feat: Add forum search, markdown, user stats, and admin bulk actions

New features implemented:
- Forum search with title/content filtering
- Solution filter (topics with marked solutions)
- Quote reply functionality with @mention
- @mentions parsing and notifications
- Simple markdown formatting (bold, italic, code, quotes, lists)
- User forum statistics tooltip (topics, replies, solutions, reactions)
- Admin bulk actions (pin/unpin, lock/unlock, status change, delete)

Files changed:
- blueprints/forum/routes.py: user_forum_stats, admin_forum_bulk_action endpoints
- templates/forum/topic.html: user stats tooltips, markdown CSS
- templates/forum/index.html: search box, solution filter
- templates/admin/forum.html: bulk selection checkboxes and action bar
- utils/markdown.py: simple forum markdown parser
- utils/notifications.py: @mention notification parsing

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app.py

@@ -244,6 +244,10 @@ def ensure_url_filter(url):
         return f'https://{url}'
     return url
 
+# Register forum markdown filter
+from utils.markdown import register_markdown_filter
+register_markdown_filter(app)
+
 # Initialize extensions from centralized extensions.py
 from extensions import csrf, limiter, login_manager
 

blueprints/__init__.py

@@ -215,6 +215,8 @@ def register_blueprints(app):
             'topic_edit_history': 'forum.topic_edit_history',
             'reply_edit_history': 'forum.reply_edit_history',
             'admin_deleted_content': 'forum.admin_deleted_content',
+            'user_forum_stats': 'forum.user_forum_stats',
+            'admin_forum_bulk_action': 'forum.admin_forum_bulk_action',
         })
         logger.info("Created forum endpoint aliases")
     except ImportError as e:

blueprints/forum/routes.py

@@ -21,7 +21,8 @@ from utils.notifications import (
     create_forum_reply_notification,
     create_forum_reaction_notification,
     create_forum_solution_notification,
-    create_forum_report_notification
+    create_forum_report_notification,
+    parse_mentions_and_notify
 )
 
 # Constants
@@ -47,11 +48,13 @@ except ImportError:
 @bp.route('/forum')
 @login_required
 def forum_index():
-    """Forum - list of topics with category/status filters"""
+    """Forum - list of topics with category/status/solution filters and search"""
     page = request.args.get('page', 1, type=int)
     per_page = 20
     category_filter = request.args.get('category', '')
     status_filter = request.args.get('status', '')
+    has_solution = request.args.get('has_solution', '')
+    search_query = request.args.get('q', '').strip()
 
     db = SessionLocal()
     try:
@@ -66,6 +69,25 @@ def forum_index():
         if status_filter and status_filter in ForumTopic.STATUSES:
             query = query.filter(ForumTopic.status == status_filter)
 
+        # Filter by has solution
+        if has_solution == '1':
+            # Topics that have at least one reply marked as solution
+            from sqlalchemy import exists
+            query = query.filter(
+                exists().where(
+                    (ForumReply.topic_id == ForumTopic.id) &
+                    (ForumReply.is_solution == True)
+                )
+            )
+
+        # Search in title and content
+        if search_query:
+            search_term = f'%{search_query}%'
+            query = query.filter(
+                (ForumTopic.title.ilike(search_term)) |
+                (ForumTopic.content.ilike(search_term))
+            )
+
         # Order by pinned first, then by last activity
         query = query.order_by(
             ForumTopic.is_pinned.desc(),
@@ -84,6 +106,8 @@ def forum_index():
             total_pages=(total_topics + per_page - 1) // per_page,
             category_filter=category_filter,
             status_filter=status_filter,
+            has_solution=has_solution,
+            search_query=search_query,
             categories=ForumTopic.CATEGORIES,
             statuses=ForumTopic.STATUSES,
             category_labels=ForumTopic.CATEGORY_LABELS,
@@ -160,6 +184,20 @@ def forum_new_topic():
                     else:
                         flash(f'Załącznik: {error_msg}', 'warning')
 
+            # Parse @mentions and send notifications
+            try:
+                author_name = current_user.name or current_user.email.split('@')[0]
+                parse_mentions_and_notify(
+                    content=content,
+                    author_id=current_user.id,
+                    author_name=author_name,
+                    topic_id=topic.id,
+                    content_type='topic',
+                    content_id=topic.id
+                )
+            except Exception as e:
+                logger.warning(f"Failed to parse mentions in new topic: {e}")
+
             flash('Temat został utworzony.', 'success')
             return redirect(url_for('.forum_topic', topic_id=topic.id))
         finally:
@@ -305,6 +343,20 @@ def forum_reply(topic_id):
         except Exception as e:
             logger.warning(f"Failed to send reply notifications: {e}")
 
