package com.mzl.flower.service.impl.wallet;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mzl.flower.config.PyamentV3Configurer;
import com.mzl.flower.config.exception.ValidationException;
import com.mzl.flower.config.security.SecurityUtils;
import com.mzl.flower.constant.Constants;
import com.mzl.flower.constant.LockConstants;
import com.mzl.flower.dto.request.payment.TransferDetailReqDTO;
import com.mzl.flower.dto.request.payment.TransferReqDTO;
import com.mzl.flower.dto.request.wallet.CreateWalletWithdrawRecordDTO;
import com.mzl.flower.dto.request.wallet.QueryWalletWithdrawDTO;
import com.mzl.flower.dto.request.wallet.WalletWithdrawRecordDTO;
import com.mzl.flower.dto.response.supplier.SupplierDTO;
import com.mzl.flower.dto.response.wallet.WalletWithdrawRecordVO;
import com.mzl.flower.entity.supplier.Supplier;
import com.mzl.flower.entity.system.UserWechat;
import com.mzl.flower.entity.wallet.WalletBillRecordDO;
import com.mzl.flower.entity.wallet.WalletDO;
import com.mzl.flower.entity.wallet.WalletWithdrawRecordDO;
import com.mzl.flower.mapper.supplier.SupplierMapper;
import com.mzl.flower.mapper.system.UserWechatMapper;
import com.mzl.flower.mapper.wallet.WalletBillRecordMapper;
import com.mzl.flower.mapper.wallet.WalletMapper;
import com.mzl.flower.mapper.wallet.WalletWithdrawRecordMapper;
import com.mzl.flower.service.payment.UserPaymentV3Service;
import com.mzl.flower.service.supplier.SupplierService;
import com.mzl.flower.service.wallet.WalletBillRecordService;
import com.mzl.flower.service.wallet.WalletService;
import com.mzl.flower.service.wallet.WalletWithdrawRecordService;
import com.mzl.flower.utils.UUIDGenerator;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * <p>
 * 服务实现类
 * </p>
 *
 * @author @TaoJie
 * @since 2024-10-22
 */
@Slf4j
@Service
@Transactional
@RequiredArgsConstructor
public class WalletWithdrawRecordServiceImpl extends ServiceImpl<WalletWithdrawRecordMapper, WalletWithdrawRecordDO> implements WalletWithdrawRecordService {

    private final WalletWithdrawRecordMapper walletWithdrawRecordMapper;
    private final WalletService walletService;
    private final SupplierService supplierService;
    private final SupplierMapper supplierMapper;
    private final UserWechatMapper wechatMapper;
    private final UserPaymentV3Service paymentV3Service;

    private final WalletBillRecordMapper walletBillRecordMapper;

    private final WalletBillRecordService walletBillRecordService;

    private final WalletMapper walletMapper;


    @Autowired
    RedissonClient redissonClient;

    @Transactional
    @Override
    public boolean create(CreateWalletWithdrawRecordDTO dto) {

        SupplierDTO supplierDTO = supplierService.getCurrentSupplier();
        if (null == supplierDTO) {
            throw new ValidationException("供应商不能为空");
        }

        WalletDO walletDO = walletService.getCurrentSupplier();
        if (null == walletDO) {
            throw new ValidationException("钱包不能为空");
        }
        // 查看钱包的金额是不是大于要提现的金额
        if (null != walletDO.getWithdrawableAmount() && null != dto.getAmount() && walletDO.getWithdrawableAmount().compareTo(dto.getAmount()) < 0) {
            throw new ValidationException("钱包金额不足");
        }

        RLock lock = redissonClient.getLock(String.format(LockConstants.WALLET_ID_KEY, walletDO.getId()));
        // 获取锁，最多等待 10 秒，锁自动释放时间 30 秒
        try {
            if (lock.tryLock(10, 30, TimeUnit.SECONDS)) {
                try {

                    // 加锁了之后需要二次查询，防止未加锁之前 someone else 已经修改了
                    walletDO = walletService.getCurrentSupplier();
                    if (null == walletDO) {
                        throw new ValidationException("钱包不能为空");
                    }
                    // 查看钱包的金额是不是大于要提现的金额
                    if (null != walletDO.getWithdrawableAmount() && null != dto.getAmount() && walletDO.getWithdrawableAmount().compareTo(dto.getAmount()) < 0) {
                        throw new ValidationException("钱包金额不足");
                    }

