refactor: make tvl in tokens

subgraphs/etherfi-promo/schema.graphql

@@ -3,7 +3,7 @@ TVL
 """
 type TVL @entity {
     id: Bytes!
-    tvl: BigInt!
+    tvl: BigDecimal!
 }
 
 """

subgraphs/etherfi-promo/src/operations/update.ts

@@ -4,6 +4,7 @@ import { BorrowerAccount, SupplierAccount, TVL } from '../../generated/schema';
 import { ERC20 as ERC20Contract } from '../../generated/vWeETH/ERC20';
 import { VToken as VTokenContract } from '../../generated/vWeETH/VToken';
 import { getBorrowerAccount, getSupplierAccount, getTvl } from './get';
+import exponentToBigDecimal from '../utilities/exponentToBigDecimal';
 
 export function updateSupplierAccount(
   accountAddress: Address,
@@ -35,7 +36,11 @@ export function updateTvl(event: ethereum.Event): TVL {
   const totalBorrows = vTokenContract.totalBorrowsCurrent();
   const totalReserves = vTokenContract.totalReserves();
   const vTokenContractBalance = underlyingContract.balanceOf(event.address);
-  tvl.tvl = vTokenContractBalance.plus(totalBorrows).minus(totalReserves);
+  tvl.tvl = vTokenContractBalance
+    .plus(totalBorrows)
+    .minus(totalReserves)
+    .toBigDecimal()
+    .div(exponentToBigDecimal(18));
   tvl.save();
   return tvl;
 }

subgraphs/etherfi-promo/src/utilities/exponentToBigDecimal.ts

@@ -1,11 +1,11 @@
 import { BigDecimal } from '@graphprotocol/graph-ts';
 
-function exponentToBigInt(decimals: i32): BigDecimal {
+function exponentToBigDecimal(decimals: i32): BigDecimal {
   let bd = BigDecimal.fromString('1');
   for (let i = 0; i < decimals; i++) {
     bd = bd.times(BigDecimal.fromString('10'));
   }
   return bd;
 }
 
-export default exponentToBigInt;
+export default exponentToBigDecimal;

subgraphs/etherfi-promo/subgraph-client/index.ts

@@ -35,6 +35,6 @@ class SubgraphClient {
   }
 }
 
-export default new SubgraphClient(
-  'http://127.0.0.1:8000/subgraphs/name/venusprotocol/etherfi-promo',
-);
+const createSubgraphClient = (url: string) => new SubgraphClient(url);
+
+export default createSubgraphClient;

subgraphs/etherfi-promo/tests/invariant.ts

@@ -1,16 +1,20 @@
 import assert from 'assert';
-
-import subgraphClient from '../subgraph-client';
+import { parseUnits } from 'ethers/lib/utils';
+import createSubgraphClient from '../subgraph-client';
 
 const weEths = '0xEF26C64bC06A8dE4CA5D31f119835f9A1d9433b9';
 const weEth = '0xb4933AF59868986316Ed37fa865C829Eba2df0C7';
 
+const subgraphClient = createSubgraphClient(
+  'https://gateway.thegraph.com/api/71ddbc81f1c42517b3929d56bc6ce8e8/subgraphs/id/3mxXR9oB3gc12N3jjs4XfzpuqsRZKt5rWv6fhgYsyDgq',
+);
+
 const checkWeEth = async () => {
-  const { data } = await subgraphClient.getAccounts(20679412, weEth, weEth);
+  const { data } = await subgraphClient.getAccounts(21324416, weEth, weEth);
 
   const supplierBalanceSum = data!.supplierAccounts.reduce(
     (acc: BigInt, curr: { effective_balance: string }) => {
-      return BigInt(acc.toString()) + BigInt(curr.effective_balance);
+      return BigInt(acc.toString()) + parseUnits(curr.effective_balance, 18).toBigInt();
     },
     BigInt(0),
   );
@@ -23,19 +27,20 @@ const checkWeEth = async () => {
 };
 
 const checkWeEths = async () => {
-  const { data } = await subgraphClient.getAccounts(20679412, weEths, weEths);
+  const { data } = await subgraphClient.getAccounts(21324416, weEths, weEths);
 
   const supplierBalanceSum = data!.supplierAccounts.reduce(
     (acc: BigInt, curr: { effective_balance: string }) => {
-      return BigInt(acc.toString()) + BigInt(curr.effective_balance);
+      return BigInt(acc.toString()) + parseUnits(curr.effective_balance, 18).toBigInt();
     },
     BigInt(0),
   );
 
   const inRange = (num: bigint) => num >= -10000000000n && num <= 10000000000n;
+
   assert.ok(
-    inRange(BigInt(data!.tvl!.tvl) - (supplierBalanceSum as bigint)),
-    `TVL: ${data!.tvl!.tvl} supplierBalanceSum: ${supplierBalanceSum}`,
+    inRange(parseUnits(data!.tvl!.tvl, 18).toBigInt() - (supplierBalanceSum as bigint)),
+    `TVL: ${parseUnits(data!.tvl!.tvl, 18).toBigInt()} supplierBalanceSum: ${supplierBalanceSum}`,
   );
 };