package com.xcong.excoin.modules.blackchain.service;

import com.alibaba.fastjson.JSONObject;
import com.xcong.excoin.common.enumerates.CoinTypeEnum;
import com.xcong.excoin.modules.blackchain.model.EthUsdtChargeDto;
import com.xcong.excoin.modules.member.dao.MemberCoinAddressDao;
import com.xcong.excoin.rabbit.producer.UsdtUpdateProducer;
import com.xcong.excoin.utils.RedisUtils;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.web3j.crypto.Credentials;
import org.web3j.protocol.Web3j;
import org.web3j.protocol.core.DefaultBlockParameterName;
import org.web3j.protocol.core.DefaultBlockParameterNumber;
import org.web3j.protocol.core.methods.request.EthFilter;
import org.web3j.protocol.http.HttpService;
import org.web3j.tx.gas.StaticGasProvider;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
public class UsdtErc20UpdateService {

    @Resource
    private UsdtUpdateProducer usdtUpdateProducer;

    @Resource
    private MemberCoinAddressDao  coinWalletDao;

    public final static List<String> ALL_ADDRESS_LIST = new ArrayList<>();

    public final static String ETH_USDT_BLOCK_NUM = "ETH_USDT_BLOCK_NUM";

    private final static BigDecimal DIVIDE_USDT = new BigDecimal("1000000");

    private static Web3j web3;

    private static Web3j getInstance() {
        if (web3 == null) {
            HttpService httpService = new HttpService(blockchainNode);
            web3 = Web3j.build(httpService);
        }
        return web3;
    }

    public static  BigInteger GAS_PRICE = BigInteger.valueOf(45000000000L);
    //public static final BigInteger GAS_LIMIT = BigInteger.valueOf(4300000L);
    public static final BigInteger GAS_LIMIT = BigInteger.valueOf(2000000L);
    private static StaticGasProvider getStaticGasProvider(){
        return new StaticGasProvider(GAS_PRICE,GAS_LIMIT);
    }

    private static Web3j getInstanceScope() {

        HttpService httpService = new HttpService(blockchainNode);
        return Web3j.build(httpService);
    }

    //private static String blockchainNode = "http://114.55.250.231:8545";
    private static String blockchainNode = "http://120.55.86.146:8545";

    private static String contractAddr = "0xdac17f958d2ee523a2206206994597c13d831ec7";


    // 操作账号
    private static String privateKey = "4576fafdd215f52051c60e04618ef8997fbc5cee8413d3b34d210e296e6e9a3d";


    @Resource
    private RedisUtils redisUtils;


    public void updateUsdt(){
        // 首先查询所有的钱包地址
        List<String> tdCoinWallets = coinWalletDao.selectAllSymbolAddress(CoinTypeEnum.USDT.toString(),"ERC20");
        if(tdCoinWallets!=null){
            ALL_ADDRESS_LIST.addAll(tdCoinWallets);
        }
        // 获取最新区块
        String string = redisUtils.getString(ETH_USDT_BLOCK_NUM);
        if(string==null){
            string = "11892420";
        }
        BigInteger blockNum = new BigInteger(string);
        Credentials credentials = Credentials.create(privateKey);
        EthUsdtContract contract = EthUsdtContract.load(contractAddr, getInstance(), credentials, getStaticGasProvider());
        EthFilter filter = getFilter(blockNum);
        Map<String,BigInteger> map = new HashMap<String,BigInteger>();
        map.put("blockNum",blockNum);
        contract.transferEventFlowable(filter).subscribe(e->{
            if(e!=null && StringUtils.isNotBlank(e.to) &&  e.log.getBlockNumber()!=null){
                String transactionHash = e.log.getTransactionHash();
                BigInteger blockNumber1 = e.log.getBlockNumber();
                String toAddress = e.to;
                BigInteger tokenBalance = e.tokens;
                if(ALL_ADDRESS_LIST.contains(toAddress)){
                    System.out.println("存在本地的地址："+toAddress);
                    // 金额
                    BigDecimal divide = new BigDecimal(tokenBalance.toString()).divide(DIVIDE_USDT);
                    // 发送消息队列
                    EthUsdtChargeDto dto = new EthUsdtChargeDto(toAddress,transactionHash,divide);
                    dto.setSymbol(EthUsdtChargeDto.Symbol.USDT_ERC20);
                    usdtUpdateProducer.sendMsg(JSONObject.toJSONString(dto));
                }
                if(map.get("blockNum").compareTo(blockNumber1)!=0){
                    redisUtils.set(ETH_USDT_BLOCK_NUM,blockNumber1.toString());
                    map.put("blockNum",blockNumber1);
                }
            }
        });

    }


    private static EthFilter getFilter(BigInteger startBlock) {
        if (startBlock != null) {
            EthFilter filter = new EthFilter(new DefaultBlockParameterNumber(startBlock),
                    DefaultBlockParameterName.LATEST, contractAddr);
            return filter;
        } else {
            return new EthFilter(DefaultBlockParameterName.EARLIEST,
                    DefaultBlockParameterName.LATEST, contractAddr);
        }
    }

}