‫Business Rules and Use Cases در DDD

public sealed class DepositUseCase : IDepositUseCase
{
    private readonly IAccountReadOnlyRepository _accountReadOnlyRepository;
    private readonly IAccountWriteOnlyRepository _accountWriteOnlyRepository;

    public DepositUseCase(
        IAccountReadOnlyRepository accountReadOnlyRepository,
        IAccountWriteOnlyRepository accountWriteOnlyRepository)
    {
        _accountReadOnlyRepository = accountReadOnlyRepository;
        _accountWriteOnlyRepository = accountWriteOnlyRepository;
    }

    public async Task<DepositOutput> Execute(Guid accountId, Amount amount)
    {
        Account account = await _accountReadOnlyRepository.Get(accountId);
        if (account == null)
            throw new AccountNotFoundException($"The account {accountId} does not exists or is already closed.");

        account.Deposit(amount);
        Credit credit = (Credit)account.GetLastTransaction();

        await _accountWriteOnlyRepository.Update(
            account,
            credit);

        DepositOutput output = new DepositOutput(
            credit,
            account.GetCurrentBalance());
        return output;
    }
}