Merge pull request #370 from merofinance/polygon-launch-2

Polygon Launch
merofinance · Jul 17, 2023 · 16ad7b2 · 16ad7b2
2 parents 74a9600 + f0f9d03
commit 16ad7b2
Show file tree

Hide file tree

Showing 21 changed files with 235 additions and 99 deletions.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -45,5 +45,5 @@ jobs:
         with:
           repoToken: "${{ secrets.GITHUB_TOKEN }}"
           firebaseServiceAccount: "${{ secrets.FIREBASE_SERVICE_ACCOUNT }}"
-          expires: 4d
+          expires: 30d
           projectId: backd-ffbef
diff --git a/package.json b/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@material-ui/core": "^4.12.3",
     "@material-ui/icons": "^4.11.2",
-    "@merofinance/protocol": "^1.3.0",
+    "@merofinance/protocol": "^1.4.0",
     "@reduxjs/toolkit": "^1.7.1",
     "@sentry/react": "^6.16.1",
     "@sentry/tracing": "^6.16.1",

diff --git a/public/locales/en/translation.json b/public/locales/en/translation.json
@@ -468,7 +468,7 @@
     "gasBank": {
       "header": "Gas Bank",
       "topupAmount": "Gas Bank top-up amount",
-      "topupAmountTooltip": "The amount of ETH send to the Gas Bank to cover the gas cost of executing the transactions. Unspend ETH will be refunded to your wallet."
+      "topupAmountTooltip": "The amount of {{nativeToken}} send to the Gas Bank to cover the gas cost of executing the transactions. Unspend {{nativeToken}} will be refunded to your wallet."
     },
     "debtRepayment": {
       "header": "Debt repayment",
@@ -546,7 +546,7 @@
         "gas": {
           "label": "Max gas price",
           "question": "What is the maximum gas price to pay per debt repayment?",
-          "tooltip": "The maximum gas price used when paying for each debt repayment. Value is in Gwei units. If value is too low, then your debt repayment may not execute in time which could result in liquidation. A value of at least 200 Gwei is recommended.",
+          "tooltip": "The maximum gas price used when paying for each debt repayment. Value is in Gwei units. If value is too low, then your debt repayment may not execute in time which could result in liquidation. A value of at least {{maximumGas}} Gwei is recommended.",
           "hover": "Enter max gas price"
         }
       }
@@ -647,20 +647,22 @@
         "priority": {
           "label": "Priority fee",
           "question": "What priority fee should be used for your top-up?",
-          "tooltip": "An additional fee paid to Ethereum miners to prioritise your transaction and have it completed quicker. 3 Gwei is a suitable amount.",
+          "placeholder": "{{priorityFee}} Gwei",
+          "tooltip": "An additional fee paid to Ethereum miners to prioritise your transaction and have it completed quicker. {{priorityFee}} Gwei is a suitable amount.",
           "hover": "Enter priority fee",
           "invalid": "Invalid number",
           "required": "Priority fee required"
         },
         "gas": {
           "label": "Max gas price",
           "question": "What is the maximum gas price to pay per top-up?",
-          "tooltip": "The maximum gas price used when paying for each top-up. Value is in Gwei units. If value is too low, then your top-up may not execute in time which could result in liquidation. A value of at least 200 Gwei is recommended.",
+          "tooltip": "The maximum gas price used when paying for each top-up. Value is in Gwei units. If value is too low, then your top-up may not execute in time which could result in liquidation. A value of at least {{maximumGas}} Gwei is recommended.",
+          "placeholder": "{{maximumGas}} Gwei",
           "hover": "Enter max gas price",
           "required": "Max gas price required",
           "invalid": "Invalid number",
           "positive": "Must be positive number",
-          "notEnoughEth": "Not enough ETH in wallet to cover gas, {{needed}} ETH needed",
+          "notEnoughEth": "Not enough {{nativeToken}} in wallet to cover gas, {{needed}} {{nativeToken}} needed",
           "maxFeeTooLow": "The maximum gas price must be at least 2 Gwei",
           "maxFeeGTPriorityFee": "The maximum gas price must be greater than the priority fee"
         }
@@ -849,7 +851,7 @@
         "button": "Decrease threshold"
       },
       "singleLow": {
-        "text": "Your max gas cost is {{maxGas}} ({{ethAmount}} ETH), however the single amount is only {{single}} ({{underlyingAmount}} {{underlyingSymbol}}). I recommend increasing the single amount to {{suggestion}} {{underlyingSymbol}} for more efficient actions.",
+        "text": "Your max gas cost is {{maxGas}} ({{ethAmount}} {{nativeToken}}), however the single amount is only {{single}} ({{underlyingAmount}} {{underlyingSymbol}}). I recommend increasing the single amount to {{suggestion}} {{underlyingSymbol}} for more efficient actions.",
         "button": "Increase single amount"
       },
       "topupPositionLow": {

