package com.nq.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.nq.common.ResponseCode;
import com.nq.common.ServerResponse;
import com.nq.dao.StockAiMapper;
import com.nq.dao.StockAiOrderMapper;
import com.nq.dao.StockAiOrderPositionMapper;
import com.nq.enums.*;
import com.nq.pojo.*;
import com.nq.service.*;
import com.nq.vo.stock.ai.StockAIOrderPositionVO;
import com.nq.vo.stock.ai.StockAiOrderTypeVO;
import com.nq.vo.stock.ai.StockAiOrderVO;
import com.nq.vo.stock.ai.StockAiVO;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletRequest;
import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;

@Service("iStockAiService")
public class StockAiServiceImpl implements IStockAiService {
    private static final Logger log = LoggerFactory.getLogger(StockAiServiceImpl.class);
    private final ConcurrentHashMap<Long, Object> locks = new ConcurrentHashMap<>();

    @Autowired
    StockAiMapper stockAiMapper;
    @Autowired
    StockAiOrderMapper stockAiOrderMapper;
    @Autowired
    StockAiOrderPositionMapper stockAiOrderPositionMapper;
    @Autowired
    ISiteProductService iSiteProductService;
    @Autowired
    IUserService iUserService;
    @Autowired
    IUserAssetsServices iUserAssetsServices;
    @Autowired
    private UserAssetsServices userAssetsServices;

    /**
     * 获取上架ai产品
     * @param pageNum
     * @param pageSize
     * @return
     */
    @Override
    public ServerResponse getStockAiList(Integer pageNum, Integer pageSize, String stockName) {
        try {
            PageHelper.startPage(pageNum, pageSize);
            List<StockAI> stockAiList = stockAiMapper.selectList(new QueryWrapper<StockAI>()
                    .eq("status", EStockAIStatus.online.getValue())
                    .eq(StringUtils.isNotBlank(stockName),"stock_name", stockName));
            // 获取分页信息
            PageInfo<StockAI> pageInfo = new PageInfo<>(stockAiList);
            return ServerResponse.createBySuccess(pageInfo);
        } catch (Exception ex) {
            log.error("StockAiService getStockAiList error", ex);
        }
        return ServerResponse.createByError();
    }

    /**
     * 购买ai产品
     * @param id
     * @param buyNum
     * @return
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public ServerResponse buyStockAi(Long id, BigDecimal buyNum, HttpServletRequest request) {
        try {
            User user = iUserService.getCurrentUser(request);
            if (user == null ){
                return ServerResponse.createByErrorCodeMsg(ResponseCode.NEED_LOGIN.getCode(),"请先登录", request);
            }
            Object lock = locks.computeIfAbsent(Long.valueOf(user.getId()), k -> new Object());
            synchronized (lock){
                SiteProduct siteProduct = iSiteProductService.getProductSetting();
                if (siteProduct.getRealNameDisplay() && user.getIsActive() != 2) {
                    return ServerResponse.createByErrorMsg("订单失败，请先实名认证", request);
                }

                if (siteProduct.getRealNameDisplay() && user.getIsLock().intValue() == 1) {
                    return ServerResponse.createByErrorMsg("订单失败，帐户已被锁定", request);
                }

                StockAI stockAI = stockAiMapper.selectById(id);
                if (stockAI == null) {
                    return ServerResponse.createByErrorMsg("订单失败，AI股票不存在", request);
                }
                if (!stockAI.getStatus().equals(EStockAIStatus.online.getValue())) {
                    return ServerResponse.createByErrorMsg("订单失败，AI股票已下架", request);
                }
                if(buyNum.compareTo(stockAI.getMinPrice()) < 0){
                    return ServerResponse.createByErrorMsg("最低购买数量" + stockAI.getMinPrice(), request);
                }
                //获取用户账户
                UserAssets userAssets = iUserAssetsServices.assetsByTypeAndUserId(stockAI.getStockType(), user.getId());
                /*BigDecimal finalBuyNum = buyNum;
                //如果不是默认货币需要转换金额
                if (!stockAI.getStockType().equals(EStockType.getDefault().getCode())) {
                    buyNum = userAssetsServices.exchangeAmountByRate(stockAI.getStockType(), buyNum);
                }*/
                if(buyNum.compareTo(userAssets.getAvailableBalance()) > 0){
                    return ServerResponse.createByErrorMsg("可用余额不足" + userAssets.getAvailableBalance(), request);
                }

