updated estimate vote value calculation recipe

src/providers/hive/dhive.js

@@ -70,15 +70,24 @@ export const getFeedHistory = async () => {
   }
 };
 
+export const getCurrentMedianHistoryPrice = async () => {
+  try {
+    const feedHistory = await client.database.call('get_current_median_history_price');
+    return feedHistory;
+  } catch (error) {
+    return error;
+  }
+};
+
 export const fetchGlobalProps = async () => {
   let globalDynamic;
-  let feedHistory;
+  let medianHistory;
   let rewardFund;
 
   try {
     globalDynamic = await getDynamicGlobalProperties();
     await setCache('globalDynamic', globalDynamic);
-    feedHistory = await getFeedHistory();
+    medianHistory = await getCurrentMedianHistoryPrice();
     rewardFund = await getRewardFund();
   } catch (e) {
     return;
@@ -89,8 +98,8 @@ export const fetchGlobalProps = async () => {
       parseToken(get(globalDynamic, 'total_vesting_shares'))) *
     1e6;
   const hbdPrintRate = get(globalDynamic, 'hbd_print_rate');
-  const base = parseAsset(get(feedHistory, 'current_median_history.base')).amount;
+  const base = parseAsset(medianHistory.base).amount;
-  const quote = parseAsset(get(feedHistory, 'current_median_history.quote')).amount;
+  const quote = parseAsset(medianHistory.quote).amount;
   const fundRecentClaims = get(rewardFund, 'recent_claims');
   const fundRewardBalance = parseToken(get(rewardFund, 'reward_balance'));
   const globalProps = {

src/redux/reducers/accountReducer.ts

@@ -12,13 +12,35 @@ import {
   SET_GLOBAL_PROPS,
 } from '../constants/constants';
 
-const initialState = {
+
+export interface GlobalProps {
+  hivePerMVests:number;
+  base:number;
+  quote:number;
+  fundRecentClaims:number;
+  fundRewardBalance:number;
+  hbdPrintRate:number;
+}
+
+
+interface AccountState {
+  isFetching:boolean;
+  currentAccount: any;
+  otherAccounts: any[];
+  hasError: boolean;
+  errorMessage: string;
+  isLogingOut: boolean;
+  globalProps:GlobalProps|null;
+}
+
+const initialState: AccountState = {
   isFetching: null,
   otherAccounts: [],
   currentAccount: {},
   hasError: false,
   errorMessage: null,
   isLogingOut: false,
+  globalProps: null
 };
 
 export default function (state = initialState, action) {

src/utils/conversions.js

@@ -1,18 +0,0 @@
-export const vestsToHp = (vests, hivePerMVests) => {
-  if (!vests || !hivePerMVests) {
-    return 0;
-  }
-
-  return (vests / 1e6) * hivePerMVests;
-};
-
-export const vestsToRshares = (vests, votingPower, votePerc) => {
-  if (!vests || !votingPower || !votePerc) {
-    return 0;
-  }
-
-  const vestingShares = parseInt(vests * 1e6, 10);
-  const power = (votingPower * votePerc) / 1e4 / 50 + 1;
-
-  return (power * vestingShares) / 1e4;
-};

src/utils/conversions.ts

@@ -0,0 +1,17 @@
+export const vestsToHp = (vests, hivePerMVests) => {
+  if (!vests || !hivePerMVests) {
+    return 0;
+  }
+
+  return (vests / 1e6) * hivePerMVests;
+};
+
+export const vestsToRshares = (vests:number, votingPower:number, weight:number) => {
+  if (!vests || !votingPower || !weight) {
+    return 0;
+  }
+
+  const finalVest = vests * 1e6;
+  const power = (votingPower * weight / 10000) / 50
+  return (power * finalVest / 1000) 
+};

src/utils/vote.js

@@ -1,19 +0,0 @@
-import get from 'lodash/get';
-import parseToken from './parseToken';
-import { vestsToRshares } from './conversions';
-
-export const getEstimatedAmount = (account, globalProps, value = 1) => {
-  const { fundRecentClaims, fundRewardBalance, base, quote } = globalProps;
-  const votingPower = account.voting_power;
-  const totalVests =
-    parseToken(get(account, 'vesting_shares')) +
-    parseToken(get(account, 'received_vesting_shares')) -
-    parseToken(get(account, 'delegated_vesting_shares'));
-  const votePct = value * 10000;
-  const rShares = vestsToRshares(totalVests, votingPower, votePct);
-
-  const estimatedAmount = (rShares / fundRecentClaims) * fundRewardBalance * (base / quote);
-  return !Number.isFinite(estimatedAmount) || Number.isNaN(estimatedAmount)
-    ? '0.00000'
-    : estimatedAmount.toFixed(5);
-};

src/utils/vote.ts

@@ -0,0 +1,20 @@
+import parseToken from './parseToken';
+import { vestsToRshares } from './conversions';
+import { GlobalProps } from '../redux/reducers/accountReducer';
+
+export const getEstimatedAmount = (account, globalProps:GlobalProps, sliderValue:number = 1) => {
+
+  const { fundRecentClaims, fundRewardBalance, base, quote } = globalProps;
+  const votingPower:number = account.voting_power;
+  const totalVests =
+    parseToken(account.vesting_shares) +
+    parseToken(account.received_vesting_shares) -
+    parseToken(account.delegated_vesting_shares);
+  const weight = sliderValue * 10000;
+  const hbdMedian = base / quote;
+
+  const rShares = vestsToRshares(totalVests, votingPower, weight);
+  const estimatedAmount = rShares / fundRecentClaims * fundRewardBalance * hbdMedian;
+  return Number.isNaN(estimatedAmount) ? '0.00000' : estimatedAmount.toFixed(5);
+
+};