Merge pull request #143 from hermeznetwork/feature/ethclient5-sc

Update ethclient auction & add wdelayer

eth/auction.go

@@ -1,6 +1,7 @@
 package eth
 
 import (
+	"encoding/binary"
 	"fmt"
 	"math/big"
 
@@ -9,7 +10,9 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethclient"
 	HermezAuctionProtocol "github.com/hermeznetwork/hermez-node/eth/contracts/auction"
+	ERC777 "github.com/hermeznetwork/hermez-node/eth/contracts/erc777"
 	"github.com/hermeznetwork/hermez-node/log"
+	"golang.org/x/crypto/sha3"
 )
 
 // AuctionConstants are the constants of the Rollup Smart Contract
@@ -241,8 +244,7 @@ type AuctionInterface interface {
 	// AuctionTokensReceived(operator, from, to ethCommon.Address, amount *big.Int,
 	// 	userData, operatorData []byte) error // Only called from another smart contract
 	AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Address) (*types.Transaction, error)
-	AuctionMultiBid(startingSlot int64, endingSlot int64, slotSet [6]bool,
-		maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error)
+	AuctionMultiBid(startingSlot int64, endingSlot int64, slotSet [6]bool, maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error)
 
 	// Forge
 	AuctionCanForge(forger ethCommon.Address, blockNum int64) (bool, error)
@@ -265,17 +267,19 @@ type AuctionInterface interface {
 
 // AuctionClient is the implementation of the interface to the Auction Smart Contract in ethereum.
 type AuctionClient struct {
-	client   *EthereumClient
-	address  ethCommon.Address
-	gasLimit uint64
+	client       *EthereumClient
+	address      ethCommon.Address
+	tokenAddress ethCommon.Address
+	gasLimit     uint64
 }
 
-// NewAuctionClient creates a new AuctionClient
-func NewAuctionClient(client *EthereumClient, address ethCommon.Address) *AuctionClient {
+// NewAuctionClient creates a new AuctionClient.  `tokenAddress` is the address of the HEZ tokens.
+func NewAuctionClient(client *EthereumClient, address, tokenAddress ethCommon.Address) *AuctionClient {
 	return &AuctionClient{
-		client:   client,
-		address:  address,
-		gasLimit: 1000000, //nolint:gomnd
+		client:       client,
+		address:      address,
+		tokenAddress: tokenAddress,
+		gasLimit:     1000000, //nolint:gomnd
 	}
 }
 
@@ -539,11 +543,27 @@ func (c *AuctionClient) AuctionChangeDefaultSlotSetBid(slotSet int64, newInitial
 			return auction.ChangeDefaultSlotSetBid(auth, slotSetToSend, newInitialMinBid)
 		},
 	); err != nil {
-		return nil, fmt.Errorf("Failed changing epoch minBid: %w", err)
+		return nil, fmt.Errorf("Failed changing slotSet Bid: %w", err)
 	}
 	return tx, nil
 }
 
+// AuctionGetClaimableHEZ is the interface to call the smart contract function
+func (c *AuctionClient) AuctionGetClaimableHEZ(claimAddress ethCommon.Address) (*big.Int, error) {
+	var claimableHEZ *big.Int
+	if err := c.client.Call(func(ec *ethclient.Client) error {
+		auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
+		if err != nil {
+			return err
+		}
+		claimableHEZ, err = auction.GetClaimableHEZ(nil, claimAddress)
+		return err
+	}); err != nil {
+		return nil, err
+	}
+	return claimableHEZ, nil
+}
+
 // AuctionRegisterCoordinator is the interface to call the smart contract function
 func (c *AuctionClient) AuctionRegisterCoordinator(forgerAddress ethCommon.Address, URL string) (*types.Transaction, error) {
 	var tx *types.Transaction
@@ -632,6 +652,23 @@ func (c *AuctionClient) AuctionGetMinBidBySlot(slot int64) (*big.Int, error) {
 	return minBid, nil
 }
 
