@PatchMapping("/{customerId}/deposit/{amount}")
    public CustomerDto depositMoneyToCustomerAccount(@PathVariable("customerId") Long customerId, @PathVariable("amount") Float amount) {
        return customerToCustomerDto.convert(
                customerService.depositMoney(customerId, amount)
        );
    }

@Transactional
    public Customer depositMoney(Long customerId, Float amount) {
        Customer customer = customerRepository.findById(customerId)
                .orElseThrow(ResourceNotFoundException::new);

        customer.depositBalance(amount);

        return customerRepository.save(customer);
    }