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Adjust taker_pays_funded

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This commit is contained in:
wltsmrz
2014-08-15 20:05:57 -07:00
parent 60069d0a28
commit 81283eeb84
2 changed files with 79 additions and 28 deletions
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61
src/js/ripple/orderbook.js
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@@ -284,10 +284,8 @@ OrderBook.prototype.applyTransferRate = function(balance, transferRate) {
return balance;
}
var adjustedBalance = Amount.from_json(balance
+ '/' + this._currencyGets.to_json()
+ '/' + this._issuerGets
)
var iouSuffix = '/USD/rrrrrrrrrrrrrrrrrrrrBZbvji';
var adjustedBalance = Amount.from_json(balance + iouSuffix)
.divide(transferRate)
.multiply(Amount.from_json(OrderBook.DEFAULT_TRANSFER_RATE))
.to_json()
@@ -352,22 +350,43 @@ OrderBook.prototype.setFundedAmount = function(offer, fundedAmount) {
assert.strictEqual(typeof offer, 'object', 'Offer is invalid');
assert(!isNaN(fundedAmount), 'Funds is invalid');
var iouSuffix = '/USD/rrrrrrrrrrrrrrrrrrrrBZbvji';
if (fundedAmount === '0') {
offer.taker_gets_funded = '0';
offer.taker_pays_funded = '0';
offer.is_fully_funded = false;
return offer;
}
var takerGetsValue = (typeof offer.TakerGets === 'object')
? offer.TakerGets.value
: offer.TakerGets;
var takerGets = Amount.from_json(takerGetsValue + iouSuffix);
var takerPaysValue = (typeof offer.TakerPays === 'object')
? offer.TakerPays.value
: offer.TakerPays;
offer.is_fully_funded = Amount.from_json(
fundedAmount + iouSuffix
).compareTo(takerGets) >= 0;
var iouSuffix = '/USD/rrrrrrrrrrrrrrrrrrrrBZbvji';
var fundedTakerGets = Amount.from_json(fundedAmount + iouSuffix);
var takerGets = Amount.from_json(takerGetsValue + iouSuffix);
var takerPays = Amount.from_json(takerPaysValue + iouSuffix);
offer.is_fully_funded = fundedTakerGets.compareTo(takerGets) >= 0;
if (offer.is_fully_funded) {
offer.taker_gets_funded = takerGetsValue;
offer.taker_pays_funded = takerPaysValue;
return offer;
}
offer.taker_gets_funded = fundedAmount;
var rate = Amount.from_json(offer.TakerPays).divide(offer.TakerGets);
var takerPaysFunded = fundedTakerGets.multiply(rate);
if (takerPaysFunded.compareTo(takerPays) <= 0) {
offer.taker_pays_funded = takerPaysFunded.to_text();
} else {
offer.taker_gets_funded = fundedAmount;
offer.taker_pays_funded = takerPaysValue;
}
return offer;
@@ -882,15 +901,25 @@ OrderBook.prototype.updateOfferFunds = function(account, fundedAmount) {
for (var i=0; i<this._offers.length; i++) {
var offer = this._offers[i];
if (offer.Account === account) {
// Update funds for account's offer
var previousOffer = extend({}, offer);
var previousAmount = offer.taker_gets_funded;
if (offer.Account !== account) {
continue;
}
this.setFundedAmount(offer, fundedAmount);
var previousOffer = extend({}, offer);
var previousFundedGets = Amount.from_json(offer.taker_gets_funded);
this.setFundedAmount(offer, fundedAmount);
var hasChangedFunds = !previousFundedGets.equals(
Amount.from_json(offer.taker_gets_funded));
if (hasChangedFunds) {
this.emit('offer_changed', previousOffer, offer);
this.emit('offer_funds_changed', offer, previousAmount, fundedAmount);
this.emit(
'offer_funds_changed', offer,
previousOffer.taker_gets_funded,
fundedAmount
);
}
}
};