From 22aad392435e79d2f60f22262992aa0285ec2127 Mon Sep 17 00:00:00 2001
From: unknown <scottymitch88@gmail.com>
Date: Tue, 16 May 2023 10:43:30 -0400
Subject: [PATCH 1/3] Add conversion rate

---
 .../src/constants/mainnetAbi/sfrxeth.json     | 472 ++++++++++++++++++
 dapp-oeth/src/hooks/useSwapEstimator.js       |  29 +-
 dapp-oeth/src/utils/contracts.js              |   3 +-
 3 files changed, 494 insertions(+), 10 deletions(-)
 create mode 100644 dapp-oeth/src/constants/mainnetAbi/sfrxeth.json

diff --git a/dapp-oeth/src/constants/mainnetAbi/sfrxeth.json b/dapp-oeth/src/constants/mainnetAbi/sfrxeth.json
new file mode 100644
index 0000000000..772ab0bab7
--- /dev/null
+++ b/dapp-oeth/src/constants/mainnetAbi/sfrxeth.json
@@ -0,0 +1,472 @@
+[
+  {
+    "inputs": [
+      {
+        "internalType": "contract ERC20",
+        "name": "_underlying",
+        "type": "address"
+      },
+      {
+        "internalType": "uint32",
+        "name": "_rewardsCycleLength",
+        "type": "uint32"
+      }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  { "inputs": [], "name": "SyncError", "type": "error" },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "spender",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "Approval",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "caller",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "assets",
+        "type": "uint256"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "shares",
+        "type": "uint256"
+      }
+    ],
+    "name": "Deposit",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "uint32",
+        "name": "cycleEnd",
+        "type": "uint32"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "rewardAmount",
+        "type": "uint256"
+      }
+    ],
+    "name": "NewRewardsCycle",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "from",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "Transfer",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "caller",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "receiver",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "assets",
+        "type": "uint256"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "shares",
+        "type": "uint256"
+      }
+    ],
+    "name": "Withdraw",
+    "type": "event"
+  },
+  {
+    "inputs": [],
+    "name": "DOMAIN_SEPARATOR",
+    "outputs": [{ "internalType": "bytes32", "name": "", "type": "bytes32" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "", "type": "address" },
+      { "internalType": "address", "name": "", "type": "address" }
+    ],
+    "name": "allowance",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "spender", "type": "address" },
+      { "internalType": "uint256", "name": "amount", "type": "uint256" }
+    ],
+    "name": "approve",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "asset",
+    "outputs": [
+      { "internalType": "contract ERC20", "name": "", "type": "address" }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "name": "balanceOf",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" }
+    ],
+    "name": "convertToAssets",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" }
+    ],
+    "name": "convertToShares",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "decimals",
+    "outputs": [{ "internalType": "uint8", "name": "", "type": "uint8" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" },
+      { "internalType": "address", "name": "receiver", "type": "address" }
+    ],
+    "name": "deposit",
+    "outputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" },
+      { "internalType": "address", "name": "receiver", "type": "address" },
+      { "internalType": "uint256", "name": "deadline", "type": "uint256" },
+      { "internalType": "bool", "name": "approveMax", "type": "bool" },
+      { "internalType": "uint8", "name": "v", "type": "uint8" },
+      { "internalType": "bytes32", "name": "r", "type": "bytes32" },
+      { "internalType": "bytes32", "name": "s", "type": "bytes32" }
+    ],
+    "name": "depositWithSignature",
+    "outputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "lastRewardAmount",
+    "outputs": [{ "internalType": "uint192", "name": "", "type": "uint192" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "lastSync",
