pie chart next to logbook

app.py

@@ -406,10 +406,75 @@ def task_detail(task_id):
 @app.route('/logbook')
 def logbook():
     if not is_logged_in(): return redirect(url_for('login'))
+    user_id = get_user_id()
     
+    # --- Statistics Logic ---
+    time_range = request.args.get('range', '24h')
+    now = datetime.now()
+    
+    if time_range == '24h':
+        start_date = now - timedelta(hours=24)
+    elif time_range == 'week':
+        start_date = now - timedelta(days=7)
+    elif time_range == 'month':
+        start_date = now - timedelta(days=30)
+    elif time_range == 'year':
+        start_date = now - timedelta(days=365)
+    else:
+        start_date = now - timedelta(hours=24)
+
+    # Calculate sums per activity
+    pipeline_stats = [
+        {'$match': {
+            'user_id': user_id, 
+            'end_time': {'$ne': None},
+            'start_time': {'$gte': start_date}
+        }},
+        {'$project': {
+            'activity_id': 1,
+            'duration': {'$subtract': ['$end_time', '$start_time']}
+        }},
+        {'$group': {
+            '_id': '$activity_id',
+            'total_ms': {'$sum': '$duration'}
+        }}
+    ]
+    
+    stats_raw = list(db.time_entries.aggregate(pipeline_stats))
+    
+    chart_data = {
+        'labels': [],
+        'chart_values': [], # Renamed from 'values' to avoid method conflict
+        'colors': []
+    }
+    
+    total_ms_all = 0
+
+    for s in stats_raw:
+        # Sum total for all activities
+        total_ms_all += s['total_ms']
+        
+        act = db.activities.find_one({'_id': s['_id']})
+        if act:
+            chart_data['labels'].append(act['name'])
+            chart_data['colors'].append(act.get('color', '#ccc'))
+            # Convert milliseconds to hours
+            hours = s['total_ms'] / (1000 * 60 * 60)
+            chart_data['chart_values'].append(round(hours, 2))
+    
+    # Format total time display
+    if total_ms_all > 0:
+        total_hours_val = total_ms_all / (1000 * 60 * 60)
+        # If less than 1 hour, show minutes? Or just 0.Xh? 
+        # Keeps consistency with pie chart to use hours, but let's make it look nice.
+        total_time_display = f"{round(total_hours_val, 1)}h"
+    else:
+        total_time_display = "0h"
+
+    # --- Existing Logbook Logic ---
     # Agrregation to join activities and tasks
     pipeline = [
-        {'$match': {'user_id': get_user_id(), 'end_time': {'$ne': None}}},
+        {'$match': {'user_id': user_id, 'end_time': {'$ne': None}}},
         {'$sort': {'start_time': -1}},
         {'$lookup': {
             'from': 'activities',
@@ -436,7 +501,7 @@ def logbook():
         duration = entry['end_time'] - entry['start_time']
         entry['duration_str'] = str(duration).split('.')[0] # HH:MM:SS
         
-    return render_template('logbook.html', log=log)
+    return render_template('logbook.html', log=log, chart_data=chart_data, current_range=time_range, total_time_display=total_time_display)
 
 @app.route('/logbook/<entry_id>', methods=['GET', 'POST'])
 def log_entry_detail(entry_id):