import { createPublicClient, createWalletClient, http, defineChain } from "viem";
import type { PublicClient, WalletClient, Chain } from "viem";
import { privateKeyToAccount } from "viem/accounts";
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore dotenv types resolution conflict under NodeNext
import dotenv from "dotenv";
// Load .env file if it exists (optional for development)
try {
dotenv.config();
} catch (error) {
// .env file is optional - all required variables should come from client
}
// ---------- Chain Definitions ----------
export const abstractTestnet: Chain = defineChain({
id: 11124,
name: "Abstract Testnet",
network: "abstract-testnet",
nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
rpcUrls: {
default: {
http: [process.env.ABSTRACT_RPC_URL ?? "https://api.testnet.abs.xyz"],
},
public: {
http: [process.env.ABSTRACT_RPC_URL ?? "https://api.testnet.abs.xyz"],
},
},
});
export const abstractMainnet: Chain = defineChain({
id: 2741,
name: "Abstract Mainnet",
network: "abstract-mainnet",
nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
rpcUrls: {
default: {
http: [process.env.ABSTRACT_RPC_URL ?? "https://api.mainnet.abs.xyz/"],
},
public: {
http: [process.env.ABSTRACT_RPC_URL ?? "https://api.mainnet.abs.xyz/"],
},
},
});
// Choose chain based on env (default: testnet)
function getChain(): Chain {
const target = (process.env.TESTNET ?? "true").toLowerCase() === "true" ? "testnet" : "mainnet";
return target === "mainnet" ? abstractMainnet : abstractTestnet;
}
// ---------- Singleton Clients ----------
let _publicClient: PublicClient | undefined;
let _walletClient: WalletClient | undefined;
export function getPublicClient(): PublicClient {
if (!_publicClient) {
const chain = getChain();
_publicClient = createPublicClient({
chain,
transport: http(chain.rpcUrls.default.http[0]),
});
}
return _publicClient;
}
export function getWalletClient(): WalletClient {
if (!_walletClient) {
let pk = process.env.ABSTRACT_PRIVATE_KEY ?? process.env.PRIVATE_KEY;
if (!pk) {
throw new Error("ABSTRACT_PRIVATE_KEY env variable is required");
}
if (!pk.startsWith("0x")) {
pk = `0x${pk}`;
}
const account = privateKeyToAccount(pk as `0x${string}`);
const chain = getChain();
_walletClient = createWalletClient({
chain,
transport: http(chain.rpcUrls.default.http[0]),
account,
});
}
return _walletClient;
}