                if(userAssets.getAmountToBeCovered().compareTo(BigDecimal.ZERO) > 0){
                    return ServerResponse.createByErrorMsg("请先缴清待补资金", request);
                }
                iUserAssetsServices.aiAvailableBalanceChange(stockAI.getStockType(), user.getId(), EUserAssets.BUY_AI, buyNum);
                StockAIOrder stockAIOrder = new StockAIOrder();
                stockAIOrder.setUserId(user.getId());
                stockAIOrder.setStockAiId(id.intValue());
                stockAIOrder.setBuyDate(new Date());
                stockAIOrder.setBuyAmount(buyNum);
                stockAIOrder.setRemainAmount(buyNum);
                stockAIOrder.setRealEarning(BigDecimal.valueOf(0));
                stockAIOrder.setStatus(EStockAIOrderStatus.wait.getStatus());   //等待审核
                stockAiOrderMapper.insert(stockAIOrder);
                return ServerResponse.createBySuccessMsg("下单成功", request);
            }
        } catch (Exception e) {
            log.error("StockAiService buyStockAiList  {}", e.getMessage());
        }
        return ServerResponse.createByError();
    }

    /**
     * 获取ai产品订单
     * @param pageNum
     * @param pageSize
     * @param status
     * @param request
     * @return
     */
    @Override
    public ServerResponse getStockAiOrderList(Integer pageNum, Integer pageSize, String status, HttpServletRequest request) {
        try {
            User user = iUserService.getCurrentUser(request);
            if (user == null ){
                return ServerResponse.createByErrorCodeMsg(ResponseCode.NEED_LOGIN.getCode(),"请先登录", request);
            }
            PageHelper.startPage(pageNum, pageSize);
            List<StockAiOrderTypeVO> stockAIOrders = stockAiOrderMapper.getStockAiOrderList(user.getId(), status);
            // 获取分页信息
            PageInfo<StockAiOrderTypeVO> pageInfo = new PageInfo<>(stockAIOrders);
            return ServerResponse.createBySuccess(pageInfo);
        } catch (Exception e) {
            log.error("StockAiService getStockAiOrderList error", e);
        }
        return ServerResponse.createByError();
    }

    @Override
    public ServerResponse getAdminStockAiList(Integer pageNum, Integer pageSize, String stockType, String status, String name) {
        try {
            PageHelper.startPage(pageNum, pageSize);
            List<StockAiVO> stockAiList = stockAiMapper.getStockAiList(stockType, status, name);
            // 获取分页信息
            PageInfo<StockAiVO> pageInfo = new PageInfo<>(stockAiList);

            if (!pageInfo.getList().isEmpty()) {
                List<StockAiVO> newStockAiList = pageInfo.getList();
                pageInfo.getList().forEach(stockAiVO -> {
                    EStockType eStockType = EStockType.getEStockTypeByCode(stockAiVO.getStockType());
                    stockAiVO.setStockTypeName(eStockType.getSymbol1());
                    stockAiVO.setSymbol(stockType);
                });
                pageInfo.setList(newStockAiList);
            }
            return ServerResponse.createBySuccess(pageInfo);
        } catch (Exception ex) {
            log.error("StockAiService getAdminStockAiList error", ex);
        }
        return ServerResponse.createByError();
    }

