Privy Agent Tanstack Starter

import { useSolanaWallets } from '@privy-io/react-auth';
import { SolanaAgentKit, createVercelAITools } from 'solana-agent-kit';
import TokenPlugin from '@solana-agent-kit/plugin-token';
import { Connection, PublicKey } from '@solana/web3.js';

export function useSolanaAgent() {
  // Get Solana wallets from Privy
  const { wallets, ready } = useSolanaWallets();
  
  // Create agent when wallet is ready
  const agent = useMemo(() => {
    if (ready && wallets.length > 0) {
      const wallet = wallets[0];
      
      return new SolanaAgentKit(
        {
          publicKey: new PublicKey(wallet.address),
          
          // Handle transaction signing through Privy
          signTransaction: async (tx) => {
            return await wallet.signTransaction(tx);
          },
          
          // Handle message signing through Privy
          signMessage: async (msg) => {
            return await wallet.signMessage(msg);
          },
          
          // Handle transaction sending
          sendTransaction: async (tx) => {
            const connection = new Connection(
              import.meta.env.VITE_RPC_URL,
              'confirmed'
            );
            return await wallet.sendTransaction(tx, connection);
          },
          
          // Handle multiple transaction signing
          signAllTransactions: async (txs) => {
            return await wallet.signAllTransactions(txs);
          },
        },
        import.meta.env.VITE_RPC_URL,
        {}
      ).use(TokenPlugin);
    }
    
    return null;
  }, [wallets, ready]);
  
  // Create tools for AI integration
  const tools = useMemo(() => {
    if (agent) {
      return createVercelAITools(agent, agent.actions);
    }
    return null;
  }, [agent]);
  
  return { agent, tools, isReady: ready && wallets.length > 0 };
}