From 5b55410c1003153b539e10265617fe3966e8a465 Mon Sep 17 00:00:00 2001
From: J M Rossy <jm.rossy@gmail.com>
Date: Sat, 2 Mar 2024 10:26:38 -0500
Subject: [PATCH] Skip revocation event fetching for performance

---
 src/features/governance/VoteForm.tsx          |  2 +-
 .../governance/hooks/useProposalVoters.ts     | 35 +++++++++----------
 2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/src/features/governance/VoteForm.tsx b/src/features/governance/VoteForm.tsx
index 07cf964..346dea9 100644
--- a/src/features/governance/VoteForm.tsx
+++ b/src/features/governance/VoteForm.tsx
@@ -35,7 +35,7 @@ export function VoteForm({
     onStepSuccess: () => refetchVoteRecord(),
     onPlanSuccess: (v, r) =>
       onConfirmed({
-        message: `Vote successful`,
+        message: 'Vote successful',
         receipt: r,
         properties: [
           { label: 'Vote', value: v.vote },
diff --git a/src/features/governance/hooks/useProposalVoters.ts b/src/features/governance/hooks/useProposalVoters.ts
index 9f52e88..bf6f6f8 100644
--- a/src/features/governance/hooks/useProposalVoters.ts
+++ b/src/features/governance/hooks/useProposalVoters.ts
@@ -39,20 +39,20 @@ export async function fetchProposalVoters(id: number): Promise<{
   totals: VoteAmounts;
 }> {
   // Get encoded topics
-  const { castVoteTopics, revokeVoteTopics } =
-    id > PROPOSAL_V1_MAX_ID ? getV2Topics(id) : getV1Topics(id);
+  const { castVoteTopics } = id > PROPOSAL_V1_MAX_ID ? getV2Topics(id) : getV1Topics(id);
 
-  // Prep query URLs
+  const voterToVotes: AddressTo<VoteAmounts> = {};
   const castVoteParams = `topic0=${castVoteTopics[0]}&topic1=${castVoteTopics[1]}&topic0_1_opr=and`;
-  const revokeVoteParams = `topic0=${revokeVoteTopics[0]}&topic1=${revokeVoteTopics[1]}&topic0_1_opr=and`;
   const castVoteEvents = await queryCeloscanLogs(Addresses.Governance, castVoteParams);
-  const revokeVoteEvents = await queryCeloscanLogs(Addresses.Governance, revokeVoteParams);
-
-  const voterToVotes: AddressTo<VoteAmounts> = {};
   reduceLogs(voterToVotes, castVoteEvents, true);
-  reduceLogs(voterToVotes, revokeVoteEvents, false);
 
-  // Filter out stakers who have already revoked all votes
+  // Skipping revoke vote events for now for performance since they are almost never used
+  // Much more common is for a voter to re-vote, replacing the old vote
+  // const revokeVoteParams = `topic0=${revokeVoteTopics[0]}&topic1=${revokeVoteTopics[1]}&topic0_1_opr=and`;
+  // const revokeVoteEvents = await queryCeloscanLogs(Addresses.Governance, revokeVoteParams);
+  // reduceLogs(voterToVotes, revokeVoteEvents, false);
+
+  // Filter out voters with no current votes
   const voters = objFilter(
     voterToVotes,
     (_, votes): votes is VoteAmounts => bigIntSum(Object.values(votes)) > 0n,
@@ -71,7 +71,7 @@ export async function fetchProposalVoters(id: number): Promise<{
   return { voters, totals };
 }
 
-function reduceLogs(voterToVotes: AddressTo<VoteAmounts>, logs: TransactionLog[], isAdd: boolean) {
+function reduceLogs(voterToVotes: AddressTo<VoteAmounts>, logs: TransactionLog[], isCast: boolean) {
   for (const log of logs) {
     try {
       if (!log.topics || log.topics.length < 3) continue;
@@ -104,15 +104,14 @@ function reduceLogs(voterToVotes: AddressTo<VoteAmounts>, logs: TransactionLog[]
 
       if (!account || !isValidAddress(account)) continue;
 
-      voterToVotes[account] ||= { ...EmptyVoteAmounts };
-      if (isAdd) {
-        voterToVotes[account][VoteType.Yes] += yesVotes || 0n;
-        voterToVotes[account][VoteType.No] += noVotes || 0n;
-        voterToVotes[account][VoteType.Abstain] += abstainVotes || 0n;
+      if (isCast) {
+        voterToVotes[account] = {
+          [VoteType.Yes]: yesVotes || 0n,
+          [VoteType.No]: noVotes || 0n,
+          [VoteType.Abstain]: abstainVotes || 0n,
+        };
       } else {
-        voterToVotes[account][VoteType.Yes] -= yesVotes || 0n;
-        voterToVotes[account][VoteType.No] -= noVotes || 0n;
-        voterToVotes[account][VoteType.Abstain] -= abstainVotes || 0n;
+        voterToVotes[account] = EmptyVoteAmounts;
       }
     } catch (error) {
       logger.warn('Error decoding event log', error, log);