package cc.mrbird.febs.mall.chain;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.http.HttpUtil;
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import com.alibaba.fastjson.JSONObject;
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import org.web3j.abi.FunctionEncoder;
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import org.web3j.abi.FunctionReturnDecoder;
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import org.web3j.abi.TypeReference;
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import org.web3j.abi.datatypes.Address;
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import org.web3j.abi.datatypes.Function;
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import org.web3j.abi.datatypes.Type;
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import org.web3j.abi.datatypes.generated.Uint256;
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import org.web3j.crypto.*;
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import org.web3j.protocol.Web3j;
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import org.web3j.protocol.core.DefaultBlockParameterName;
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import org.web3j.protocol.core.Request;
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import org.web3j.protocol.core.methods.request.Transaction;
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import org.web3j.protocol.core.methods.response.*;
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import org.web3j.protocol.http.HttpService;
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import org.web3j.utils.Convert;
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import org.web3j.utils.Numeric;
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import java.io.IOException;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.math.RoundingMode;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ExecutionException;
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/**
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* @author wzy
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* @date 2022-04-15
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**/
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public class EthService implements ContractChainService {
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private Web3j web3j;
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private String url;
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private String ownerAddress;
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private String privateKey;
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private String contractAddress;
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public EthService(String url, String address, String privateKey, String contractAddress) {
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this.url = url;
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this.ownerAddress = address;
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this.privateKey = privateKey;
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this.contractAddress = contractAddress;
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HttpService service = new HttpService(url);
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web3j = Web3j.build(service);
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}
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public static void main(String[] args) throws IOException {
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BigDecimal coinPrice = ChainService.getInstance(ChainEnum.BSC_GFA.name()).getPrice("0x1Ea392645f816BF15f1Fc87728eA010585bAAE7D").setScale(8,BigDecimal.ROUND_DOWN);
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System.out.println(coinPrice);
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// String address = "0x971c09aa9735eb98459b17ec8b48932d24cbb931";
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// String nonce = "0x1d5f7444107bc02e980deda39d0fce21b06c9da4233a19cb11124cb5bfefc9ec";
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// String sign = "0x8f92cee24906122e26c3cc6cbd72f851cfe2c9574aa03bf3371e5d506fbec68b2ad22bbbc19b00ed21d26ab5a6871507831e2c902d8ed8c33301addc2b57a7731b";
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//
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// String result = address + ":" + nonce + ":" + sign;
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// System.out.println(Hash.sha3(result));
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// Web3Sha3 send = web3j.web3Sha3(result).send();
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// System.out.println(1);
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}
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@Override
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public BigInteger balanceOfUnDecimal(String fromAddress) {
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try {
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String methodName = "balanceOf";
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List<Type> inputParameters = new ArrayList<>();
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List<TypeReference<?>> outputParameters = new ArrayList<>();
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Address address = new Address(fromAddress);
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inputParameters.add(address);
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TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
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};
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outputParameters.add(typeReference);
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Function function = new Function(methodName, inputParameters, outputParameters);
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String data = FunctionEncoder.encode(function);
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Transaction transaction = Transaction.createEthCallTransaction(fromAddress, contractAddress, data);
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EthCall ethCall;
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BigInteger balanceValue = BigInteger.ZERO;
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try {
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ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
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List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
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balanceValue = (BigInteger) results.get(0).getValue();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return balanceValue;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return BigInteger.ZERO;
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}
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@Override
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public int decimals() {
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try {
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String methodName = "decimals";
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List<Type> inputParameters = new ArrayList<>();
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List<TypeReference<?>> outputParameters = new ArrayList<>();
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TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
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};
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outputParameters.add(typeReference);
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Function function = new Function(methodName, inputParameters, outputParameters);
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String data = FunctionEncoder.encode(function);
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Transaction transaction = Transaction.createEthCallTransaction(null, contractAddress, data);
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EthCall ethCall;
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BigInteger decimals = BigInteger.ZERO;
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try {
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ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
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List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
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decimals = (BigInteger) results.get(0).getValue();
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return decimals.intValue();
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} catch (IOException e) {
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e.printStackTrace();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return 0;
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}
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@Override
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public BigDecimal balanceOf(String fromAddress) {
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int decimal = decimals();
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BigInteger balanceValue = balanceOfUnDecimal(fromAddress);
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double res = new BigDecimal(balanceValue).divide(BigDecimal.valueOf(Math.pow(10, decimal)), 8, RoundingMode.HALF_DOWN).doubleValue();