+    "outputs": [{ "internalType": "uint32", "name": "", "type": "uint32" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "name": "maxDeposit",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "name": "maxMint",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "owner", "type": "address" }
+    ],
+    "name": "maxRedeem",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "owner", "type": "address" }
+    ],
+    "name": "maxWithdraw",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" },
+      { "internalType": "address", "name": "receiver", "type": "address" }
+    ],
+    "name": "mint",
+    "outputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "name",
+    "outputs": [{ "internalType": "string", "name": "", "type": "string" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "name": "nonces",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "owner", "type": "address" },
+      { "internalType": "address", "name": "spender", "type": "address" },
+      { "internalType": "uint256", "name": "value", "type": "uint256" },
+      { "internalType": "uint256", "name": "deadline", "type": "uint256" },
+      { "internalType": "uint8", "name": "v", "type": "uint8" },
+      { "internalType": "bytes32", "name": "r", "type": "bytes32" },
+      { "internalType": "bytes32", "name": "s", "type": "bytes32" }
+    ],
+    "name": "permit",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" }
+    ],
+    "name": "previewDeposit",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" }
+    ],
+    "name": "previewMint",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" }
+    ],
+    "name": "previewRedeem",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" }
+    ],
+    "name": "previewWithdraw",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "pricePerShare",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" },
+      { "internalType": "address", "name": "receiver", "type": "address" },
+      { "internalType": "address", "name": "owner", "type": "address" }
+    ],
+    "name": "redeem",
+    "outputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "rewardsCycleEnd",
+    "outputs": [{ "internalType": "uint32", "name": "", "type": "uint32" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "rewardsCycleLength",
+    "outputs": [{ "internalType": "uint32", "name": "", "type": "uint32" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "symbol",
+    "outputs": [{ "internalType": "string", "name": "", "type": "string" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "syncRewards",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "totalAssets",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "totalSupply",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "to", "type": "address" },
+      { "internalType": "uint256", "name": "amount", "type": "uint256" }
+    ],
+    "name": "transfer",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "from", "type": "address" },
+      { "internalType": "address", "name": "to", "type": "address" },
+      { "internalType": "uint256", "name": "amount", "type": "uint256" }
+    ],
+    "name": "transferFrom",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "assets", "type": "uint256" },
+      { "internalType": "address", "name": "receiver", "type": "address" },
+      { "internalType": "address", "name": "owner", "type": "address" }
+    ],
+    "name": "withdraw",
+    "outputs": [
+      { "internalType": "uint256", "name": "shares", "type": "uint256" }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  }
+]
diff --git a/dapp-oeth/src/hooks/useSwapEstimator.js b/dapp-oeth/src/hooks/useSwapEstimator.js
index 85ac9a7bd9..0651aa3e9e 100644
--- a/dapp-oeth/src/hooks/useSwapEstimator.js
+++ b/dapp-oeth/src/hooks/useSwapEstimator.js
@@ -3,20 +3,16 @@ import { ethers, BigNumber } from 'ethers'
 import { useStoreState } from 'pullstate'
 import { get, minBy } from 'lodash'
 import AccountStore from 'stores/AccountStore'
-import {
-  mintAbsoluteGasLimitBuffer,
-  mintPercentGasLimitBuffer,
-  redeemPercentGasLimitBuffer,
-  approveCoinGasLimits,
-  max_price,
-} from 'utils/constants'
+import { approveCoinGasLimits, max_price } from 'utils/constants'
 import { usePrevious } from 'utils/hooks'
 import useCurrencySwapper from 'hooks/useCurrencySwapper'
 import ContractStore from 'stores/ContractStore'
-import { calculateSwapAmounts, formatCurrency } from 'utils/math'
+import { calculateSwapAmounts } from 'utils/math'
 import fetchWithTimeout from 'utils/fetchWithTimeout'
 import { find } from 'lodash'
 
