solana-agent-kit/src/tools/tensor_trade.ts

import { SolanaAgentKit } from "../index";
import { TensorSwapSDK } from "@tensor-oss/tensorswap-sdk";
import { PublicKey, Transaction } from "@solana/web3.js";
import { AnchorProvider, Wallet } from "@coral-xyz/anchor";
import { BN } from "bn.js";
import { getAssociatedTokenAddress, TOKEN_PROGRAM_ID,getAccount } from '@solana/spl-token';

export async function listNFTForSale(
  agent: SolanaAgentKit,
  nftMint: PublicKey,
  price: number,
  expirySeconds?: number
): Promise<string> {
  try {
    if (!PublicKey.isOnCurve(nftMint)) {
      throw new Error('Invalid NFT mint address');
    }

    const mintInfo = await agent.connection.getAccountInfo(nftMint);
    if (!mintInfo) {
      throw new Error(`NFT mint ${nftMint.toString()} does not exist`);
    }

    const ata = await getAssociatedTokenAddress(
      nftMint,
      agent.wallet_address
    );

    try {
      const tokenAccount = await getAccount(
        agent.connection,
        ata
      );
      
      if (!tokenAccount || tokenAccount.amount <= 0) {
        throw new Error(`You don't own this NFT (${nftMint.toString()})`);
      }
    } catch (e) {
      throw new Error(`No token account found for mint ${nftMint.toString()}. Make sure you own this NFT.`);
    }

    const provider = new AnchorProvider(
      agent.connection,
      new Wallet(agent.wallet),
      AnchorProvider.defaultOptions()
    );
    
    const tensorSwapSdk = new TensorSwapSDK({ provider });
    const priceInLamports = new BN(price * 1e9);
    const nftSource = await getAssociatedTokenAddress(nftMint, agent.wallet_address);

    const { tx } = await tensorSwapSdk.list({
      nftMint,
      nftSource,
      owner: agent.wallet_address,
      price: priceInLamports,
      tokenProgram: TOKEN_PROGRAM_ID,
      payer: agent.wallet_address
    });

    const transaction = new Transaction();
    transaction.add(...tx.ixs);
    return await agent.connection.sendTransaction(transaction, [agent.wallet, ...tx.extraSigners]);
  } catch (error: any) {
    console.error("Full error details:", error);
    throw error;
  }
}

export async function buyNFT(
  agent: SolanaAgentKit,
  nftMint: PublicKey,
  maxPrice: number
): Promise<string> {
  const provider = new AnchorProvider(
    agent.connection,
    new Wallet(agent.wallet),
    AnchorProvider.defaultOptions()
  );
  
  const tensorSwapSdk = new TensorSwapSDK({ provider });
  const maxPriceInLamports = new BN(maxPrice * 1e9);
  const nftBuyerAcc = await getAssociatedTokenAddress(nftMint, agent.wallet_address);

  const { tx } = await tensorSwapSdk.buySingleListingT22({
    nftMint,
    nftBuyerAcc,
    owner: agent.wallet_address,
    buyer: agent.wallet_address,
    maxPrice: maxPriceInLamports,
    takerBroker: null,
    compute: null,
    priorityMicroLamports: null,
    transferHook: null
  });

  const transaction = new Transaction();
  transaction.add(...tx.ixs);
  return await agent.connection.sendTransaction(transaction, [agent.wallet, ...tx.extraSigners]);
}

export async function cancelListing(
  agent: SolanaAgentKit,
  nftMint: PublicKey
): Promise<string> {
  const provider = new AnchorProvider(
    agent.connection,
    new Wallet(agent.wallet),
    AnchorProvider.defaultOptions()
  );
  
  const tensorSwapSdk = new TensorSwapSDK({ provider });
  const nftDest = await getAssociatedTokenAddress(
    nftMint, 
    agent.wallet_address,
    false,
    TOKEN_PROGRAM_ID
  );
  
  const { tx } = await tensorSwapSdk.delist({
    nftMint,
    nftDest,
    owner: agent.wallet_address,
    tokenProgram: TOKEN_PROGRAM_ID,
    payer: agent.wallet_address,
    authData: null
  });

  const transaction = new Transaction();
  transaction.add(...tx.ixs);
  return await agent.connection.sendTransaction(transaction, [agent.wallet, ...tx.extraSigners]);
}