From 88f294664f837442ac7b0bbd5db1cb4563714583 Mon Sep 17 00:00:00 2001
From: Danyal Prout <me@dany.al>
Date: Mon, 14 Aug 2023 08:22:02 -0700
Subject: [PATCH] Specify that Base is a multilayer network (#20097)

---
 shared/constants/network.ts |  4 ++++
 ui/selectors/selectors.js   | 15 +++++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/shared/constants/network.ts b/shared/constants/network.ts
index c3eb9dc1d..a36d1961a 100644
--- a/shared/constants/network.ts
+++ b/shared/constants/network.ts
@@ -138,6 +138,8 @@ export const CHAIN_IDS = {
   BSC_TESTNET: '0x61',
   OPTIMISM: '0xa',
   OPTIMISM_TESTNET: '0x1a4',
+  BASE: '0x2105',
+  BASE_TESTNET: '0x14a33',
   POLYGON: '0x89',
   POLYGON_TESTNET: '0x13881',
   AVALANCHE: '0xa86a',
@@ -542,6 +544,8 @@ export const BUYABLE_CHAINS_MAP: {
     ChainId,
     | typeof CHAIN_IDS.LOCALHOST
     | typeof CHAIN_IDS.OPTIMISM_TESTNET
+    | typeof CHAIN_IDS.BASE_TESTNET
+    | typeof CHAIN_IDS.BASE
     | typeof CHAIN_IDS.BSC_TESTNET
     | typeof CHAIN_IDS.POLYGON_TESTNET
     | typeof CHAIN_IDS.AVALANCHE_TESTNET
diff --git a/ui/selectors/selectors.js b/ui/selectors/selectors.js
index 079c1f493..9cc5b74f3 100644
--- a/ui/selectors/selectors.js
+++ b/ui/selectors/selectors.js
@@ -1291,11 +1291,22 @@ export function getIsOptimism(state) {
   );
 }
 
+export function getIsBase(state) {
+  return (
+    getCurrentChainId(state) === CHAIN_IDS.BASE ||
+    getCurrentChainId(state) === CHAIN_IDS.BASE_TESTNET
+  );
+}
+
+export function getIsOpStack(state) {
+  return getIsOptimism(state) || getIsBase(state);
+}
+
 export function getIsMultiLayerFeeNetwork(state) {
-  return getIsOptimism(state);
+  return getIsOpStack(state);
 }
 /**
- *  To retrieve the maxBaseFee and priotitFee teh user has set as default
+ *  To retrieve the maxBaseFee and priorityFee the user has set as default
  *
  * @param {*} state
  * @returns Boolean