+        # Parse @mentions and send notifications
+        try:
+            author_name = current_user.name or current_user.email.split('@')[0]
+            parse_mentions_and_notify(
+                content=content,
+                author_id=current_user.id,
+                author_name=author_name,
+                topic_id=topic_id,
+                content_type='reply',
+                content_id=reply.id
+            )
+        except Exception as e:
+            logger.warning(f"Failed to parse mentions: {e}")
+
         flash('Odpowiedź dodana.', 'success')
         return redirect(url_for('.forum_topic', topic_id=topic_id))
     finally:
@@ -512,6 +564,88 @@ def admin_forum_change_status(topic_id):
         db.close()
 
 
+@bp.route('/admin/forum/bulk-action', methods=['POST'])
+@login_required
+def admin_forum_bulk_action():
+    """Perform bulk action on multiple topics (admin only)"""
+    if not current_user.is_admin:
+        return jsonify({'success': False, 'error': 'Brak uprawnień'}), 403
+
+    data = request.get_json() or {}
+    topic_ids = data.get('topic_ids', [])
+    action = data.get('action')
+
+    if not topic_ids or not isinstance(topic_ids, list):
+        return jsonify({'success': False, 'error': 'Nie wybrano tematów'}), 400
+
+    if action not in ['pin', 'unpin', 'lock', 'unlock', 'status', 'delete']:
+        return jsonify({'success': False, 'error': 'Nieprawidłowa akcja'}), 400
+
+    db = SessionLocal()
+    try:
+        topics = db.query(ForumTopic).filter(ForumTopic.id.in_(topic_ids)).all()
+
+        if not topics:
+            return jsonify({'success': False, 'error': 'Nie znaleziono tematów'}), 404
+
+        count = len(topics)
+
+        if action == 'pin':
+            for topic in topics:
+                topic.is_pinned = True
+            message = f'Przypięto {count} tematów'
+
+        elif action == 'unpin':
+            for topic in topics:
+                topic.is_pinned = False
+            message = f'Odpięto {count} tematów'
+
+        elif action == 'lock':
+            for topic in topics:
+                topic.is_locked = True
+            message = f'Zablokowano {count} tematów'
+
+        elif action == 'unlock':
+            for topic in topics:
+                topic.is_locked = False
+            message = f'Odblokowano {count} tematów'
+
+        elif action == 'status':
+            new_status = data.get('status')
+            if not new_status or new_status not in ForumTopic.STATUSES:
+                return jsonify({'success': False, 'error': 'Nieprawidłowy status'}), 400
+            for topic in topics:
+                topic.status = new_status
+                topic.status_changed_by = current_user.id
+                topic.status_changed_at = datetime.now()
+            status_label = ForumTopic.STATUS_LABELS.get(new_status, new_status)
+            message = f'Zmieniono status {count} tematów na: {status_label}'
+
+        elif action == 'delete':
+            # Soft delete topics
+            for topic in topics:
+                topic.is_deleted = True
+                topic.deleted_at = datetime.now()
+                topic.deleted_by = current_user.id
+            message = f'Usunięto {count} tematów'
+
+        db.commit()
+        logger.info(f"Admin {current_user.email} performed bulk action '{action}' on {count} topics: {topic_ids}")
+
+        return jsonify({
+            'success': True,
+            'message': message,
+            'affected_count': count
+        })
+
+    except Exception as e:
+        db.rollback()
+        logger.error(f"Error in bulk action: {e}")
+        return jsonify({'success': False, 'error': 'Wystąpił błąd'}), 500
+    finally:
+        db.close()
+
+
 # ============================================================
 # USER FORUM ACTIONS (edit, delete, reactions, subscriptions)
 # ============================================================
@@ -1303,3 +1437,83 @@ def admin_deleted_content():
         )
     finally:
         db.close()
+
+
+# ============================================================
+# USER STATISTICS
+# ============================================================
+
+@bp.route('/forum/user/<int:user_id>/stats')
+@login_required
+def user_forum_stats(user_id):
+    """Get forum statistics for a user (for tooltip display)"""
+    from sqlalchemy import func
+
+    db = SessionLocal()
+    try:
+        # Count topics created
+        topic_count = db.query(func.count(ForumTopic.id)).filter(
+            ForumTopic.author_id == user_id,
+            (ForumTopic.is_deleted == False) | (ForumTopic.is_deleted.is_(None))
+        ).scalar() or 0
+
+        # Count replies created
+        reply_count = db.query(func.count(ForumReply.id)).filter(
+            ForumReply.author_id == user_id,
+            (ForumReply.is_deleted == False) | (ForumReply.is_deleted.is_(None))
+        ).scalar() or 0
+
+        # Count solutions marked
+        solution_count = db.query(func.count(ForumReply.id)).filter(
+            ForumReply.author_id == user_id,
+            ForumReply.is_solution == True,
+            (ForumReply.is_deleted == False) | (ForumReply.is_deleted.is_(None))
+        ).scalar() or 0
+
+        # Count reactions received on user's topics and replies
+        # Using JSONB - count non-empty reaction arrays
+        reactions_received = 0
+
+        # Get user's topics with reactions
+        user_topics = db.query(ForumTopic).filter(
+            ForumTopic.author_id == user_id,
+            ForumTopic.reactions.isnot(None)
+        ).all()
+        for topic in user_topics:
+            if topic.reactions:
+                for emoji, user_ids in topic.reactions.items():
+                    if isinstance(user_ids, list):
+                        reactions_received += len(user_ids)
+
+        # Get user's replies with reactions
+        user_replies = db.query(ForumReply).filter(
+            ForumReply.author_id == user_id,
+            ForumReply.reactions.isnot(None)
+        ).all()
+        for reply in user_replies:
+            if reply.reactions:
+                for emoji, user_ids in reply.reactions.items():
+                    if isinstance(user_ids, list):
+                        reactions_received += len(user_ids)
+
+        # Get user info
+        user = db.query(User).filter(User.id == user_id).first()
+        user_name = user.full_name if user else 'Nieznany'
+
+        return jsonify({
+            'success': True,
+            'user_id': user_id,
+            'user_name': user_name,
+            'stats': {
+                'topics': topic_count,
+                'replies': reply_count,
+                'solutions': solution_count,
+                'reactions_received': reactions_received,
+                'total_posts': topic_count + reply_count
+            }
+        })
+    except Exception as e:
+        logger.error(f"Error getting user stats: {e}")
+        return jsonify({'success': False, 'error': str(e)}), 500
+    finally:
+        db.close()

