package com.oying.modules.sh.service.impl;

import com.oying.exception.BadRequestException;
import com.oying.modules.hwc.service.SwiftPassService;
import com.oying.modules.sh.domain.Order;
import com.oying.modules.sh.domain.OrderProductSnapshot;
import com.oying.modules.sh.domain.OrderReturn;
import com.oying.modules.sh.domain.OrderReturnProductSnapshot;
import com.oying.modules.sh.domain.request.AuditOrderReturn;
import com.oying.modules.sh.domain.request.ProductOrder;
import com.oying.modules.sh.domain.request.ReturnOrder;
import com.oying.modules.sh.domain.vo.OrderResponse;
import com.oying.modules.sh.domain.vo.OrderReturnResponse;
import com.oying.modules.sh.service.*;
import com.oying.utils.*;
import com.oying.utils.enums.GenerateEnum;
import com.oying.utils.enums.OrderStatusEnum;
import com.oying.utils.enums.PayTypeEnum;
import com.oying.utils.enums.ReturnAuditEnum;
import lombok.RequiredArgsConstructor;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.oying.modules.sh.domain.dto.OrderReturnQueryCriteria;
import com.oying.modules.sh.mapper.OrderReturnMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.sql.Timestamp;
import java.util.*;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;

/**
 * @author lixin
 * @description 服务实现
 * @date 2025-06-11
 **/
@Service
@RequiredArgsConstructor
public class OrderReturnServiceImpl extends ServiceImpl<OrderReturnMapper, OrderReturn> implements OrderReturnService {

    private final OrderReturnMapper orderReturnMapper;
    private final OrderOperationLogService operationLogService;
    private final OrderService orderService;
    private final OrderReturnProductSnapshotService productSnapshotService;
    private final RedisUtils redisUtils;
    private final SwiftPassService swiftPassService;
    private final OrderAddressSnapshotService addressSnapshotService;
    private static final String ORDER_RETURN_KEY = "oying:order:refund";
    private static final String ORDER_CODE = "REFUND";
    public static final Integer DAY = 30;

    @Override
    public PageResult<OrderReturn> queryAll(OrderReturnQueryCriteria criteria, Page<Object> page) {
        criteria.setOffset(page.offset());
        List<OrderReturn> list = orderReturnMapper.findAll(criteria, criteria.getBlurry());
        Long total = orderReturnMapper.countAll(criteria, criteria.getBlurry());
        return PageUtil.toPage(list, total);
    }

    @Override
    public List<OrderReturn> queryAll(OrderReturnQueryCriteria criteria) {
        return orderReturnMapper.findAll(criteria, criteria.getBlurry());
    }

    @Override
    public OrderReturnResponse getByReturnNum(String returnNum) {
        OrderReturn orderReturn = orderReturnMapper.getByReturnNum(returnNum);
        return new OrderReturnResponse(orderReturn,
                addressSnapshotService.queryByOrderNum(orderReturn.getOrderNum()),
                operationLogService.getByOrderNum(orderReturn.getOrderNum(), ORDER_CODE));
    }

