fusenapi/product/internal/logic/getproductlistlogic.go

package logic

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"fusenapi/constants"
	"fusenapi/model"
	"fusenapi/product/internal/svc"
	"fusenapi/product/internal/types"
	"fusenapi/utils/auth"
	"fusenapi/utils/format"
	"fusenapi/utils/image"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
	"sort"
	"strconv"
	"strings"
	"time"

	"github.com/zeromicro/go-zero/core/logx"
)

type GetProductListLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewGetProductListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetProductListLogic {
	return &GetProductListLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

// 获取产品列表
func (l *GetProductListLogic) GetProductList(req *types.GetProductListReq, loginInfo auth.UserInfo) (resp *types.Response, err error) {
	loginInfo.UserId = 84
	//校验前台登录情况
	if loginInfo.UserId == 0 {
		return &types.Response{Code: 402, Message: "please sign in"}, nil
	}
	//如果是demo
	if req.IsDemo == 1 {
		var demo types.GetProductListRsp
		if err = json.Unmarshal([]byte(l.DemoProductList()), &demo); err != nil {
			logx.Error(err)
			return &types.Response{Code: 510, Message: "demo data format err"}, nil
		}
		return &types.Response{Code: 200, Message: "success", Data: demo}, nil
	}
	if req.Page <= 0 {
		req.Page = 1
	}
	//获取合适尺寸
	if req.Size > 0 {
		req.Size = image.GetCurrentSize(req.Size)
	}
	//查询用户信息
	userModel := model.NewFsUserModel(l.svcCtx.MysqlConn)
	userInfo, err := userModel.FindOne(l.ctx, loginInfo.UserId)
	if err != nil && !errors.Is(err, sqlx.ErrNotFound) {
		logx.Error(err)
		return &types.Response{Code: 510, Message: "get user info err"}, nil
	}
	if userInfo == nil {
		return &types.Response{Code: 402, Message: "user not exists"}, nil
	}
	//查询符合的产品列表
	productModel := model.NewFsProductModel(l.svcCtx.MysqlConn)
	productList, err := productModel.GetProductListByConditions(l.ctx, int(req.Cid), 0, 1, "sort-desc")
	if err != nil {
		logx.Error(err)
		return &types.Response{Code: 510, Message: "failed to get product list"}, nil
	}
	fmt.Println(len(productList))
	productLen := len(productList)
	if productLen == 0 {
		return &types.Response{Code: 200, Message: "success"}, nil
	}
	//提取产品ids
	productIds := make([]string, 0, productLen)
	for _, v := range productList {
		productIds = append(productIds, fmt.Sprintf("%d", v.Id))
	}
	productPriceModel := model.NewFsProductPriceModel(l.svcCtx.MysqlConn)
	productPriceList, err := productPriceModel.GetPriceList(l.ctx, productIds)
	if err != nil {
		logx.Error(err)
		return &types.Response{Code: 510, Message: "failed to get product min price list"}, nil
	}
	//存储产品最小价格
	mapProductMinPrice := make(map[int64]int64)
	for _, v := range productPriceList {
		priceSlic := strings.Split(v.Price, ",")
		sort.Strings(priceSlic)
		min, err := strconv.ParseInt(priceSlic[0], 10, 64)
		if err != nil {
			logx.Error(err)
			return &types.Response{Code: 510, Message: "parse min product price err"}, nil
		}
		mapProductMinPrice[v.ProductId] = min
	}
	//获取模板
	productTemplateModel := model.NewFsProductTemplateV2Model(l.svcCtx.MysqlConn)
	productTemplatesV2, err := productTemplateModel.FindAllByCondition(l.ctx, productIds, 0, 1)
	if err != nil {
		logx.Error(err)
		return &types.Response{Code: 510, Message: "get product template_v2 err"}, nil
	}
	mapProductTemplate := make(map[int64]struct{})
	for _, v := range productTemplatesV2 {
		mapProductTemplate[v.ProductId] = struct{}{}
	}
	//获取分类
	tagsModel := model.NewFsTagsModel(l.svcCtx.MysqlConn)
	tagInfo, err := tagsModel.FindOne(l.ctx, req.Cid)
	if err != nil && !errors.Is(err, sqlx.ErrNotFound) {
		logx.Error(err)
		return &types.Response{Code: 510, Message: "get classification err "}, nil
	}
	if tagInfo == nil {
		return &types.Response{Code: 510, Message: "classification not exists "}, nil
	}
	//拼接返回
	itemList := make([]types.Items, 0, productLen)
	for _, v := range productList {
		minPrice, ok := mapProductMinPrice[v.Id]
		//无最小价格则不显示
		if !ok {
			continue
		}
		_, ok = mapProductTemplate[v.Id]
		//没有模板也不显示
		if !ok {
			continue
		}
		item := types.Items{
			Id:        v.Id,
			Sn:        v.Sn,
			Title:     v.Title,
			Cover:     v.Cover,
			Intro:     v.Intro.String,
			CoverImg:  v.CoverImg,
			IsEnv:     1,
			IsMicro:   1,
			SizeNum:   1,
			MiniPrice: format.FentoDollar(minPrice),
		}
		if req.Size > 0 {
			coverSlice := strings.Split(v.Cover, ".")
			coverImgSlice := strings.Split(v.CoverImg, ".")
			if req.Size >= 200 {
				item.Cover = fmt.Sprintf("%s_%d.%s", coverSlice[0], req.Size, coverSlice[1])
				item.CoverImg = fmt.Sprintf("%s_%d.%s", coverImgSlice[0], req.Size, coverImgSlice[1])
			}
			//千人千面处理
			if userInfo.IsThousandFace == 1 {
				v.Cover = ""
				item.CoverDefault = item.CoverImg
				if req.Size >= 200 {
					item.CoverImg = fmt.Sprintf("%s/test/%d/%d_%d.png?%d", constants.DOMAIN_RENDER_IMG_NAME, userInfo.Id, userInfo.Id, v.Id, time.Now().Unix())
					item.CoverDefault = fmt.Sprintf("%s_%d.%s", coverImgSlice[0], req.Size, coverImgSlice[1])
				}
			}
		}
		itemList = append(itemList, item)
	}
	return &types.Response{
		Code:    200,
		Message: "success",
		Data: types.GetProductListRsp{
			Ob: types.Ob{
				Items: itemList,
			},
			TypeName:    tagInfo.Title,
			Description: tagInfo.Description,
		}}, nil
	return
}

