import type { ConfirmOptions, Connection, PublicKey, Signer } from '@solana/web3.js';
import { Keypair, sendAndConfirmTransaction, SystemProgram, Transaction } from '@solana/web3.js';
import { TOKEN_PROGRAM_ID } from '../constants.js';
import { createInitializeMultisigInstruction } from '../instructions/initializeMultisig.js';
import { getMinimumBalanceForRentExemptMultisig, MULTISIG_SIZE } from '../state/multisig.js';
/**
* Create and initialize a new multisig
*
* @param connection Connection to use
* @param payer Payer of the transaction and initialization fees
* @param signers Full set of signers
* @param m Number of required signatures
* @param keypair Optional keypair, defaulting to a new random one
* @param confirmOptions Options for confirming the transaction
* @param programId SPL Token program account
*
* @return Address of the new multisig
*/
export async function createMultisig(
connection: Connection,
payer: Signer,
signers: PublicKey[],
m: number,
keypair = Keypair.generate(),
confirmOptions?: ConfirmOptions,
programId = TOKEN_PROGRAM_ID,
): Promise<PublicKey> {
const lamports = await getMinimumBalanceForRentExemptMultisig(connection);
const transaction = new Transaction().add(
SystemProgram.createAccount({
fromPubkey: payer.publicKey,
newAccountPubkey: keypair.publicKey,
space: MULTISIG_SIZE,
lamports,
programId,
}),
createInitializeMultisigInstruction(keypair.publicKey, signers, m, programId),
);
await sendAndConfirmTransaction(connection, transaction, [payer, keypair], confirmOptions);
return keypair.publicKey;
}