add wallet connect to solana defaults

packages/adapters/default-solana-adapter/package.json

@@ -20,6 +20,7 @@
     "pre-commit": "lint-staged --cwd ."
   },
   "dependencies": {
+    "@web3auth/wallet-connect-v2-adapter": "^9.1.0",
     "@solana/wallet-standard-features": "^1.2.0",
     "@solana/web3.js": "^1.95.3",
     "@wallet-standard/app": "^1.0.1",

packages/adapters/default-solana-adapter/src/index.ts

@@ -1,9 +1,31 @@
-import { IAdapter, IWeb3AuthCoreOptions } from "@web3auth/base";
+import { CHAIN_NAMESPACES, CustomChainConfig, getChainConfig, IAdapter, IWeb3AuthCoreOptions, WalletInitializationError } from "@web3auth/base";
+import { WalletConnectV2Adapter } from "@web3auth/wallet-connect-v2-adapter";
 
 import { getInjectedAdapters } from "./injectedAdapters";
 
 export const getDefaultExternalAdapters = (params: { options: IWeb3AuthCoreOptions }): IAdapter<unknown>[] => {
-  return getInjectedAdapters(params);
+  const { options } = params;
+  const { clientId, chainConfig, sessionTime, web3AuthNetwork, useCoreKitKey } = options;
+  if (!Object.values(CHAIN_NAMESPACES).includes(chainConfig.chainNamespace))
+    throw WalletInitializationError.invalidParams(`Invalid chainNamespace: ${chainConfig.chainNamespace}`);
+  const finalChainConfig = {
+    ...(getChainConfig(chainConfig.chainNamespace, chainConfig?.chainId) as CustomChainConfig),
+    ...(chainConfig || {}),
+  };
+
+  const wcv2Adapter = new WalletConnectV2Adapter({
+    chainConfig: finalChainConfig,
+    clientId,
+    sessionTime,
+    web3AuthNetwork,
+    useCoreKitKey,
+    adapterSettings: {
+      walletConnectInitOptions: {},
+    },
+  });
+  const injectedProviders = getInjectedAdapters({ options });
+
+  return [...injectedProviders, wcv2Adapter];
 };
 
 export { getInjectedAdapters };