+// AuctionGetSlotSet is the interface to call the smart contract function
+func (c *AuctionClient) AuctionGetSlotSet(slot int64) (*big.Int, error) {
+	var slotSet *big.Int
+	if err := c.client.Call(func(ec *ethclient.Client) error {
+		auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
+		if err != nil {
+			return err
+		}
+		slotToSend := big.NewInt(slot)
+		slotSet, err = auction.GetSlotSet(nil, slotToSend)
+		return err
+	}); err != nil {
+		return big.NewInt(0), err
+	}
+	return slotSet, nil
+}
+
 // AuctionGetDefaultSlotSetBid is the interface to call the smart contract function
 func (c *AuctionClient) AuctionGetDefaultSlotSetBid(slotSet uint8) (*big.Int, error) {
 	var minBidSlotSet *big.Int
@@ -655,14 +692,89 @@ func (c *AuctionClient) AuctionGetDefaultSlotSetBid(slotSet uint8) (*big.Int, er
 
 // AuctionBid is the interface to call the smart contract function
 func (c *AuctionClient) AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
-	log.Error("TODO")
-	return nil, errTODO
+	var tx *types.Transaction
+	var err error
+	if tx, err = c.client.CallAuth(
+		c.gasLimit,
+		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
+			tokens, err := ERC777.NewERC777(c.tokenAddress, ec)
+			if err != nil {
+				return nil, err
+			}
+			bidFnSignature := []byte("bid(uint128,uint128,address)")
+			hash := sha3.NewLegacyKeccak256()
+			_, err = hash.Write(bidFnSignature)
+			if err != nil {
+				return nil, err
+			}
+			methodID := hash.Sum(nil)[:4]
+			slotBytes := make([]byte, 8)
+			binary.BigEndian.PutUint64(slotBytes, uint64(slot))
+			paddedSlot := ethCommon.LeftPadBytes(slotBytes, 32)
+			paddedAmount := ethCommon.LeftPadBytes(bidAmount.Bytes(), 32)
+			paddedAddress := ethCommon.LeftPadBytes(forger.Bytes(), 32)
+			var userData []byte
+			userData = append(userData, methodID...)
+			userData = append(userData, paddedSlot...)
+			userData = append(userData, paddedAmount...)
+			userData = append(userData, paddedAddress...)
+			return tokens.Send(auth, c.address, bidAmount, userData)
+		},
+	); err != nil {
+		return nil, fmt.Errorf("Failed bid: %w", err)
+	}
+	return tx, nil
 }
 
 // AuctionMultiBid is the interface to call the smart contract function
 func (c *AuctionClient) AuctionMultiBid(startingSlot int64, endingSlot int64, slotSet [6]bool, maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
-	log.Error("TODO")
-	return nil, errTODO
+	var tx *types.Transaction
+	var err error
+	if tx, err = c.client.CallAuth(
+		c.gasLimit,
+		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
+			tokens, err := ERC777.NewERC777(c.tokenAddress, ec)
+			if err != nil {
+				return nil, err
+			}
+			multiBidFnSignature := []byte("multiBid(uint128,uint128,bool[6],uint128,uint128,address)")
+			hash := sha3.NewLegacyKeccak256()
+			_, err = hash.Write(multiBidFnSignature)
+			if err != nil {
+				return nil, err
+			}
+			methodID := hash.Sum(nil)[:4]
+			startingSlotBytes := make([]byte, 8)
+			binary.BigEndian.PutUint64(startingSlotBytes, uint64(startingSlot))
+			paddedStartingSlot := ethCommon.LeftPadBytes(startingSlotBytes, 32)
+			endingSlotBytes := make([]byte, 8)
+			binary.BigEndian.PutUint64(endingSlotBytes, uint64(endingSlot))
+			paddedEndingSlot := ethCommon.LeftPadBytes(endingSlotBytes, 32)
+			paddedMinBid := ethCommon.LeftPadBytes(closedMinBid.Bytes(), 32)
+			paddedMaxBid := ethCommon.LeftPadBytes(maxBid.Bytes(), 32)
+			paddedAddress := ethCommon.LeftPadBytes(forger.Bytes(), 32)
+			var userData []byte
+			userData = append(userData, methodID...)
+			userData = append(userData, paddedStartingSlot...)
+			userData = append(userData, paddedEndingSlot...)
+			for i := 0; i < len(slotSet); i++ {
+				if slotSet[i] {
+					paddedSlotSet := ethCommon.LeftPadBytes([]byte{1}, 32)
+					userData = append(userData, paddedSlotSet...)
+				} else {
+					paddedSlotSet := ethCommon.LeftPadBytes([]byte{0}, 32)
+					userData = append(userData, paddedSlotSet...)
+				}
+			}
+			userData = append(userData, paddedMaxBid...)
+			userData = append(userData, paddedMinBid...)
+			userData = append(userData, paddedAddress...)
+			return tokens.Send(auth, c.address, budget, userData)
+		},
+	); err != nil {
+		return nil, fmt.Errorf("Failed multibid: %w", err)
+	}
+	return tx, nil
 }
 
