init

dmtp/client/hooks/useCUSDBalance.ts

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+'use client';
+
+import { getCUSDContract, getProvider } from '@/lib/contracts';
+import { useQuery } from '@tanstack/react-query';
+import { ethers } from 'ethers';
+
+export function useCUSDBalance(address: string | null) {
+  return useQuery({
+    queryKey: ['cusd-balance', address],
+    queryFn: async () => {
+      if (!address) return '0';
+
+      const provider = getProvider();
+      const cUSDContract = getCUSDContract(provider);
+      
+      const balance = await cUSDContract.balanceOf(address);
+      return ethers.formatEther(balance);
+    },
+    enabled: !!address,
+    refetchInterval: 10000, // Refetch every 10 seconds
+  });
+}
+
+export function useCUSDAllowance(owner: string | null, spender: string) {
+  return useQuery({
+    queryKey: ['cusd-allowance', owner, spender],
+    queryFn: async () => {
+      if (!owner) return '0';
+
+      const provider = getProvider();
+      const cUSDContract = getCUSDContract(provider);
+      
+      const allowance = await cUSDContract.allowance(owner, spender);
+      return ethers.formatEther(allowance);
+    },
+    enabled: !!owner,
+  });
+}