ZIP 313 implementation (default fee)

Author: adityapk00

app/components/Send.js

@@ -184,6 +184,8 @@ function getSendManyJSON(sendPageState: SendPageState): [] {
       }
     })
   );
+  json.push(1); // minconf = 1
+  json.push(Utils.getDefaultFee()); // Control the default fee as well.
 
   console.log('Sending:');
   console.log(json);
@@ -229,7 +231,9 @@ const ConfirmModalInternal = ({
   openErrorModal,
   history
 }) => {
-  const sendingTotal = sendPageState.toaddrs.reduce((s, t) => parseFloat(s) + parseFloat(t.amount), 0.0) + 0.0001;
+  const sendingTotal =
+    sendPageState.toaddrs.reduce((s, t) => parseFloat(s) + parseFloat(t.amount), 0.0) +
+    Utils.getDefaultFee(info.latestBlock);
   const { bigPart, smallPart } = Utils.splitZecAmountIntoBigSmall(sendingTotal);
 
   const sendButton = () => {
@@ -301,7 +305,10 @@ const ConfirmModalInternal = ({
           ))}
         </div>
 
-        <ConfirmModalToAddr toaddr={{ to: 'Fee', amount: 0.0001, memo: null }} info={info} />
+        <ConfirmModalToAddr
+          toaddr={{ to: 'Fee', amount: Utils.getDefaultFee(info.latestBlock), memo: null }}
+          info={info}
+        />
 
         {info && info.disconnected && (
           <div className={[cstyles.red, cstyles.margintoplarge].join(' ')}>
@@ -443,7 +450,7 @@ export default class Send extends PureComponent<Props, SendState> {
   };
 
   setMaxAmount = (id: number, total: number) => {
-    const { sendPageState, setSendPageState } = this.props;
+    const { sendPageState, setSendPageState, info } = this.props;
 
     const newToAddrs = sendPageState.toaddrs.slice(0);
 
@@ -452,7 +459,7 @@ export default class Send extends PureComponent<Props, SendState> {
       .reduce((s, a) => parseFloat(s) + parseFloat(a.amount), 0);
 
     // Add Fee
-    totalOtherAmount += Utils.getDefaultFee();
+    totalOtherAmount += Utils.getDefaultFee(info.latestBlock);
 
     // Find the correct toAddr
     const toAddr = newToAddrs.find(a => a.id === id);

app/components/Transactions.js

@@ -15,7 +15,7 @@ import Utils from '../utils/utils';
 import AddressBook from './Addressbook';
 import routes from '../constants/routes.json';
 
-const TxModalInternal = ({ modalIsOpen, tx, closeModal, currencyName, zecPrice, setSendTo, history }) => {
+const TxModalInternal = ({ modalIsOpen, tx, info, closeModal, currencyName, zecPrice, setSendTo, history }) => {
   let txid = '';
   let type = '';
   let typeIcon = '';
@@ -54,7 +54,7 @@ const TxModalInternal = ({ modalIsOpen, tx, closeModal, currencyName, zecPrice,
   };
 
   const doReply = (address: string) => {
-    setSendTo(new ZcashURITarget(address, 0.0001, null));
+    setSendTo(new ZcashURITarget(address, Utils.getDefaultFee(info.latestBlock), null));
     closeModal();
 
     history.push(routes.SEND);
@@ -336,6 +336,7 @@ export default class Transactions extends Component<Props, State> {
         <TxModal
           modalIsOpen={modalIsOpen}
           tx={clickedTx}
+          info={info}
           closeModal={this.closeModal}
           currencyName={info.currencyName}
           zecPrice={info.zecPrice}

app/utils/utils.js

@@ -110,8 +110,12 @@ export default class Utils {
     return Utils.nextToAddrID++;
   }
 
-  static getDefaultFee(): number {
-    return 0.0001;
+  static getDefaultFee(height: number): number {
+    if (height > 1046400) {
+      return 0.00001;
+    } else {
+      return 0.0001;
+    }
   }
 
   static getDonationAddress(testnet: boolean): string {