package service

import (
	"errors"
	"hospital-admin-api/api/dao"
	"hospital-admin-api/api/dto"
)

type ProductService struct {
}

// GetProductPlatform 平台商品详情
func (r *ProductService) GetProductPlatform(productPlatformId int64) (g *dto.ProductPlatformDto, err error) {
	// 获取平台商品数据
	productPlatformDao := dao.ProductPlatformDao{}
	productPlatform, err := productPlatformDao.GetProductPlatformById(productPlatformId)
	if err != nil || productPlatform == nil {
		return nil, errors.New(err.Error())
	}

	// 处理返回值
	g = dto.GetProductPlatformDto(productPlatform)

	return g, nil
}

// GetProduct 商品详情
func (r *ProductService) GetProduct(productId int64) (g *dto.ProductDto, err error) {
	// 获取商品数据
	productDao := dao.ProductDao{}
	product, err := productDao.GetProductById(productId)
	if err != nil || product == nil {
		return nil, errors.New(err.Error())
	}

	// 获取商品库存数据
	productPlatformAmountDao := dao.ProductPlatformAmountDao{}
	productPlatformAmount, err := productPlatformAmountDao.GetProductPlatformAmountByProductPlatformId(product.ProductPlatformId)

	// 处理返回值
	g = dto.GetProductDto(product)

	if productPlatformAmount != nil {
		// 加载库存
		g.LoadProductAmount(productPlatformAmount)
	}

	return g, nil
}