// 样本产品列表
func (l *GetProductListLogic) DemoProductList() string {
	return `{
        "ob": {
            "items": [
                {
                    "id": 25,
                    "sn": "P1ELZGHU",
                    "title": "Packing box",
                    "cover": "/icon/icon_25_800.png",
                    "intro": "打包盒卡纸",
                    "cover_img": "/uploads/ognhdc6q_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 5,
                    "miniPrice": 2
                },
                {
                    "id": 28,
                    "sn": "P9KVYAUS",
                    "title": "Pizza box",
                    "cover": "/icon/9dmom0g7_800.png",
                    "intro": "披萨盒 瓦楞纸",
                    "cover_img": "/uploads/9xf1olkl_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 1,
                    "miniPrice": 2
                },
                {
                    "id": 30,
                    "sn": "PZWDSROX",
                    "title": "Paper bag with handle",
                    "cover": "/icon/iz44vraw_800.png",
                    "intro": "有提手纸袋牛皮纸",
                    "cover_img": "/uploads/rpwntxcq_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 4,
                    "miniPrice": 2
                },
                {
                    "id": 20,
                    "sn": "PNACHNUK",
                    "title": "Four cups of milk tea cup",
                    "cover": "/icon/plz43wpo_800.png",
                    "intro": "卡纸",
                    "cover_img": "/uploads/9tqgsjqi_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 2,
                    "miniPrice": 2
                },
                {
                    "id": 19,
                    "sn": "PHHVEXRW",
                    "title": "Milk tea cup holder double cup",
                    "cover": "/icon/ipohmmcj_800.png",
                    "intro": "奶茶杯托奶茶杯托两杯袋",
                    "cover_img": "/uploads/57ogzeq5_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 5,
                    "miniPrice": 2
                },
                {
                    "id": 11,
                    "sn": "P7N4D0MK",
                    "title": "Cup double layer",
                    "cover": "/icon/nrmzz4du_800.png",
                    "intro": "牛皮纸双层",
                    "cover_img": "/uploads/oqjm5own_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 5,
                    "miniPrice": 2
                },
                {
                    "id": 33,
                    "sn": "P0NFP19Y",
                    "title": "High paper bowl",
                    "cover": "/icon/cla4k6om_800.png",
                    "intro": "牛皮纸",
                    "cover_img": "/uploads/dt1qjkzg_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 4,
                    "miniPrice": 2
                },
                {
                    "id": 32,
                    "sn": "PDZ3HIUL",
                    "title": "Flat paper bowl",
                    "cover": "/icon/jy14adqz_800.png",
                    "intro": "牛皮纸",
                    "cover_img": "/uploads/bzwbxduc_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 3,
                    "miniPrice": 2
                },
                {
                    "id": 31,
                    "sn": "PEVSMU7I",
                    "title": "Paper bag without handle",
                    "cover": "/icon/osdsegor_800.png",
                    "intro": "牛皮纸",
                    "cover_img": "/uploads/ouvayny7_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 2,
                    "miniPrice": 2
                },
                {
                    "id": 29,
                    "sn": "P58ZZOTI",
                    "title": "plastic bag",
                    "cover": "/icon/dvsvddks_800.png",
                    "intro": "塑料袋",
                    "cover_img": "/uploads/qvvuzkzx_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 1,
                    "miniPrice": 2
                },
                {
                    "id": 24,
                    "sn": "PG7XIXII",
                    "title": "Hamburger box",
                    "cover": "/icon/icon_24_800.png",
                    "intro": "汉堡盒 卡纸",
                    "cover_img": "/uploads/fm1itgge_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 4,
                    "miniPrice": 2
                },
                {
                    "id": 23,