    @Override
    public void updatePayStatus(String returnNum, String refundStatus, String successTime) {
        orderReturnMapper.updatePayStatus(returnNum, refundStatus, successTime);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public synchronized void create(ReturnOrder resources) {
        OrderResponse response = orderService.getByOrderNum(resources.getOrderNum());
        Order order = response.getOrder();
        if (order == null) {
            throw new BadRequestException("订单不存在！");
        }
        if (Objects.equals(order.getOrderStatus(), OrderStatusEnum.ZERO.getKey())) {
            throw new BadRequestException("订单未支付");
        }
        OrderReturn returnOrder1 = orderReturnMapper.getByOrderNum(resources.getOrderNum(), ReturnAuditEnum.ZERO.getKey());
        if (returnOrder1 != null) {
            throw new BadRequestException("申请已提交");
        }
        OrderReturn returnOrder2 = orderReturnMapper.getByOrderNum(resources.getOrderNum(), ReturnAuditEnum.TWO.getKey());
        if (returnOrder2 != null) {
            throw new BadRequestException("退款订单已处理");
        }
        if (!DateUtil.isBefore(order.getPayTime(), DAY)) {
            throw new BadRequestException("订单已超过售后有效期");
        }
        // 退款订单
        OrderReturn returnOrder = new OrderReturn();
        // 退款订单号
        String returnNum = redisUtils.generateSn(ORDER_RETURN_KEY, GenerateEnum.ORDER_RETURN.getKey());
        returnOrder.setReturnNum(returnNum);
        returnOrder.setReturnStatus(ReturnAuditEnum.ZERO.getKey());
        returnOrder.setReturnStatusDescribe(ReturnAuditEnum.ZERO.getValue());
        returnOrder.setOrderNum(resources.getOrderNum());
        returnOrder.setOrderTime(order.getOrderTime());
        returnOrder.setOrderStoreNum(order.getOrderStoreNum());
        returnOrder.setPackagingPrice(order.getPackagingPrice());
        returnOrder.setSendPrice(order.getSendPrice());
        returnOrder.setSendType(order.getSendType() != null ? order.getSendType() : null);
        returnOrder.setRiderId(order.getRiderId() != null ? order.getRiderId() : null);
        returnOrder.setRiderPhone(order.getRiderPhone() != null ? order.getRiderPhone() : null);
        returnOrder.setRiderName(order.getRiderName() != null ? order.getRiderName() : null);
        returnOrder.setPayType(order.getPayType());
        returnOrder.setUserId(order.getUserId());
        returnOrder.setUsername(order.getUsername());
        returnOrder.setStoreId(order.getStoreId());
        returnOrder.setStoreName(order.getStoreName());
        returnOrder.setStoreLogo(order.getStoreLogo());
        returnOrder.setOriginalPrice(order.getOriginalPrice());
        returnOrder.setPaidPrice(order.getPaidPrice());
        returnOrder.setActuallyPayPrice(order.getActuallyPayPrice());
        returnOrder.setReason(resources.getReason());
        returnOrder.setRemark(resources.getRemark());
        returnOrder.setPhotos(resources.getPhotos());
        returnOrder.setAuditStatus(ReturnAuditEnum.ZERO.getKey());
        orderReturnMapper.insert(returnOrder);
        List<OrderReturnProductSnapshot> productSnapshots = new ArrayList<>();
        for (ProductOrder productOrder : resources.getProductOrders()) {
            for (OrderProductSnapshot snapshot : order.getProductSnapshots()) {
                if (productOrder.getProductId().equals(snapshot.getProductId())) {
                    OrderReturnProductSnapshot productSnapshot = getSnapshot(snapshot, returnNum);
                    productSnapshots.add(productSnapshot);
                }
            }
        }
        productSnapshotService.saveBatch(productSnapshots);
        operationLogService.create(response, OrderStatusEnum.FIFTEEN, null);
    }