templates/admin/forum.html

@@ -342,6 +342,68 @@
             display: none;
         }
     }
+
+    /* Bulk actions */
+    .bulk-checkbox {
+        width: 18px;
+        height: 18px;
+        cursor: pointer;
+    }
+
+    .bulk-actions-bar {
+        display: none;
+        position: sticky;
+        top: 0;
+        background: var(--primary);
+        color: white;
+        padding: var(--spacing-md) var(--spacing-lg);
+        border-radius: var(--radius);
+        margin-bottom: var(--spacing-md);
+        justify-content: space-between;
+        align-items: center;
+        z-index: 100;
+        box-shadow: var(--shadow);
+    }
+
+    .bulk-actions-bar.visible {
+        display: flex;
+    }
+
+    .bulk-actions-bar .selected-count {
+        font-weight: 600;
+    }
+
+    .bulk-actions-bar .bulk-actions {
+        display: flex;
+        gap: var(--spacing-sm);
+    }
+
+    .bulk-actions-bar .bulk-btn {
+        background: rgba(255,255,255,0.2);
+        border: none;
+        color: white;
+        padding: var(--spacing-sm) var(--spacing-md);
+        border-radius: var(--radius);
+        cursor: pointer;
+        font-size: var(--font-size-sm);
+        transition: var(--transition);
+    }
+
+    .bulk-actions-bar .bulk-btn:hover {
+        background: rgba(255,255,255,0.3);
+    }
+
+    .bulk-actions-bar .bulk-btn.danger {
+        background: var(--error);
+    }
+
+    .bulk-actions-bar .bulk-btn.danger:hover {
+        background: #c53030;
+    }
+
+    .topics-table tr.selected {
+        background: #dbeafe;
+    }
 </style>
 {% endblock %}
 
