public int Deposit(int accountId, decimal amount)
        {
            if (amount > 0)
            {
                Account account = accountQueriesHandler.GetAccount(accountId);

                if (account != null)
                {
                    account.Balance += amount;
                    context.Update(account);
                    context.SaveChanges();

                    transactionCommandsHandler.CreateTransaction(accountId, amount, account.Balance, "Deposit", "Credit");

                    return(1);
                }
            }

            return(-1);
        }