package com.xcong.excoin.modules.blackchain.service;
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import com.alibaba.fastjson.JSONObject;
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import com.xcong.excoin.common.enumerates.CoinTypeEnum;
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import com.xcong.excoin.modules.blackchain.model.EthUsdtChargeDto;
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import com.xcong.excoin.modules.member.dao.MemberCoinAddressDao;
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import com.xcong.excoin.rabbit.producer.UsdtUpdateProducer;
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import com.xcong.excoin.utils.RedisUtils;
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import org.apache.commons.lang.StringUtils;
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import org.springframework.stereotype.Service;
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import org.web3j.crypto.Credentials;
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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.DefaultBlockParameterNumber;
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import org.web3j.protocol.core.methods.request.EthFilter;
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import org.web3j.protocol.http.HttpService;
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import org.web3j.tx.gas.StaticGasProvider;
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import javax.annotation.Resource;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.util.ArrayList;
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import java.util.List;
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@Service
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public class UsdtErc20UpdateService {
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@Resource
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private UsdtUpdateProducer usdtUpdateProducer;
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@Resource
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private MemberCoinAddressDao coinWalletDao;
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public final static List<String> ALL_ADDRESS_LIST = new ArrayList<>();
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public final static String USDT_BLOCK_NUM_GOLDEN = "USDT_BLOCK_NUM_GOLDEN";
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private final static BigDecimal DIVIDE_USDT = new BigDecimal("1000000");
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private static Web3j web3;
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private static Web3j getInstance() {
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if (web3 == null) {
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HttpService httpService = new HttpService(blockchainNode);
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web3 = Web3j.build(httpService);
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}
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return web3;
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}
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public static BigInteger GAS_PRICE = BigInteger.valueOf(45000000000L);
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//public static final BigInteger GAS_LIMIT = BigInteger.valueOf(4300000L);
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public static final BigInteger GAS_LIMIT = BigInteger.valueOf(2000000L);
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private static StaticGasProvider getStaticGasProvider(){
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return new StaticGasProvider(GAS_PRICE,GAS_LIMIT);
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}
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private static Web3j getInstanceScope() {
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HttpService httpService = new HttpService(blockchainNode);
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return Web3j.build(httpService);
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}
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private static String blockchainNode = "http://120.55.86.146:8545";
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private static String contractAddr = "0xdac17f958d2ee523a2206206994597c13d831ec7";
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// 操作账号
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private static String privateKey = "4576fafdd215f52051c60e04618ef8997fbc5cee8413d3b34d210e296e6e9a3d";
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@Resource
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private RedisUtils redisUtils;
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public void updateUsdt(){
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// 首先查询所有的钱包地址
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List<String> tdCoinWallets = coinWalletDao.selectAllSymbolAddress(CoinTypeEnum.USDT.toString(),"ERC20");
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if(tdCoinWallets!=null){
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ALL_ADDRESS_LIST.addAll(tdCoinWallets);
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}
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// 获取最新区块
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String string = redisUtils.getString(USDT_BLOCK_NUM_GOLDEN);
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if(string==null){
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string = "11014249";
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}
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BigInteger blockNum = new BigInteger(string);
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Credentials credentials = Credentials.create(privateKey);
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EthUsdtContract contract = EthUsdtContract.load(contractAddr, getInstance(), credentials, getStaticGasProvider());
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EthFilter filter = getFilter(blockNum);
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contract.transferEventFlowable(filter).subscribe(e->{
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if(e!=null && StringUtils.isNotBlank(e.to)){
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String transactionHash = e.log.getTransactionHash();
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BigInteger blockNumber1 = e.log.getBlockNumber();
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String toAddress = e.to;
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BigInteger tokenBalance = e.tokens;
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if(ALL_ADDRESS_LIST.contains(toAddress)){
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System.out.println("存在本地的地址："+toAddress);
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// 金额
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BigDecimal divide = new BigDecimal(tokenBalance.toString()).divide(DIVIDE_USDT);
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// 发送消息队列
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EthUsdtChargeDto dto = new EthUsdtChargeDto(toAddress,transactionHash,divide);
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usdtUpdateProducer.sendMsg(JSONObject.toJSONString(dto));
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}
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redisUtils.set(USDT_BLOCK_NUM_GOLDEN,blockNumber1.toString());
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}
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});
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}
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private static EthFilter getFilter(BigInteger startBlock) {
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if (startBlock != null) {
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EthFilter filter = new EthFilter(new DefaultBlockParameterNumber(startBlock),
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DefaultBlockParameterName.LATEST, contractAddr);
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return filter;
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} else {
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return new EthFilter(DefaultBlockParameterName.EARLIEST,
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DefaultBlockParameterName.LATEST, contractAddr);
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}
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}
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}
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