 // AuctionCanForge is the interface to call the smart contract function

eth/auction_test.go

@@ -26,28 +26,31 @@ var auctionClient *AuctionClient
 
 /*var donationAddressStr = os.Getenv("DONATION_ADDRESS")
 var bootCoordinatorStr = os.Getenv("BOOT_COORDINATOR_ADDRESS")
-var ehtClientDialURL = os.Getenv("ETHCLIENT_DIAL_URL")
-var auctionAddressStr = os.Getenv("AUCTION_ADDRESS")*/
+var auctionAddressStr = os.Getenv("AUCTION_ADDRESS")
+var tokenHezStr = os.Getenv("TOKEN_ADDRESS")
+var hermezStr = os.Getenv("HERMEZ_ADDRESS")
+var governanceAddressStr = os.Getenv("GOV_ADDRESS")
+var governancePrivateKey = os.Getenv("GOV_PK")
+var ehtClientDialURL = os.Getenv("ETHCLIENT_DIAL_URL")*/
 var integration = os.Getenv("INTEGRATION")
 
 var donationAddressStr = "0x6c365935CA8710200C7595F0a72EB6023A7706Cd"
 var bootCoordinatorStr = "0xc783df8a850f42e7f7e57013759c285caa701eb6"
-var DONATION = common.HexToAddress(donationAddressStr)
-var BOOTCOORDINATOR = common.HexToAddress(bootCoordinatorStr)
-
-var ehtClientDialURL = "http://localhost:8545"
 var auctionAddressStr = "0x3619DbE27d7c1e7E91aA738697Ae7Bc5FC3eACA5"
-
-// var ownerAddressStr = "0xc783df8a850f42e7F7e57013759C285caa701eB6"
+var tokenHezStr = "0xf4e77E5Da47AC3125140c470c71cBca77B5c638c" //nolint:gosec
+var hermezStr = "0xc4905364b78a742ccce7B890A89514061E47068D"
 var governanceAddressStr = "0xead9c93b79ae7c1591b1fb5323bd777e86e150d4"
 var governancePrivateKey = "d49743deccbccc5dc7baa8e69e5be03298da8688a15dd202e20f15d5e0e9a9fb"
+var ehtClientDialURL = "http://localhost:8545"
+var DONATION = common.HexToAddress(donationAddressStr)
+var BOOTCOORDINATOR = common.HexToAddress(bootCoordinatorStr)
+var TOKENHEZ = common.HexToAddress(tokenHezStr)
+var HERMEZROLLUP = common.HexToAddress(hermezStr)
+
 var minBidStr = "10000000000000000000"
 var URL = "http://localhost:3000"
 var newURL = "http://localhost:3002"
 var BLOCKSPERSLOT = uint8(40)
-var TOKENHEZ = common.HexToAddress("0xf4e77E5Da47AC3125140c470c71cBca77B5c638c")
-var HERMEZROLLUP = common.HexToAddress("0xc4905364b78a742ccce7B890A89514061E47068D")
-
 var password = "pass"
 
 func TestNewAction(t *testing.T) {
@@ -65,8 +68,9 @@ func TestNewAction(t *testing.T) {
 	require.Nil(t, err)
 	ethereumClient := NewEthereumClient(ethClient, &account, ks, nil)
 	auctionAddress := common.HexToAddress(auctionAddressStr)
+	tokenAddress := common.HexToAddress(tokenHezStr)
 	if integration != "" {
-		auctionClient = NewAuctionClient(ethereumClient, auctionAddress)
+		auctionClient = NewAuctionClient(ethereumClient, auctionAddress, tokenAddress)
 	}
 }
 
