Merge pull request #649 from Prop-House/offchain

Promote offchain to prod

packages/prop-house-communities/src/_strategies/index.ts

@@ -5,6 +5,7 @@ import { validEnsAndMinBal, validEnsAndMinBalStratArgs } from './validEnsAndMinB
 import { thankApe, thankApeStratArgs } from './thankApe';
 import { minimumBalance, minimumBalanceStratArgs } from './minimumBalance';
 import { balanceOfErc1155, balanceOfErc1155StratArgs } from './balanceOfErc1155';
+import { nounsDelegatedVotes, nounsDelegatedVotesStratArgs } from './nounsDelegatedVotes';
 
 export const StrategyNames = [
   'balanceOfErc721',
@@ -14,6 +15,7 @@ export const StrategyNames = [
   'thankApe',
   'minimumBalance',
   'balanceOfErc1155',
+  'nounsDelegatedVotes',
 ] as const;
 
 export type StrategyName = typeof StrategyNames[number];
@@ -25,7 +27,8 @@ export type StrategyPayload =
   | validEnsAndMinBalStratArgs
   | thankApeStratArgs
   | minimumBalanceStratArgs
-  | balanceOfErc1155StratArgs;
+  | balanceOfErc1155StratArgs
+  | nounsDelegatedVotesStratArgs;
 
 export const _strategies = {
   balanceOfErc721: balanceOfErc721,
@@ -35,4 +38,5 @@ export const _strategies = {
   thankApe: thankApe,
   minimumBalance: minimumBalance,
   balanceOfErc1155: balanceOfErc1155,
+  nounsDelegatedVotes: nounsDelegatedVotes,
 };

packages/prop-house-communities/src/_strategies/nounsDelegatedVotes.ts

@@ -0,0 +1,34 @@
+import { StrategyFactory, _Strategy } from '../types/_Strategy';
+import { BaseArgs } from '../actions/execStrategy';
+import NounsABI from '../abi/NounsABI.json';
+import { parseBlockTag } from '../utils/parseBlockTag';
+import { Contract } from 'ethers';
+import BigNumber from 'bignumber.js';
+
+export interface nounsDelegatedVotesStratArgs extends BaseArgs {
+  multiplier: number;
+  blockTag?: number;
+}
+
+/**
+ * Calculates number of delegate votes for NounsDAO
+ */
+export const nounsDelegatedVotes: StrategyFactory<nounsDelegatedVotesStratArgs> = (
+  params: nounsDelegatedVotesStratArgs,
+): _Strategy => {
+  return async () => {
+    const { account, blockTag, provider, multiplier } = params;
+    const _contract = new Contract(
+      '0x9C8fF314C9Bc7F6e59A9d9225Fb22946427eDC03',
+      NounsABI,
+      provider,
+    );
+    const balance = await _contract.getCurrentVotes(account, {
+      blockTag: parseBlockTag(blockTag),
+    });
+
+    const parsedBal = new BigNumber(balance.toString()).toNumber();
+
+    return parsedBal * multiplier;
+  };
+};