+                                </div>
+                                <div class="notif-dropdown-footer">
+                                    <a href="/notifications" class="btn-text" style="font-size:0.82em;color:var(--info);width:100%;text-align:center;padding:8px;display:block">
+                                        <i class="fas fa-external-link-alt"></i> View all notifications
+                                    </a>
+                                </div>
+                            </div>
+                        </div>
                     </div>
                 </div>
             </header>
@@ -169,6 +214,183 @@
     <?php endif; ?>
 <script>
 let serverListLoaded = false;
+
+function getApiToken() {
+    return document.querySelector('meta[name="api-token"]')?.getAttribute('content') || '';
+}
+
+function toggleNotifications() {
+    const dd = document.getElementById('notifDropdown');
+    if (dd.classList.contains('open')) {
+        closeNotifications();
+    } else {
+        openNotifications();
+    }
+}
+
+function openNotifications() {
+    const dd = document.getElementById('notifDropdown');
+    dd.classList.add('open');
+    fetchNotifications();
+    document.addEventListener('click', notifOutsideClick);
+}
+
+function closeNotifications() {
+    const dd = document.getElementById('notifDropdown');
+    dd.classList.remove('open');
+    document.removeEventListener('click', notifOutsideClick);
+}
+
+function notifOutsideClick(e) {
+    const wrapper = document.querySelector('.notification-btn-wrapper');
+    if (!wrapper.contains(e.target)) {
+        closeNotifications();
+    }
+}
+
+function fetchNotifications() {
+    const list = document.getElementById('notifList');
+    list.innerHTML = '<div style="padding:40px 20px;text-align:center;color:var(--text-muted)"><i class="fas fa-spinner fa-spin" style="font-size:1.5em;margin-bottom:10px;display:block"></i><span>Loading notifications...</span></div>';
+
+    const token = getApiToken();
+    const headers = { 'Accept': 'application/json' };
+    if (token) headers['Authorization'] = 'Bearer ' + token;
+
+    fetch('/api/notifications?per_page=10', { headers })
+        .then(r => r.json())
+        .then(d => {
+            if (!d.success) {
+                list.innerHTML = '<div style="padding:40px 20px;text-align:center;color:var(--text-muted)">Could not load notifications.</div>';
+                return;
+            }
+            renderNotifications(d.data || [], d.unread_count || 0);
+        })
+        .catch(() => {
+            list.innerHTML = '<div style="padding:40px 20px;text-align:center;color:var(--danger)">Failed to load notifications.</div>';
+        });
+}
+
+function renderNotifications(items, unreadCount) {
+    const list = document.getElementById('notifList');
+
+    if (!items.length) {
+        list.innerHTML = '<div style="padding:40px 20px;text-align:center;color:var(--text-muted)">'
+            + '<i class="fas fa-check-circle" style="font-size:1.8em;margin-bottom:10px;display:block;color:var(--success)"></i>'
+            + '<span>No notifications</span></div>';
+        document.getElementById('markAllReadBtn').style.display = 'none';
+        return;
+    }
+
+    let html = '';
+    items.forEach(function(n) {
+        const typeColors = { error: 'danger', warning: 'warning', info: 'info' };
+        const typeColor = typeColors[n.type] || 'info';
+        const icons = { error: 'fa-times-circle', warning: 'fa-exclamation-triangle', info: 'fa-info-circle' };
+        const icon = icons[n.type] || 'fa-info-circle';
+
+        html += '<div class="notif-item ' + (n.is_read ? 'notif-read' : 'notif-unread') + '"'
+            + ' onclick="markRead(' + n.id + ', this)"'
+            + ' data-id="' + n.id + '">'
+            + '<div class="notif-icon notif-' + typeColor + '"><i class="fas ' + icon + '"></i></div>'
+            + '<div class="notif-content">'
+            + '<div class="notif-title">' + escapeHtml(n.title) + '</div>'
+            + '<div class="notif-message">' + escapeHtml(n.message) + '</div>'
+            + '<div class="notif-time">' + timeAgo(n.created_at) + '</div>'
+            + '</div>'
+            + (n.is_read ? '' : '<div class="notif-dot"></div>')
+            + '</div>';
+    });
+    list.innerHTML = html;
+
+    document.getElementById('markAllReadBtn').style.display = unreadCount > 0 ? 'inline-flex' : 'none';
+}
+
+function markRead(id, el) {
+    if (el.classList.contains('notif-read')) return;
+
+    const token = getApiToken();
+    const headers = { 'Accept': 'application/json' };
+    if (token) headers['Authorization'] = 'Bearer ' + token;
+
+    fetch('/api/notifications/' + id + '/read', { method: 'POST', headers })
+        .then(r => r.json())
+        .then(d => {
+            if (d.success) {
+                el.classList.remove('notif-unread');
+                el.classList.add('notif-read');
+                const dot = el.querySelector('.notif-dot');
+                if (dot) dot.remove();
+                updateUnreadCount();
+            }
+        })
+        .catch(function(){});
+}
+
+function markAllRead() {
+    const token = getApiToken();
+    const headers = { 'Accept': 'application/json' };
+    if (token) headers['Authorization'] = 'Bearer ' + token;
+
+    fetch('/api/notifications/read-all', { method: 'POST', headers })
+        .then(r => r.json())
+        .then(d => {
+            if (d.success) {
+                document.querySelectorAll('.notif-item').forEach(function(el) {
+                    el.classList.remove('notif-unread');
+                    el.classList.add('notif-read');