@@ -101,10 +105,10 @@ func TestAuctionVariables(t *testing.T) {
 		auctionVariables, err := auctionClient.AuctionVariables()
 		require.Nil(t, err)
 		assert.Equal(t, auctionVariables.AllocationRatio, allocationRatioConst)
-		assert.Equal(t, auctionVariables.BootCoordinator, &BOOTCOORDINATOR)
+		assert.Equal(t, auctionVariables.BootCoordinator, BOOTCOORDINATOR)
 		assert.Equal(t, auctionVariables.ClosedAuctionSlots, closedAuctionSlotsConst)
 		assert.Equal(t, auctionVariables.DefaultSlotSetBid, defaultSlotSetBid)
-		assert.Equal(t, auctionVariables.DonationAddress, &DONATION)
+		assert.Equal(t, auctionVariables.DonationAddress, DONATION)
 		assert.Equal(t, auctionVariables.OpenAuctionSlots, openAuctionSlotsConst)
 		assert.Equal(t, auctionVariables.Outbidding, outbiddingConst)
 		assert.Equal(t, auctionVariables.SlotDeadline, slotDeadlineConst)
@@ -262,6 +266,15 @@ func TestAuctionSetBootCoordinator(t *testing.T) {
 	}
 }
 
+func TestAuctionGetSlotSet(t *testing.T) {
+	slot := int64(10)
+	if auctionClient != nil {
+		slotSet, err := auctionClient.AuctionGetSlotSet(slot)
+		require.Nil(t, err)
+		assert.Equal(t, slotSet, big.NewInt(4))
+	}
+}
+
 func TestAuctionGetDefaultSlotSetBid(t *testing.T) {
 	slotSet := uint8(3)
 	if auctionClient != nil {
@@ -271,7 +284,7 @@ func TestAuctionGetDefaultSlotSetBid(t *testing.T) {
 	}
 }
 
-func TestAuctionChangeEpochMinBid(t *testing.T) {
+func TestAuctionChangeDefaultSlotSetBid(t *testing.T) {
 	slotSet := int64(3)
 	set := uint8(3)
 	newInitialMinBid := new(big.Int)
@@ -289,6 +302,15 @@ func TestAuctionChangeEpochMinBid(t *testing.T) {
 	}
 }
 
+func TestAuctionGetClaimableHEZ(t *testing.T) {
+	forgerAddress := common.HexToAddress(governanceAddressStr)
+	if auctionClient != nil {
+		claimableHEZ, err := auctionClient.AuctionGetClaimableHEZ(forgerAddress)
+		require.Nil(t, err)
+		assert.Equal(t, claimableHEZ.Int64(), int64(0))
+	}
+}
+
 func TestAuctionIsRegisteredCoordinator(t *testing.T) {
 	forgerAddress := common.HexToAddress(governanceAddressStr)
 	if auctionClient != nil {
@@ -322,3 +344,32 @@ func TestAuctionUpdateCoordinatorInfo(t *testing.T) {
 		require.Nil(t, err)
 	}
 }
+
+func TestAuctionBid(t *testing.T) {
+	if auctionClient != nil {
+		currentSlot, err := auctionClient.AuctionGetCurrentSlotNumber()
+		require.Nil(t, err)
+		bidAmount := new(big.Int)
+		bidAmount.SetString("11000000000000000000", 10)
+		forgerAddress := common.HexToAddress(governanceAddressStr)
+		_, err = auctionClient.AuctionBid(currentSlot+4, bidAmount, forgerAddress)
+		require.Nil(t, err)
+	}
+}
+
+func TestAuctionMultiBid(t *testing.T) {
+	if auctionClient != nil {
+		currentSlot, err := auctionClient.AuctionGetCurrentSlotNumber()
+		require.Nil(t, err)
+		slotSet := [6]bool{false, true, false, true, false, true}
+		maxBid := new(big.Int)
+		maxBid.SetString("11000000000000000000", 10)
+		minBid := new(big.Int)
+		minBid.SetString("11000000000000000000", 10)
+		budget := new(big.Int)
+		budget.SetString("110000000000000000000", 10)
+		forgerAddress := common.HexToAddress(governanceAddressStr)
+		_, err = auctionClient.AuctionMultiBid(currentSlot+5, currentSlot+10, slotSet, maxBid, minBid, budget, forgerAddress)
+		require.Nil(t, err)
+	}
+}