diff --git a/src/app/hooks/use-ens.ts b/src/app/hooks/use-ens.ts
@@ -3,11 +3,12 @@ import { useEffect, useState } from "react";
 import { Optional } from "../../lib/types";
 
 const useENS = (): { ensName: Optional<string>; ensAvatar: Optional<string> } => {
-  const { account, library } = useWeb3React();
+  const { account, library, chainId } = useWeb3React();
   const [ensName, setENSName] = useState<Optional<string>>(null);
   const [ensAvatar, setENSAvatar] = useState<Optional<string>>(null);
 
   const resolveENS = async (): Promise<void> => {
+    if (chainId === 137) return;
     setENSAvatar(null);
     if (!account) return;
     const ensName = await library.provider.lookupAddress(account);

diff --git a/src/app/hooks/use-pools-preview.ts b/src/app/hooks/use-pools-preview.ts
@@ -1,6 +1,6 @@
 import { useEffect, useState } from "react";
 import { ScaledNumber } from "scaled-number";
-import POOL_METADATA from "../../lib/data/pool-metadata";
+import POOL_METADATA, { PoolMetadata } from "../../lib/data/pool-metadata";
 import { Optional, Pool } from "../../lib/types";
 
 interface DataResponse {
@@ -18,14 +18,16 @@ const usePoolsPreview = (): Optional<Pool[]> => {
   const [pools, setPools] = useState<Optional<Pool[]>>(null);
 
   const fetchPools = async () => {
-    const queries = POOL_METADATA.map(async (data) => {
-      const response = await fetch(`https://yields.llama.fi/chart/${data.id}`);
-      const json = await response.json();
-      return {
-        symbol: data.symbol,
-        ...json.data.slice(-1)[0],
-      };
-    });
+    const queries = POOL_METADATA.filter((metadata: PoolMetadata) => metadata.id).map(
+      async (data) => {
+        const response = await fetch(`https://yields.llama.fi/chart/${data.id}`);
+        const json = await response.json();
+        return {
+          symbol: data.symbol,
+          ...json.data.slice(-1)[0],
+        };
+      }
+    );
     const response = await Promise.all(queries);
     const pools_: Pool[] = response.map((poolResponse: DataResponse) => {
       const pool_: Pool = {
@@ -50,7 +52,6 @@ const usePoolsPreview = (): Optional<Pool[]> => {
           name: "",
           symbol: poolResponse.symbol,
         },
-        harvestable: ScaledNumber.fromUnscaled(1),
         strategyInfo: null,
         isPaused: false,
       };

diff --git a/src/app/web3.ts b/src/app/web3.ts
@@ -5,7 +5,7 @@ import { PrivateKeyConnector } from "../lib/private-key-connector";
 import { RPC } from "../lib/constants";
 
 export const privateKeyConnector = new PrivateKeyConnector({
-  supportedChainIds: [42],
+  supportedChainIds: [42, 137],
 });
 
 export const supportedChainIds = [

diff --git a/src/lib/apys.ts b/src/lib/apys.ts
@@ -1,10 +1,36 @@
-const apiURL = "https://mero.finance/api/apys";
+const API_URL = "https://mero.finance/api/apys";
+
+// Temporary Polygon constants
+const POLYGON_API_URL = "https://www.convexfinance.com/api/curve-polygon-apys";
+const POLYGON_USDC_POOL_ID = "polygon-0xa138341185a9d0429b0021a11fb717b225e13e1f-11";
+const POLYGON_USDC_POOL = "0x3d1004B2856b9d35228ec28f8F152FE9f9e51f81";
 
