145 lines
4.3 KiB
Go
145 lines
4.3 KiB
Go
package bridge
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import (
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"context"
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"fmt"
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"math/big"
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"strings"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/accounts/abi"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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ethTypes "github.com/ethereum/go-ethereum/core/types"
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"github.com/status-im/status-go/account"
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"github.com/status-im/status-go/contracts/community-tokens/collectibles"
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"github.com/status-im/status-go/eth-node/types"
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"github.com/status-im/status-go/params"
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"github.com/status-im/status-go/rpc"
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"github.com/status-im/status-go/services/wallet/token"
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"github.com/status-im/status-go/transactions"
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)
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type ERC721TransferTxArgs struct {
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transactions.SendTxArgs
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TokenID *hexutil.Big `json:"tokenId"`
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Recipient common.Address `json:"recipient"`
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}
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type ERC721TransferBridge struct {
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rpcClient *rpc.Client
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transactor *transactions.Transactor
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}
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func NewERC721TransferBridge(rpcClient *rpc.Client, transactor *transactions.Transactor) *ERC721TransferBridge {
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return &ERC721TransferBridge{rpcClient: rpcClient, transactor: transactor}
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}
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func (s *ERC721TransferBridge) Name() string {
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return "ERC721Transfer"
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}
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func (s *ERC721TransferBridge) Can(from, to *params.Network, token *token.Token, balance *big.Int) (bool, error) {
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return from.ChainID == to.ChainID, nil
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}
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func (s *ERC721TransferBridge) CalculateFees(from, to *params.Network, token *token.Token, amountIn *big.Int, nativeTokenPrice, tokenPrice float64, gasPrice *big.Float) (*big.Int, *big.Int, error) {
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return big.NewInt(0), big.NewInt(0), nil
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}
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func (s *ERC721TransferBridge) EstimateGas(fromNetwork *params.Network, toNetwork *params.Network, from common.Address, to common.Address, token *token.Token, amountIn *big.Int) (uint64, error) {
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ethClient, err := s.rpcClient.EthClient(fromNetwork.ChainID)
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if err != nil {
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return 0, err
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}
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var input []byte
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value := new(big.Int)
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abi, err := abi.JSON(strings.NewReader(collectibles.CollectiblesMetaData.ABI))
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if err != nil {
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return 0, err
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}
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id, success := big.NewInt(0).SetString(token.Symbol, 0)
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if !success {
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return 0, fmt.Errorf("failed to convert %s to big.Int", token.Symbol)
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}
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input, err = abi.Pack("safeTransferFrom",
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from,
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to,
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id,
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)
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if err != nil {
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return 0, err
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}
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ctx := context.Background()
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if code, err := ethClient.PendingCodeAt(ctx, token.Address); err != nil {
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return 0, err
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} else if len(code) == 0 {
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return 0, bind.ErrNoCode
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}
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msg := ethereum.CallMsg{
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From: from,
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To: &token.Address,
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Value: value,
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Data: input,
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}
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estimation, err := ethClient.EstimateGas(ctx, msg)
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if err != nil {
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return 0, err
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}
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increasedEstimation := float64(estimation) * IncreaseEstimatedGasFactor
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return uint64(increasedEstimation), nil
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}
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func (s *ERC721TransferBridge) sendOrBuild(sendArgs *TransactionBridge, signerFn bind.SignerFn) (tx *ethTypes.Transaction, err error) {
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ethClient, err := s.rpcClient.EthClient(sendArgs.ChainID)
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if err != nil {
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return tx, err
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}
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contract, err := collectibles.NewCollectibles(common.Address(*sendArgs.ERC721TransferTx.To), ethClient)
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if err != nil {
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return tx, err
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}
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nonce, err := s.transactor.NextNonce(s.rpcClient, sendArgs.ChainID, sendArgs.ERC721TransferTx.From)
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if err != nil {
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return tx, err
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}
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argNonce := hexutil.Uint64(nonce)
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sendArgs.ERC721TransferTx.Nonce = &argNonce
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txOpts := sendArgs.ERC721TransferTx.ToTransactOpts(signerFn)
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tx, err = contract.SafeTransferFrom(txOpts, common.Address(sendArgs.ERC721TransferTx.From),
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sendArgs.ERC721TransferTx.Recipient,
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sendArgs.ERC721TransferTx.TokenID.ToInt())
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return tx, err
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}
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func (s *ERC721TransferBridge) Send(sendArgs *TransactionBridge, verifiedAccount *account.SelectedExtKey) (hash types.Hash, err error) {
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tx, err := s.sendOrBuild(sendArgs, getSigner(sendArgs.ChainID, sendArgs.ERC721TransferTx.From, verifiedAccount))
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if err != nil {
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return hash, err
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}
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return types.Hash(tx.Hash()), nil
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}
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func (s *ERC721TransferBridge) BuildTransaction(sendArgs *TransactionBridge) (*ethTypes.Transaction, error) {
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return s.sendOrBuild(sendArgs, nil)
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}
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func (s *ERC721TransferBridge) CalculateAmountOut(from, to *params.Network, amountIn *big.Int, symbol string) (*big.Int, error) {
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return amountIn, nil
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}
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func (s *ERC721TransferBridge) GetContractAddress(network *params.Network, token *token.Token) *common.Address {
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return &token.Address
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}
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