From 8ea8d9232d8be464aeb05222934d9877eb456876 Mon Sep 17 00:00:00 2001
From: Dhruv Chauhan <dhruv.chauhan98@gmail.com>
Date: Tue, 5 Dec 2023 13:01:33 +0530
Subject: [PATCH] fix div by zero

---
 deployment/deployment.json                          |  2 +-
 .../config/templates/trader.joe.template.yaml       |  2 ++
 .../src/common/handlers/handleRewardV2.ts           | 13 ++++++++-----
 .../src/common/handlers/handleRewardV3.ts           | 13 ++++++++-----
 4 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/deployment/deployment.json b/deployment/deployment.json
index 5547dbc812..bf202e8c4a 100644
--- a/deployment/deployment.json
+++ b/deployment/deployment.json
@@ -5330,7 +5330,7 @@
         "status": "prod",
         "versions": {
           "schema": "1.3.2",
-          "subgraph": "1.2.1",
+          "subgraph": "1.3.0",
           "methodology": "1.0.0"
         },
         "files": {
diff --git a/subgraphs/uniswap-forks/protocols/trader-joe/config/templates/trader.joe.template.yaml b/subgraphs/uniswap-forks/protocols/trader-joe/config/templates/trader.joe.template.yaml
index 748c81209b..e90295ea18 100644
--- a/subgraphs/uniswap-forks/protocols/trader-joe/config/templates/trader.joe.template.yaml
+++ b/subgraphs/uniswap-forks/protocols/trader-joe/config/templates/trader.joe.template.yaml
@@ -6,6 +6,8 @@ description: ...
 graft:
   base: {{subgraphId}} # Subgraph ID of base subgraph
   block: {{graftStartBlock}} # Block number
+features: 
+  - grafting
 {{/graftEnabled}}
 dataSources:
   - kind: ethereum
diff --git a/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV2.ts b/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV2.ts
index 5e275e9c30..409177feb8 100644
--- a/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV2.ts
+++ b/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV2.ts
@@ -18,6 +18,7 @@ import {
 import {
   convertTokenToDecimal,
   roundToWholeNumber,
+  safeDiv,
 } from "../../../../../src/common/utils/utils";
 import { getPoolRewardsWithBonus } from "./handleRewarder";
 
@@ -46,11 +47,13 @@ export function updateMasterChef(
 
   // Calculate Reward Emission per second to a specific pool
   // Pools are allocated based on their fraction of the total allocation times the rewards emitted per second
-  const rewardAmountPerInterval = masterChefV2.adjustedRewardTokenRate
-    .times(masterChefV2Pool.poolAllocPoint)
-    .div(masterChefV2.totalAllocPoint);
-  const rewardAmountPerIntervalBigDecimal = BigDecimal.fromString(
-    rewardAmountPerInterval.toString()
+  const rewardAmountPerIntervalBigDecimal = safeDiv(
+    new BigDecimal(
+      masterChefV2.adjustedRewardTokenRate.times(
+        masterChefV2Pool.poolAllocPoint
+      )
+    ),
+    new BigDecimal(masterChefV2.totalAllocPoint)
   );
 
   // Based on the emissions rate for the pool, calculate the rewards per day for the pool.
diff --git a/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV3.ts b/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV3.ts
index 7b48e327fb..b8abef61e5 100644
--- a/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV3.ts
+++ b/subgraphs/uniswap-forks/protocols/trader-joe/src/common/handlers/handleRewardV3.ts
@@ -19,6 +19,7 @@ import {
 import {
   convertTokenToDecimal,
   roundToWholeNumber,
+  safeDiv,
 } from "../../../../../src/common/utils/utils";
 import { getPoolRewardsWithBonus } from "./handleRewarder";
 
@@ -57,11 +58,13 @@ export function updateMasterChef(
 
   // Calculate Reward Emission per second to a specific pool
   // Pools are allocated based on their fraction of the total allocation times the rewards emitted per second
-  const rewardAmountPerInterval = masterChefV3.adjustedRewardTokenRate
-    .times(masterChefV3Pool.poolAllocPoint)
-    .div(masterChefV3.totalAllocPoint);
-  const rewardAmountPerIntervalBigDecimal = BigDecimal.fromString(
-    rewardAmountPerInterval.toString()
+  const rewardAmountPerIntervalBigDecimal = safeDiv(
+    new BigDecimal(
+      masterChefV3.adjustedRewardTokenRate.times(
+        masterChefV3Pool.poolAllocPoint
+      )
+    ),
+    new BigDecimal(masterChefV3.totalAllocPoint)
   );
 
   // Based on the emissions rate for the pool, calculate the rewards per day for the pool.