package com.cyksj.web.controller.goods;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUnit;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.RandomUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.cyksj.common.constant.Constant;
import com.cyksj.dto.Result;
import com.cyksj.enums.GatewayResponse;
import com.cyksj.mapper.GoodsDonSkuMapper;
import com.cyksj.mapper.OrderDonMapper;
import com.cyksj.model.entity.*;
import com.cyksj.model.views.GoodsDonPopularizeView;
import com.cyksj.model.views.GoodsDonSkuView;
import com.cyksj.model.views.GoodsDonViews;
import com.ejlchina.searcher.BeanSearcher;
import com.ejlchina.searcher.SearchResult;
import com.ejlchina.searcher.param.Operator;
import com.ejlchina.searcher.util.MapBuilder;
import com.ejlchina.searcher.util.MapUtils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;

/**
 * @author chan
 * @date 2022/9/26 5:33 PM
 */
@Slf4j
@RestController
@RequestMapping("/applets/goods")
@RequiredArgsConstructor
public class GoodsDonController {

    private final HttpServletRequest request;
    
    private final BeanSearcher beanSearcher;

    private final OrderDonMapper orderDonMapper;

    private final GoodsDonSkuMapper goodsDonSkuMapper;

    /**
     * 获取商品列表
     */
    @GetMapping("/get")
    public Result<SearchResult<GoodsDon>> get() {
        SearchResult<GoodsDon> search = beanSearcher.search(GoodsDon.class, MapUtils.flatBuilder(request.getParameterMap())
                .field(GoodsDon::getStatus, true)
                .field(GoodsDon::getDeleted, true)
                .orderBy(GoodsDon::getSortBy).desc()
                .orderBy(GoodsDon::getId).asc()
                .build()
        );
        Integer virtual = 2000;
        search.getDataList().forEach(goods->{
            GoodsDonSku goodsDonSku = goodsDonSkuMapper.selectOne(Wrappers.lambdaQuery(GoodsDonSku.class).eq(GoodsDonSku::getGoodsId, goods.getId())
                    .eq(GoodsDonSku::getStatus, true)
                    .orderByAsc(GoodsDonSku::getPrice)
                    .last("limit 1")
                    .select(GoodsDonSku::getPrice));
            goods.setPrice(goodsDonSku.getPrice());
            if (goods.getType() != 3) {
                goods.setSoldNum(virtual + orderDonMapper.selectCount(Wrappers.lambdaQuery(OrderDon.class)
                        .eq(OrderDon::getGoodsId, goods.getId())
                        .notIn(OrderDon::getStatus, Constant.noOrderStatus)));
            }
        });
        return GatewayResponse.SUCCESS.newBuilder().toResult(search);
    }