                    // 1.新增一条余额提现记录
                    WalletWithdrawRecordDO withdrawRecordDO = new WalletWithdrawRecordDO();
                    //原金额
                    withdrawRecordDO.setOriginalAmount(walletDO.getWithdrawableAmount());
                    // 变动金额
                    withdrawRecordDO.setChangeAmount(dto.getAmount());
                    // 余额
                    withdrawRecordDO.setBalance(walletDO.getWithdrawableAmount().subtract(dto.getAmount()));
                    withdrawRecordDO.setAmount(dto.getAmount());
                    withdrawRecordDO.setSupplierId(supplierDTO.getId());
                    withdrawRecordDO.setWithdrawState(Constants.BILL_WITHDRAW_TYPE.start.name());
                    withdrawRecordDO.setMethod(Constants.WALLET_WITHDRAW_METHOD.WEIXIN.name());
                    withdrawRecordDO.setWithdrawType(Constants.WALLET_WITHDRAW_TYPE.BALANCE.name());
                    // 待审核状态
                    withdrawRecordDO.setApproveState(Constants.WALLET_APPROVE_STATE.WAITING.name());

                    withdrawRecordDO.create(SecurityUtils.getUserId());

                    // 保存余额提现记录
                    save(withdrawRecordDO);


                    // 2.新增一条账单明细
                    WalletBillRecordDO walletBillRecordDO=new WalletBillRecordDO();
                    walletBillRecordDO.setId(UUIDGenerator.getUUID());
                    walletBillRecordDO.setSupplierId(supplierDTO.getId());
                    walletBillRecordDO.setWalletId(walletDO.getId());
                    walletBillRecordDO.setType(Constants.BILL_CHANGE_TYPE.withdraw.name());
                    // 发起提现
                    walletBillRecordDO.setWithdrawType(Constants.BILL_WITHDRAW_TYPE.start.name());
                    walletBillRecordDO.setMethod(Constants.BILL_CHANGE_METHOD.reduce.name());
                    walletBillRecordDO.setOriginalAmount(walletDO.getWithdrawableAmount());
                    walletBillRecordDO.setChangeAmount(dto.getAmount());
                    walletBillRecordDO.setBalance(walletDO.getWithdrawableAmount().subtract(dto.getAmount()));
                    walletBillRecordDO.create(SecurityUtils.getUserId());
                    walletBillRecordDO.setWithdrawRecordId(withdrawRecordDO.getId());
                    walletBillRecordDO.setRemark("提现中");

                    // 保存账单明细
                    walletBillRecordService.save(walletBillRecordDO);



                    // 3. 钱包更新
                    // 钱包可提现的钱等于当前钱包可提现的钱-提现的钱
                    walletDO.setWithdrawableAmount(walletDO.getWithdrawableAmount().subtract(dto.getAmount()));
                    // 提现中的钱等于原有可提现的钱+提现的钱
                    walletDO.setWithdrawingAmount(walletDO.getWithdrawingAmount().add(dto.getAmount()));
                    walletDO.update(SecurityUtils.getUserId());

                    // 更新钱包
                    return walletService.updateById(walletDO);

                } finally {
                    lock.unlock();
                }
            }
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }

        return false;
    }

    @Override
    public Page<WalletWithdrawRecordVO> queryPage(QueryWalletWithdrawDTO queryWalletDTO, Page page) {
        try {
            if (!StringUtils.isEmpty(queryWalletDTO.getSupplierId())) {
                Long supplierId = Long.parseLong(queryWalletDTO.getSupplierId());
            }
        } catch (Exception e) {
            throw new ValidationException("供应商ID格式不正确");
        }
        List<WalletWithdrawRecordVO> list = walletWithdrawRecordMapper.queryPage(queryWalletDTO, page);
        page.setRecords(list);
        return page;
    }

    @Override
    public void updateWallet(WalletWithdrawRecordDTO walletWithdrawRecordDTO) {

        WalletWithdrawRecordDO withdrawRecordDO = walletWithdrawRecordMapper.selectById(walletWithdrawRecordDTO.getId());
        final String approveState = withdrawRecordDO.getApproveState();
        if (withdrawRecordDO == null) {
            throw new ValidationException("提现记录信息不存在");
        }

        if (StringUtils.isEmpty(walletWithdrawRecordDTO.getApproveState())) {
            throw new ValidationException("审批状态不能为空");
        }

        if (Constants.WALLET_APPROVE_STATE.REJECT.name().equals(walletWithdrawRecordDTO.getApproveState())) {
            if (StringUtils.isEmpty(walletWithdrawRecordDTO.getRejectReason())) {
                throw new ValidationException("不通过理由不能为空");
            }
        }