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if (res > 0) {
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return new BigDecimal(res);
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}
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return BigDecimal.ZERO;
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}
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@Override
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public BigDecimal getPrice(String address) {
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BigInteger decimals = BigInteger.ZERO;
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try {
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String methodName = "getPrice";
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List<Type> inputParameters = new ArrayList<>();
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List<TypeReference<?>> outputParameters = new ArrayList<>();
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TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
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};
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outputParameters.add(typeReference);
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Function function = new Function(methodName, inputParameters, outputParameters);
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String data = FunctionEncoder.encode(function);
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Transaction transaction = Transaction.createEthCallTransaction(null, contractAddress, data);
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EthCall ethCall;
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try {
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ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
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List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
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decimals = (BigInteger) results.get(0).getValue();
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} catch (IOException e) {
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e.printStackTrace();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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int decimal = decimals();
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double res = new BigDecimal(decimals).divide(BigDecimal.valueOf(Math.pow(10, decimal)), 8, RoundingMode.HALF_DOWN).doubleValue();
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if (res > 0) {
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return new BigDecimal(res);
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}
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return BigDecimal.ZERO;
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}
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@Override
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public BigInteger allowance(String address) {
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String methodName = "allowance";
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List<TypeReference<?>> outputParameters = new ArrayList<>();
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TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
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};
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outputParameters.add(typeReference);
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Function function = new Function(methodName,
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Arrays.asList(new Address(address), new Address(ownerAddress))
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, outputParameters);
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String data = FunctionEncoder.encode(function);
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Transaction transaction = Transaction.createEthCallTransaction(ownerAddress, contractAddress, data);
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EthCall ethCall = null;
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try {
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ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
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List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
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return (BigInteger) results.get(0).getValue();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return BigInteger.ZERO;
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}
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@Override
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public boolean isAllowance(String address) {
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return allowance(address).intValue() != 0;
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}
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public String getGas() {
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String gas = "1";
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// String gas;
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// if (url.contains("infura.io")) {
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// String resp = HttpUtil.get("https://etherscan.io/autoUpdateGasTracker.ashx?sid=75f30b765180f29e2b7584b8501c9124");
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// JSONObject data = JSONObject.parseObject(resp);
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// gas = data.getString("avgPrice");
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// } else {
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// String resp = HttpUtil.get("https://gbsc.blockscan.com/gasapi.ashx?apikey=key&method=gasoracle");
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// JSONObject data = JSONObject.parseObject(resp);
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// gas = data.getString("FastGasPrice");
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// }
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return StrUtil.isBlank(gas) ? "35" : gas;
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}
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@Override
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public String transfer(String address) {
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BigDecimal balance = balanceOf(address);
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return transfer(address, balance);
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}
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@Override
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public String transfer(String address, BigDecimal amount) {
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try {
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return tokenTransfer(privateKey, ownerAddress, address, amount.toPlainString());
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} catch (ExecutionException | InterruptedException e) {
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e.printStackTrace();
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return "";
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}
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}
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public String tokenTransferFrom(String privateKey, String fromAddress, String toAddress, String amount) throws ExecutionException, InterruptedException {
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String gas = getGas();
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BigDecimal amountPow = new BigDecimal(amount).multiply(BigDecimal.TEN.pow(decimals()));
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amount = amountPow.toPlainString();
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if (amount.contains(".")) {
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amount = amount.substring(0, amount.lastIndexOf("."));
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}
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Credentials credentials = Credentials.create(privateKey);
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EthGetTransactionCount ethGetTransactionCount = web3j
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.ethGetTransactionCount(fromAddress, DefaultBlockParameterName.LATEST).sendAsync().get();
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BigInteger nonce = ethGetTransactionCount.getTransactionCount();
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Function function = new Function("transferFrom",
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Arrays.asList(new Address(fromAddress), new Address(toAddress), new Uint256(new BigInteger(amount))),
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Arrays.asList(new TypeReference<Type>() {
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}));
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String encodedFunction = FunctionEncoder.encode(function);
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RawTransaction rawTransaction = RawTransaction.createTransaction(nonce,
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Convert.toWei(gas, Convert.Unit.GWEI).toBigInteger(),// 给矿工开的转账单价 单价越高越快
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Convert.toWei("100000", Convert.Unit.WEI).toBigInteger(), contractAddress, encodedFunction);//里程上限