@@ -426,10 +488,41 @@
 <!-- Topics Section -->
 <div class="section">
     <h2>Tematy</h2>
+
+    <!-- Bulk Actions Bar -->
+    <div class="bulk-actions-bar" id="bulkActionsBar">
+        <span class="selected-count"><span id="selectedCount">0</span> zaznaczonych</span>
+        <div class="bulk-actions">
+            <button class="bulk-btn" onclick="bulkAction('pin')" title="Przypnij zaznaczone">
+                📌 Przypnij
+            </button>
+            <button class="bulk-btn" onclick="bulkAction('unpin')" title="Odepnij zaznaczone">
+                📍 Odepnij
+            </button>
+            <button class="bulk-btn" onclick="bulkAction('lock')" title="Zablokuj zaznaczone">
+                🔒 Zablokuj
+            </button>
+            <button class="bulk-btn" onclick="bulkAction('unlock')" title="Odblokuj zaznaczone">
+                🔓 Odblokuj
+            </button>
+            <select id="bulkStatusSelect" class="bulk-btn" style="background:rgba(255,255,255,0.2)" onchange="bulkAction('status')">
+                <option value="">Zmień status...</option>
+                <option value="new">Nowy</option>
+                <option value="in_progress">W realizacji</option>
+                <option value="resolved">Rozwiązany</option>
+                <option value="rejected">Odrzucony</option>
+            </select>
+            <button class="bulk-btn danger" onclick="bulkAction('delete')" title="Usuń zaznaczone">
+                🗑️ Usuń
+            </button>
+        </div>
+    </div>
+
     {% if topics %}
     <table class="topics-table">
         <thead>
             <tr>
+                <th style="width:40px"><input type="checkbox" class="bulk-checkbox" id="selectAll" onchange="toggleSelectAll()"></th>
                 <th>Tytul</th>
                 <th>Kategoria</th>
                 <th>Autor</th>
@@ -441,6 +534,9 @@
         <tbody>
             {% for topic in topics %}
             <tr data-topic-id="{{ topic.id }}">
+                <td>
+                    <input type="checkbox" class="bulk-checkbox topic-checkbox" value="{{ topic.id }}" onchange="updateBulkSelection()">
+                </td>
                 <td>
                     <div class="topic-title">
                         <a href="{{ url_for('forum_topic', topic_id=topic.id) }}">{{ topic.title }}</a>
@@ -791,4 +887,118 @@
             showMessage('Błąd połączenia', 'error');
         }
     }
+
+    // ============================================================
+    // BULK ACTIONS
+    // ============================================================
+
+    function getSelectedTopicIds() {
+        return Array.from(document.querySelectorAll('.topic-checkbox:checked')).map(cb => parseInt(cb.value));
+    }
+
+    function updateBulkSelection() {
+        const selected = getSelectedTopicIds();
+        const bar = document.getElementById('bulkActionsBar');
+        const count = document.getElementById('selectedCount');
+        const selectAll = document.getElementById('selectAll');
+
+        count.textContent = selected.length;
+
+        if (selected.length > 0) {
+            bar.classList.add('visible');
+        } else {
+            bar.classList.remove('visible');
+        }
+
+        // Update select all checkbox state
+        const allCheckboxes = document.querySelectorAll('.topic-checkbox');
+        selectAll.checked = allCheckboxes.length > 0 && selected.length === allCheckboxes.length;
+        selectAll.indeterminate = selected.length > 0 && selected.length < allCheckboxes.length;
+
+        // Highlight selected rows
+        document.querySelectorAll('.topics-table tbody tr').forEach(row => {
+            const checkbox = row.querySelector('.topic-checkbox');
+            if (checkbox && checkbox.checked) {
+                row.classList.add('selected');
+            } else {
+                row.classList.remove('selected');
+            }
+        });
+    }
+
+    function toggleSelectAll() {
+        const selectAll = document.getElementById('selectAll');
+        document.querySelectorAll('.topic-checkbox').forEach(cb => {
+            cb.checked = selectAll.checked;
+        });
+        updateBulkSelection();
+    }
+
+    async function bulkAction(action) {
+        const topicIds = getSelectedTopicIds();
+        if (topicIds.length === 0) {
+            showToast('Zaznacz tematy', 'warning');
+            return;
+        }
+
+        let confirmMessage = '';
+        let payload = { topic_ids: topicIds, action: action };
+
+        switch (action) {
+            case 'pin':
+                confirmMessage = `Przypnij ${topicIds.length} tematów?`;
+                break;
+            case 'unpin':
+                confirmMessage = `Odepnij ${topicIds.length} tematów?`;
+                break;
+            case 'lock':
+                confirmMessage = `Zablokuj ${topicIds.length} tematów?`;
+                break;
+            case 'unlock':
+                confirmMessage = `Odblokuj ${topicIds.length} tematów?`;
+                break;
+            case 'status':
+                const status = document.getElementById('bulkStatusSelect').value;
+                if (!status) return;
+                payload.status = status;
+                confirmMessage = `Zmień status ${topicIds.length} tematów na "${status}"?`;
+                document.getElementById('bulkStatusSelect').value = '';
+                break;
+            case 'delete':
+                confirmMessage = `<strong>Uwaga!</strong> Ta operacja jest nieodwracalna.<br><br>Usunąć ${topicIds.length} tematów wraz ze wszystkimi odpowiedziami?`;
+                break;
+            default:
+                return;
+        }
+
+        const confirmed = await showConfirm(confirmMessage, {
+            title: 'Akcja zbiorcza',
+            icon: action === 'delete' ? '⚠️' : '❓',
+            okText: action === 'delete' ? 'Usuń' : 'OK',
+            okClass: action === 'delete' ? 'btn-danger' : 'btn-primary'
+        });
+
+        if (!confirmed) return;
+
+        try {
+            const response = await fetch('/admin/forum/bulk-action', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'X-CSRFToken': csrfToken
+                },
+                body: JSON.stringify(payload)
+            });
+
+            const data = await response.json();
+            if (data.success) {
+                showToast(data.message || 'Operacja wykonana', 'success');
+                setTimeout(() => location.reload(), 1000);
+            } else {
+                showToast(data.error || 'Wystąpił błąd', 'error');
+            }
+        } catch (error) {
+            showToast('Błąd połączenia', 'error');
+        }
+    }
 {% endblock %}

