/** Decide if should show errors in the UI. */
private boolean shouldShowErrors(boolean isTyping, Value amount) {
if (amount != null && !amount.isZero() && !isAmountWithinLimits(amount)) {
return true;
}
if (isTyping) return false;
if (amountCalculatorLink.isEmpty()) return false;
if (amount != null && amount.isZero()) return false;
return true;
}
/** Get the lowest deposit or withdraw for the provided amount type */
private Value getLowestAmount(ValueType type) {
Value min = type.minNonDust();
if (marketInfo != null) {
if (marketInfo.minimum.isOfType(min)) {
min = Value.max(marketInfo.minimum, min);
} else if (marketInfo.rate.canConvert(type, marketInfo.minimum.type)) {
min = Value.max(marketInfo.rate.convert(marketInfo.minimum), min);
}
}
return min;
}
/**
* Check if amount is within the minimum and maximum deposit limits and if is dust or if is more
* money than currently in the wallet
*/
private boolean isAmountWithinLimits(Value amount) {
boolean isWithinLimits = amount != null && amount.isPositive() && !amount.isDust();
// Check if within min & max deposit limits
if (isWithinLimits && marketInfo != null && canCompare(marketInfo.limit, amount)) {
isWithinLimits = amount.within(marketInfo.minimum, marketInfo.limit);
}
// Check if we have the amount
if (isWithinLimits && canCompare(lastBalance, amount)) {
isWithinLimits = amount.compareTo(lastBalance) <= 0;
}
return isWithinLimits;
}
private void validateAmount(boolean isTyping) {
Value amountParsed = amountCalculatorLink.getPrimaryAmount();
if (isAmountValid(amountParsed)) {
sendAmount = amountParsed;
amountError.setVisibility(View.GONE);
// Show warning that fees apply when entered the full amount inside the pocket
if (canCompare(sendAmount, lastBalance) && sendAmount.compareTo(lastBalance) == 0) {
amountWarning.setText(R.string.amount_warn_fees_apply);
amountWarning.setVisibility(View.VISIBLE);
} else {
amountWarning.setVisibility(View.GONE);
}
} else {
amountWarning.setVisibility(View.GONE);
// ignore printing errors for null and zero amounts
if (shouldShowErrors(isTyping, amountParsed)) {
sendAmount = null;
if (amountParsed == null) {
amountError.setText(R.string.amount_error);
} else if (amountParsed.isNegative()) {
amountError.setText(R.string.amount_error_negative);
} else if (!isAmountWithinLimits(amountParsed)) {
String message = getString(R.string.error_generic);
// If the amount is dust or lower than the deposit limit
if (isAmountTooSmall(amountParsed)) {
Value minAmount = getLowestAmount(amountParsed.type);
message = getString(R.string.amount_error_too_small, minAmount.toFriendlyString());
} else {
// If we have the amount
if (canCompare(lastBalance, amountParsed) && amountParsed.compareTo(lastBalance) > 0) {
message =
getString(R.string.amount_error_not_enough_money, lastBalance.toFriendlyString());
}
if (marketInfo != null
&& canCompare(marketInfo.limit, amountParsed)
&& amountParsed.compareTo(marketInfo.limit) > 0) {
message =
getString(R.string.trade_error_max_limit, marketInfo.limit.toFriendlyString());
}
}
amountError.setText(message);
} else { // Should not happen, but show a generic error
amountError.setText(R.string.amount_error);
}
amountError.setVisibility(View.VISIBLE);
} else {
amountError.setVisibility(View.GONE);
}
}
updateView();
}
private void setAmountForEmptyWallet() {
updateBalance();
if (state != State.INPUT || pocket == null || lastBalance == null) return;
if (lastBalance.isZero()) {
String message = getResources().getString(R.string.amount_error_not_enough_money_plain);
Toast.makeText(getActivity(), message, Toast.LENGTH_LONG).show();
} else {
amountCalculatorLink.setPrimaryAmount(lastBalance);
validateAmount();
}
}
public void onMakeTransaction(Address toAddress, Value amount, @Nullable TxMessage txMessage) {
Intent intent = new Intent(getActivity(), SignTransactionActivity.class);
// Decide if emptying wallet or not
if (canCompare(lastBalance, amount) && amount.compareTo(lastBalance) == 0) {
intent.putExtra(Constants.ARG_EMPTY_WALLET, true);
} else {
intent.putExtra(Constants.ARG_SEND_VALUE, amount);
}
intent.putExtra(Constants.ARG_ACCOUNT_ID, pocket.getId());
intent.putExtra(Constants.ARG_SEND_TO_ADDRESS, toAddress);
if (txMessage != null) intent.putExtra(Constants.ARG_TX_MESSAGE, txMessage);
startActivityForResult(intent, SIGN_TRANSACTION);
state = State.INPUT;
}
/** Check if amount is smaller than the dust limit or if applicable, the minimum deposit. */
private boolean isAmountTooSmall(Value amount) {
return amount.compareTo(getLowestAmount(amount.type)) < 0;
}