Initial commit with 🏗️ Scaffold-ETH 2 @ 1.0.2

packages/nextjs/hooks/scaffold-eth/useTargetNetwork.ts

@@ -0,0 +1,24 @@
+import { useEffect, useMemo } from "react";
+import { useAccount } from "wagmi";
+import scaffoldConfig from "~~/scaffold.config";
+import { useGlobalState } from "~~/services/store/store";
+import { ChainWithAttributes } from "~~/utils/scaffold-eth";
+import { NETWORKS_EXTRA_DATA } from "~~/utils/scaffold-eth";
+
+/**
+ * Retrieves the connected wallet's network from scaffold.config or defaults to the 0th network in the list if the wallet is not connected.
+ */
+export function useTargetNetwork(): { targetNetwork: ChainWithAttributes } {
+  const { chain } = useAccount();
+  const targetNetwork = useGlobalState(({ targetNetwork }) => targetNetwork);
+  const setTargetNetwork = useGlobalState(({ setTargetNetwork }) => setTargetNetwork);
+
+  useEffect(() => {
+    const newSelectedNetwork = scaffoldConfig.targetNetworks.find(targetNetwork => targetNetwork.id === chain?.id);
+    if (newSelectedNetwork && newSelectedNetwork.id !== targetNetwork.id) {
+      setTargetNetwork({ ...newSelectedNetwork, ...NETWORKS_EXTRA_DATA[newSelectedNetwork.id] });
+    }
+  }, [chain?.id, setTargetNetwork, targetNetwork.id]);
+
+  return useMemo(() => ({ targetNetwork }), [targetNetwork]);
+}