From 6876ebe6dc0777e262fe1a4a735ffb065ed834f9 Mon Sep 17 00:00:00 2001
From: Nishan <nishanbende@gmail.com>
Date: Wed, 1 Nov 2023 07:50:42 +0530
Subject: [PATCH] 2x + priority

---
 .../use-creator-token-approve.ts              | 16 +++++---------
 .../creator-token/use-creator-token-buy.ts    | 16 +++++---------
 .../hooks/creator-token/use-max-gas-prices.ts | 21 +++++++++++++++++++
 3 files changed, 31 insertions(+), 22 deletions(-)
 create mode 100644 packages/app/hooks/creator-token/use-max-gas-prices.ts

diff --git a/packages/app/hooks/creator-token/use-creator-token-approve.ts b/packages/app/hooks/creator-token/use-creator-token-approve.ts
index 8d437378b..f6f998027 100644
--- a/packages/app/hooks/creator-token/use-creator-token-approve.ts
+++ b/packages/app/hooks/creator-token/use-creator-token-approve.ts
@@ -5,10 +5,12 @@ import { publicClient } from "app/lib/wallet-public-client";
 import { isDEV } from "app/utilities";
 
 import { useWallet } from "../use-wallet";
+import { useMaxGasPrices } from "./use-max-gas-prices";
 import { usdcAddress } from "./utils";
 
 export const useApproveToken = () => {
   const wallet = useWallet();
+  const { getMaxFeePerGasAndPriorityPrice } = useMaxGasPrices();
   const state = useSWRMutation<boolean | undefined>(
     "approveToken",
     async function approveToken(
@@ -44,18 +46,10 @@ export const useApproveToken = () => {
           return true;
         }
 
-        const { maxFeePerGas: estimatedMaxFeePerGas, maxPriorityFeePerGas } =
-          await publicClient.estimateFeesPerGas({
-            type: "eip1559",
-          });
-
-        const latestBlockBaseFeePerGas = (await publicClient.getBlock())
-          .baseFeePerGas;
+        const maxPrices = await getMaxFeePerGasAndPriorityPrice();
 
-        if (maxPriorityFeePerGas) {
-          const maxFeePerGas = latestBlockBaseFeePerGas
-            ? latestBlockBaseFeePerGas * 2n + maxPriorityFeePerGas
-            : estimatedMaxFeePerGas;
+        if (maxPrices) {
+          const { maxFeePerGas, maxPriorityFeePerGas } = maxPrices;
 
           console.log("gas price  approve", {
             maxFeePerGas,
diff --git a/packages/app/hooks/creator-token/use-creator-token-buy.ts b/packages/app/hooks/creator-token/use-creator-token-buy.ts
index a32d28bec..fba9a9c80 100644
--- a/packages/app/hooks/creator-token/use-creator-token-buy.ts
+++ b/packages/app/hooks/creator-token/use-creator-token-buy.ts
@@ -24,6 +24,7 @@ import {
   getPriceToBuyNextKey,
   useCreatorTokenPriceToBuyNext,
 } from "./use-creator-token-price-to-buy-next";
+import { useMaxGasPrices } from "./use-max-gas-prices";
 import { useSwitchChain } from "./use-switch-chain";
 import { baseChain, creatorTokenSwapRouterAddress } from "./utils";
 
@@ -36,6 +37,7 @@ export const useCreatorTokenBuy = (params: {
   const { data: profileData } = useUserProfile({ address: username });
   const wallet = useWallet();
   const approveToken = useApproveToken();
+  const { getMaxFeePerGasAndPriorityPrice } = useMaxGasPrices();
   const priceToBuyNext = useCreatorTokenPriceToBuyNext({
     address: profileData?.data?.profile.creator_token?.address,
     tokenAmount,
@@ -66,18 +68,10 @@ export const useCreatorTokenBuy = (params: {
       if (walletAddress && profileData?.data?.profile.creator_token) {
         const switchChainSuccess = await switchChain.trigger();
 
-        const { maxFeePerGas: estimatedMaxFeePerGas, maxPriorityFeePerGas } =
-          await publicClient.estimateFeesPerGas({
-            type: "eip1559",
-          });
-
-        const latestBlockBaseFeePerGas = (await publicClient.getBlock())
-          .baseFeePerGas;
+        const maxPrices = await getMaxFeePerGasAndPriorityPrice();
 
-        if (maxPriorityFeePerGas) {
-          const maxFeePerGas = latestBlockBaseFeePerGas
-            ? latestBlockBaseFeePerGas * 2n + maxPriorityFeePerGas
-            : estimatedMaxFeePerGas;
+        if (maxPrices) {
+          const { maxFeePerGas, maxPriorityFeePerGas } = maxPrices;
 
           console.log("gas price  buy", {
             maxFeePerGas,
diff --git a/packages/app/hooks/creator-token/use-max-gas-prices.ts b/packages/app/hooks/creator-token/use-max-gas-prices.ts
new file mode 100644
index 000000000..05ab886f4
--- /dev/null
+++ b/packages/app/hooks/creator-token/use-max-gas-prices.ts
@@ -0,0 +1,21 @@
+import { publicClient } from "app/lib/wallet-public-client";
+
+export const useMaxGasPrices = () => {
+  const getMaxFeePerGasAndPriorityPrice = async () => {
+    // In Wei. Gwei = 0.001. Recommended by base team
+    const maxPriorityFeePerGas = 1000000n;
+    const latestBlockBaseFeePerGas = (await publicClient.getBlock())
+      .baseFeePerGas;
+    if (latestBlockBaseFeePerGas) {
+      const maxFeePerGas = latestBlockBaseFeePerGas * 2n + maxPriorityFeePerGas;
+      return {
+        maxFeePerGas,
+        maxPriorityFeePerGas,
+      };
+    }
+  };
+
+  return {
+    getMaxFeePerGasAndPriorityPrice,
+  };
+};