+const parseFloatBN = (value) => parseFloat(ethers.utils.formatEther(value))
+
 const errorIncludes = (e, errorTxt) => {
   return (
     (e.data && e.data.message && e.data.message.includes(errorTxt)) ||
@@ -374,6 +370,21 @@ const useSwapEstimator = ({
       }
     }
 
+    let amountReceived = amount
+
+    if (coinToSwap === 'sfrxeth') {
+      const [estimatedDeposit, frxEthMintPrice] = await Promise.all([
+        contracts.sfrxeth
+          .previewDeposit(ethers.utils.parseUnits(String(amount)))
+          .then(parseFloatBN),
+        contracts.vault
+          .priceUnitMint(contracts.frxeth.address)
+          .then(parseFloatBN),
+      ])
+      // previewDeposit * frx eth price should give a mint estimate receive
+      amountReceived = estimatedDeposit * frxEthMintPrice
+    }
+
     const approveAllowanceNeeded = allowancesLoaded
       ? parseFloat(allowances[coinToSwap].zapper) < amount
       : true
@@ -389,7 +400,7 @@ const useSwapEstimator = ({
       approveGasUsage,
       approveAllowanceNeeded,
       inputAmount: parseFloat(inputAmountRaw),
-      amountReceived: amount,
+      amountReceived,
     }
   }
 
diff --git a/dapp-oeth/src/utils/contracts.js b/dapp-oeth/src/utils/contracts.js
index dc4136f368..e8610b31be 100644
--- a/dapp-oeth/src/utils/contracts.js
+++ b/dapp-oeth/src/utils/contracts.js
@@ -16,6 +16,7 @@ import daiAbi from 'constants/mainnetAbi/dai.json'
 import ognAbi from 'constants/mainnetAbi/ogn.json'
 import ogvAbi from 'constants/mainnetAbi/ogv.json'
 import veogvAbi from 'constants/mainnetAbi/veogv.json'
+import sfrxethAbi from 'constants/mainnetAbi/sfrxeth.json'
 
 const curveFactoryMiniAbi = [
   {
@@ -241,7 +242,7 @@ export async function setupContracts(account, library, chainId, fetchId) {
     addresses.mainnet.WOETHProxy,
     network.contracts['WOETH'].abi
   )
-  const sfrxeth = getContract(addresses.mainnet.sfrxETH, ognAbi)
+  const sfrxeth = getContract(addresses.mainnet.sfrxETH, sfrxethAbi)
   const zapper = getContract(
     addresses.mainnet.OETHZapper,
     network.contracts['OETHZapper'].abi

From 709221e8af191d8b3066bc9c724ddfea66e213e3 Mon Sep 17 00:00:00 2001
From: unknown <scottymitch88@gmail.com>
Date: Tue, 16 May 2023 12:20:56 -0400
Subject: [PATCH 2/3] Fix redeem and activity values

---
 dapp-oeth/public/images/activity.png            | Bin 584 -> 530 bytes
 dapp-oeth/src/components/Nav.js                 |   7 ++++++-
 .../src/components/buySell/SwapCurrencyPill.js  |   2 --
 .../src/components/buySell/SwapHomepage.js      |  14 +++++++-------
 dapp-oeth/src/hooks/useSwapEstimator.js         |   2 +-
 5 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/dapp-oeth/public/images/activity.png b/dapp-oeth/public/images/activity.png
index ebea1e1f343e100d7747399f8b830b5de93cdd4f..8d4530c075f1809465c3bba36bf16853ae1a3071 100644
GIT binary patch
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z!w8bMmRRk$8WB5P!(xpJMm_iN;7{e+vcE#s(6L8<Cx-QV+6nfi1v8hMPHt+%&O>dc
z|Hb+tjjvDp&9~Af&Vf*n=Ei=kr}hPgT%J4xAJ&I0hD3s_{Ca1c^J(V1hiBn+jJMQV
zAIsy1Akn;O&?16)cahjaf^{`2pp-#Jg1O0K%~<c%PN{L(Iu{F&A#XTjx*zZT>gs8`
z<G^grT2nZO6O#MCySeb19_XJhzphkf%`Y6%37ltJ*6&RC5w0Tt0IgEQ4_2$i!vFvP
M07*qoM6N<$g3HPH_W%F@

diff --git a/dapp-oeth/src/components/Nav.js b/dapp-oeth/src/components/Nav.js
index 9395c090ea..941c230992 100644
--- a/dapp-oeth/src/components/Nav.js
+++ b/dapp-oeth/src/components/Nav.js
@@ -225,6 +225,9 @@ const TransactionActivityDropdown = () => {
       </Dropdown>
       <style jsx>{`
         .activity-toggle {
+          display: flex;
+          align-items: center;
+          justify-content: center;
           width: 40px;
           height: 40px;
           background: #1e1f25;
@@ -237,8 +240,10 @@ const TransactionActivityDropdown = () => {
         }
 
         .activity-icon {
+          display: flex;
+          flex-shrink: 0;
           width: 25px;
-          height: 15px;
+          height: 25px;
         }
 