+                    const dot = el.querySelector('.notif-dot');
+                    if (dot) dot.remove();
+                });
+                document.getElementById('markAllReadBtn').style.display = 'none';
+                updateUnreadCount();
+            }
+        })
+        .catch(function(){});
+}
+
+function updateUnreadCount() {
+    const token = getApiToken();
+    const headers = { 'Accept': 'application/json' };
+    if (token) headers['Authorization'] = 'Bearer ' + token;
+
+    fetch('/api/notifications/unread-count', { headers })
+        .then(r => r.json())
+        .then(d => {
+            const count = d.unread_count || 0;
+            const badge = document.getElementById('notificationBadge');
+            if (count > 0) {
+                badge.textContent = count > 99 ? '99+' : count;
+                badge.style.display = 'inline-flex';
+            } else {
+                badge.style.display = 'none';
+            }
+        })
+        .catch(function(){});
+}
+
+function escapeHtml(str) {
+    const d = document.createElement('div');
+    d.textContent = str;
+    return d.innerHTML;
+}
+
+function timeAgo(dateStr) {
+    const now = new Date();
+    const d = new Date(dateStr.replace(' ', 'T') + (dateStr.includes('Z') ? '' : 'Z'));
+    const diff = Math.floor((now - d) / 1000);
+    if (diff < 60) return 'just now';
+    if (diff < 3600) return Math.floor(diff / 60) + 'm ago';
+    if (diff < 86400) return Math.floor(diff / 3600) + 'h ago';
+    const days = Math.floor(diff / 86400);
+    if (days < 7) return days + 'd ago';
+    return d.toLocaleDateString();
+}
+
+// Poll unread count every 60s
+setInterval(updateUnreadCount, 60000);
+// Initial fetch
+updateUnreadCount();
+
 function toggleServerList(e) {
     e.preventDefault();
     const item = e.currentTarget.closest('.nav-item-accordion');

views/notifications/index.php

@@ -0,0 +1,91 @@
+<?php
+$notifications = $notifications ?? [];
+$pagination = $pagination ?? [];
+$unreadCount = $unreadCount ?? 0;
+$data = $notifications ?? [];
+?>
+
+<div class="page-header">
+    <div class="page-header-left">
+        <div class="back-link">
+            <a href="/dashboard"><i class="fas fa-arrow-left"></i> Back to Dashboard</a>
+        </div>
+        <h1 class="page-title">Notifications</h1>
+        <p class="page-subtitle">
+            <?= $unreadCount ?> unread &middot; <?= $pagination['total'] ?? 0 ?> total
+        </p>
+    </div>
+    <div class="page-header-right">
+        <?php if ($unreadCount > 0): ?>
+        <button class="btn btn-sm btn-text" onclick="markAllRead()" style="font-size:0.85em">
+            <i class="fas fa-check-double"></i> Mark all read
+        </button>
+        <?php endif; ?>
+    </div>
+</div>
+
+<div class="card">
+    <div class="card-body" style="padding:0">
+        <?php if (empty($data)): ?>
+        <div style="padding:60px 20px;text-align:center;color:var(--text-muted)">
+            <i class="fas fa-check-circle" style="font-size:2.5em;margin-bottom:12px;display:block;color:var(--success)"></i>
+            <p style="font-size:1.05em">All caught up!</p>
+            <p style="font-size:0.9em">No notifications to show.</p>
+        </div>
+        <?php else: ?>
+            <?php foreach ($data as $n): ?>
+            <?php
+                $typeColors = ['error' => 'danger', 'warning' => 'warning', 'info' => 'info'];
+                $icons = ['error' => 'fa-times-circle', 'warning' => 'fa-exclamation-triangle', 'info' => 'fa-info-circle'];
+                $tc = $typeColors[$n['type']] ?? 'info';
+                $icon = $icons[$n['type']] ?? 'fa-info-circle';
+                $isRead = !empty($n['is_read']);
+            ?>
+            <div class="notif-item <?= $isRead ? 'notif-read' : 'notif-unread' ?>" data-id="<?= $n['id'] ?>">
+                <div class="notif-icon notif-<?= $tc ?>"><i class="fas <?= $icon ?>"></i></div>
+                <div class="notif-content">
+                    <div class="notif-title"><?= htmlspecialchars($n['title'] ?? '') ?></div>
+                    <div class="notif-message"><?= htmlspecialchars($n['message'] ?? '') ?></div>
+                    <div class="notif-time"><?= time_ago($n['created_at'] ?? '') ?></div>
+                </div>
+                <?php if (!$isRead): ?>
+                <div class="notif-dot"></div>
+                <?php endif; ?>
+            </div>
+            <?php endforeach; ?>
+        <?php endif; ?>
+    </div>
+</div>
+
+<?php if (($pagination['total_pages'] ?? 1) > 1): ?>
+<div class="pagination">
+    <?php for ($i = 1; $i <= $pagination['total_pages']; $i++): ?>
+    <a href="/notifications?page=<?= $i ?>" class="btn btn-sm <?= ($pagination['page'] ?? 1) === $i ? 'btn-primary' : 'btn-secondary' ?>">
+        <?= $i ?>
+    </a>
+    <?php endfor; ?>
+</div>
+<?php endif; ?>
+
+<script>
+function markAllRead() {
+    const token = document.querySelector('meta[name="api-token"]')?.getAttribute('content') || '';
+    const headers = { 'Accept': 'application/json' };
+    if (token) headers['Authorization'] = 'Bearer ' + token;
+
+    fetch('/api/notifications/read-all', { method: 'POST', headers })
+        .then(r => r.json())
+        .then(d => {
+            if (d.success) {
+                document.querySelectorAll('.notif-item').forEach(function(el) {
+                    el.classList.remove('notif-unread');
+                    el.classList.add('notif-read');
+                    const dot = el.querySelector('.notif-dot');
+                    if (dot) dot.remove();
+                });
+                location.reload();
+            }
+        })
+        .catch(function(){});
+}
+</script>