templates/forum/index.html

@@ -355,19 +355,29 @@
     </a>
 </div>
 
-<!-- Filters - Uproszczone (ukryte kategorie i statusy) -->
+<!-- Search and Filters -->
 <div class="filters-bar">
-    <!-- Filtry kategorii i statusów ukryte - forum w fazie upraszczania -->
+    <!-- Search box -->
-    <!-- Oryginalny kod zachowany w komentarzu na wypadek przywrócenia:
     <div class="filter-group">
-        <span class="filter-label">Kategoria:</span>
+        <form action="{{ url_for('forum_index') }}" method="GET" style="display: flex; gap: var(--spacing-sm);">
-        <a href="{{ url_for('forum_index', status=status_filter) }}" class="filter-btn active">Wszystkie</a>
+            <input type="text" name="q" value="{{ search_query or '' }}" placeholder="Szukaj w forum..."
+                   style="padding: var(--spacing-sm) var(--spacing-md); border: 1px solid var(--border); border-radius: var(--radius); font-size: var(--font-size-sm); min-width: 200px;">
+            <button type="submit" class="filter-btn" style="background: var(--primary); color: white; border-color: var(--primary);">
+                <svg width="16" height="16" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><circle cx="11" cy="11" r="8"/><path d="m21 21-4.35-4.35"/></svg>
+            </button>
+            {% if search_query %}
+            <a href="{{ url_for('forum_index') }}" class="filter-btn" title="Wyczyść wyszukiwanie">✕</a>
+            {% endif %}
+        </form>
     </div>
-    -->
+
+    <!-- Solution filter -->
     <div class="filter-group">
-        <span class="filter-label" style="color: var(--text-secondary);">💬 Uwagi rozwojowe</span>
+        <a href="{{ url_for('forum_index', q=search_query) }}" class="filter-btn {% if not has_solution %}active{% endif %}">Wszystkie</a>
-        <span style="color: var(--text-muted); font-size: var(--font-size-sm); margin-left: var(--spacing-sm);">Zapraszamy do podzielenia się swoimi opiniami</span>
+        <a href="{{ url_for('forum_index', has_solution='1', q=search_query) }}" class="filter-btn {% if has_solution == '1' %}active{% endif %}">✓ Z rozwiązaniem</a>
     </div>
+
+    <!-- Toggle test topics -->
     <div class="filter-group" style="margin-left: auto;">
         <button type="button" id="toggleTestBtn" class="filter-btn toggle-test-btn" onclick="toggleTestTopics()">
             <span class="hide-label">🙈 Ukryj testowe</span>
@@ -376,6 +386,12 @@
     </div>
 </div>
 
+{% if search_query %}
+<div style="margin-bottom: var(--spacing-lg); color: var(--text-secondary);">
+    Wyniki wyszukiwania dla: <strong>{{ search_query }}</strong> ({{ total_topics }} wyników)
+</div>
+{% endif %}
+
 {% if topics %}
 <div class="topics-list">
     {% for topic in topics %}
@@ -394,6 +410,9 @@
                 <span class="topic-badge badge-status badge-{{ topic.status or 'new' }}">
                     {{ status_labels.get(topic.status, 'Nowy') }}
                 </span>
+                {% if topic.replies and topic.replies|selectattr('is_solution')|list %}
+                <span class="topic-badge" style="background: #dcfce7; color: #166534; border: 1px solid #86efac;">✓ Rozwiązanie</span>
+                {% endif %}
                 {{ topic.title }}
             </a>
             <div class="topic-meta">

templates/forum/topic.html

@@ -144,7 +144,126 @@
     .topic-content {
         line-height: 1.8;
         color: var(--text-primary);
-        white-space: pre-wrap;
+    }
+
+    /* Markdown styles */
+    .forum-quote {
+        border-left: 3px solid var(--primary);
+        background: var(--background);
+        padding: var(--spacing-sm) var(--spacing-md);
+        margin: var(--spacing-sm) 0;
+        font-style: italic;
+        color: var(--text-secondary);
+    }
+
+    .forum-list {
+        margin: var(--spacing-sm) 0;
+        padding-left: var(--spacing-xl);
+    }
+
+    .forum-list li {
+        margin: var(--spacing-xs) 0;
+    }
+
+    .forum-code {
+        background: var(--background);
+        padding: 2px 6px;
+        border-radius: 3px;
+        font-family: monospace;
+        font-size: 0.9em;
+    }
+
+    .forum-code-block {
+        background: #1e293b;
+        color: #e2e8f0;
+        padding: var(--spacing-md);
+        border-radius: var(--radius);
+        overflow-x: auto;
+        margin: var(--spacing-sm) 0;
+    }
+
+    .forum-code-block code {
+        font-family: monospace;
+        font-size: var(--font-size-sm);
+    }
+
+    .forum-link {
+        color: var(--primary);
+        text-decoration: underline;
+    }
+
+    .forum-mention {
+        background: #dbeafe;
+        color: #1e40af;
+        padding: 1px 4px;
+        border-radius: 3px;
+        font-weight: 500;
+    }
+
+    /* User stats tooltip */
+    .user-stats-trigger {
+        cursor: pointer;
+        position: relative;
+        font-weight: 500;
+    }
+
+    .user-stats-trigger:hover {
+        color: var(--primary);
+    }
+
+    .user-stats-tooltip {
+        position: absolute;
+        bottom: 100%;
+        left: 50%;
+        transform: translateX(-50%);
+        background: var(--card-bg, #fff);
+        border: 1px solid var(--border);
+        border-radius: var(--radius);
+        padding: 12px 16px;
+        min-width: 200px;
+        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
+        z-index: 1000;
+        font-size: 13px;
+        margin-bottom: 8px;
+    }
+
+    .user-stats-tooltip::after {
+        content: '';
+        position: absolute;
+        top: 100%;
+        left: 50%;
+        transform: translateX(-50%);
+        border: 6px solid transparent;
+        border-top-color: var(--border);
+    }
+
+    .user-stats-tooltip .stats-header {
+        font-weight: 600;
+        margin-bottom: 8px;
+        padding-bottom: 8px;
+        border-bottom: 1px solid var(--border);
+    }
+
+    .user-stats-tooltip .stats-grid {
+        display: grid;
+        grid-template-columns: 1fr 1fr;
+        gap: 6px;
+    }
+
+    .user-stats-tooltip .stat-item {
+        display: flex;
+        justify-content: space-between;
+        color: var(--text-secondary);
+    }
+
+    .user-stats-tooltip .stat-value {
+        font-weight: 600;
+        color: var(--text-primary);
+    }
+
+    .user-stats-tooltip .loading {
+        color: var(--text-secondary);
+        text-align: center;
     }
 