        BeanUtils.copyProperties(walletWithdrawRecordDTO, withdrawRecordDO);
        withdrawRecordDO.update(SecurityUtils.getUserId());
        withdrawRecordDO.setApproveState(walletWithdrawRecordDTO.getApproveState());
        withdrawRecordDO.setApproveBy(withdrawRecordDO.getUpdateBy());
        withdrawRecordDO.setApproveTime(LocalDateTime.now());
        if(Constants.WALLET_APPROVE_STATE.REJECT.name().equals(walletWithdrawRecordDTO.getApproveState())){
            //如果拒绝直接提现失败
            withdrawRecordDO.setWithdrawState(Constants.BILL_WITHDRAW_TYPE.fail.name());
        }
        walletWithdrawRecordMapper.updateById(withdrawRecordDO);

        //审批通过之后写转账信息
        if (Constants.WALLET_APPROVE_STATE.APPROVE.name().equals(walletWithdrawRecordDTO.getApproveState())) {
            RLock recordLock = redissonClient.getLock(String.format(LockConstants.WALLET_WITHDRAW_RECORD_KEY, walletWithdrawRecordDTO.getId()));
            try {
                if (recordLock.tryLock(10, 30, TimeUnit.SECONDS)) {
                    try {
                        if(!approveState.equals(Constants.WALLET_APPROVE_STATE.WAITING.name())){
                            String msg =  "重复通过";
                            throw new ValidationException(msg);
                        }
                        Supplier s = supplierMapper.selectById(withdrawRecordDO.getSupplierId());
                        WalletDO walletDO = walletService.getOrCreateBySupplierId(s.getId());
                        RLock lock = redissonClient.getLock(String.format(LockConstants.WALLET_ID_KEY, walletDO.getId()));
                        try {
                            if (lock.tryLock(10, 30, TimeUnit.SECONDS)) {
                                try {
                                    if (!ObjectUtils.isEmpty(walletDO)) {
                                        String name = "";
                                        name = "供应商" + s.getName();
                                        UserWechat wechat = wechatMapper.selectOne(new QueryWrapper<UserWechat>().eq("user_id", s.getUserId()));

                                        if (wechat == null) {
                                            String msg = name + "未绑定账号无法提现";
                                            log.error(msg);
                                            throw new ValidationException(msg);
                                        }

                                        LocalDateTime now = LocalDateTime.now();
                                        String day = format(now, "yyyy-MM-dd");
                                        String remarks = name + "钱包提现";
                                        String appId = PyamentV3Configurer.supplier_app_id;
                                        TransferReqDTO transferReqDTO = new TransferReqDTO();
                                        transferReqDTO.setId(UUIDGenerator.getUUID());
                                        transferReqDTO.setAppId(appId);
                                        transferReqDTO.setName(day + "日" + remarks);
                                        transferReqDTO.setRemarks(remarks);

                                        //保存账单信息
//                                        WalletBillRecordDO walletBillRecordDO = new WalletBillRecordDO();
//                                        walletBillRecordDO.setSupplierId(s.getId());
//                                        walletBillRecordDO.setType(Constants.BILL_CHANGE_TYPE.withdraw.name());
//                                        walletBillRecordDO.setWithdrawType(Constants.BILL_WITHDRAW_TYPE.success.name());
//                                        walletBillRecordDO.setMethod(Constants.BILL_CHANGE_METHOD.reduce.name());
//                                        walletBillRecordDO.setTransferId(transferReqDTO.getId());
//                                        walletBillRecordDO.setWithdrawRecordId(withdrawRecordDO.getId());
//                                        walletBillRecordDO.create();
//                                        walletBillRecordDO.setOriginalAmount(walletDO.getWithdrawableAmount());
//                                        walletBillRecordDO.setChangeAmount(BigDecimal.ZERO);
//                                        walletBillRecordDO.setBalance(walletDO.getWithdrawableAmount());
                                        WalletBillRecordDO walletBillRecordDO = walletBillRecordService.getBillRecordByWithdrawRecordId(withdrawRecordDO.getId());
                                        if(ObjectUtils.isEmpty(walletBillRecordDO)){
                                            throw new ValidationException("提现没有对应的账单信息");
                                        }
                                        walletBillRecordDO.setTransferId(transferReqDTO.getId());
                                        //提现金额
                                        BigDecimal withdrawAmount = withdrawRecordDO.getAmount();

