private void SaveExerciseButton_Click(object sender, RoutedEventArgs e)
{
var saveFileDialog = new SaveFileDialog {
Filter = "FEN files (*.fen)|*.fen"
};
if (saveFileDialog.ShowDialog() == true)
{
var fen = GameController.GetFen();
var filename = saveFileDialog.FileName;
File.WriteAllText(filename, fen);
var keywordWindow = new KeywordWindow();
keywordWindow.ShowDialog();
var keywords = keywordWindow.Keywords;
Index.AddFile(filename, keywords);
ExerciseManager.AddExercise(filename, keywords);
}
}