     /* Attachments */
@@ -865,7 +984,9 @@
                 <path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"></path>
                 <circle cx="12" cy="7" r="4"></circle>
             </svg>
-            {{ topic.author.name or topic.author.email.split('@')[0] }}
+            <span class="user-stats-trigger" data-user-id="{{ topic.author_id }}">
+                {{ topic.author.name or topic.author.email.split('@')[0] }}
+            </span>
             {% if topic.is_ai_generated %}
             <span class="ai-indicator" title="Wygenerowano przez AI">
                 <svg viewBox="0 0 24 24" fill="currentColor"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z"/></svg>
@@ -895,7 +1016,7 @@
         </button>
     </div>
 
-    <div class="topic-content" id="topicContent">{{ topic.content }}</div>
+    <div class="topic-content" id="topicContent">{{ topic.content|forum_markdown }}</div>
 
     <!-- Reactions bar for topic -->
     <div class="reactions-bar" id="topicReactions" data-content-type="topic" data-content-id="{{ topic.id }}">
@@ -954,7 +1075,9 @@
                     <div class="reply-avatar">
                         {{ (reply.author.name or reply.author.email)[0].upper() }}
                     </div>
-                    {{ reply.author.name or reply.author.email.split('@')[0] }}
+                    <span class="user-stats-trigger" data-user-id="{{ reply.author_id }}">
+                        {{ reply.author.name or reply.author.email.split('@')[0] }}
+                    </span>
                     {% if reply.is_ai_generated %}
                     <span class="ai-indicator" title="Wygenerowano przez AI">
                         <svg viewBox="0 0 24 24" fill="currentColor"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z"/></svg>
@@ -995,7 +1118,7 @@
             {% if reply.is_deleted %}
             <div class="reply-content deleted-notice">[Ta odpowiedź została usunięta]</div>
             {% else %}
-            <div class="reply-content">{{ reply.content }}</div>
+            <div class="reply-content">{{ reply.content|forum_markdown }}</div>
 
             {% if reply.attachments %}
             <div class="reply-attachments-container">
@@ -1039,6 +1162,10 @@
                     Usuń
                 </button>
                 {% endif %}
+                <button type="button" class="action-btn" onclick="quoteReply('{{ reply.author.name or reply.author.email.split('@')[0] }}', document.querySelector('#reply-{{ reply.id }} .reply-content').innerText)">
+                    <svg fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24" width="14" height="14"><path d="M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z"/></svg>
+                    Cytuj
+                </button>
                 <button type="button" class="action-btn" onclick="openReportModal('reply', {{ reply.id }})">
                     <svg fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24" width="14" height="14"><path d="M3 21v-4m0 0V5a2 2 0 012-2h6.5l1 1H21l-3 6 3 6h-8.5l-1-1H5a2 2 0 00-2 2zm9-13.5V9"/></svg>
                     Zgłoś
@@ -1065,6 +1192,9 @@
     <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
     <h3>Dodaj odpowiedź</h3>
     <textarea name="content" id="replyContent" placeholder="Twoja odpowiedź..." required></textarea>
+    <div style="font-size: var(--font-size-xs); color: var(--text-muted); margin-top: var(--spacing-xs);">
+        Formatowanie: **pogrubienie**, *kursywa*, `kod`, [link](url), @wzmianka, > cytat
+    </div>
 
