Fix for erc20 transfer + other type of tx

This is 2 fix:
- ENS interaction + stickers don't need L1 fees as they are only executed on mainnet
- ERC20 data needs to be built when making the tx

services/wallet/bridge/transfer.go

@@ -87,6 +87,7 @@ func (s *TransferBridge) EstimateGas(fromNetwork *params.Network, toNetwork *par
 
 func (s *TransferBridge) BuildTx(network *params.Network, fromAddress common.Address, toAddress common.Address, token *token.Token, amountIn *big.Int) (*ethTypes.Transaction, error) {
 	toAddr := types.Address(toAddress)
+	if strings.EqualFold(token.Symbol, "ETH") {
 		sendArgs := &TransactionBridge{
 			TransferTx: &transactions.SendTxArgs{
 				From:  types.Address(fromAddress),
@@ -97,6 +98,29 @@ func (s *TransferBridge) BuildTx(network *params.Network, fromAddress common.Add
 			ChainID: network.ChainID,
 		}
 
+		return s.BuildTransaction(sendArgs)
+	}
+	abi, err := abi.JSON(strings.NewReader(ierc20.IERC20ABI))
+	if err != nil {
+		return nil, err
+	}
+	input, err := abi.Pack("transfer",
+		toAddress,
+		amountIn,
+	)
+	if err != nil {
+		return nil, err
+	}
+	sendArgs := &TransactionBridge{
+		TransferTx: &transactions.SendTxArgs{
+			From:  types.Address(fromAddress),
+			To:    &toAddr,
+			Value: (*hexutil.Big)(big.NewInt(0)),
+			Data:  input,
+		},
+		ChainID: network.ChainID,
+	}
+
 	return s.BuildTransaction(sendArgs)
 }
 

services/wallet/router.go

@@ -99,6 +99,10 @@ func (s SendType) isTransfer() bool {
 	return s == Transfer || s.IsCollectiblesTransfer()
 }
 
+func (s SendType) needL1Fee() bool {
+	return s != ENSRegister && s != ENSRelease && s != ENSSetPubKey && s != StickersBuy
+}
+
 func (s SendType) isAvailableBetween(from, to *params.Network) bool {
 	if s.IsCollectiblesTransfer() {
 		return from.ChainID == to.ChainID
@@ -713,13 +717,16 @@ func (r *Router) suggestedRoutes(
 						continue
 					}
 
+					var l1GasFeeWei uint64 = 0
+					if sendType.needL1Fee() {
 						tx, err := bridge.BuildTx(network, addrFrom, addrTo, token, amountIn)
 						if err != nil {
 							continue
 						}
 
-					l1GasFeeWei, _ := r.s.feesManager.getL1Fee(ctx, network.ChainID, tx)
+						l1GasFeeWei, _ = r.s.feesManager.getL1Fee(ctx, network.ChainID, tx)
 						l1GasFeeWei += l1ApprovalFee
+					}
 					gasFees.L1GasFee = weiToGwei(big.NewInt(int64(l1GasFeeWei)))
 
 					requiredNativeBalance := new(big.Int).Mul(gweiToWei(maxFees), big.NewInt(int64(gasLimit)))