    /**
     * 推广未登录,虚拟商品列表
     */
    @GetMapping("/get/popularize")
    public Result<SearchResult<GoodsDonPopularizeView>> getPopularizeVipGoods() {
        SearchResult<GoodsDonPopularizeView> search = beanSearcher.search(GoodsDonPopularizeView.class, MapUtils.flatBuilder(request.getParameterMap())
                .field(GoodsDonPopularizeView::getStatus, true)
                .field(GoodsDonPopularizeView::getDeleted, true)
                .field(GoodsDonPopularizeView::getType, 1)
                .orderBy(GoodsDonPopularizeView::getSortBy).desc()
                .orderBy(GoodsDonPopularizeView::getId).asc()
                .build());
        DateTime now = DateTime.now();
        Integer randomNum = 2000;
        search.getDataList().forEach(data -> {
            GoodsDonSku goodsDonSku = goodsDonSkuMapper.selectOne(Wrappers.lambdaQuery(GoodsDonSku.class)
                    .eq(GoodsDonSku::getGoodsId, data.getId())
                    .eq(GoodsDonSku::getStatus, true)
                    .orderByAsc(GoodsDonSku::getPrice)
                    .last("limit 1"));
            Optional.ofNullable(goodsDonSku).ifPresent(sku -> {
                data.setPrice(sku.getPrice());
                data.setMonths(sku.getMonths());
            });
            data.setSpecs(beanSearcher.searchFirst(GoodsDonSpec.class, MapUtils.builder().field(GoodsDonSpec::getGoodsId, data.getId()).build()));
            data.setSkuList(beanSearcher.searchAll(GoodsDonSku.class, MapUtils.builder().field(GoodsDonSku::getGoodsId, data.getId()).field(GoodsDonSku::getStatus, true).build()));
            if (data.getId() != 17 && data.getId() != 23) {
                data.setSold(data.getSold() + randomNum);
            }
            SearchResult<OrderComment> orderComments = beanSearcher.search(OrderComment.class,
                    MapUtils.builder().field(OrderComment::getGoodsId, data.getId())
                            .orderBy(OrderComment::getId).desc()
                            .build());
            if (orderComments != null) {
                List<OrderComment> comments = orderComments.getDataList();
                data.setOrderComments(comments);
            }
            OrderDon orderDon = orderDonMapper.selectOne(Wrappers.lambdaQuery(OrderDon.class)
                    .eq(OrderDon::getGoodsId, data.getId())
                    .notIn(OrderDon::getStatus, Constant.noOrderStatus).select(OrderDon::getCreatedTime, OrderDon::getPayTime, OrderDon::getId)
                    .orderByDesc(OrderDon::getId)
                    .last("limit 1"));
            StringBuilder notifyMsg = new StringBuilder();
            if (orderDon == null) {
                notifyMsg.append("2分钟");
            } else {
                Date payTime = orderDon.getPayTime();
                Date startTime = payTime != null ? payTime : orderDon.getCreatedTime();
                long hour = DateUtil.between(startTime, now, DateUnit.HOUR);
                if (hour == 0) {
                    long minute = DateUtil.between(startTime, now, DateUnit.MINUTE);
                    if (minute == 0) {
                        notifyMsg.append("1分钟");
                    } else {
                        notifyMsg.append(minute);
                        notifyMsg.append("分钟");
                    }
                } else {
                    if (hour > 3) {
                        int hours = RandomUtil.randomInt(3) + 1;
                        notifyMsg.append(hours);
                    } else {
                        notifyMsg.append(hour);
                    }
                    notifyMsg.append("小时");
                }
            }
            notifyMsg.append("前有人购买");
            data.setNotifyMsg(notifyMsg.toString());
        });
        List<GoodsDonPopularizeView> collect = search.getDataList().stream().filter(data -> data.getPrice().compareTo(BigDecimal.ZERO) > 0).collect(Collectors.toList());
        search = new SearchResult<>(collect);
        search.setTotalCount(collect.size());
        return GatewayResponse.SUCCESS.newBuilder().toResult(search);
    }


    /**
     * 获取商品详情
     */
    @GetMapping("/get/{id}")
    public Result<GoodsDonViews> getDetail(@PathVariable Long id) {
        GoodsDonViews views = beanSearcher.searchFirst(GoodsDonViews.class, MapUtils.builder().field(GoodsDonViews::getId, id).build());

        views.setSpecs(beanSearcher.searchFirst(GoodsDonSpec.class, MapUtils.builder().field(GoodsDonSpec::getGoodsId, views.getId()).build()));
        MapBuilder builder = MapUtils.builder().field(GoodsDonSku::getGoodsId, views.getId()).field(GoodsDonSku::getStatus, true);

        GoodsDonSkuView goodsDonSkuView = beanSearcher.searchFirst(GoodsDonSkuView.class, MapUtils.builder().field(GoodsDonSkuView::getGoodsId, id).build());
        if (goodsDonSkuView != null && goodsDonSkuView.getType() == 1) {
            builder.orderBy(GoodsDonSku::getOrderBy).asc();
        }
        views.setSkuList(beanSearcher.searchAll(GoodsDonSku.class, builder.build()));
        return GatewayResponse.SUCCESS.newBuilder().toResult(views);
    }

    /**
     * 获取商品多规格列表
     */
    @GetMapping("/get/sku")
    public Result<List<GoodsDonSkuView>> getGoodsDonSkuView(@RequestParam(value = "skuIds") List<Long> skuIds) {
        if (skuIds.isEmpty()) {
            return GatewayResponse.SUCCESS.newBuilder().toResult();
        }
        List<GoodsDonSkuView> views = beanSearcher.searchAll(GoodsDonSkuView.class, MapUtils.builder()
                .field(GoodsDonSkuView::getSkuId, skuIds).op(Operator.InList)
                .build());
        return GatewayResponse.SUCCESS.newBuilder().toResult(views);
    }
}