     <div class="upload-counter" id="uploadCounter"></div>
     <div class="upload-previews-container" id="previewsContainer"></div>
@@ -1237,6 +1367,95 @@
         container.appendChild(toast);
         setTimeout(() => { toast.style.animation = 'toastOut 0.3s ease forwards'; setTimeout(() => toast.remove(), 300); }, duration);
     }
+
+    // User stats tooltip
+    const userStatsCache = {};
+    let activeTooltip = null;
+
+    document.querySelectorAll('.user-stats-trigger').forEach(trigger => {
+        let hoverTimeout = null;
+
+        trigger.addEventListener('mouseenter', function() {
+            const userId = this.dataset.userId;
+            hoverTimeout = setTimeout(() => showUserStats(this, userId), 500);
+        });
+
+        trigger.addEventListener('mouseleave', function() {
+            clearTimeout(hoverTimeout);
+            setTimeout(() => {
+                if (activeTooltip && !activeTooltip.matches(':hover')) {
+                    activeTooltip.remove();
+                    activeTooltip = null;
+                }
+            }, 200);
+        });
+    });
+
+    async function showUserStats(element, userId) {
+        // Remove any existing tooltip
+        if (activeTooltip) {
+            activeTooltip.remove();
+        }
+
+        // Create tooltip
+        const tooltip = document.createElement('div');
+        tooltip.className = 'user-stats-tooltip';
+        tooltip.innerHTML = '<div class="loading">Ładowanie...</div>';
+        element.appendChild(tooltip);
+        activeTooltip = tooltip;
+
+        // Check cache
+        if (userStatsCache[userId]) {
+            renderStats(tooltip, userStatsCache[userId]);
+            return;
+        }
+
+        // Fetch stats
+        try {
+            const response = await fetch(`/forum/user/${userId}/stats`);
+            const data = await response.json();
+            if (data.success) {
+                userStatsCache[userId] = data;
+                renderStats(tooltip, data);
+            } else {
+                tooltip.innerHTML = '<div class="loading">Błąd</div>';
+            }
+        } catch (e) {
+            tooltip.innerHTML = '<div class="loading">Błąd</div>';
+        }
+
+        // Close on mouse leave
+        tooltip.addEventListener('mouseleave', function() {
+            this.remove();
+            activeTooltip = null;
+        });
+    }
+
+    function renderStats(tooltip, data) {
+        const s = data.stats;
+        tooltip.innerHTML = `
+            <div class="stats-header">${data.user_name}</div>
+            <div class="stats-grid">
+                <div class="stat-item">
+                    <span>Tematy:</span>
+                    <span class="stat-value">${s.topics}</span>
+                </div>
+                <div class="stat-item">
+                    <span>Odpowiedzi:</span>
+                    <span class="stat-value">${s.replies}</span>
+                </div>
+                <div class="stat-item">
+                    <span>Rozwiązania:</span>
+                    <span class="stat-value">${s.solutions}</span>
+                </div>
+                <div class="stat-item">
+                    <span>Reakcje:</span>
+                    <span class="stat-value">${s.reactions_received}</span>
+                </div>
+            </div>
+        `;
+    }
+
     // Lightbox functions
     function openLightbox(src) {
         document.getElementById('lightboxImage').src = src;
@@ -1391,6 +1610,30 @@
     // USER ACTIONS: Subscribe, Reactions, Edit, Delete, Report
     // ============================================================
 
+    // Quote reply - insert quoted text into reply textarea
+    function quoteReply(author, content) {
+        const textarea = document.getElementById('replyContent');
+        if (!textarea) {
+            showToast('Temat jest zamknięty', 'warning');
+            return;
+        }
+
+        // Format quote with author
+        const quote = `> **${author}** napisał(a):\n> ${content.trim().replace(/\n/g, '\n> ')}\n\n`;
+
+        // Insert at cursor position or append
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const currentValue = textarea.value;
+
+        textarea.value = currentValue.substring(0, start) + quote + currentValue.substring(end);
+        textarea.focus();
+        textarea.selectionStart = textarea.selectionEnd = start + quote.length;
+
+        // Scroll to textarea
+        textarea.scrollIntoView({ behavior: 'smooth', block: 'center' });
+    }
+
     function toggleSubscribe(topicId) {
         const btn = document.getElementById('subscribeBtn');
         const isSubscribed = btn.classList.contains('subscribed');

