/**
* Get billing history
*
* @param card
* @param limit
* @param start
* @return
*/
public String getHistory(Card card, Integer limit, Integer start) {
this.currentCard = card;
JSONObject json = new JSONObject();
List<Invoice> history = invoiceService.getIncome(currentCard);
history.addAll(invoiceService.getOutcome(currentCard));
try {
json.put("total", history.size());
for (int i = start; i <= start + limit && i < history.size(); i++) {
json.accumulate("history", history.get(i).toJson());
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return json.toString();
}
/**
* Pay
*
* @param amount
* @param to
* @param r
* @return
*/
public String pay(Double amount, Integer to, HttpServletRequest r) {
JSONObject json = new JSONObject();
double currentAmount = currentCard.getAmount();
if (currentAmount < amount) {
try {
json.put("sucess", false);
json.put("result", "No enough money.Choose anothe opperation.");
} catch (JSONException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
} else {
currentCard.setAmount(currentAmount - amount);
Invoice invoice = currentCard.createInvoice();
invoice.setToCard(to);
invoice.setAmount(amount);
String date =
new SimpleDateFormat("dd.MM.yyyy-hh.mm-a")
.format(GregorianCalendar.getInstance().getTime());
invoice.setDate(date);
invoice.setCurrency(currentCard.getCurrency());
invoiceService.addInvoice(invoice);
try {
json.put("success", true);
} catch (JSONException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
}
cardService.update(currentCard);
r.getSession().setAttribute("Card", currentCard);
return json.toString();
}
/**
* Transfer money from current to another card
*
* @param destCardId
* @param amount
* @param r
* @return result in JSON format
*/
@Transactional
public String transferMoney(Integer destCardId, double amount, HttpServletRequest r) {
Card toCard = cardService.getCard(destCardId);
double currentAmount = currentCard.getAmount();
JSONObject json = new JSONObject();
if (currentAmount < amount) {
try {
json.put("sucess", false);
json.put("result", "Недостаточно средств.");
} catch (JSONException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
} else {
currentCard.setAmount(currentAmount - amount);
double newAmount = converter.convert(currentCard.getCurrency(), toCard.getCurrency(), amount);
toCard.setAmount(toCard.getAmount() + newAmount);
Invoice invoice = currentCard.createInvoice();
invoice.setToCard(destCardId);
invoice.setAmount(newAmount);
String date =
new SimpleDateFormat("dd.MM.yyyy-hh.mm-a")
.format(GregorianCalendar.getInstance().getTime());
invoice.setDate(date);
invoice.setCurrency(toCard.getCurrency());
invoiceService.addInvoice(invoice);
try {
json.put("sucess", true);
json.put("result", "Успешно.");
} catch (JSONException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
}
cardService.update(currentCard);
r.getSession().setAttribute("Card", currentCard);
cardService.update(toCard);
return json.toString();
}
