Crosschain rUSD Yield

const BERACHAIN_ID = 80094;
const ETHEREUM_ID = 1;

// Common addresses
const WALLET_ADDRESS = "0x93621DCA56fE26Cdee86e4F6B18E116e9758Ff11"; // User wallet

// Token addresses
const USDC_BERACHAIN = "0x549943e04f40284185054145c6E4e9568C1D3241";
const USDC_ETHEREUM = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";
const RUSD_ETHEREUM = "0x09D4214C03D01F49544C0448DBE3A27f768F2b34";
const RUSD_BERACHAIN = "0x09D4214C03D01F49544C0448DBE3A27f768F2b34";

// Protocol addresses
const RESERVOIR_MINTING_CONTRACT =
  "0x4809010926aec940b550D34a46A52739f996D75D";
const EULER_VAULT_E_RUSD_BERACHAIN =
  "0x109D6D1799f62216B4a7b0c6e245844AbD4DD281"; // Euler vault for e-rUSD on Berachain (need actual address)

const client = new EnsoClient({
  apiKey: process.env.ENSO_API_KEY!,
});

const usdcBeraToEthPools = await client.getLayerZeroPool({
  chainId: BERACHAIN_ID,
  token: USDC_BERACHAIN,
  destinationChainId: ETHEREUM_ID + "",
});

const rusdEthToBeraPools = await client.getLayerZeroPool({
  chainId: ETHEREUM_ID,
  token: RUSD_ETHEREUM,
  destinationChainId: BERACHAIN_ID + "",
});

if (!(usdcBeraToEthPools.length && usdcBeraToEthPools.length)) {
  throw new Error("Required pools not available");
}

const bundle = await client.getBundleData(
  {
    chainId: BERACHAIN_ID,
    fromAddress: WALLET_ADDRESS,
    spender: WALLET_ADDRESS,
    routingStrategy: "router",
  },
  [
    {
      protocol: "stargate",
      action: "bridge",
      args: {
        primaryAddress: rusdEthToBeraPools[0].pool as Address,
        destinationChainId: ETHEREUM_ID,
        tokenIn: USDC_BERACHAIN,
        amountIn: parseUnits("1000", 6).toString(), // 1000 USDC
        receiver: WALLET_ADDRESS,
        callback: [
          // Step 1: Check USDC balance on Ethereum after bridge
          {
            protocol: "enso",
            action: "balance",
            args: {
              token: USDC_ETHEREUM,
            },
          },
          // Step 2: Mint e-rUSD using bridged USDC on Ethereum
          {
            protocol: "reservoir",
            action: "deposit",
            args: {
              primaryAddress: RESERVOIR_MINTING_CONTRACT,
              tokenIn: USDC_ETHEREUM,
              tokenOut: RUSD_ETHEREUM,
              amountIn: { useOutputOfCallAt: 0 }, // Use USDC from balance check
              receiver: WALLET_ADDRESS,
            },
          },
          // Step 3: Bridge newly minted e-rUSD back to Berachain
          {
            protocol: "stargate",
            action: "bridge",
            args: {
              primaryAddress: rusdEthToBeraPools[0].pool as Address,
              destinationChainId: BERACHAIN_ID,
              tokenIn: RUSD_ETHEREUM,
              amountIn: { useOutputOfCallAt: 1 }, // Use e-rUSD from minting
              receiver: WALLET_ADDRESS,
              // Callback executes on Berachain after e-rUSD arrives
              callback: [
                // Step 4: Check e-rUSD balance on Berachain
                {
                  protocol: "enso",
                  action: "balance",
                  args: {
                    token: RUSD_BERACHAIN,
                  },
                },
                // Step 5: Deposit e-rUSD into Euler vault on Berachain
                {
                  protocol: "euler-v2",
                  action: "deposit",
                  args: {
                    primaryAddress: EULER_VAULT_E_RUSD_BERACHAIN,
                    tokenIn: RUSD_BERACHAIN,
                    tokenOut: EULER_VAULT_E_RUSD_BERACHAIN, // ERC4626 vault token
                    amountIn: { useOutputOfCallAt: 0 }, // Use e-rUSD from balance check
                    receiver: WALLET_ADDRESS,
                  },
                },
              ],
            },
          },
        ],
      },
    },
  ]
);