         .dropdown-menu {
diff --git a/dapp-oeth/src/components/buySell/SwapCurrencyPill.js b/dapp-oeth/src/components/buySell/SwapCurrencyPill.js
index 393fbf7f9c..410374b51f 100644
--- a/dapp-oeth/src/components/buySell/SwapCurrencyPill.js
+++ b/dapp-oeth/src/components/buySell/SwapCurrencyPill.js
@@ -466,8 +466,6 @@ const SwapCurrencyPill = ({
   const coinBalances = useStoreState(AccountStore, (s) => s.balances)
   const [error, setError] = useState(null)
 
-  console.log(selectedSwap, selectedCoin, swapMode)
-
   const coinMintOptions = [
     'eth',
     'weth',
diff --git a/dapp-oeth/src/components/buySell/SwapHomepage.js b/dapp-oeth/src/components/buySell/SwapHomepage.js
index cf17b23531..3df94eee69 100644
--- a/dapp-oeth/src/components/buySell/SwapHomepage.js
+++ b/dapp-oeth/src/components/buySell/SwapHomepage.js
@@ -207,6 +207,7 @@ const SwapHomepage = ({
       coinReceived,
       swapAmount,
       stablecoinUsed,
+      selectedSwap,
     }
   }
 
@@ -239,19 +240,18 @@ const SwapHomepage = ({
         ;({ result, swapAmount, minSwapAmount } = await swapCurve())
       }
 
+      const amountReceived = String(
+        metadata?.selectedSwap?.amountReceived || selectedRedeemCoinAmount
+      )
+
       storeTransaction(
         result,
         swapMode,
         swapMode === 'mint' ? selectedBuyCoin : selectedRedeemCoin,
         {
           [swapMode === 'mint' ? selectedBuyCoin : selectedRedeemCoin]:
-            swapMode === 'mint'
-              ? selectedBuyCoinAmount
-              : selectedRedeemCoinAmount,
-          oeth:
-            swapMode === 'mint'
-              ? selectedRedeemCoinAmount
-              : selectedBuyCoinAmount,
+            swapMode === 'mint' ? selectedBuyCoinAmount : amountReceived,
+          oeth: swapMode === 'mint' ? amountReceived : selectedBuyCoinAmount,
         }
       )
 
diff --git a/dapp-oeth/src/hooks/useSwapEstimator.js b/dapp-oeth/src/hooks/useSwapEstimator.js
index 0651aa3e9e..68232e32e8 100644
--- a/dapp-oeth/src/hooks/useSwapEstimator.js
+++ b/dapp-oeth/src/hooks/useSwapEstimator.js
@@ -375,7 +375,7 @@ const useSwapEstimator = ({
     if (coinToSwap === 'sfrxeth') {
       const [estimatedDeposit, frxEthMintPrice] = await Promise.all([
         contracts.sfrxeth
-          .previewDeposit(ethers.utils.parseUnits(String(amount)))
+          .previewRedeem(ethers.utils.parseUnits(String(amount)))
           .then(parseFloatBN),
         contracts.vault
           .priceUnitMint(contracts.frxeth.address)

From a4f87c48de0bef642e22b8ae35eea0239cd6cc92 Mon Sep 17 00:00:00 2001
From: unknown <scottymitch88@gmail.com>
Date: Tue, 16 May 2023 12:27:38 -0400
Subject: [PATCH 3/3] Fix comment

---
 dapp-oeth/src/hooks/useSwapEstimator.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dapp-oeth/src/hooks/useSwapEstimator.js b/dapp-oeth/src/hooks/useSwapEstimator.js
index 68232e32e8..f10b44bb9b 100644
--- a/dapp-oeth/src/hooks/useSwapEstimator.js
+++ b/dapp-oeth/src/hooks/useSwapEstimator.js
@@ -381,7 +381,7 @@ const useSwapEstimator = ({
           .priceUnitMint(contracts.frxeth.address)
           .then(parseFloatBN),
       ])
-      // previewDeposit * frx eth price should give a mint estimate receive
+      // previewRedeem * frxETH price should give a mint estimate receive
       amountReceived = estimatedDeposit * frxEthMintPrice
     }