undoLastAction method

@override Future<void> undoLastAction()

Undoes the last added point and removes the corresponding circle.

Implementation

@override
Future<void> undoLastAction() async {
  if (_linePoints.isEmpty || _controller.isLoading) return;

  _controller._setLoading(true);
  _linePoints.removeLast();
  _controller.notifyListeners();

  try {
    // Remove the last circle annotation
    if (_circleAnnotations.isNotEmpty) {
      final lastCircle = _circleAnnotations.removeLast();
      await _circleAnnotationManager!.delete(lastCircle);
    }

    if (_linePoints.length >= 2) {
      // Update the line with the remaining points
      _currentLine?.geometry = LineString.fromPoints(points: _linePoints);
      await _polylineAnnotationManager!.update(_currentLine!);
    } else {
      // If less than 2 points, remove the line completely
      if (_currentLine != null) {
        await _polylineAnnotationManager!.delete(_currentLine!);
        _currentLine = null;
      }
    }

    _controller.notifyListeners();
  } catch (e) {
    print('Error undoing last line point: $e');
  } finally {
    _controller._setLoading(false);
  }
}