Solana Quote Send

quotesend.ts

import { Options, addressToBytes32 } from "@layerzerolabs/lz-v2-utilities";
import { mplToolbox } from "@metaplex-foundation/mpl-toolbox";
import { publicKey, signerIdentity } from "@metaplex-foundation/umi";
import { createUmi } from "@metaplex-foundation/umi-bundle-defaults";
import {} from "@metaplex-foundation/umi-rpc-web3js";
import { createSignerFromWalletAdapter } from "@metaplex-foundation/umi-signer-wallet-adapters";
import { toWeb3JsInstruction } from "@metaplex-foundation/umi-web3js-adapters";
import { solanaDevnetChain, solanaMainnetChain } from "@packages-lib/constants";
import {
  isSolanaDevnetEndpoint,
  isSolanaEndpoint,
} from "@packages-lib/front-end-helpers";
import { TOKEN_PROGRAM_ID } from "@solana/spl-token";
import { WalletContextState, useWallet } from "@solana/wallet-adapter-react";
import { Connection, Transaction, PublicKey } from "@solana/web3.js";
import { useMutation, useQuery } from "@tanstack/react-query";
import { formatUnits, parseUnits } from "ethers/lib/utils";

import { quoteSend } from "./solana-oft/umi/instructions/quoteSend";
import { send } from "./solana-oft/umi/instructions/send";
import { createOFTProgramRepo } from "./solana-oft/umi/programs";
import { addComputeUnitInstructions } from "./solana-oft/umi/programs/lz";
import { LZBridgeTxHandlerProps } from "./types";

const COMPUTE_UNIT_PRICE_SCALE_FACTOR = 4;

// TODO: pull this from the db asset
const MINT = "CiuH3kcRXJhdikbZsjfpvFaMaGVSCmFodWcwizjhhXcY";
const ESCROW = "N3pbaDnicH7Z8o4HQc7QUx9MR7s8cNrzm2Rnd3XPmia";
const OFT_PROGRAM_ID = "FGrGEthyEeu5vmb84u7TG6HGWeHUrpim7y8jDCjrxCsT";
const OFT_STORE = "UWVUEwjkUWRMSfrsUgi37KoDEGS3ApBPMw3sLDmxxtw";
const PEER = "Fte168xVZNfWBLYhrmSBqXY8XSgbVzeC5EKZjHzSr5JU";
const TOKEN_SOURCE = "J7iKVtDngK8jr5ZZdSi9GNexan74V2N6cPsWyHbo4kZD"; // TODO: pull this dynamically
const EVENT_AUTHORITY = "Ak4eNSq749m1CtghNh8bjbj5MrreYGuHLLXevgdeiSki"; // TODO: not sure where this comes from

export const quoteFromSolana = async (
  solanaWallet: WalletContextState,
  { wallet, amount, fromChain, toChain }: LZBridgeTxHandlerProps
): Promise<{ nativeFee: bigint; lzTokenFee: bigint }> => {
  if (!amount || !fromChain || !toChain || !wallet || !solanaWallet) {
    return { nativeFee: BigInt(0), lzTokenFee: BigInt(0) };
  }

  const { rpc } = isSolanaDevnetEndpoint(toChain.lzChainId)
    ? solanaDevnetChain
    : solanaMainnetChain;
  const umi = createUmi(rpc, { commitment: "processed" }).use(mplToolbox());
  const signer = createSignerFromWalletAdapter(solanaWallet);
  umi.use(signerIdentity(signer));

  const params = {
    tokenMint: publicKey(MINT),
    peer: publicKey(PEER),
    oftStore: publicKey(OFT_STORE),
    params: {
      dstEid: toChain.lzChainId,
      to: Array.from(addressToBytes32(wallet.address)),
      amountLd: parseUnits(amount.toString(), 9).toBigInt(),
      minAmountLd: BigInt(1),
      options: Options.newOptions().toBytes(),
      composeMsg: null,
      payInLzToken: false,
    },
  };

  const txBuilder = quoteSend({ programs: createOFTProgramRepo() }, params);

  const ix = toWeb3JsInstruction(txBuilder.getInstructions()[0]);

  const connection = new Connection(umi.rpc.getEndpoint(), "confirmed");

  const tx = new Transaction().add(ix);
  tx.feePayer = new PublicKey(signer.publicKey);
  tx.recentBlockhash = (await connection.getLatestBlockhash()).blockhash;

  const result = await connection.simulateTransaction(tx, undefined, true);
  return {
    nativeFee: BigInt(0),
    lzTokenFee: BigInt(0),
  };
};