solace-bg-dubai/frontend/lib/web3/config.ts

import { createConfig, http, webSocket, type Config } from "wagmi";
import { mainnet, sepolia } from "wagmi/chains";
import { defineChain } from "viem";
import { walletConnect, injected, metaMask } from "wagmi/connectors";
import {
  getWalletConnectProjectId,
  isValidWalletConnectProjectId,
} from "./walletconnect";
import { CHAIN138_PUBLIC } from "./chain138-public";

function buildConnectors() {
  const projectId = getWalletConnectProjectId();
  if (isValidWalletConnectProjectId(projectId)) {
    return [injected(), metaMask(), walletConnect({ projectId })];
  }
  return [injected(), metaMask()];
}

const chain138HttpRpc =
  process.env.NEXT_PUBLIC_CHAIN138_RPC_URL?.trim() || CHAIN138_PUBLIC.httpRpc;

const chain138WsRpc = process.env.NEXT_PUBLIC_CHAIN138_WS_URL?.trim() || "";

const chain138Explorer =
  process.env.NEXT_PUBLIC_CHAIN138_EXPLORER_URL?.trim() ||
  CHAIN138_PUBLIC.explorer;

function chain138Transport() {
  if (chain138WsRpc.startsWith("wss://")) {
    return webSocket(chain138WsRpc);
  }
  return http(chain138HttpRpc);
}

const chain138 = defineChain({
  id: 138,
  name: "Solace Chain 138",
  nativeCurrency: {
    decimals: 18,
    name: "Ether",
    symbol: "ETH",
  },
  rpcUrls: {
    default: {
      http: [chain138HttpRpc],
      ...(chain138WsRpc.startsWith("wss://")
        ? { webSocket: [chain138WsRpc] }
        : {}),
    },
  },
  blockExplorers: {
    default: {
      name: "Chain 138 Explorer",
      url: chain138Explorer,
    },
  },
  testnet: false,
});

let wagmiConfig: Config | undefined;

export function getConfig(): Config {
  if (!wagmiConfig) {
    wagmiConfig = createConfig({
      chains: [chain138, mainnet, sepolia],
      connectors: buildConnectors(),
      transports: {
        [chain138.id]: chain138Transport(),
        [mainnet.id]: http(),
        [sepolia.id]: http(process.env.NEXT_PUBLIC_SEPOLIA_RPC_URL),
      },
      ssr: false,
    });
  }
  return wagmiConfig;
}

declare module "wagmi" {
  interface Register {
    config: ReturnType<typeof getConfig>;
  }
}