                    "sn": "PIJ2OVUE",
                    "title": "Milk tea ring portable double cup",
                    "cover": "/icon/nxb6hjln_800.png",
                    "intro": "卡纸",
                    "cover_img": "/uploads/52fash1n_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 4,
                    "miniPrice": 2
                },
                {
                    "id": 21,
                    "sn": "PMHXGUL6",
                    "title": "Milk tea ring portable single cup",
                    "cover": "/icon/qoaf5mtp_800.png",
                    "intro": "卡纸",
                    "cover_img": "/uploads/epvkzvyf_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 5,
                    "miniPrice": 2
                },
                {
                    "id": 18,
                    "sn": "PFCM8KNF",
                    "title": "Tableware set chopsticks",
                    "cover": "/icon/tcspod4b_800.png",
                    "intro": "餐具套装筷子厚牛皮纸包装",
                    "cover_img": "/uploads/5jgrgzvh_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 3,
                    "miniPrice": 2
                },
                {
                    "id": 17,
                    "sn": "PQKIQMIK",
                    "title": "Tableware set four piece set",
                    "cover": "/icon/mdo0vu1u_800.png",
                    "intro": "牛皮纸包装",
                    "cover_img": "/uploads/szsekvbw_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 4,
                    "miniPrice": 2
                },
                {
                    "id": 16,
                    "sn": "PBFOIOFH",
                    "title": "Tableware set four piece set",
                    "cover": "/icon/dzrf59cp_800.png",
                    "intro": "餐具套装",
                    "cover_img": "/uploads/svfoebf1_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 1,
                    "miniPrice": 2
                },
                {
                    "id": 15,
                    "sn": "P02V10AB",
                    "title": "  Hot drink cup holder",
                    "cover": "/icon/icon_15_800.png",
                    "intro": "杯托、瓦楞纸",
                    "cover_img": "/uploads/4qbdid7i_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 5,
                    "miniPrice": 2
                },
                {
                    "id": 13,
                    "sn": "PER6WLAV",
                    "title": "  Cup pet",
                    "cover": "/icon/icon_13_800.png",
                    "intro": "pet",
                    "cover_img": "/uploads/kfxehwjd_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 1,
                    "miniPrice": 2
                },
                {
                    "id": 12,
                    "sn": "PGFWRMAU",
                    "title": "  Cup PP",
                    "cover": "/icon/icon_12_800.png",
                    "intro": "pp",
                    "cover_img": "/uploads/azp8uwhz_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 2,
                    "miniPrice": 2
                },
                {
                    "id": 10,
                    "sn": "P4ZXDVHS",
                    "title": "Cup monolayer",
                    "cover": "/icon/icon_10_800.png",
                    "intro": "牛皮纸单层",
                    "cover_img": "/uploads/onuzax6l_800.png",
                    "isEnv": 1,
                    "isMicro": 1,
                    "sizeNum": 1,
                    "miniPrice": 2
                }
            ],
            "_links": {
                "self": {
                    "href": "https://fusenapi.kayue.cn:8010/product/list?cid=13&size=620&page=1&is_demo=1"
                },
                "first": {
                    "href": "https://fusenapi.kayue.cn:8010/product/list?cid=13&size=620&page=1&is_demo=1"
                },
                "last": {
                    "href": "https://fusenapi.kayue.cn:8010/product/list?cid=13&size=620&page=2&is_demo=1"
                },
                "next": {
                    "href": "https://fusenapi.kayue.cn:8010/product/list?cid=13&size=620&page=2&is_demo=1"
                }
            },
            "_meta": {
                "totalCount": 21,
                "pageCount": 2,
                "currentPage": 1,
                "perPage": 20
            }
        },
        "typeName": "Boxes",
        "description": ""
    }`
}