public async Task ChangeExpenseAsync(int buildingId, int expenseId, ExpenseRequest newExpense)
        {
            var expense = newExpense.ToDTO();

            expense.ExpenseId  = expenseId;
            expense.BuildingId = buildingId;
            await _expenseManager.UpdateExpenseAsync(expense);
        }
        public async Task <int> CreateExpenseAsync(int buildingId, ExpenseRequest newExpense)
        {
            var expense = newExpense.ToDTO();

            expense.BuildingId = buildingId;
            await _expenseManager.AddExpenseAsync(expense);

            return(expense.ExpenseId);
        }