eth/wdelayer.go

@@ -0,0 +1,214 @@
+package eth
+
+import (
+	"math/big"
+
+	ethCommon "github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+)
+
+// WDelayerConstants are the constants of the Rollup Smart Contract
+type WDelayerConstants struct {
+	// Max Withdrawal Delay
+	MaxWithdrawalDelay uint64
+	// Max Emergency mode time
+	MaxEmergencyModeTime uint64
+	// HermezRollup smartcontract address
+	HermezRollup ethCommon.Address
+}
+
+// DepositState is the state of Deposit
+type DepositState struct {
+	Amount           *big.Int
+	DepositTimestamp uint64
+}
+
+// WDelayerEventDeposit is an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventDeposit struct {
+	Owner            ethCommon.Address
+	Token            ethCommon.Address
+	Amount           *big.Int
+	DepositTimestamp uint64
+}
+
+// WDelayerEventWithdraw is an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventWithdraw struct {
+	Owner  ethCommon.Address
+	Token  ethCommon.Address
+	Amount *big.Int
+}
+
+// WDelayerEventEmergencyModeEnabled an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventEmergencyModeEnabled struct {
+}
+
+// WDelayerEventNewWithdrawalDelay an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventNewWithdrawalDelay struct {
+	WithdrawalDelay uint64
+}
+
+// WDelayerEventEscapeHatchWithdrawal an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventEscapeHatchWithdrawal struct {
+	Who   ethCommon.Address
+	To    ethCommon.Address
+	Token ethCommon.Address
+}
+
+// WDelayerEventNewHermezKeeperAddress an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventNewHermezKeeperAddress struct {
+	NewHermezKeeperAddress ethCommon.Address
+}
+
+// WDelayerEventNewWhiteHackGroupAddress an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventNewWhiteHackGroupAddress struct {
+	NewWhiteHackGroupAddress ethCommon.Address
+}
+
+// WDelayerEventNewHermezGovernanceDAOAddress an event of the WithdrawalDelayer Smart Contract
+type WDelayerEventNewHermezGovernanceDAOAddress struct {
+	NewHermezGovernanceDAOAddress ethCommon.Address
+}
+
+// WDelayerEvents is the lis of events in a block of the WithdrawalDelayer Smart Contract
+type WDelayerEvents struct { //nolint:structcheck
+	Deposit                       []WDelayerEventDeposit
+	Withdraw                      []WDelayerEventWithdraw
+	EmergencyModeEnabled          []WDelayerEventEmergencyModeEnabled
+	NewWithdrawalDelay            []WDelayerEventNewWithdrawalDelay
+	EscapeHatchWithdrawal         []WDelayerEventEscapeHatchWithdrawal
+	NewHermezKeeperAddress        []WDelayerEventNewHermezKeeperAddress
+	NewWhiteHackGroupAddress      []WDelayerEventNewWhiteHackGroupAddress
+	NewHermezGovernanceDAOAddress []WDelayerEventNewHermezGovernanceDAOAddress
+}
+
+// NewWDelayerEvents creates an empty WDelayerEvents with the slices initialized.
+func NewWDelayerEvents() WDelayerEvents {
+	return WDelayerEvents{
+		Deposit:                       make([]WDelayerEventDeposit, 0),
+		Withdraw:                      make([]WDelayerEventWithdraw, 0),
+		EmergencyModeEnabled:          make([]WDelayerEventEmergencyModeEnabled, 0),
+		NewWithdrawalDelay:            make([]WDelayerEventNewWithdrawalDelay, 0),
+		EscapeHatchWithdrawal:         make([]WDelayerEventEscapeHatchWithdrawal, 0),
+		NewHermezKeeperAddress:        make([]WDelayerEventNewHermezKeeperAddress, 0),
+		NewWhiteHackGroupAddress:      make([]WDelayerEventNewWhiteHackGroupAddress, 0),
+		NewHermezGovernanceDAOAddress: make([]WDelayerEventNewHermezGovernanceDAOAddress, 0),
+	}
+}
+
+// WDelayerInterface is the inteface to WithdrawalDelayer Smart Contract
+type WDelayerInterface interface {
+	//
+	// Smart Contract Methods
+	//
+
+	WDelayerGetHermezGovernanceDAOAddress() (*ethCommon.Address, error)
+	WDelayerSetHermezGovernanceDAOAddress(newAddress ethCommon.Address) (*types.Transaction, error)
+	WDelayerGetHermezKeeperAddress() (*ethCommon.Address, error)
+	WDelayerSetHermezKeeperAddress(newAddress ethCommon.Address) (*types.Transaction, error)
+	WDelayerGetWhiteHackGroupAddress() (*ethCommon.Address, error)
+	WDelayerSetWhiteHackGroupAddress(newAddress ethCommon.Address) (*types.Transaction, error)
+	WDelayerIsEmergencyMode() (bool, error)
