PDAs y CPIs

import { PublicKey } from "@solana/web3.js";

const [poolAuthority, bump] = PublicKey.findProgramAddressSync(
  [Buffer.from("authority"), poolId.toBuffer()],
  CPMM_PROGRAM_ID,
);

// Campo real de CPMM, en un PoolState cargado con zero-copy mediante AccountLoader:
#[account(zero_copy(unsafe))]
#[repr(C, packed)]
pub struct PoolState {
    pub auth_bump: u8,
    // ... resto del estado del pool
}

// Seeds para la autoridad del pool
let authority_seeds: &[&[u8]] = &[
    b"vault_and_lp_mint_auth_seed",
    &[authority_bump],
];
let signer_seeds: &[&[&[u8]]] = &[authority_seeds];

// Construir contexto de CPI
let cpi_accounts = Transfer {
    from:      input_vault.to_account_info(),
    to:        user_ata.to_account_info(),
    authority: pool_authority.to_account_info(),
};
// Anchor 1.0 toma la Pubkey del programa aquí; la forma AccountInfo es solo 0.3x.
let cpi_ctx = CpiContext::new_with_signer(token_program.key(), cpi_accounts, signer_seeds);

// Ejecutar
token::transfer(cpi_ctx, amount)?;

// El crate es `raydium-cp-swap`; su nombre de lib — y por lo tanto la ruta `use` — es
// `raydium_cp_swap`. No hay `raydium_cpmm`.
use raydium_cp_swap::cpi::{self, accounts::Swap};

let cpi_accounts = Swap {
    payer:                order.to_account_info(),      // PDA, firmará
    authority:            pool_authority_info,
    amm_config:           amm_config_info,
    pool_state:           pool_info,
    input_token_account:  order_input_ata,
    output_token_account: order_output_ata,
    input_vault:          input_vault_info,
    output_vault:         output_vault_info,
    input_token_program:  input_token_program_info,
    output_token_program: output_token_program_info,
    input_token_mint:     input_mint_info,
    output_token_mint:    output_mint_info,
    observation_state:    observation_info,
};

let seeds = &[b"order", user.key.as_ref(), &[order.bump]];
let cpi_ctx = CpiContext::new_with_signer(
    cpmm_program.key(),     // Anchor 1.0: una Pubkey, no una AccountInfo
    cpi_accounts,
    &[seeds],
);

cpi::swap_base_input(cpi_ctx, amount_in, min_out)?;

const swapIx = await raydium.cpmm.swap({
  /* ... */
  // El SDK maneja las cuentas restantes automáticamente
});

pub struct Swap<'info> {
    // ... cuentas fijas
    // Más cuentas restantes reenviadas vía ctx.remaining_accounts
}

// Reenviar remaining_accounts al CPI
cpi::swap_base_input(
    cpi_ctx.with_remaining_accounts(ctx.remaining_accounts.to_vec()),
    amount_in,
    min_out,
)?;

import { PublicKey } from "@solana/web3.js";

const CPMM_PROGRAM_ID = new PublicKey("CPMMoo8L3F4NbTegBCKVNunggL7H1ZpdTHKxQB5qKP1C");

function computeCpmmPdas(ammConfig, mintA, mintB) {
  const [poolState, poolBump] = PublicKey.findProgramAddressSync(
    [
      Buffer.from("pool"),
      ammConfig.toBuffer(),
      mintA.toBuffer(),
      mintB.toBuffer(),
    ],
    CPMM_PROGRAM_ID,
  );

  const [authority] = PublicKey.findProgramAddressSync(
    [Buffer.from("vault_and_lp_mint_auth_seed")],
    CPMM_PROGRAM_ID,
  );

  const [vaultA] = PublicKey.findProgramAddressSync(
    [Buffer.from("pool_vault"), poolState.toBuffer(), mintA.toBuffer()],
    CPMM_PROGRAM_ID,
  );

  const [vaultB] = PublicKey.findProgramAddressSync(
    [Buffer.from("pool_vault"), poolState.toBuffer(), mintB.toBuffer()],
    CPMM_PROGRAM_ID,
  );

  const [observation] = PublicKey.findProgramAddressSync(
    [Buffer.from("observation"), poolState.toBuffer()],
    CPMM_PROGRAM_ID,
  );

  return { poolState, authority, vaultA, vaultB, observation, poolBump };
}