feat: add more events to the oracle

proto/nibiru/oracle/v1/event.proto

@@ -53,3 +53,25 @@ message EventAggregatePrevote {
   // transaction messages on behalf of the voting validator.
   string feeder = 2;
 }
+
+
+message EventValidatorPerformance{
+  // Validator is the Bech32 address to which the vote will be credited.
+  string validator = 1;
+
+  // Tendermint consensus voting power
+  int64 voting_power = 2;
+
+  // RewardWeight: Weight of rewards the validator should receive in units of
+  // consensus power.
+  int64 reward_weight = 3;
+
+  // Number of valid votes for which the validator will be rewarded
+  int64 win_count     = 4;
+
+  // Number of abstained votes for which there will be no reward or punishment
+  int64 abstain_count = 5;
+
+  // Number of invalid/punishable votes
+  int64 miss_count    = 6;
+}

x/oracle/keeper/update_exchange_rates.go

@@ -30,6 +30,18 @@ func (k Keeper) UpdateExchangeRates(ctx sdk.Context) types.ValidatorPerformances
 	params, _ := k.Params.Get(ctx)
 	k.clearVotesAndPrevotes(ctx, params.VotePeriod)
 	k.refreshWhitelist(ctx, params.Whitelist, whitelistedPairs)
+
+	for _, validatorPerformance := range validatorPerformances {
+		_ = ctx.EventManager().EmitTypedEvent(&types.EventValidatorPerformance{
+			Validator:    validatorPerformance.ValAddress.String(),
+			VotingPower:  validatorPerformance.Power,
+			RewardWeight: validatorPerformance.RewardWeight,
+			WinCount:     validatorPerformance.WinCount,
+			AbstainCount: validatorPerformance.AbstainCount,
+			MissCount:    validatorPerformance.MissCount,
+		})
+	}
+
 	return validatorPerformances
 }