1package eth
 2
 3import (
 4	"fmt"
 5
 6	"github.com/ethereum/go-ethereum/accounts"
 7	ethKeystore "github.com/ethereum/go-ethereum/accounts/keystore"
 8	ethCommon "github.com/ethereum/go-ethereum/common"
 9	"github.com/ethereum/go-ethereum/ethclient"
10)
11
12var errTODO = fmt.Errorf("TODO: Not implemented yet")
13
14// ClientInterface is the eth Client interface used by hermez-node modules to
15// interact with Ethereum Blockchain and smart contracts.
16type ClientInterface interface {
17	EthereumInterface
18	RollupInterface
19	AuctionInterface
20}
21
22//
23// Implementation
24//
25
26// Client is used to interact with Ethereum and the Hermez smart contracts.
27type Client struct {
28	EthereumClient
29	AuctionClient
30	RollupClient
31}
32
33// TokenConfig is used to define the information about token
34type TokenConfig struct {
35	Address ethCommon.Address
36	Name    string
37}
38
39// RollupConfig is the configuration for the Rollup smart contract interface
40type RollupConfig struct {
41	Address ethCommon.Address
42}
43
44// AuctionConfig is the configuration for the Auction smart contract interface
45type AuctionConfig struct {
46	Address  ethCommon.Address
47	TokenHEZ TokenConfig
48}
49
50// ClientConfig is the configuration of the Client
51type ClientConfig struct {
52	Ethereum EthereumConfig
53	Rollup   RollupConfig
54	Auction  AuctionConfig
55}
56
57// NewClient creates a new Client to interact with Ethereum and the Hermez smart contracts.
58func NewClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore, cfg *ClientConfig) (*Client, error) {
59	ethereumClient := NewEthereumClient(client, account, ks, &cfg.Ethereum)
60	auctionClient, err := NewAuctionClient(ethereumClient, cfg.Auction.Address, cfg.Auction.TokenHEZ)
61	if err != nil {
62		return nil, err
63	}
64	rollupCient, err := NewRollupClient(ethereumClient, cfg.Rollup.Address, cfg.Auction.TokenHEZ)
65	if err != nil {
66		return nil, err
67	}
68	return &Client{
69		EthereumClient: *ethereumClient,
70		AuctionClient:  *auctionClient,
71		RollupClient:   *rollupCient,
72	}, nil
73}