From b8a26bab4fa70fbfda3399a0a13b097c0cdc4cd0 Mon Sep 17 00:00:00 2001
From: Michael Standen <mstan@horizon.io>
Date: Tue, 8 Oct 2024 10:43:36 +1300
Subject: [PATCH] Add base chain

---
 src/assets/chains/BASE.svg       |  5 +++++
 src/assets/chains/index.ts       |  2 ++
 src/components/Send/SendForm.tsx |  7 ++++++-
 src/constants/addresses.ts       |  9 +++------
 src/constants/chains.ts          | 19 +++++++++++++++++++
 5 files changed, 35 insertions(+), 7 deletions(-)
 create mode 100644 src/assets/chains/BASE.svg

diff --git a/src/assets/chains/BASE.svg b/src/assets/chains/BASE.svg
new file mode 100644
index 0000000..b9798a4
--- /dev/null
+++ b/src/assets/chains/BASE.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 2500 2500">
+<g id="Layer_x0020_1">
+	<path fill="#0051FE" d="M1247.8,2500c691.6,0,1252.2-559.6,1252.2-1250C2500,559.6,1939.4,0,1247.8,0C591.7,0,53.5,503.8,0,1144.9h1655.1v210.2H0   C53.5,1996.2,591.7,2500,1247.8,2500z"></path>
+</g>
+</svg>
diff --git a/src/assets/chains/index.ts b/src/assets/chains/index.ts
index 2725b95..efdb0a6 100644
--- a/src/assets/chains/index.ts
+++ b/src/assets/chains/index.ts
@@ -1,9 +1,11 @@
 import ARB from 'assets/chains/ARB.svg'
 import AVAX from 'assets/chains/AVAX.svg'
+import BASE from 'assets/chains/BASE.svg'
 import ETH from 'assets/chains/ETH.svg'
 
 export const CHAIN_ICONS = {
   ETH,
   AVAX,
   ARB,
+  BASE,
 }
diff --git a/src/components/Send/SendForm.tsx b/src/components/Send/SendForm.tsx
index bd63aca..0d364b4 100644
--- a/src/components/Send/SendForm.tsx
+++ b/src/components/Send/SendForm.tsx
@@ -45,11 +45,16 @@ const CHAIN_SELECT_ITEMS: SelectItem[] = [
     label: CHAIN_TO_CHAIN_NAME[Chain.ARB],
     icon: CHAIN_ICONS[Chain.ARB],
   },
+  {
+    value: Chain.BASE,
+    label: CHAIN_TO_CHAIN_NAME[Chain.BASE],
+    icon: CHAIN_ICONS[Chain.BASE],
+  },
 ]
 
 export const DEFAULT_FORM_INPUTS: TransactionInputs = {
   source: Chain.ETH,
-  target: Chain.AVAX,
+  target: Chain.BASE,
   address: '',
   amount: '',
 }
diff --git a/src/constants/addresses.ts b/src/constants/addresses.ts
index b21e76c..9adb552 100644
--- a/src/constants/addresses.ts
+++ b/src/constants/addresses.ts
@@ -5,10 +5,9 @@ import { SupportedChainId } from 'constants/chains'
  */
 export const CHAIN_IDS_TO_USDC_ADDRESSES = {
   [SupportedChainId.ETH_SEPOLIA]: '0x1c7d4b196cb0c7b01d743fbc6116a902379c7238',
-
   [SupportedChainId.AVAX_FUJI]: '0x5425890298aed601595a70AB815c96711a31Bc65',
-
   [SupportedChainId.ARB_SEPOLIA]: '0x75faf114eafb1bdbe2f0316df893fd58ce46aa4d',
+  [SupportedChainId.BASE_SEPOLIA]: '0x036CbD53842c5426634e7929541eC2318f3dCF7e',
 }
 
 /**
@@ -16,10 +15,9 @@ export const CHAIN_IDS_TO_USDC_ADDRESSES = {
  */
 export const CHAIN_IDS_TO_TOKEN_MESSENGER_ADDRESSES = {
   [SupportedChainId.ETH_SEPOLIA]: '0x9f3b8679c73c2fef8b59b4f3444d4e156fb70aa5',
-
   [SupportedChainId.AVAX_FUJI]: '0xeb08f243e5d3fcff26a9e38ae5520a669f4019d0',
-
   [SupportedChainId.ARB_SEPOLIA]: '0x9f3b8679c73c2fef8b59b4f3444d4e156fb70aa5',
+  [SupportedChainId.BASE_SEPOLIA]: '0x9f3B8679c73C2Fef8b59B4f3444d4e156fb70AA5',
 }
 
