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package main
import (
"flag"
"fmt"
"math/big"
"strings"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/coreth"
"github.com/ava-labs/coreth/core/types"
"github.com/ava-labs/coreth/core/vm"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/rlp"
)
func checkError(err error) {
if err != nil {
panic(err)
}
}
var mcAbiJSON = `[{"inputs":[],"name":"enableMultiCoin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"coinid","type":"uint256"}],"name":"getBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"coinid","type":"uint256"},{"internalType":"uint256","name":"amount2","type":"uint256"}],"name":"transfer","outputs":[],"stateMutability":"nonpayable","type":"function"}]`
func main() {
var fChainID int64
var fKey string
var fNonce uint64
var fGasPrice int64
var fGasLimit uint64
var fTo string
var fAmount int64
var fAssetID string
flag.Int64Var(&fChainID, "chainid", 43112, "tx.chainId")
flag.Uint64Var(&fNonce, "nonce", 0, "tx.nonce")
flag.Int64Var(&fGasPrice, "gasprice", 470000000000, "tx.gasPrice")
flag.Uint64Var(&fGasLimit, "gaslimit", 21000, "tx.gasLimit")
flag.Int64Var(&fAmount, "amount", 100, "tx.amount")
flag.StringVar(&fKey, "key", "0x56289e99c94b6912bfc12adc093c9b51124f0dc54ac7a766b2bc5ccf558d8027", "private key (hex with \"0x\")")
flag.StringVar(&fTo, "to", "0x1f0e5C64AFdf53175f78846f7125776E76FA8F34", "tx.to (hex with \"0x\")")
flag.StringVar(&fAssetID, "assetid", "va6gCYWu3boo3NKQgzdwfzB73dmTYKZn2EZ7nz5pbDBXAsaj4", "assetID")
flag.Parse()
_pkey, err := crypto.HexToECDSA(fKey[2:])
checkError(err)
pkey := coreth.NewKeyFromECDSA(_pkey)
// info required to generate a transaction
chainID := big.NewInt(fChainID)
nonce := fNonce
gasPrice := big.NewInt(fGasPrice)
gasLimit := fGasLimit
to := common.HexToAddress(fTo)
assetID, err := ids.FromString(fAssetID)
checkError(err)
mcAbi, err := abi.JSON(strings.NewReader(mcAbiJSON))
data, err := mcAbi.Pack("transfer", to, big.NewInt(0), common.Hash(assetID).Big(), big.NewInt(fAmount))
checkError(err)
tx := types.NewTransaction(nonce, vm.BuiltinAddr, big.NewInt(0), uint64(gasLimit), gasPrice, data)
signedTx, err := types.SignTx(tx, types.NewEIP155Signer(chainID), pkey.PrivateKey)
checkError(err)
txJSON, err := signedTx.MarshalJSON()
checkError(err)
fmt.Printf("json: %s\n", string(txJSON))
b, err := rlp.EncodeToBytes(signedTx)
fmt.Printf("hex: %s\n", hexutil.Encode(b))
}
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