    /**
     * 新增或修改
     * @param model
     * @return
     */
    @Override
    public ServerResponse editStockAi(StockAI model) {
        try {
            if (model == null) {
                return ServerResponse.createByErrorMsg("editStockAi model is null");
            }
            if (StringUtils.isBlank(model.getStockType()) || StringUtils.isBlank(model.getStockName()) || model.getMinPrice() == null
                || model.getSuccessRate() == null || model.getExpectedEarning() == null || StringUtils.isBlank(model.getStatus())) {
                return ServerResponse.createByErrorMsg("请完善必填信息");
            }
            if (!EStockType.isExistByCode(model.getStockType())) {
                return ServerResponse.createByErrorMsg("股票市场不存在");
            }
            //新增
            if (model.getId() == null) {
                //查询是否存在
                StockAI stockAI = stockAiMapper.selectOne(new QueryWrapper<StockAI>().eq("stock_name", model.getStockName()));
                if (stockAI != null) {
                    return ServerResponse.createByErrorMsg("当前股票已添加");
                }
                model.setCreateDate(new Date());
                stockAiMapper.insert(model);
            } else {    //修改
                stockAiMapper.updateById(model);
            }
            return ServerResponse.createBySuccess("操作成功");
        } catch (Exception e) {
            e.printStackTrace();
            log.error(e.getMessage(), e);
        }
        return ServerResponse.createByError();
    }

    /**
     * 后台查询ai交易订单
     * @param pageNum
     * @param pageSize
     * @param stockType
     * @param status
     * @param userId
     * @param phone
     * @return
     */
    @Override
    public ServerResponse getAdminStockAiOrderList(Integer pageNum, Integer pageSize, String stockType, String status, Integer userId, String phone) {
        try {
            PageHelper.startPage(pageNum, pageSize);
            List<StockAiOrderVO> stockAIOrders = stockAiOrderMapper.getAdminStockAiOrderList(stockType, status, userId, phone);
            // 获取分页信息
            PageInfo<StockAiOrderVO> pageInfo = new PageInfo<>(stockAIOrders);

            if (!pageInfo.getList().isEmpty()) {
                List<StockAiOrderVO> newStockAiOrders = pageInfo.getList();
                newStockAiOrders.forEach(stockAiOrderVO -> {
                    EStockType eStockType = EStockType.getEStockTypeByCode(stockAiOrderVO.getStockType());
                    stockAiOrderVO.setStockTypeName(eStockType.getSymbol1());
                    stockAiOrderVO.setSymbol(stockType);
                });
                pageInfo.setList(newStockAiOrders);
            }
            return ServerResponse.createBySuccess(pageInfo);
        } catch (Exception e) {
            log.error("StockAiService getAdminStockAiOrderList error", e);
        }
        return ServerResponse.createByError();
    }

    /**
     * 建仓
     * @param model
     * @return
     */
    @Override
    public ServerResponse openPosition(StockAIOrderPosition model) {
        try {
            Object lock = locks.computeIfAbsent(Long.valueOf(model.getStockAiOrderId()), k -> new Object());
            synchronized (lock) {
                StockAIOrder stockAIOrder = stockAiOrderMapper.selectById(model.getStockAiOrderId());
                if (stockAIOrder == null) {
                    return ServerResponse.createByErrorMsg("AI订单不存在");
                }

                if (!stockAIOrder.getStatus().equals(EStockAIOrderStatus.passed.getStatus())) {
                    return ServerResponse.createByErrorMsg("申请通过状态才能建仓!");
                }
                //计算剩余金额
                BigDecimal remainAmount = model.getStockPrice().multiply(BigDecimal.valueOf(model.getStockNum()));
                if (stockAIOrder.getRemainAmount().compareTo(remainAmount) < 0) {
                    return ServerResponse.createByErrorMsg("剩余买入金额不足");
                }
                stockAIOrder.setRemainAmount(stockAIOrder.getRemainAmount().subtract(remainAmount));

                //计算收益  (平仓-建仓)*数量
                BigDecimal earnings = model.getCoverPrice().subtract(model.getStockPrice()).multiply(BigDecimal.valueOf(model.getStockNum()));
                model.setCreatDate(new Date());
                model.setEarnings(earnings);
                model.setStatus(0);
                stockAIOrder.setRealEarning(stockAIOrder.getRealEarning().add(earnings));

