public void UpdateDatabase(IDataInteraction dataProvider, IOutputProvider outputProvider, ILogger logger, int sellerId, int buyerId, int shareId, decimal sharePrice, int purchaseQuantity)
{
try
{
if (sellerId == 0 || buyerId == 0 || shareId == 0 || sharePrice == 0 || purchaseQuantity == 0)
{
logger.Write("Incorrect data from randomizer");
throw new Exception("Incorrect data from randomizer");
}
var sellerToChange = dataProvider.GetTrader(sellerId);
if (sellerToChange != null)
{
sellerToChange.Balance += sharePrice * purchaseQuantity;
}
var buyerToChange = dataProvider.GetTrader(buyerId);
if (buyerToChange != null)
{
buyerToChange.Balance -= sharePrice * purchaseQuantity;
}
var sellerShareRecordToChange = dataProvider.GetPortfolio(sellerId, shareId);
if (sellerShareRecordToChange != null)
{
sellerShareRecordToChange.Quantity -= purchaseQuantity;
if (sellerShareRecordToChange.Quantity == 0)
{
#if DEBUG
outputProvider.WriteLine("Removed share record with 0 quantity");
#endif
logger.Write("Removed share record with 0 quantity");
dataProvider.RemovePortfolio(sellerShareRecordToChange);
}
}
if (dataProvider.GetPortfoliosCount(buyerId, shareId) > 0)
{
var buyerShareRecordToChange = dataProvider.GetPortfolio(buyerId, shareId);
if (buyerShareRecordToChange != null)
{
buyerShareRecordToChange.Quantity += purchaseQuantity;
}
}
else
{
#if DEBUG
outputProvider.WriteLine("Add new record to portfolio");
#endif
logger.Write("Add new record to portfolio");
dataProvider.AddPortfolio(buyerId, shareId, purchaseQuantity);
}
var transaction = dataProvider.AddTransaction(buyerId, sellerId, shareId, sharePrice, purchaseQuantity);
dataProvider.SaveChanges();
string message = "Buyer = " + transaction.BuyerId + " Seller = " + transaction.SellerId + " Share name = " + transaction.ShareId +
" Quantity = " + transaction.Quantity + " Price per share = " + transaction.PricePerShare +
" Transaction total = " + transaction.PricePerShare * transaction.Quantity + " Timestamp = " + transaction.DateTime;
outputProvider.WriteLine(message);
logger.Write(message);
}
catch (Exception e)
{
outputProvider.WriteLine(e.Message);
logger.Write(e.Message);
}
}