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	WDelayerInterface
21}
22
23//
24// Implementation
25//
26
27// Client is used to interact with Ethereum and the Hermez smart contracts.
28type Client struct {
29	EthereumClient
30	AuctionClient
31	RollupClient
32	WDelayerClient
33}
34
35// TokenConfig is used to define the information about token
36type TokenConfig struct {
37	Address ethCommon.Address
38	Name    string
39}
40
41// RollupConfig is the configuration for the Rollup smart contract interface
42type RollupConfig struct {
43	Address ethCommon.Address
44}
45
46// AuctionConfig is the configuration for the Auction smart contract interface
47type AuctionConfig struct {
48	Address  ethCommon.Address
49	TokenHEZ TokenConfig
50}
51
52// WDelayerConfig is the configuration for the WDelayer smart contract interface
53type WDelayerConfig struct {
54	Address ethCommon.Address
55}
56
57// ClientConfig is the configuration of the Client
58type ClientConfig struct {
59	Ethereum EthereumConfig
60	Rollup   RollupConfig
61	Auction  AuctionConfig
62	WDelayer WDelayerConfig
63}
64
65// NewClient creates a new Client to interact with Ethereum and the Hermez smart contracts.
66func NewClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore, cfg *ClientConfig) (*Client, error) {
67	ethereumClient := NewEthereumClient(client, account, ks, &cfg.Ethereum)
68	auctionClient, err := NewAuctionClient(ethereumClient, cfg.Auction.Address, cfg.Auction.TokenHEZ)
69	if err != nil {
70		return nil, err
71	}
72	rollupClient, err := NewRollupClient(ethereumClient, cfg.Rollup.Address, cfg.Auction.TokenHEZ)
73	if err != nil {
74		return nil, err
75	}
76	wDelayerClient, err := NewWDelayerClient(ethereumClient, cfg.WDelayer.Address)
77	if err != nil {
78		return nil, err
79	}
80	return &Client{
81		EthereumClient: *ethereumClient,
82		AuctionClient:  *auctionClient,
83		RollupClient:   *rollupClient,
84		WDelayerClient: *wDelayerClient,
85	}, nil
86}