                                        if (withdrawAmount.doubleValue() > 0) {//结算金额>0时才去转账
                                            TransferDetailReqDTO dr = new TransferDetailReqDTO();
                                            dr.setId(UUIDGenerator.getUUID());
                                            dr.setAmount(withdrawAmount.multiply(new BigDecimal(100)).longValue());
                                            dr.setOpenId(wechat.getOpenId());
                                            dr.setRemarks(remarks);
                                            if (withdrawAmount.doubleValue() >= 2000) {
                                                dr.setUserName(wechat.getRealName());
                                            }

                                            List<TransferDetailReqDTO> details = new ArrayList<>();
                                            details.add(dr);
                                            walletBillRecordDO.setTransferDetailId(dr.getId());
                                            log.info("发起转账");
                                            transferReqDTO.setDetails(details);
                                            try {
                                                //发起转账
                                                 paymentV3Service.doBatchTransfer(transferReqDTO, SecurityUtils.getUserId());
                                            } catch (Exception e) {
                                                throw new ValidationException(e.getMessage());
                                            }
                                        }

                                        //记录转账状态，定时任务定时获取状态并更新钱包交易记录表信息
                                        walletBillRecordDO.setRemark("微信商户转账中");
                                        walletBillRecordDO.setActualTransferAmount(withdrawAmount);
                                        walletBillRecordDO.setApproveBy(SecurityUtils.getUserId());
                                        walletBillRecordDO.setApproveTime(LocalDateTime.now());
                                        walletBillRecordMapper.updateById(walletBillRecordDO);
                                        //不需要更新结算单了，此时提现的金额和计算单上的金额不一致
                                    }
                                } finally {
                                    lock.unlock();
                                }
                            }
                        } catch (InterruptedException e) {
                            throw new RuntimeException(e);
                        }
                    } finally {
                        recordLock.unlock();
                    }
                }
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
        }

        if (Constants.WALLET_APPROVE_STATE.REJECT.name().equals(walletWithdrawRecordDTO.getApproveState())) {
            //更新钱包
            Supplier s = supplierMapper.selectById(withdrawRecordDO.getSupplierId());

            WalletDO walletDO = walletService.getOrCreateBySupplierId(s.getId());
            RLock lock = redissonClient.getLock(String.format(LockConstants.WALLET_ID_KEY, walletDO.getId()));
            try {
                if (lock.tryLock(10, 30, TimeUnit.SECONDS)) {
                    try {
                        if (!ObjectUtils.isEmpty(walletDO)) {
                            // 2.新增一条账单明细
                            WalletBillRecordDO walletBillRecordDO = new WalletBillRecordDO();
                            walletBillRecordDO.setId(UUIDGenerator.getUUID());
                            walletBillRecordDO.setSupplierId(walletDO.getSupplierId());
                            walletBillRecordDO.setWalletId(walletDO.getId());
                            walletBillRecordDO.setType(Constants.BILL_CHANGE_TYPE.withdraw.name());
                            // 发起提现
                            walletBillRecordDO.setWithdrawType(Constants.BILL_WITHDRAW_TYPE.fail.name());
                            walletBillRecordDO.setMethod(Constants.BILL_CHANGE_METHOD.add.name());
                            walletBillRecordDO.setOriginalAmount(walletDO.getWithdrawableAmount());
                            walletBillRecordDO.setChangeAmount(withdrawRecordDO.getAmount());
                            walletBillRecordDO.setBalance(walletDO.getWithdrawableAmount().add(withdrawRecordDO.getAmount()));
                            walletBillRecordDO.create(SecurityUtils.getUserId());
                            walletBillRecordDO.setId(UUIDGenerator.getUUID());
                            walletBillRecordDO.setRemark("平台审核拒绝，余额返还钱包");
                            walletBillRecordDO.setApproveBy("sys");
                            walletBillRecordDO.setApproveTime(LocalDateTime.now());
                            // 保存账单明细
                            walletBillRecordService.save(walletBillRecordDO);

                            //提现中金额:审核失败体现中金额扣减
                            walletDO.setWithdrawingAmount(walletDO.getWithdrawingAmount().subtract(withdrawRecordDO.getAmount()));
                            //可提现金额:审核失败可提现金额增加
                            walletDO.setWithdrawableAmount(walletDO.getWithdrawableAmount().add(withdrawRecordDO.getAmount()));
                            walletMapper.updateById(walletDO);
                        }
                    } finally {
                        lock.unlock();
                    }
                }
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
        }
    }
    public String format(LocalDateTime dateTime, String format) {
        if (dateTime == null || format == null) {
            return null;
        }
        DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(format).withZone(ZoneId.of("Asia/Shanghai"));
        return dateTimeFormatter.format(dateTime);
    }
}