 /**
@@ -27,8 +25,7 @@ export const CHAIN_IDS_TO_TOKEN_MESSENGER_ADDRESSES = {
  */
 export const CHAIN_IDS_TO_MESSAGE_TRANSMITTER_ADDRESSES = {
   [SupportedChainId.ETH_SEPOLIA]: '0x7865fafc2db2093669d92c0f33aeef291086befd',
-
   [SupportedChainId.AVAX_FUJI]: '0xa9fb1b3009dcb79e2fe346c16a604b8fa8ae0a79',
-
   [SupportedChainId.ARB_SEPOLIA]: '0xacf1ceef35caac005e15888ddb8a3515c41b4872',
+  [SupportedChainId.BASE_SEPOLIA]: '0x7865fAfC2db2093669d92c0F33AeEF291086BEFD',
 }
diff --git a/src/constants/chains.ts b/src/constants/chains.ts
index e19f028..c82fffe 100644
--- a/src/constants/chains.ts
+++ b/src/constants/chains.ts
@@ -5,6 +5,7 @@ export enum Chain {
   ETH = 'ETH',
   AVAX = 'AVAX',
   ARB = 'ARB',
+  BASE = 'BASE',
 }
 
 /**
@@ -14,6 +15,7 @@ export enum SupportedChainId {
   ETH_SEPOLIA = 11155111,
   AVAX_FUJI = 43113,
   ARB_SEPOLIA = 421614,
+  BASE_SEPOLIA = 84532,
 }
 
 /**
@@ -24,6 +26,7 @@ export const SupportedChainIdHex = {
   ETH_SEPOLIA: '0xaa36a7',
   AVAX_FUJI: '0xa869',
   ARB_SEPOLIA: '0x66eee',
+  BASE_SEPOLIA: '0x14a34',
 }
 
 interface ChainToChainIdMap {
@@ -38,6 +41,7 @@ export const CHAIN_TO_CHAIN_ID: ChainToChainIdMap = {
   [Chain.ETH]: SupportedChainId.ETH_SEPOLIA,
   [Chain.AVAX]: SupportedChainId.AVAX_FUJI,
   [Chain.ARB]: SupportedChainId.ARB_SEPOLIA,
+  [Chain.BASE]: SupportedChainId.BASE_SEPOLIA,
 }
 
 interface ChainToChainNameMap {
@@ -51,6 +55,7 @@ export const CHAIN_TO_CHAIN_NAME: ChainToChainNameMap = {
   ETH: 'Ethereum',
   AVAX: 'Avalanche',
   ARB: 'Arbitrum',
+  BASE: 'Base',
 }
 
 /**
@@ -67,6 +72,7 @@ export enum DestinationDomain {
   ETH = 0,
   AVAX = 1,
   ARB = 3,
+  BASE = 6,
 }
 
 // https://eips.ethereum.org/EIPS/eip-3085
@@ -119,6 +125,18 @@ const ARB_SEPOLIA: AddEthereumChainParameter = {
   rpcUrls: ['https://arb-sepolia.g.alchemy.com/v2/demo'],
 }
 
+const BASE_SEPOLIA: AddEthereumChainParameter = {
+  chainId: SupportedChainIdHex.BASE_SEPOLIA,
+  blockExplorerUrls: ['https://sepolia.basescan.org/'],
+  chainName: 'Base Sepolia Testnet',
+  nativeCurrency: {
+    name: 'Ethereum',
+    symbol: 'ETH',
+    decimals: 18,
+  },
+  rpcUrls: ['https://sepolia.base.org'],
+}
+
 interface ChainIdToChainParameters {
   [key: string]: AddEthereumChainParameter
 }
@@ -127,4 +145,5 @@ export const CHAIN_ID_HEXES_TO_PARAMETERS: ChainIdToChainParameters = {
   [SupportedChainIdHex.ETH_SEPOLIA]: ETH_SEPOLIA,
   [SupportedChainIdHex.AVAX_FUJI]: AVAX_FUJI,
   [SupportedChainIdHex.ARB_SEPOLIA]: ARB_SEPOLIA,
+  [SupportedChainIdHex.BASE_SEPOLIA]: BASE_SEPOLIA,
 }