    private static OrderReturnProductSnapshot getSnapshot(OrderProductSnapshot snapshot, String returnNum) {
        OrderReturnProductSnapshot productSnapshot = new OrderReturnProductSnapshot();
        productSnapshot.setReturnNum(returnNum);
        productSnapshot.setStoreId(snapshot.getStoreId());
        productSnapshot.setProductId(snapshot.getProductId());
        productSnapshot.setProductCode(snapshot.getProductCode() != null ? snapshot.getProductCode() : null);
        productSnapshot.setProductBarcode(snapshot.getProductBarcode());
        productSnapshot.setProductName(snapshot.getProductName());
        productSnapshot.setProductTitle(snapshot.getProductTitle());
        productSnapshot.setProductMainImage(snapshot.getProductMainImage());
        productSnapshot.setProductDescription(snapshot.getProductDescription());
        productSnapshot.setParamData(snapshot.getParamData() != null ? snapshot.getParamData() : null);
        productSnapshot.setUnitPrice(snapshot.getUnitPrice());
        productSnapshot.setDetailCount(snapshot.getDetailCount());
        productSnapshot.setOriginalPrice(snapshot.getOriginalPrice());
        productSnapshot.setPaidPrice(snapshot.getPaidPrice());
        productSnapshot.setActuallyPayPrice(snapshot.getActuallyPayPrice());
        return productSnapshot;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void cancel(String returnNum) {
        OrderReturn orderReturn = orderReturnMapper.getByReturnNum(returnNum);
        if (orderReturn == null) {
            throw new BadRequestException("申请不存在！");
        }
        if (!orderReturn.getUserId().equals(SecurityUtils.getCurrentUserId())) {
            throw new BadRequestException("不能修改他人申请");
        }
        if (orderReturn.getAuditStatus().equals(ReturnAuditEnum.ONE.getKey())) {
            throw new BadRequestException("申请已拒绝");
        }
        orderReturnMapper.updateStatus(returnNum, OrderStatusEnum.FIFTEEN.getKey(), OrderStatusEnum.FIFTEEN.getValue(),
                ReturnAuditEnum.THREE.getKey());
        OrderResponse response = orderService.getByOrderNum(orderReturn.getOrderNum());
        operationLogService.create(response, OrderStatusEnum.FIFTEEN, null);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(OrderReturn resources) {
        OrderReturn orderReturn = getById(resources.getReturnId());
        orderReturn.copy(resources);
        orderReturnMapper.updateById(orderReturn);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public synchronized void audit(AuditOrderReturn resources) {
        OrderReturn orderReturn = orderReturnMapper.getByReturnNum(resources.getReturnNum());
        if (orderReturn == null) {
            throw new BadRequestException("申请不存在！");
        }
        if (!Objects.equals(orderReturn.getReturnStatus(), ReturnAuditEnum.ZERO.getKey())) {
            throw new BadRequestException("申请已处理或取消");
        }
        if (resources.getAmount().compareTo(orderReturn.getActuallyPayPrice()) > 0) {
            throw new BadRequestException("退款金额超过订单金额");
        }
        switch (resources.getAuditStatus()) {
            case ONE:
                break;
            case TWO:
                long total = BigDecimalUtils.yuanToCents(orderReturn.getActuallyPayPrice());
                long refund = BigDecimalUtils.yuanToCents(resources.getAmount());
                orderReturn.setRefundPrice(resources.getAmount());
                PayTypeEnum status = PayTypeEnum.find(orderReturn.getPayType());
                switch (status) {
                    case HWC:
                    case HWC2:
                        if (refund > 0) {
                            Map<String, String> re = swiftPassService.refund(orderReturn.getReturnNum(), orderReturn.getOrderNum(),
                                    resources.getMessage(), refund, total, status);
                            orderReturn.setChannel(re.get("refund_channel"));
                        }
                        break;
                    default:
                        throw new BadRequestException("暂未开通其余支付模式");
                }
                break;
            default:
                throw new BadRequestException("审核状态错误");
        }
        // 审核状态
        orderReturn.setAuditStatus(resources.getAuditStatus().getKey());
        // 审核人
        orderReturn.setAuditUser(SecurityUtils.getCurrentUsername());
        // 审核时间
        orderReturn.setAuditTime(new Timestamp(System.currentTimeMillis()));
        // 审核信息
        orderReturn.setAuditMessage(resources.getMessage());
        orderReturnMapper.updateById(orderReturn);
    }

    @Override
    public void download(List<OrderReturn> all, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (OrderReturn orderReturn : all) {
            Map<String, Object> map = new LinkedHashMap<>();
            map.put("退单号", orderReturn.getReturnNum());
            map.put("订单号", orderReturn.getOrderNum());
            map.put("用户", orderReturn.getUserId());
            map.put("门店ID", orderReturn.getStoreId());
            map.put("原金额", orderReturn.getOriginalPrice());
            map.put("折扣价", orderReturn.getPaidPrice());
            map.put("实付金额", orderReturn.getActuallyPayPrice());
            map.put("退款价格", orderReturn.getRefundPrice());
            map.put("退款状态", orderReturn.getRefundStatus());
            map.put("退款成功时间", orderReturn.getSuccessTime());
            map.put("退款渠道", orderReturn.getChannel());
            map.put("退货类型", orderReturn.getReason());
            map.put("备注", orderReturn.getRemark());
            map.put("图片", orderReturn.getPhotos());
            map.put("审核状态", ReturnAuditEnum.getValue(orderReturn.getAuditStatus()));
            map.put("审核人", orderReturn.getAuditUser());
            map.put("审核时间", orderReturn.getAuditTime());
            map.put("审核信息", orderReturn.getAuditMessage());
            map.put("创建人", orderReturn.getCreateBy());
            map.put("创建时间", orderReturn.getCreateTime());
            map.put("修改者", orderReturn.getUpdateBy());
            map.put("修改时间", orderReturn.getUpdateTime());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}