// VulcanizeDB
// Copyright © 2018 Vulcanize

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package crypto

import (
	"github.com/ethereum/go-ethereum/crypto"
	"github.com/ethereum/go-ethereum/p2p/discv5"
)

type PublicKeyParser interface {
	ParsePublicKey(privateKey string) (string, error)
}

type EthPublicKeyParser struct{}

func (EthPublicKeyParser) ParsePublicKey(privateKey string) (string, error) {
	np, err := crypto.HexToECDSA(privateKey)
	if err != nil {
		return "", err
	}
	pubKey := discv5.PubkeyID(&np.PublicKey)
	return pubKey.String(), nil
}