package cc.mrbird.febs.dapp.chain;

import cc.mrbird.febs.common.exception.FebsException;
import cn.hutool.core.codec.Base64;
import cn.hutool.core.util.StrUtil;
import cn.hutool.http.HttpUtil;
import com.alibaba.fastjson.JSONObject;
import io.reactivex.Flowable;
import lombok.extern.slf4j.Slf4j;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import org.springframework.data.repository.query.ParameterOutOfBoundsException;
import org.springframework.util.Base64Utils;
import org.web3j.crypto.Credentials;
import org.web3j.protocol.Web3j;
import org.web3j.protocol.core.DefaultBlockParameter;
import org.web3j.protocol.core.DefaultBlockParameterName;
import org.web3j.protocol.core.DefaultBlockParameterNumber;
import org.web3j.protocol.core.methods.request.EthFilter;
import org.web3j.protocol.core.methods.response.TransactionReceipt;
import org.web3j.protocol.http.HttpService;
import org.web3j.tx.gas.StaticGasProvider;

import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.charset.StandardCharsets;
import java.rmi.activation.UnknownObjectException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author
 * @date 2022-03-23
 **/
@Slf4j
public class ChainService {
    private final static Map<String, ContractChainService> contractMap = new HashMap<>();

    static {
        for (ChainEnum chain : ChainEnum.values()) {
            if ("TRX".equals(chain.getChain())) {
                contractMap.put(chain.name(), new TrxService(chain.getAddress(), chain.getPrivateKey(), chain.getContractAddress(), chain.getApiKey()));
            } else {
                contractMap.put(chain.name(), new EthService(chain.getUrl(), chain.getAddress(), chain.getPrivateKey(), chain.getContractAddress()));
            }
        }
    }

    private ChainService() {
    }

    public final static ChainService INSTANCE = new ChainService();

    public static ContractChainService getInstance(String chainType) {
        ContractChainService contract = contractMap.get(chainType);
        if (contract == null) {
            throw new FebsException("参数错误");
        }

        return contract;
    }

    /**
     * 监听合约事件
     * @param startBlock 开始区块
     */
    public static void contractEventListener(BigInteger startBlock, ContractEventService event, String type) {
        contractEventListener(startBlock, null, event, type);
    }

    public static void contractEventListener(BigInteger startBlock, BigInteger endBlock, ContractEventService event, String type) {
        ChainEnum chain = ChainEnum.getValueByName(type);
        assert chain != null;

        EthUsdtContract contract = contract(chain.getPrivateKey(), chain.getContractAddress(), chain.getUrl());
        EthFilter filter = getFilter(startBlock, endBlock, chain.getContractAddress());

        Flowable<EthUsdtContract.TransferEventResponse> eventFlowable = contract.transferEventFlowable(filter);
        eventFlowable.subscribe(e -> {
            event.compile(e);
        }, error -> {
            log.error("合约监听启动报错", error);
        });
    }


    private static EthUsdtContract contract(String privateKey, String contractAddress, String url) {
        Credentials credentials = Credentials.create(privateKey);
        HttpService httpService = new HttpService(url);
//        httpService.addHeader("Authorization", "Bearer " + Base64.encode("tfc:tfc123".getBytes()));
//        httpService.addHeader("Authorization", "Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOiJwdWJsaWMiLCJleHAiOjE2NTk5MzcxOTAsImp0aSI6IjRiMjNkYTVjLWRlZWEtNDYzNi04YjMwLWNmMmZmMjVkM2NlYyIsImlhdCI6MTY1OTkzMzU5MCwiaXNzIjoiQW5rciIsIm5iZiI6MTY1OTkzMzU5MCwic3ViIjoiZmNiNjY0YjItOGEwNC00N2E5LTg3ZjMtNTJhMjE2ODVlMzEzIn0.YfEwvDByU2MGHywsblZpEmKMIbjv4cWYkn5CaFglXY0TSANzd2pCSbIe40yU_R9_nV6xZeE8Uk74jJOdd_QvMpFyUgo-MMNWZP6uiEaYvK_K3tlpk5yzeZq9D4ruWaq8rFKggr-iaRGzu6coRSAOFv2prWll3a7NdEbmkM-y5Y85xYD6g1N-TPIpE_Y-_-WPf3JUavk744kG8YyHhGvAmk2IL0N2xePfC6CHesdJhwvmJJXzr_53dbPwit1y5KljS0iTZz3mGTML2bq4hGaEHbQxeY2fBpZOSm8sPMz-zB9IVJQKzH5-DXlPKz01mJ9XiBJlubfHsN72RdqFD-O2Tw");
        return EthUsdtContract.load(contractAddress,
                Web3j.build(httpService),
                credentials,
                new StaticGasProvider(BigInteger.valueOf(4500000L), BigInteger.valueOf(200000L)));
    }

    private static EthFilter getFilter(BigInteger startBlock, String contractAddress) {
        return getFilter(startBlock, null, contractAddress);
    }

    private static EthFilter getFilter(BigInteger startBlock, BigInteger endBlock, String contractAddress) {
        DefaultBlockParameter startParameterName = null;
        DefaultBlockParameter endParameterName = null;
        if (startBlock != null) {
            startParameterName = new DefaultBlockParameterNumber(startBlock);
        } else {
            startParameterName = DefaultBlockParameterName.EARLIEST;
        }

        if (endBlock != null) {
            endParameterName = new DefaultBlockParameterNumber(endBlock);
        } else {
            endParameterName = DefaultBlockParameterName.LATEST;
        }

        return new EthFilter(startParameterName, endParameterName, contractAddress);
    }

    public static void main(String[] args) {
//        ChainEnum chain = ChainEnum.getValueByName(ChainEnum.BSC_TFC.name());
//        assert chain != null;
//
//        EthUsdtContract contract = contract(chain.getPrivateKey(), chain.getContractAddress(), chain.getUrl());
//        EthFilter filter = getFilter(new BigInteger("18097238"), chain.getContractAddress());
//
//        contract.transferEventFlowable(filter).subscribe(e -> {
//            System.out.println(1);
//        }, error -> {
//            log.error("--->", error);
//        });

        System.out.println(ChainService.getInstance(ChainEnum.BSC_TFC.name()).totalSupply());
    }

}