package cn.hobbystocks.auc.service.impl;

import cn.hobbystocks.auc.common.exception.ServiceException;
import cn.hobbystocks.auc.common.utils.DateUtils;
import cn.hobbystocks.auc.domain.Auction;
import cn.hobbystocks.auc.domain.Lot;
import cn.hobbystocks.auc.domain.Order;
import cn.hobbystocks.auc.dto.OrderApiResponse;
import cn.hobbystocks.auc.dto.SkuOrderDTO;
import cn.hobbystocks.auc.forest.OrderApi;
import cn.hobbystocks.auc.mapper.OrderMapper;
import cn.hobbystocks.auc.service.IAuctionService;
import cn.hobbystocks.auc.service.ILotService;
import cn.hobbystocks.auc.service.IOrderService;
import cn.hobbystocks.auc.vo.OrderVO;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Date;
import java.util.List;
import java.util.Objects;

@Service
public class OrderServiceImpl extends ServiceImpl<OrderMapper, Order> implements IOrderService {

    @Autowired
    ILotService lotService;
    @Autowired
    IAuctionService auctionService;
    @Resource
    OrderApi orderApi;
    @Value("${hobbystocks.host.orderUrl}")
    private String orderUrl;

    @Override
    @Transactional
    public OrderVO createSkuOrder(Order order) {
        Lot lot = lotService.selectLotById(order.getLotId());
        Auction auction = auctionService.selectAuctionById(lot.getAuctionId());
        BigDecimal serviceTariff = lot.getServiceTariff();
        Integer payTimeLimit = lot.getPayTimeLimit();
        if (serviceTariff == null) {
            serviceTariff = auction.getServiceTariff();
        }
        if (payTimeLimit == null) {
            payTimeLimit = auction.getPayTimeLimit();
        }
        if (Objects.isNull(order.getAmount())) {
            throw new ServiceException("创建订单失败：成交金额为空");
        }

        BigDecimal amount = BigDecimal.valueOf(order.getAmount());
        BigDecimal serviceExpense = serviceTariff.multiply(amount)
                .divide(BigDecimal.valueOf(100), 0, RoundingMode.HALF_UP);
        order.setServiceExpense(serviceExpense);
        Date expireTime = DateUtils.addHours(new Date(), payTimeLimit);
        order.setExpireTime(expireTime);
        save(order);

        OrderApiResponse response = orderApi.createSkuOrder(orderUrl, buildSkuOrderDTO(order, lot, auction));
        OrderVO orderVO = response.toOrderVO();
        order.setOrderId(orderVO.getOrderId());
        order.setOrderNo(orderVO.getOrderNo());
        order.setStatus(orderVO.getStatus());
        updateById(order);
        return orderVO;
    }

    SkuOrderDTO buildSkuOrderDTO(Order order, Lot lot, Auction auction) {
        SkuOrderDTO skuOrderDTO = new SkuOrderDTO();
        skuOrderDTO.setLotId(order.getLotId());
        skuOrderDTO.setSpuId(order.getSkuId());
        skuOrderDTO.setUserId(order.getUserId());
        skuOrderDTO.setAuctionId(lot.getAuctionId());
        skuOrderDTO.setAuctionName(auction.getName());
        skuOrderDTO.setLotName(lot.getName());
        skuOrderDTO.setLotImage(lot.getImgs());
        skuOrderDTO.setMerchantId(Objects.isNull(order.getMerchantId()) ? lot.getMerchantId() : order.getMerchantId());
        skuOrderDTO.setPaymentAmount(order.getAmount());
        skuOrderDTO.setServiceExpense(order.getServiceExpense().longValue());
        skuOrderDTO.setTotalAmount(BigDecimal.valueOf(order.getAmount()).add(order.getServiceExpense()).longValue());
        skuOrderDTO.setExpireTime(order.getExpireTime());
        return skuOrderDTO;
    }

    @Override
    public int modifyOrder(Order order) {
        return getBaseMapper().updateOrderStatus(order);
    }

    @Override
    public List<Order> getOrderListByUserAndAuction(Long auctionId, Integer userId) {
        return getBaseMapper().selectOrderByAuctionId(auctionId, userId);
    }
}