+	WDelayerGetWithdrawalDelay() (*big.Int, error)
+	WDelayerGetEmergencyModeStartingTime() (*big.Int, error)
+	WDelayerEnableEmergencyMode() (*types.Transaction, error)
+	WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64) (*types.Transaction, error)
+	WDelayerDepositInfo(owner, token ethCommon.Address) (*big.Int, uint64)
+	WDelayerDeposit(onwer, token ethCommon.Address, amount *big.Int) (*types.Transaction, error)
+	WDelayerWithdrawal(owner, token ethCommon.Address) (*types.Transaction, error)
+	WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address) (*types.Transaction, error)
+}
+
+//
+// Implementation
+//
+
+// WDelayerClient is the implementation of the interface to the WithdrawDelayer Smart Contract in ethereum.
+type WDelayerClient struct {
+	client   *EthereumClient
+	address  ethCommon.Address
+	gasLimit uint64
+}
+
+// NewWDelayerClient creates a new WDelayerClient
+func NewWDelayerClient(client *EthereumClient, address ethCommon.Address) *WDelayerClient {
+	return &WDelayerClient{
+		client:   client,
+		address:  address,
+		gasLimit: 1000000, //nolint:gomnd
+	}
+}
+
+// WDelayerGetHermezGovernanceDAOAddress is the interface to call the smart contract function
+func (c *WDelayerClient) WDelayerGetHermezGovernanceDAOAddress() (*ethCommon.Address, error) {
+	return nil, errTODO
+}
+
+// WDelayerSetHermezGovernanceDAOAddress is the interface to call the smart contract function
+func WDelayerSetHermezGovernanceDAOAddress(newAddress ethCommon.Address) (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerGetHermezKeeperAddress is the interface to call the smart contract function
+func WDelayerGetHermezKeeperAddress() (*ethCommon.Address, error) {
+	return nil, errTODO
+}
+
+// WDelayerSetHermezKeeperAddress is the interface to call the smart contract function
+func WDelayerSetHermezKeeperAddress(newAddress ethCommon.Address) (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerGetWhiteHackGroupAddress is the interface to call the smart contract function
+func WDelayerGetWhiteHackGroupAddress() (*ethCommon.Address, error) {
+	return nil, errTODO
+}
+
+// WDelayerSetWhiteHackGroupAddress is the interface to call the smart contract function
+func WDelayerSetWhiteHackGroupAddress(newAddress ethCommon.Address) (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerIsEmergencyMode is the interface to call the smart contract function
+func WDelayerIsEmergencyMode() (bool, error) {
+	return false, errTODO
+}
+
+// WDelayerGetWithdrawalDelay is the interface to call the smart contract function
+func WDelayerGetWithdrawalDelay() (*big.Int, error) {
+	return nil, errTODO
+}
+
+// WDelayerGetEmergencyModeStartingTime is the interface to call the smart contract function
+func WDelayerGetEmergencyModeStartingTime() (*big.Int, error) {
+	return nil, errTODO
+}
+
+// WDelayerEnableEmergencyMode is the interface to call the smart contract function
+func WDelayerEnableEmergencyMode() (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerChangeWithdrawalDelay is the interface to call the smart contract function
+func WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64) (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerDepositInfo is the interface to call the smart contract function
+func WDelayerDepositInfo(owner, token ethCommon.Address) (*big.Int, uint64, error) {
+	return big.NewInt(0), 0, errTODO
+}
+
+// WDelayerDeposit is the interface to call the smart contract function
+func WDelayerDeposit(onwer, token ethCommon.Address, amount *big.Int) (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerWithdrawal is the interface to call the smart contract function
+func WDelayerWithdrawal(owner, token ethCommon.Address) (*types.Transaction, error) {
+	return nil, errTODO
+}
+
+// WDelayerEscapeHatchWithdrawal is the interface to call the smart contract function
+func WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address) (*types.Transaction, error) {
+	return nil, errTODO
+}

go.mod

@@ -22,5 +22,6 @@ require (
 	github.com/urfave/cli/v2 v2.2.0
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.16.0
+	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
 	gopkg.in/go-playground/validator.v9 v9.29.1
 )