package commands

import (

"context"

"github.com/ledgerwatch/erigon/common/hexutil"

"github.com/ledgerwatch/erigon/crypto"

"github.com/ledgerwatch/erigon/turbo/rpchelper"

)

// Web3API provides interfaces for the web3_ RPC commands

type Web3API interface {

ClientVersion(_ context.Context) (string, error)

Sha3(_ context.Context, input hexutil.Bytes) hexutil.Bytes

}

type Web3APIImpl struct {

*BaseAPI

ethBackend rpchelper.ApiBackend

}

// NewWeb3APIImpl returns Web3APIImpl instance

func NewWeb3APIImpl(ethBackend rpchelper.ApiBackend) *Web3APIImpl {

return &Web3APIImpl{

BaseAPI: &BaseAPI{},

ethBackend: ethBackend,

}

}

// ClientVersion implements web3_clientVersion. Returns the current client version.

func (api *Web3APIImpl) ClientVersion(ctx context.Context) (string, error) {

return api.ethBackend.ClientVersion(ctx)

}

// Sha3 implements web3_sha3. Returns Keccak-256 (not the standardized SHA3-256) of the given data.

func (api *Web3APIImpl) Sha3(_ context.Context, input hexutil.Bytes) hexutil.Bytes {

return crypto.Keccak256(input)

}