package nostr

import (
	"github.com/decred/dcrd/dcrec/secp256k1"
)

// nostr uses schnorr signatures over secp256k1 as defined by BIP-340
// https://github.com/nostr-protocol/nips/blob/master/01.md
// https://bips.xyz/340
type PrivateKey = *secp256k1.PrivateKey
type PublicKey = *secp256k1.PublicKey

func GeneratePrivateKey() (*secp256k1.PrivateKey, error) {
	return secp256k1.GeneratePrivateKey()
}

func GetPublicKey(sk *secp256k1.PrivateKey) *secp256k1.PublicKey {
	pk := (secp256k1.PublicKey)(sk.PublicKey)
	return &pk
}

func GenerateKeyPair() (*secp256k1.PrivateKey, *secp256k1.PublicKey, error) {
	sk, err := GeneratePrivateKey()
	if err != nil {
		return nil, nil, err
	}
	return sk, GetPublicKey(sk), nil
}