 export interface Apy {
   pool: string;
   apy: number;
 }
 
 export async function getApys(): Promise<Apy[]> {
-  return (await fetch(apiURL)).json();
+  const [mainnetApys, polygonApys] = await Promise.all([getMainnetApys(), getPolygonApys()]);
+  return [...mainnetApys, ...polygonApys];
+}
+
+export async function getMainnetApys(): Promise<Apy[]> {
+  return (await fetch(API_URL)).json();
+}
+
+// This is temporary while the pool is new and volatile
+// We will switch to the same APY system as the other pools once it stabilizes
+export async function getPolygonApys(): Promise<Apy[]> {
+  const response = await fetch(POLYGON_API_URL);
+  const data = await response.json();
+  const aprData = data.apys[POLYGON_USDC_POOL_ID];
+  const apr = aprData.baseApy + aprData.crvApy;
+  const apy = ((1 + apr / 100 / 52) ** 52 - 1) * 100;
+  return [
+    {
+      pool: POLYGON_USDC_POOL,
+      apy,
+    },
+  ];
 }
diff --git a/src/lib/constants.ts b/src/lib/constants.ts
@@ -1,11 +1,18 @@
 import { BigNumber } from "ethers";
+import { Token } from "./types";
 
 // Feature toggles
 export const STAKING_LIVE = false;
 
 // Variables
 export const ZERO_ADDRESS = "0x0000000000000000000000000000000000000000";
 export const DUMMY_ETH_ADDRESS = "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE";
+export const ETH_TOKEN: Token = {
+  address: ZERO_ADDRESS,
+  decimals: 18,
+  name: "Ether",
+  symbol: "ETH",
+};
 export const ETH_DECIMALS = 18;
 export const GWEI_DECIMALS = 9;
 export const INFINITE_APPROVE_AMMOUNT = 10 ** 10;
@@ -27,6 +34,7 @@ export const chainIds: Record<string, string> = {
   "4": "Rinkeby",
   "5": "Goerli",
   "42": "Kovan",
+  "137": "Polygon",
 };
 
 export const etherscanUrls: Record<string, string> = {
@@ -36,6 +44,7 @@ export const etherscanUrls: Record<string, string> = {
   "5": "https://goerli.etherscan.io/",
   "42": "https://kovan.etherscan.io/",
   "1337": "https://etherscan.io/", // NOTE: only here to have some dummy URL in dev
+  "137": "https://polygonscan.com/",
 };
 
 export const oldPools: Record<string, string[]> = {
@@ -55,3 +64,22 @@ export const oldAddressProviders: Record<string, string> = {
   "1": "0x139c15e21b0f6e43Fc397faCe5De5b7D5ae6874a",
   "42": "0xFCf9099D09dBf9498Ad356006C95bDb988022e7E",
 };
+
+interface ChainSpecificCopy {
+  nativeToken: string;
+  priorityFee: string;
+  maximumGas: string;
+}
+
+export const chainSpecificCopy: Record<number, ChainSpecificCopy> = {
+  1: {
+    nativeToken: "ETH",
+    priorityFee: "3",
+    maximumGas: "200",
+  },
+  137: {
+    nativeToken: "MATIC",
+    priorityFee: "50",
+    maximumGas: "2,000",
+  },
+};
diff --git a/src/lib/contracts/aave/LendingPool.ts b/src/lib/contracts/aave/LendingPool.ts
@@ -1,11 +1,15 @@
 import { Contract, Signer } from "ethers";
 import { Provider } from "@ethersproject/providers";
 
-const ADDRESS = "0x7d2768dE32b0b80b7a3454c06BdAc94A69DDc7A9";
+const ADDRESS: Record<number, string> = {
+  1: "0x7d2768dE32b0b80b7a3454c06BdAc94A69DDc7A9",
+  137: "0x8dFf5E27EA6b7AC08EbFdf9eB090F32ee9a30fcf",
+};
 
 export class LendingPoolFactory {
-  static connect(signerOrProvider: Signer | Provider): Contract {
-    return new Contract(ADDRESS, _abi, signerOrProvider);
+  static connect(signerOrProvider: Signer | Provider, chainId: number): Contract {
+    const address = ADDRESS[chainId];
+    return new Contract(address, _abi, signerOrProvider);
   }
 }
 

diff --git a/src/lib/data/pool-metadata.ts b/src/lib/data/pool-metadata.ts
@@ -6,49 +6,84 @@ import dai from "../../assets/tokens/dai.png";
 import usdt from "../../assets/tokens/usdt.png";
 import frax from "../../assets/tokens/frax.png";
 
