transact_spl

pub fn transact_spl(
    ctx: Context<TransactSpl>,
    proof: Proof,
    ext_data_minified: ExtDataMinified,
    encrypted_output1: Vec<u8>,
    encrypted_output2: Vec<u8>
) -> Result<()>

import * as anchor from "@coral-xyz/anchor";
import { PublicKey } from "@solana/web3.js";
import { getAssociatedTokenAddress, TOKEN_PROGRAM_ID, ASSOCIATED_TOKEN_PROGRAM_ID } from "@solana/spl-token";

const depositAmount = 1000000; // 1 token with 6 decimals
const depositFee = 0;

// Get token accounts
const signerTokenAccount = await getAssociatedTokenAddress(
  mintPublicKey,
  userPublicKey
);

const recipientTokenAccount = await getAssociatedTokenAddress(
  mintPublicKey,
  recipientPublicKey
);

const treeAta = await getAssociatedTokenAddress(
  mintPublicKey,
  globalConfigPDA,
  true // allowOwnerOffCurve
);

const feeRecipientAta = await getAssociatedTokenAddress(
  mintPublicKey,
  feeRecipientPublicKey
);

// Get token-specific tree PDA
const [splTreePDA] = PublicKey.findProgramAddressSync(
  [Buffer.from("merkle_tree"), mintPublicKey.toBuffer()],
  program.programId
);

// Generate proof
const proof = await generateProof(inputs, outputs, extData);

const extDataMinified = {
  extAmount: new anchor.BN(depositAmount),
  fee: new anchor.BN(depositFee)
};

// Execute SPL deposit
const tx = await program.methods
  .transactSpl(
    proof,
    extDataMinified,
    encryptedOutput1,
    encryptedOutput2
  )
  .accounts({
    treeAccount: splTreePDA,
    nullifier0: nullifier0PDA,
    nullifier1: nullifier1PDA,
    nullifier2: nullifier2PDA,
    nullifier3: nullifier3PDA,
    globalConfig: globalConfigPDA,
    signer: userPublicKey,
    recipient: recipientPublicKey,
    mint: mintPublicKey,
    signerTokenAccount: signerTokenAccount,
    recipientTokenAccount: recipientTokenAccount,
    treeAta: treeAta,
    feeRecipientAta: feeRecipientAta,
    tokenProgram: TOKEN_PROGRAM_ID,
    associatedTokenProgram: ASSOCIATED_TOKEN_PROGRAM_ID,
    systemProgram: anchor.web3.SystemProgram.programId
  })
  .signers([userKeypair])
  .rpc();

pub struct SplCommitmentData {
    pub index: u64,
    pub mint_address: Pubkey,
    pub commitment: [u8; 32],
    pub encrypted_output: Vec<u8>,
}