Add linea propagate fee calculation

package.json

@@ -28,6 +28,7 @@
     "@arbitrum/sdk": "3.1.3",
     "@connext/nxtp-adapters-subgraph": "2.0.0",
     "@connext/nxtp-utils": "2.0.4",
+    "@consensys/linea-sdk": "0.1.6",
     "@eth-optimism/sdk": "2.1.0",
     "@flashbots/ethers-provider-bundle": "0.6.2",
     "@keep3r-network/keeper-scripting-utils": "1.1.0",

src/helpers/propagate/index.ts

@@ -2,4 +2,4 @@ export {getPropagateParameters as getPropagateParametersArbitrum} from './arbitr
 export {getPropagateParameters as getPropagateParametersBnb} from './bnb';
 export {getPropagateParameters as getPropagateParametersGnosis} from './gnosis';
 export {getPropagateParameters as getPropagateParametersZkSync} from './zksync';
-export {getPropagateParameters as getPropagateParametersConsensys} from './consensys';
+export {getPropagateParameters as getPropagateParametersLinea} from './linea';

src/helpers/propagate/linea.ts

@@ -0,0 +1,25 @@
+import {BigNumber} from 'ethers';
+import {type InitialSetup, type ExtraPropagateParameters} from 'src/utils/types';
+import {LineaSDK} from '@consensys/linea-sdk';
+
+export const getPropagateParameters = async ({lineaProvider, provider, environment}: InitialSetup): Promise<ExtraPropagateParameters> => {
+  // Postman Fee = target layer gas price * (gas estimated + gas limit surplus) * margin.
+  // The target layer gas price is eth_gasPrice on the target layer, gas estimated = 100,000, gas limit surplus = 6000, and margin = 2.
+  const sdk = new LineaSDK({
+    l1RpcUrl: provider.connection.url, // L1 rpc url
+    l2RpcUrl: lineaProvider.connection.url, // L2 rpc url
+    network: environment === 'mainnet' ? 'linea-mainnet' : 'linea-goerli', // Network you want to interact with (either linea-mainnet or linea-goerli)
+    mode: 'read-only', // Contract wrapper class mode (read-only or read-write), read-only: only read contracts state, read-write: read contracts state and claim messages
+  });
+  const l2Messenger = sdk.getL2Contract();
+  const {maxFeePerGas: gasPrice} = await l2Messenger.get1559Fees();
+
+  // On linea-goerli claimMessage gasLimit was 83717
+  // Source: https://goerli.lineascan.build/tx/0x4c477dfcbc22cd99b461cfe714a6ad60796331d3c13e55a74a6de51c3cd9aab6
+  const gasLimit = BigNumber.from('120000');
+  const margin = BigNumber.from(1);
+
+  const fee = gasPrice.mul(gasLimit).mul(margin).toString();
+
+  return {connector: '', fee, encodedData: '0x'};
+};

src/init-propagate.ts

@@ -17,12 +17,14 @@ const PRIORITY_FEE = 2e9;
   const flashbotsProviderUrl = getEnvVariable('FLASHBOTS_PROVIDER_URL');
   const provider = new providers.JsonRpcProvider(getEnvVariable('RPC_HTTPS_URI'));
   const arbProvider = new providers.JsonRpcProvider(getEnvVariable('ARBITRUM_RPC_URI'));
+  const lineaProvider = new providers.JsonRpcProvider(getEnvVariable('LINEA_RPC_URI'));
   const txSigner = new Wallet(getEnvVariable('TX_SIGNER_PRIVATE_KEY'), provider);
   const bundleSigner = new Wallet(getEnvVariable('BUNDLE_SIGNER_PRIVATE_KEY'), provider);
 
   const setup: InitialSetup = {
     provider,
     arbProvider,
+    lineaProvider,
     txSigner,
     bundleSigner,
     environment: getEnvVariable('ENVIRONMENT') as Environment,

src/utils/propagate.ts

@@ -3,7 +3,7 @@ import {BigNumber, constants} from 'ethers';
 import {
   getPropagateParametersArbitrum,
   getPropagateParametersBnb,
-  getPropagateParametersConsensys,
+  getPropagateParametersLinea,
   getPropagateParametersGnosis,
   getPropagateParametersZkSync,
 } from '../helpers/propagate';
@@ -14,11 +14,12 @@ export const getParametersForDomainFn: Record<string, (setup: InitialSetup) => P
   '1634886255': getPropagateParametersArbitrum,
   '6450786': getPropagateParametersBnb,
   '6778479': getPropagateParametersGnosis,
+  '1818848877': getPropagateParametersLinea,
 
   // Testnet
   '1734439522': getPropagateParametersArbitrum,
   '2053862260': getPropagateParametersZkSync,
-  '1668247156': getPropagateParametersConsensys,
+  '1668247156': getPropagateParametersLinea,
 };
 
 export async function populateParametersForDomains(

src/utils/types/index.ts

@@ -3,6 +3,7 @@ import type {providers, Wallet} from 'ethers';
 export type InitialSetup = {
   provider: providers.JsonRpcProvider | providers.WebSocketProvider;
   arbProvider: providers.JsonRpcProvider | providers.WebSocketProvider;
+  lineaProvider: providers.JsonRpcProvider | providers.WebSocketProvider;
   txSigner: Wallet;
   bundleSigner: Wallet;
   environment: 'staging' | 'testnet' | 'mainnet';