+interface ChainSpecificPoolData {
+  aaveStableDebtToken: string;
+  aaveVariableDebtToken: string;
+}
+
 export interface PoolMetadata {
   icon: string;
   id: string;
   symbol: string;
-  aaveStableDebtToken: string;
-  aaveVariableDebtToken: string;
+  chainSpecificData: Record<number, ChainSpecificPoolData>;
 }
 
 const POOL_METADATA: PoolMetadata[] = [
   {
     id: "42cd9ead-de9e-4878-99a1-a984e2ffb4d9",
     symbol: "FRAX",
     icon: frax,
-    aaveStableDebtToken: "0x3916e3B6c84b161df1b2733dFfc9569a1dA710c2",
-    aaveVariableDebtToken: "0xfE8F19B17fFeF0fDbfe2671F248903055AFAA8Ca",
+    chainSpecificData: {
+      1: {
+        aaveStableDebtToken: "0x3916e3B6c84b161df1b2733dFfc9569a1dA710c2",
+        aaveVariableDebtToken: "0xfE8F19B17fFeF0fDbfe2671F248903055AFAA8Ca",
+      },
+    },
   },
   {
     id: "2e9d6ab7-4329-48fd-b962-2ae0e58fc162",
     symbol: "USDT",
     icon: usdt,
-    aaveStableDebtToken: "0xe91D55AB2240594855aBd11b3faAE801Fd4c4687",
-    aaveVariableDebtToken: "0x531842cEbbdD378f8ee36D171d6cC9C4fcf475Ec",
+    chainSpecificData: {
+      1: {
+        aaveStableDebtToken: "0xe91D55AB2240594855aBd11b3faAE801Fd4c4687",
+        aaveVariableDebtToken: "0x531842cEbbdD378f8ee36D171d6cC9C4fcf475Ec",
+      },
+    },
   },
   {
     id: "d9b38ffb-b796-454c-a115-7643fee20f5d",
     symbol: "ETH",
     icon: eth,
-    aaveStableDebtToken: "0x4e977830ba4bd783C0BB7F15d3e243f73FF57121",
-    aaveVariableDebtToken: "0xF63B34710400CAd3e044cFfDcAb00a0f32E33eCf",
+    chainSpecificData: {
+      1: {
+        aaveStableDebtToken: "0x4e977830ba4bd783C0BB7F15d3e243f73FF57121",
+        aaveVariableDebtToken: "0xF63B34710400CAd3e044cFfDcAb00a0f32E33eCf",
+      },
+    },
   },
   {
     id: "65f68bad-18ed-45a7-b089-813780516cdd",
     symbol: "DAI",
     icon: dai,
-    aaveStableDebtToken: "0x778A13D3eeb110A4f7bb6529F99c000119a08E92",
-    aaveVariableDebtToken: "0x6C3c78838c761c6Ac7bE9F59fe808ea2A6E4379d",
+    chainSpecificData: {
+      1: {
+        aaveStableDebtToken: "0x778A13D3eeb110A4f7bb6529F99c000119a08E92",
+        aaveVariableDebtToken: "0x6C3c78838c761c6Ac7bE9F59fe808ea2A6E4379d",
+      },
+    },
   },
   {
     id: "9078aa8f-7378-4969-925e-567e0c9b8da9",
     symbol: "USDC",
     icon: usdc,
-    aaveStableDebtToken: "0xE4922afAB0BbaDd8ab2a88E0C79d884Ad337fcA6",
-    aaveVariableDebtToken: "0x619beb58998eD2278e08620f97007e1116D5D25b",
+    chainSpecificData: {
+      1: {
+        aaveStableDebtToken: "0xE4922afAB0BbaDd8ab2a88E0C79d884Ad337fcA6",
+        aaveVariableDebtToken: "0x619beb58998eD2278e08620f97007e1116D5D25b",
+      },
+    },
+  },
+  {
+    id: "",
+    symbol: "USDC",
+    icon: usdc,
+    chainSpecificData: {
+      137: {
+        aaveStableDebtToken: "0xdeb05676dB0DB85cecafE8933c903466Bf20C572",
+        aaveVariableDebtToken: "0x248960A9d75EdFa3de94F7193eae3161Eb349a12",
+      },
+    },
   },
 ];