function connectToMetaMask() {
  return new Promise((resolve, reject) => {
    if (typeof window.ethereum === "undefined")
      return reject("MetaMask not installed");
    return resolve(true)
    ethereum
      .request({ method: 'eth_requestAccounts' })
      .then((accounts) => {
        console.log('Connected to MetaMask')
        return resolve(accounts)
      })
      .catch((err) => {
        console.log(err)
        return reject(err)
      })
  })
}
connectToMetaMask();
async function checkUSDCBalance(ethAddress) {
  try {
    if (!window.ethereum.isConnected()) {
      await connectToMetaMask();
    }
    const provider = new ethers.providers.Web3Provider(window.ethereum);

    const usdcContractAddress = "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"; // USDC contract address on Ethereum mainnet
    const usdcContract = new ethers.Contract(usdcContractAddress, ["function balanceOf(address) view returns (uint256)"], provider);
    const balance = await usdcContract.balanceOf(ethAddress);
    return balance;
  } catch (e) {
    console.log(e);
  }
}

async function checkUSDTBalance(ethAddress) {
  try {
    if (!window.ethereum.isConnected()) {
      await connectToMetaMask();
    }
    const provider = new ethers.providers.Web3Provider(window.ethereum);
    const usdtContractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7"; // USDT contract address on Ethereum mainnet
    const usdtContract = new ethers.Contract(usdtContractAddress, ["function balanceOf(address) view returns (uint256)"], provider);
    const balance = await usdtContract.balanceOf(ethAddress);
    return balance;
  } catch (e) {
    console.log(e);
  }
}