use commonware_codec::{EncodeSize, FixedSize, Write};
use commonware_cryptography::{
    bls12381::primitives::{poly, variant::MinSig},
    PublicKey,
};

pub const ACK_NAMESPACE: &[u8] = b"_COMMONWARE_DKG_ACK_";

/// Create a payload for acking a secret.
pub fn payload<P: PublicKey>(round: u64, dealer: &P, commitment: &poly::Public<MinSig>) -> Vec<u8> {
    let mut payload = Vec::with_capacity(u64::SIZE + P::SIZE + commitment.encode_size());
    round.write(&mut payload);
    dealer.write(&mut payload);
    commitment.write(&mut payload);
    payload
}