From 8721e9243d0aef75e097c8db0fcb31237b1277c6 Mon Sep 17 00:00:00 2001
From: wjrjerome <wjrjerome@babylonchain.io>
Date: Fri, 13 Dec 2024 12:38:46 +1100
Subject: [PATCH] chore: BBN gas fee to use price of 0.002

---
 .../hooks/client/rpc/mutation/useBbnTransaction.ts   | 12 ++++++++----
 src/app/hooks/services/useTransactionService.ts      |  1 -
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/app/hooks/client/rpc/mutation/useBbnTransaction.ts b/src/app/hooks/client/rpc/mutation/useBbnTransaction.ts
index e3e77942..8d3a6ea7 100644
--- a/src/app/hooks/client/rpc/mutation/useBbnTransaction.ts
+++ b/src/app/hooks/client/rpc/mutation/useBbnTransaction.ts
@@ -2,6 +2,10 @@ import { useCallback } from "react";
 
 import { useSigningStargateClient } from "./useSigningStargateClient";
 
+const GAS_MULTIPLIER = 1.5;
+const GAS_DENOM = "ubbn";
+const GAS_PRICE = 0.002;
+
 export interface BbnGasFee {
   amount: { denom: string; amount: string }[];
   gas: string;
@@ -22,11 +26,11 @@ export const useBbnTransaction = () => {
   const estimateBbnGasFee = useCallback(
     async <T>(msg: { typeUrl: string; value: T }): Promise<BbnGasFee> => {
       const gasEstimate = await simulate(msg);
-      // TODO: The gas calculation need to be improved
-      // https://github.com/babylonlabs-io/simple-staking/issues/320
-      const gasWanted = Math.ceil(gasEstimate * 1.5);
+      const gasWanted = Math.ceil(gasEstimate * GAS_MULTIPLIER);
       return {
-        amount: [{ denom: "ubbn", amount: (gasWanted * 0.01).toFixed(0) }],
+        amount: [
+          { denom: GAS_DENOM, amount: (gasWanted * GAS_PRICE).toFixed(0) },
+        ],
         gas: gasWanted.toString(),
       };
     },
diff --git a/src/app/hooks/services/useTransactionService.ts b/src/app/hooks/services/useTransactionService.ts
index f0c8c398..78b7488a 100644
--- a/src/app/hooks/services/useTransactionService.ts
+++ b/src/app/hooks/services/useTransactionService.ts
@@ -117,7 +117,6 @@ export const useTransactionService = () => {
 
       // Get the param based on the tip height
       // EOI should always be created based on the BTC tip height from BBN chain
-      console.log("tipHeader.height", tipHeader.height);
       const p = getBbnParamByBtcHeight(tipHeader.height, versionedParams);
 
       const staking = new Staking(