@Override
protected JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
DigitalGoodsStore.Goods goods = ParameterParser.getGoods(req);
if (goods.isDelisted()) {
return UNKNOWN_GOODS;
}
int quantity = ParameterParser.getGoodsQuantity(req);
if (quantity > goods.getQuantity()) {
return INCORRECT_PURCHASE_QUANTITY;
}
long priceNQT = ParameterParser.getPriceNQT(req);
if (priceNQT != goods.getPriceNQT()) {
return INCORRECT_PURCHASE_PRICE;
}
String deliveryDeadlineString =
Convert.emptyToNull(req.getParameter("deliveryDeadlineTimestamp"));
if (deliveryDeadlineString == null) {
return MISSING_DELIVERY_DEADLINE_TIMESTAMP;
}
int deliveryDeadline;
try {
deliveryDeadline = Integer.parseInt(deliveryDeadlineString);
if (deliveryDeadline <= Nxt.getEpochTime()) {
return INCORRECT_DELIVERY_DEADLINE_TIMESTAMP;
}
} catch (NumberFormatException e) {
return INCORRECT_DELIVERY_DEADLINE_TIMESTAMP;
}
Account buyerAccount = ParameterParser.getSenderAccount(req);
Account sellerAccount = Account.getAccount(goods.getSellerId());
Attachment attachment =
new Attachment.DigitalGoodsPurchase(goods.getId(), quantity, priceNQT, deliveryDeadline);
try {
return createTransaction(req, buyerAccount, sellerAccount.getId(), 0, attachment);
} catch (NxtException.InsufficientBalanceException e) {
return JSONResponses.NOT_ENOUGH_FUNDS;
}
}
