fix feeDeposit/max_fee corner case

src/cryptoLib.ts

@@ -173,8 +173,16 @@ namespace RpcFunctions {
   export function signDeposit(offer: OfferRecord,
                               cds: CoinWithDenom[]): PayCoinInfo {
     let ret: PayCoinInfo = [];
+
+
+    let feeList: AmountJson[] = cds.map((x) => x.denom.feeDeposit);
+    let fees = Amounts.add(Amounts.getZero(feeList[0].currency), ...feeList).amount;
+    // okay if saturates
+    fees = Amounts.sub(fees, offer.contract.max_fee).amount;
+    let total = Amounts.add(fees, offer.contract.amount).amount;
+
     let amountSpent = native.Amount.getZero(cds[0].coin.currentAmount.currency);
-    let amountRemaining = new native.Amount(offer.contract.amount);
+    let amountRemaining = new native.Amount(total);
     for (let cd of cds) {
       let coinSpend: Amount;
 
@@ -191,6 +199,14 @@ namespace RpcFunctions {
       amountSpent.add(coinSpend);
       amountRemaining.sub(coinSpend);
 
+      let feeDeposit: Amount = new native.Amount(cd.denom.feeDeposit);
+
+      // Give the merchant at least the deposit fee, otherwise it'll reject
+      // the coin.
+      if (coinSpend.cmp(feeDeposit) < 0) {
+        coinSpend = feeDeposit;
+      }
+
       let newAmount = new native.Amount(cd.coin.currentAmount);
       newAmount.sub(coinSpend);
       cd.coin.currentAmount = newAmount.toJson();
@@ -342,4 +358,4 @@ namespace RpcFunctions {
     const b = native.ByteArray.fromStringWithNull(str);
     return b.hash().toCrock();
   }
-}
+}

src/pages/tree.tsx

@@ -124,6 +124,8 @@ class CoinView extends React.Component<CoinViewProps, void> {
           <li>Current amount: {prettyAmount(c.currentAmount)}</li>
           <li>Denomination: <ExpanderText text={c.denomPub} /></li>
           <li>Suspended: {(c.suspended || false).toString()}</li>
+          <li>Dirty: {(c.dirty || false).toString()}</li>
+          <li>Transaction Pending: {(c.transactionPending || false).toString()}</li>
           <li><RefreshDialog coin={c} /></li>
         </ul>
       </div>

src/wallet.ts

@@ -632,6 +632,9 @@ export class Wallet {
                                             offer.contract.max_fee,
                                             offer.contract.exchanges);
 
+    console.log("max_fee", offer.contract.max_fee);
+    console.log("coin selection result", res);
+
     if (!res) {
       console.log("not confirming payment, insufficient coins");
       return {
@@ -1172,7 +1175,7 @@ export class Wallet {
                          (e) => e.exchangeBaseUrl)
           .reduce((cd: JoinLeftResult<CoinRecord,DenominationRecord>,
                    suspendedCoins: CoinRecord[]) => {
-            if (!cd.right || !cd.right.isOffered) {
+            if ((!cd.right) || (!cd.right.isOffered)) {
               return Array.prototype.concat(suspendedCoins, [cd.left]);
             }
             return Array.prototype.concat(suspendedCoins);
@@ -1243,12 +1246,14 @@ export class Wallet {
     );
 
     const newDenoms: typeof existingDenoms = {};
+    const newAndUnseenDenoms: typeof existingDenoms = {};
 
     for (let d of newKeys.denoms) {
+      let dr = denominationRecordFromKeys(exchangeInfo.baseUrl, d);
       if (!(d.denom_pub in existingDenoms)) {
-        let dr = denominationRecordFromKeys(exchangeInfo.baseUrl, d);
-        newDenoms[dr.denomPub] = dr;
+        newAndUnseenDenoms[dr.denomPub] = dr;
       }
+      newDenoms[dr.denomPub] = dr;
     }
 
     for (let oldDenomPub in existingDenoms) {
@@ -1260,7 +1265,7 @@ export class Wallet {
 
     await this.q()
               .putAll(Stores.denominations,
-                      Object.keys(newDenoms).map((d) => newDenoms[d]))
+                      Object.keys(newAndUnseenDenoms).map((d) => newAndUnseenDenoms[d]))
               .putAll(Stores.denominations,
                       Object.keys(existingDenoms).map((d) => existingDenoms[d]))
               .finish();

tsconfig.json

@@ -45,12 +45,12 @@
     "src/background/background.ts",
     "src/content_scripts/notify.ts",
     "src/emscripten/taler-emscripten-lib.d.ts",
+    "src/popup/popup.tsx",
     "src/pages/show-db.ts",
     "src/pages/confirm-contract.tsx",
     "src/pages/confirm-create-reserve.tsx",
     "src/pages/error.tsx",
     "src/pages/logs.tsx",
-    "src/pages/tree.tsx",
-    "src/popup/popup.tsx"
+    "src/pages/tree.tsx"
   ]
 }