From: Christian Heller  {booking.date_string} {booking.description}{suffix}'
-            for booking_line in booking.lines:
+            for booking_line in booking.lines[1:]:
                 i += 1
                 if booking_line == '':
                     continue
                 suffix = f' {lines[i]}' if len(lines[i]) > 0 else ''
                 value = f' {booking_line[1]} {booking_line[2]}' if booking_line[1] else ''
                 lines[i] = f'{booking_line[0]}{value}{suffix}'
-            lines[i] = lines[i][:-len(line_sep)] + f'
'
+    header = 'ledger balance add free add structured
'
     footer = ''
 
     def do_POST(self):
         length = int(self.headers['content-length'])
         postvars = parse_qs(self.rfile.read(length).decode(), keep_blank_values=1)
-        lines = postvars['booking'][0].splitlines()
+        parsed_url = urlparse(self.path)
+
+        if '/add_structured' == parsed_url.path:
+            n_lines = int(len(postvars) / 4) 
+            date = postvars['date'][0] 
+            description = postvars['description'][0]
+            start_comment = postvars['line_0_comment'][0]
+            lines = [f'{date} {description} ; {start_comment}']
+            for i in range(1, n_lines):
+                account = postvars[f'line_{i}_account'][0]
+                amount = postvars[f'line_{i}_amount'][0]
+                currency = postvars[f'line_{i}_currency'][0]
+                comment = postvars[f'line_{i}_comment'][0]
+                new_main = f'{account} {amount} {currency}'
+                if '' == new_main.rstrip() == comment.rstrip():
+                    continue
+                lines += [f'{new_main} ; {comment}'] 
+        elif '/add_free' == parsed_url.path:
+            lines = postvars['booking'][0].splitlines()
         start = int(postvars['start'][0])
         end = int(postvars['end'][0])
         try:
@@ -262,33 +282,37 @@ class MyServer(BaseHTTPRequestHandler):
             if start == end == 0:
                 db.append(lines)
             else:
-                # raise HandledException(f'would write from {start} to {end}')
                 db.replace(start, end, lines)
             self.send_response(200)
             self.end_headers()
-            page = f"{self.header}Success!{self.footer}"
+            page = f'{self.header}Success!{self.footer}'
             self.wfile.write(bytes(page, "utf-8"))
         except HandledException as e:
             self.send_response(400)
             self.end_headers()
-            page = f"{self.header}{e}{self.footer}"
+            page = f'{self.header}{e}{self.footer}'
             self.wfile.write(bytes(page, "utf-8"))
 
     def do_GET(self):
-        from urllib.parse import urlparse
         self.send_response(200)
         self.send_header("Content-type", "text/html")
         self.end_headers()
         db = Database()
-        page = self.header + ''
         parsed_url = urlparse(self.path)
+        page = self.header + ''
         if parsed_url.path == '/balance':
             page += self.balance_as_html(db)
-        elif parsed_url.path == '/add':
+        elif parsed_url.path == '/add_free':
+            params = parse_qs(parsed_url.query)
+            start = int(params.get('start', ['0'])[0])
+            end = int(params.get('end', ['0'])[0])
+            page += self.add_free(db, start, end)
+        elif parsed_url.path == '/add_structured':
             params = parse_qs(parsed_url.query)
             start = int(params.get('start', ['0'])[0])
             end = int(params.get('end', ['0'])[0])
-            page += self.add(db, start, end)
+            bonus_lines = int(params.get('bonus_lines', ['0'])[0])
+            page += self.add_structured(db, start, end)
         else:
             page += self.ledger_as_html(db)
         page += self.footer
@@ -365,24 +389,61 @@ class MyServer(BaseHTTPRequestHandler):
             lines += [line + line_sep]
         for booking in db.bookings:
             i = booking.start_line
-            suffix = lines[i] # f" {lines[i]}" if len(lines[i]) > 0 else ""
+            suffix = lines[i]
             lines[i] = f'
'
+            lines[i] = lines[i][:-len(line_sep)] + f'