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byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
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String hexValue = Numeric.toHexString(signedMessage);
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CompletableFuture<EthSendTransaction> ethSendTransactionCompletableFuture = web3j.ethSendRawTransaction(hexValue).sendAsync();
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EthSendTransaction ethSendTransaction = ethSendTransactionCompletableFuture.get();
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if (ethSendTransaction.hasError()) {
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return "";
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} else {
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return ethSendTransaction.getTransactionHash();
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}
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}
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public String tokenTransfer(String privateKey, String fromAddress, String toAddress, String amount) throws ExecutionException, InterruptedException {
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String gas = getGas();
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BigDecimal amountPow = new BigDecimal(amount).multiply(BigDecimal.TEN.pow(decimals()));
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amount = amountPow.toPlainString();
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if (amount.contains(".")) {
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amount = amount.substring(0, amount.lastIndexOf("."));
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}
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Credentials credentials = Credentials.create(privateKey);
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EthGetTransactionCount ethGetTransactionCount = web3j
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.ethGetTransactionCount(fromAddress, DefaultBlockParameterName.LATEST).sendAsync().get();
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BigInteger nonce = ethGetTransactionCount.getTransactionCount();
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Function function = new Function("transfer",
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Arrays.asList(new Address(toAddress), new Uint256(new BigInteger(amount))),
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Arrays.asList(new TypeReference<Type>() {
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}));
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String encodedFunction = FunctionEncoder.encode(function);
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RawTransaction rawTransaction = RawTransaction.createTransaction(nonce,
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Convert.toWei(gas, Convert.Unit.GWEI).toBigInteger(),// 给矿工开的转账单价 单价越高越快
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Convert.toWei("100000", Convert.Unit.WEI).toBigInteger(), contractAddress, encodedFunction);//里程上限
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byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
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String hexValue = Numeric.toHexString(signedMessage);
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CompletableFuture<EthSendTransaction> ethSendTransactionCompletableFuture = web3j.ethSendRawTransaction(hexValue).sendAsync();
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EthSendTransaction ethSendTransaction = ethSendTransactionCompletableFuture.get();
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if (ethSendTransaction.hasError()) {
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return "";
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} else {
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return ethSendTransaction.getTransactionHash();
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}
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}
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@Override
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public int allowanceCnt(String address) {
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String allowanceUrl;
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if (url.contains("infura.io")) {
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allowanceUrl = "https://etherscan.io/tokenapprovalchecker.aspx/GetApprovedContract";
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} else {
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allowanceUrl = "https://bscscan.com/tokenapprovalchecker.aspx/GetApprovedContract";
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}
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String baseData = "{\"dataTableModel\":{\"draw\":3,\"columns\":[{\"data\":\"TxnHash\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"Block\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"Token\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"ApprovedSpender\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"ApprovedAmount\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"LastUpdated\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"Action\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}}],\"order\":[],\"start\":0,\"length\":25,\"search\":{\"value\":\"\",\"regex\":false}},\"model\":{\"address\":\"{address}\",\"filteredContract\":\"\"}}";
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String data = baseData.replace("{address}", address);
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String resp = HttpUtil.post(allowanceUrl, data);
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JSONObject jsonObject = JSONObject.parseObject(resp);
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JSONObject result = JSONObject.parseObject(jsonObject.getString("d"));
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return result.getIntValue("recordsTotal");
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}
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@Override
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public BigInteger blockNumber() {
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Request<?, EthBlockNumber> request = web3j.ethBlockNumber();
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EthBlockNumber send = null;
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try {
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send = request.send();
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} catch (IOException e) {
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e.printStackTrace();
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}
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if (send != null) {
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return Numeric.decodeQuantity(send.getResult());
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} else {
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throw new NullPointerException();
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}
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}
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@Override
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public BigInteger totalSupply() {
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try {
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String methodName = "totalSupply";
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List<Type> inputParameters = new ArrayList<>();
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List<TypeReference<?>> outputParameters = new ArrayList<>();
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TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
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};
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outputParameters.add(typeReference);
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Function function = new Function(methodName, inputParameters, outputParameters);
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String data = FunctionEncoder.encode(function);
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Transaction transaction = Transaction.createEthCallTransaction(null, contractAddress, data);
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EthCall ethCall;
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BigInteger totalSupply = BigInteger.ZERO;
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try {
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ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
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List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
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totalSupply = (BigInteger) results.get(0).getValue();
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return totalSupply.divide(BigInteger.TEN.pow(decimals()));
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} catch (IOException e) {
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e.printStackTrace();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return BigInteger.ZERO;
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}
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}
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