                //保存
                stockAiOrderMapper.updateById(stockAIOrder);
                stockAiOrderPositionMapper.insert(model);
                return ServerResponse.createBySuccess("建仓成功");
            }
        } catch (Exception e) {
            log.error("StockAiService openPosition error", e);
        }
        return ServerResponse.createByError();
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ServerResponse orderOperation(Long id, String status) {
        try {
            Object lock = locks.computeIfAbsent(id, k -> new Object());
            synchronized (lock) {
                StockAIOrder stockAIOrder = stockAiOrderMapper.selectById(id);
                if (stockAIOrder == null) {
                    return ServerResponse.createByErrorMsg("AI订单不存在");
                }
                if (status.equals(EStockAIOrderStatus.passed.getStatus())) {
                    //通过
                    if (!stockAIOrder.getStatus().equals(EStockAIOrderStatus.wait.getStatus())) {
                        return ServerResponse.createByErrorMsg("只能通过待审核订单");
                    }
                } else if (status.equals(EStockAIOrderStatus.notPass.getStatus())) {
                    if (!stockAIOrder.getStatus().equals(EStockAIOrderStatus.wait.getStatus())) {
                        return ServerResponse.createByErrorMsg("只能拒绝待审核订单");
                    }
                    //拒绝TODO 归还买入金额
                    StockAI stockAI = stockAiMapper.selectById(stockAIOrder.getStockAiId());
                    //买入金额
                    BigDecimal buyNum =  stockAIOrder.getBuyAmount();
                    iUserAssetsServices.aiAvailableBalanceChange(stockAI.getStockType(), stockAIOrder.getUserId(), EUserAssets.BUY_AI_REJECT, buyNum);
                } else if (status.equals(EStockAIOrderStatus.finished.getStatus())) {
                    if (!stockAIOrder.getStatus().equals(EStockAIOrderStatus.passed.getStatus())) {
                        return ServerResponse.createByErrorMsg("只能结算申请通过订单");
                    }
                    //结算 TODO结算建仓 计算收益
                    /*//所有建仓

                    List<StockAIOrderPosition> stockAIOrderPositionList = stockAiOrderPositionMapper
                            .selectList(new QueryWrapper<StockAIOrderPosition>()
                                    .eq("stock_ai_order_id", id));
                    //结算金额
                    BigDecimal amount = stockAIOrder.getBuyAmount();
                    if (!stockAIOrderPositionList.isEmpty()) {
                        //总收益
                        BigDecimal earningsSUM = stockAIOrderPositionList.stream()
                                .map(StockAIOrderPosition::getEarnings)  // 获取 BigDecimal 字段
                                .filter(Objects::nonNull)    // 过滤 null 值
                                .reduce(BigDecimal.ZERO, BigDecimal::add); // 累加
                        amount = amount.add(earningsSUM);
                    }*/
                    StockAI stockAI = stockAiMapper.selectById(stockAIOrder.getStockAiId());
                    //结算修改为平仓状态
                    stockAiOrderPositionMapper.updateStatusByOrderId(stockAIOrder.getId(), 1);
                    //归还本金
                    iUserAssetsServices.aiAvailableBalanceChange(stockAI.getStockType(), stockAIOrder.getUserId(), EUserAssets.AI_SETTLEMENT, stockAIOrder.getBuyAmount());
                    //收益
                    iUserAssetsServices.aiAvailableBalanceChange(stockAI.getStockType(), stockAIOrder.getUserId(), EUserAssets.AI_SETTLEMENT_INT, stockAIOrder.getRealEarning());
                }
                stockAIOrder.setStatus(status);
                stockAIOrder.setAuditDate(new Date());
                stockAiOrderMapper.updateById(stockAIOrder);
                return ServerResponse.createBySuccess("操作成功");
            }
        } catch (Exception e) {
            log.error("StockAiService orderOperation error", e);
        }
        return ServerResponse.createByError();
    }

    /**
     * 建仓列表
     * @param pageNum
     * @param pageSize
     * @param stockAiOrderId
     * @return
     */
    @Override
    public ServerResponse getPositionList(Integer pageNum, Integer pageSize, Integer stockAiOrderId) {
        try {
            PageHelper.startPage(pageNum, pageSize);
            List<StockAIOrderPositionVO> positionVOList = stockAiOrderPositionMapper.getPositionListByOrderId(stockAiOrderId);
            PageInfo<StockAIOrderPositionVO> pageInfo = new PageInfo<>(positionVOList);
            return ServerResponse.createBySuccess(pageInfo);
        } catch (Exception e) {
            log.error("StockAiService getPositionList error", e);
        }
        return ServerResponse.createByError();
    }
}