eta_mini_ht_api/service/product/product_service.go

package product

import (
	"eta/eta_mini_ht_api/common/exception"
	merchantService "eta/eta_mini_ht_api/domian/merchant"
	"github.com/shopspring/decimal"
	"time"
)

type ProductDTO struct {
	Title       string
	Description string
	Price       decimal.Decimal
	CoverSrc    string
	RiskLevel   string
	Type        string
	BeginDate   string
	EndDate     string
}

func GetProductInfoById(productId int) (product ProductDTO, err error) {
	merchantProduct, err := merchantService.GetMerchantProductById(productId)
	if err != nil {
		err = exception.NewWithException(exception.ProductInfoError, err.Error())
		return
	}
	product = convertToProductDTO(merchantProduct)
	return
}
func convertToProductDTO(product merchantService.MerchantProductDTO) (productDTO ProductDTO) {
	beginDate := time.Now()
	endDate := beginDate.Add(time.Duration(product.ValidDays) * 24 * time.Hour)
	productDTO = ProductDTO{
		Title:       product.Title,
		Description: product.Description,
		Price:       product.Price,
		RiskLevel:   product.RiskLevel,
		CoverSrc:    product.CoverSrc,
		Type:        product.Type,
		BeginDate:   beginDate.Format(time.DateOnly),
		EndDate:     endDate.Format(time.DateOnly),
	}
	return
}