utils/markdown.py

@@ -0,0 +1,126 @@
+"""
+Simple Markdown Parser for Forum
+================================
+
+Converts basic markdown to safe HTML.
+Supports: bold, italic, code, links, lists, quotes, @mentions
+"""
+
+import re
+from markupsafe import Markup, escape
+
+
+def parse_forum_markdown(text):
+    """
+    Convert markdown text to safe HTML.
+
+    Supported syntax:
+    - **bold** or __bold__
+    - *italic* or _italic_
+    - `inline code`
+    - [link text](url)
+    - - list items
+    - > quotes
+    - @mentions (highlighted)
+
+    Args:
+        text: Raw markdown text
+
+    Returns:
+        Markup object with safe HTML
+    """
+    if not text:
+        return Markup('')
+
+    # Escape HTML first for security
+    text = str(escape(text))
+
+    # Process line by line for block elements
+    lines = text.split('\n')
+    result_lines = []
+    in_list = False
+    in_quote = False
+
+    for line in lines:
+        stripped = line.strip()
+
+        # Quote blocks (> text)
+        if stripped.startswith('> '):  # Escaped >
+            if not in_quote:
+                result_lines.append('<blockquote class="forum-quote">')
+                in_quote = True
+            result_lines.append(stripped[5:])  # Remove &gt; prefix
+            continue
+        elif in_quote:
+            result_lines.append('</blockquote>')
+            in_quote = False
+
+        # List items (- text)
+        if stripped.startswith('- '):
+            if not in_list:
+                result_lines.append('<ul class="forum-list">')
+                in_list = True
+            result_lines.append(f'<li>{stripped[2:]}</li>')
+            continue
+        elif in_list:
+            result_lines.append('</ul>')
+            in_list = False
+
+        result_lines.append(line)
+
+    # Close open blocks
+    if in_list:
+        result_lines.append('</ul>')
+    if in_quote:
+        result_lines.append('</blockquote>')
+
+    text = '\n'.join(result_lines)
+
+    # Inline formatting (order matters!)
+
+    # Code blocks (``` ... ```)
+    text = re.sub(
+        r'```(.*?)```',
+        r'<pre class="forum-code-block"><code>\1</code></pre>',
+        text,
+        flags=re.DOTALL
+    )
+
+    # Inline code (`code`)
+    text = re.sub(r'`([^`]+)`', r'<code class="forum-code">\1</code>', text)
+
+    # Bold (**text** or __text__)
+    text = re.sub(r'\*\*([^*]+)\*\*', r'<strong>\1</strong>', text)
+    text = re.sub(r'__([^_]+)__', r'<strong>\1</strong>', text)
+
+    # Italic (*text* or _text_) - careful not to match bold
+    text = re.sub(r'(?<!\*)\*([^*]+)\*(?!\*)', r'<em>\1</em>', text)
+    text = re.sub(r'(?<!_)_([^_]+)_(?!_)', r'<em>\1</em>', text)
+
+    # Links [text](url) - only allow http/https
+    def safe_link(match):
+        link_text = match.group(1)
+        url = match.group(2)
+        if url.startswith(('http://', 'https://', '/')):
+            return f'<a href="{url}" target="_blank" rel="noopener noreferrer" class="forum-link">{link_text}</a>'
+        return match.group(0)  # Return original if not safe
+
+    text = re.sub(r'\[([^\]]+)\]\(([^)]+)\)', safe_link, text)
+
+    # @mentions - highlight them
+    text = re.sub(
+        r'@([\w.\-]+)',
+        r'<span class="forum-mention">@\1</span>',
+        text
+    )
+
+    # Convert newlines to <br> (but not inside pre/blockquote)
+    # Simple approach: just convert \n to <br>
+    text = text.replace('\n', '<br>\n')
+
+    return Markup(text)
+
+
+def register_markdown_filter(app):
+    """Register the markdown filter with Flask app."""
+    app.jinja_env.filters['forum_markdown'] = parse_forum_markdown

utils/notifications.py

@@ -320,3 +320,70 @@ def create_forum_report_notification(admin_user_ids, report_id, content_type, re
             related_id=report_id,
             action_url='/admin/forum/reports'
         )
+
+
+def parse_mentions_and_notify(content, author_id, author_name, topic_id, content_type, content_id):
+    """
+    Parse @mentions in content and send notifications.
+
+    Supports formats:
+    - @jan.kowalski (name with dots)
+    - @jan_kowalski (name with underscores)
+    - @jankowalski (name without separators)
+
+    Args:
+        content: Text content to parse
+        author_id: ID of the content author (won't be notified)
+        author_name: Name of the author
+        topic_id: ID of the topic
+        content_type: 'topic' or 'reply'
+        content_id: ID of the content
+
+    Returns:
+        List of mentioned user IDs
+    """
+    import re
+
+    # Find all @mentions (letters, numbers, dots, underscores, hyphens)
+    mentions = re.findall(r'@([\w.\-]+)', content)
+    if not mentions:
+        return []
+
+    db = SessionLocal()
+    try:
+        mentioned_user_ids = []
+
+        for mention in set(mentions):  # Unique mentions
+            # Try to find user by name (case-insensitive)
+            mention_lower = mention.lower()
+
+            # Try exact name match
+            user = db.query(User).filter(
+                User.is_active == True,
+                User.id != author_id
+            ).filter(
+                (User.name.ilike(mention)) |
+                (User.name.ilike(mention.replace('.', ' '))) |
+                (User.name.ilike(mention.replace('_', ' '))) |
+                (User.email.ilike(f'{mention}@%'))
+            ).first()
+
+            if user:
+                mentioned_user_ids.append(user.id)
+                create_notification(
+                    user_id=user.id,
+                    title=f"@{author_name} wspomniał o Tobie",
+                    message=f"Zostałeś wspomniany w {'odpowiedzi' if content_type == 'reply' else 'temacie'} na forum",
+                    notification_type='message',
+                    related_type=f'forum_{content_type}',
+                    related_id=content_id,
+                    action_url=f'/forum/{topic_id}{"#reply-" + str(content_id) if content_type == "reply" else ""}'
+                )
+
+        return mentioned_user_ids
+
+    except Exception as e:
+        logger.error(f"Error parsing mentions: {e}")
+        return []
+    finally:
+        db.close()