import { createPublicClient, http } from 'viem';
import { arbitrumSepolia } from 'viem/chains';

const CONFIGURATOR_ADDRESS = '0x488409CE9A3Fcd8EbD373dCb7e025cF8AB96fcdc';

// ERC-1967 标准存储槽
const IMPLEMENTATION_SLOT = '0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc';

const publicClient = createPublicClient({
  chain: arbitrumSepolia,
  transport: http('https://sepolia-rollup.arbitrum.io/rpc')
});

async function getImplementation() {
  console.log('🔍 查找代理合约的实现地址\n');

  try {
    // 读取 ERC-1967 实现槽
    const slot = await publicClient.getStorageAt({
      address: CONFIGURATOR_ADDRESS,
      slot: IMPLEMENTATION_SLOT
    });

    if (slot && slot !== '0x' + '0'.repeat(64)) {
      // 从存储槽中提取地址（去掉前面的0）
      const implementationAddress = '0x' + slot.slice(-40);
      console.log('✅ 找到实现合约:');
      console.log(`   代理合约 (Configurator): ${CONFIGURATOR_ADDRESS}`);
      console.log(`   实现合约 (Implementation): ${implementationAddress}`);
      console.log(`\n📊 查看实现合约源码:`);
      console.log(`   https://sepolia.arbiscan.io/address/${implementationAddress}#code`);
      console.log(`\n💡 提示: 需要使用实现合约的 ABI，但调用代理合约的地址`);
    } else {
      console.log('❌ 未找到实现地址');
    }
  } catch (error) {
    console.error('❌ 错误:', error.message);
  }
}

getImplementation();