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erc1155_transfer.go
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erc1155_transfer.go
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package bridge
import (
"context"
"fmt"
"math/big"
"strings"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
ethTypes "github.com/ethereum/go-ethereum/core/types"
"github.com/status-im/status-go/account"
"github.com/status-im/status-go/contracts/ierc1155"
"github.com/status-im/status-go/eth-node/types"
"github.com/status-im/status-go/params"
"github.com/status-im/status-go/rpc"
"github.com/status-im/status-go/services/wallet/token"
"github.com/status-im/status-go/transactions"
)
type ERC1155TransferTxArgs struct {
transactions.SendTxArgs
TokenID *hexutil.Big `json:"tokenId"`
Recipient common.Address `json:"recipient"`
Amount *hexutil.Big `json:"amount"`
}
type ERC1155TransferBridge struct {
rpcClient *rpc.Client
transactor *transactions.Transactor
}
func NewERC1155TransferBridge(rpcClient *rpc.Client, transactor *transactions.Transactor) *ERC1155TransferBridge {
return &ERC1155TransferBridge{rpcClient: rpcClient, transactor: transactor}
}
func (s *ERC1155TransferBridge) Name() string {
return "ERC1155Transfer"
}
func (s *ERC1155TransferBridge) Can(from, to *params.Network, token *token.Token, toToken *token.Token, balance *big.Int) (bool, error) {
return from.ChainID == to.ChainID && toToken == nil, nil
}
func (s *ERC1155TransferBridge) CalculateFees(from, to *params.Network, token *token.Token, amountIn *big.Int, nativeTokenPrice, tokenPrice float64, gasPrice *big.Float) (*big.Int, *big.Int, error) {
return big.NewInt(0), big.NewInt(0), nil
}
func (s *ERC1155TransferBridge) EstimateGas(fromNetwork *params.Network, toNetwork *params.Network, from common.Address, to common.Address, token *token.Token, toToken *token.Token, amountIn *big.Int) (uint64, error) {
ethClient, err := s.rpcClient.EthClient(fromNetwork.ChainID)
if err != nil {
return 0, err
}
var input []byte
value := new(big.Int)
abi, err := abi.JSON(strings.NewReader(ierc1155.Ierc1155ABI))
if err != nil {
return 0, err
}
id, success := big.NewInt(0).SetString(token.Symbol, 0)
if !success {
return 0, fmt.Errorf("failed to convert %s to big.Int", token.Symbol)
}
input, err = abi.Pack("safeTransferFrom",
from,
to,
id,
amountIn,
[]byte{},
)
if err != nil {
return 0, err
}
ctx := context.Background()
if code, err := ethClient.PendingCodeAt(ctx, token.Address); err != nil {
return 0, err
} else if len(code) == 0 {
return 0, bind.ErrNoCode
}
msg := ethereum.CallMsg{
From: from,
To: &token.Address,
Value: value,
Data: input,
}
estimation, err := ethClient.EstimateGas(ctx, msg)
if err != nil {
return 0, err
}
increasedEstimation := float64(estimation) * IncreaseEstimatedGasFactor
return uint64(increasedEstimation), nil
}
func (s *ERC1155TransferBridge) BuildTx(network, _ *params.Network, fromAddress common.Address, toAddress common.Address, token *token.Token, amountIn *big.Int, _ *big.Int) (*ethTypes.Transaction, error) {
contractAddress := types.Address(token.Address)
// We store ERC1155 Token ID using big.Int.String() in token.Symbol
tokenID, success := new(big.Int).SetString(token.Symbol, 10)
if !success {
return nil, fmt.Errorf("failed to convert ERC1155's Symbol %s to big.Int", token.Symbol)
}
sendArgs := &TransactionBridge{
ERC1155TransferTx: &ERC1155TransferTxArgs{
SendTxArgs: transactions.SendTxArgs{
From: types.Address(fromAddress),
To: &contractAddress,
Value: (*hexutil.Big)(amountIn),
Data: types.HexBytes("0x0"),
},
TokenID: (*hexutil.Big)(tokenID),
Recipient: toAddress,
Amount: (*hexutil.Big)(amountIn),
},
ChainID: network.ChainID,
}
return s.BuildTransaction(sendArgs)
}
func (s *ERC1155TransferBridge) sendOrBuild(sendArgs *TransactionBridge, signerFn bind.SignerFn) (tx *ethTypes.Transaction, err error) {
ethClient, err := s.rpcClient.EthClient(sendArgs.ChainID)
if err != nil {
return tx, err
}
contract, err := ierc1155.NewIerc1155(common.Address(*sendArgs.ERC1155TransferTx.To), ethClient)
if err != nil {
return tx, err
}
nonce, err := s.transactor.NextNonce(s.rpcClient, sendArgs.ChainID, sendArgs.ERC1155TransferTx.From)
if err != nil {
return tx, err
}
argNonce := hexutil.Uint64(nonce)
sendArgs.ERC1155TransferTx.Nonce = &argNonce
txOpts := sendArgs.ERC1155TransferTx.ToTransactOpts(signerFn)
tx, err = contract.SafeTransferFrom(
txOpts, common.Address(sendArgs.ERC1155TransferTx.From),
sendArgs.ERC1155TransferTx.Recipient,
sendArgs.ERC1155TransferTx.TokenID.ToInt(),
sendArgs.ERC1155TransferTx.Amount.ToInt(),
[]byte{},
)
return tx, err
}
func (s *ERC1155TransferBridge) Send(sendArgs *TransactionBridge, verifiedAccount *account.SelectedExtKey) (hash types.Hash, err error) {
tx, err := s.sendOrBuild(sendArgs, getSigner(sendArgs.ChainID, sendArgs.ERC1155TransferTx.From, verifiedAccount))
if err != nil {
return hash, err
}
return types.Hash(tx.Hash()), nil
}
func (s *ERC1155TransferBridge) BuildTransaction(sendArgs *TransactionBridge) (*ethTypes.Transaction, error) {
return s.sendOrBuild(sendArgs, nil)
}
func (s *ERC1155TransferBridge) CalculateAmountOut(from, to *params.Network, amountIn *big.Int, symbol string) (*big.Int, error) {
return amountIn, nil
}
func (s *ERC1155TransferBridge) GetContractAddress(network *params.Network, token *token.Token) *common.Address {
return &token.Address
}