fusenapi/server/product/internal/logic/getfittingbypidlogic.go

package logic

import (
	"encoding/json"
	"errors"
	"fusenapi/constants"
	"fusenapi/model/gmodel"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"gorm.io/gorm"
	"strings"

	"context"

	"fusenapi/server/product/internal/svc"
	"fusenapi/server/product/internal/types"

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

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

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

func (l *GetFittingByPidLogic) GetFittingByPid(req *types.GetFittingByPidReq, userinfo *auth.UserInfo) (resp *basic.Response) {
	req.Pid = strings.Trim(req.Pid, " ")
	if req.Pid == "" {
		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "err param:pid is empty")
	}
	//获取产品信息(只是获取id)
	productInfo, err := l.svcCtx.AllModels.FsProduct.FindOneBySn(l.ctx, req.Pid, "id")
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the product is not exists")
		}
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product info")
	}
	//获取尺寸列表(只获取id)
	sizeList, err := l.svcCtx.AllModels.FsProductSize.GetAllByProductIds(l.ctx, []int64{productInfo.Id}, "", "id")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get size list")
	}
	if len(sizeList) == 0 {
		return resp.SetStatusAddMessage(basic.CodeOK, "success:size list is empty")
	}
	sizeIds := make([]int64, 0, len(sizeList))
	for _, v := range sizeList {
		sizeIds = append(sizeIds, v.Id)
	}
	//获取配件id
	modelList, err := l.svcCtx.AllModels.FsProductModel3d.GetAllBySizeIdsTag(l.ctx, sizeIds, constants.TAG_MODEL, "part_id")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get model list")
	}
	if len(modelList) == 0 {
		return resp.SetStatusAddMessage(basic.CodeOK, "success:model list is empty")
	}
	partIds := make([]int64, 0, len(modelList))
	for _, v := range modelList {
		partIds = append(partIds, *v.PartId)
	}
	//获取配件数据
	fittingList, err := l.svcCtx.AllModels.FsProductModel3d.GetAllByIds(l.ctx, partIds, "is_hot DESC,price ASC")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get part list")
	}
	if len(fittingList) == 0 {
		return resp.SetStatusAddMessage(basic.CodeOK, "success:fitting list is empty")
	}
	//处理组装数据返回
	listRsp := make([]types.GetFittingByPidRsp, 0, len(fittingList))
	for _, fitting := range fittingList {
		materialImg := ""
		var tInfo *gmodel.FsProductTemplateV2
		//贴图,如果绑定了公共模板，则获取公共模板的贴图数据
		if *fitting.OptionTemplate > 0 {
			tInfo, err = l.svcCtx.AllModels.FsProductTemplateV2.FindOne(l.ctx, *fitting.OptionTemplate)
		} else { //否则取该配件下的模板贴图
			tInfo, err = l.svcCtx.AllModels.FsProductTemplateV2.FindOneByModelId(l.ctx, fitting.Id)
		}
		if err == nil {
			materialImg = *tInfo.MaterialImg
		} else {
			logx.Error(err)
		}
		var modelInfo interface{}
		if fitting.ModelInfo != nil && *fitting.ModelInfo != "" {
			if err = json.Unmarshal([]byte(*fitting.ModelInfo), &modelInfo); err != nil {
				logx.Error(err)
				return resp.SetStatusWithMessage(basic.CodeJsonErr, "failed to parse model json info")
			}
		}
		listRsp = append(listRsp, types.GetFittingByPidRsp{
			Id:          fitting.Id,
			MaterialImg: materialImg,
			Title:       *fitting.Title,
			Price:       *fitting.Price,
			ModelInfo:   modelInfo,
			IsPopular:   *fitting.IsHot > 0,
		})
	}
	return resp.SetStatusWithMessage(basic.CodeOK, "success", listRsp)
}