package cn.waqwb.seckilldemo.Service.impl;

import cn.waqwb.seckilldemo.Service.ItemService;
import cn.waqwb.seckilldemo.Service.model.ItemModel;
import cn.waqwb.seckilldemo.error.BusinessException;
import cn.waqwb.seckilldemo.error.EmBusinessError;
import cn.waqwb.seckilldemo.mapper.ItemDOMapper;
import cn.waqwb.seckilldemo.mapper.ItemStockDOMapper;
import cn.waqwb.seckilldemo.po.ItemDO;
import cn.waqwb.seckilldemo.po.ItemStockDO;
import cn.waqwb.seckilldemo.validator.ValidationResult;
import cn.waqwb.seckilldemo.validator.ValidatorImpl;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.util.List;

/**
 * @author JokerQ
 * @date 2019/10/25 - 10:17
 */
@Service
public class ItemServiceImpl implements ItemService {
    @Autowired
    private ValidatorImpl validator;

    @Autowired
    private ItemDOMapper itemDOMapper;

    @Autowired
    private ItemStockDOMapper itemStockDOMapper;

    private ItemStockDO convertFromItemModel(ItemModel itemModel){
        if (itemModel == null){
            return null;
        }
        ItemStockDO itemStockDO = new ItemStockDO();
        itemStockDO.setItenId(itemModel.getId());
        itemStockDO.setStock(itemModel.getStock());
        return itemStockDO;
    }

    private ItemDO itemDOConvertFromItemModel(ItemModel itemModel){
        if (itemModel == null){
            return null;
        }
        ItemDO itemDO = new ItemDO();
        BeanUtils.copyProperties(itemModel,itemDO);
        itemDO.setPrice(itemModel.getPrice().doubleValue());
        return itemDO;
    }

    @Override
    @Transactional
    public ItemModel createItem(ItemModel itemModel) throws BusinessException {
        ValidationResult result = validator.validate(itemModel);
        if (result.isHasErrors()) {
            throw new BusinessException(result.getErrMsg(), EmBusinessError.PARAMETER_VALIDATION_ERROR);
        }
        ItemDO itemDO = this.itemDOConvertFromItemModel(itemModel);
        itemDOMapper.insertSelective(itemDO);
        itemModel.setId(itemDO.getId());
        ItemStockDO itemStockDO = this.convertFromItemModel(itemModel);
        itemStockDOMapper.insertSelective(itemStockDO);
        return this.getItemById(itemModel.getId());
    }

    @Override
    public List<ItemModel> listItem() {
        return null;
    }

    @Override
    public ItemModel getItemById(Integer id) {
        ItemDO itemDO = itemDOMapper.selectByPrimaryKey(id);
        //TODO
        if (itemDO == null){
            return null;
        }
        ItemStockDO itemStockDO = itemStockDOMapper.selectByItemId(itemDO.getId());
        ItemModel itemModel = convertModelFromDataObject(itemDO,itemStockDO);
        return itemModel;
    }
    private ItemModel convertModelFromDataObject(ItemDO itemDO,ItemStockDO itemStockDO){
        ItemModel itemModel = new ItemModel();
        BeanUtils.copyProperties(itemDO,itemModel);
        itemModel.setPrice(new BigDecimal((itemDO.getPrice())));
        itemModel.setStock(itemStockDO.getStock());
        return itemModel;
    }
}

package cn.waqwb.seckilldemo.controller;

import cn.waqwb.seckilldemo.Service.ItemService;
import cn.waqwb.seckilldemo.Service.model.ItemModel;
import cn.waqwb.seckilldemo.controller.viewobject.ItemView;
import cn.waqwb.seckilldemo.error.BusinessException;
import cn.waqwb.seckilldemo.response.CommonReturnType;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.math.BigDecimal;

/**
 * @author JokerQ
 * @date 2019/10/26 - 16:32
 */
@Controller("/item")
@RequestMapping("/item")
@CrossOrigin(allowCredentials = "true",origins = {"*"})
public class ItemController extends BaseController{

    @Autowired
    private ItemService itemService;
    @RequestMapping(value = "/create",method = {RequestMethod.POST},consumes = {CONTENT_TYPE_FORMED})
    @ResponseBody
    public CommonReturnType createItem(
            @RequestParam(name = "title")String title,
            @RequestParam(name = "description")String description,
            @RequestParam(name = "price") BigDecimal price,
            @RequestParam(name = "imgUrl")String imgUrl,
            @RequestParam(name = "stock")Integer stock

    ) throws BusinessException {
        ItemModel itemModel = new ItemModel();
        itemModel.setTitle(title);
        itemModel.setDescription(description);
        itemModel.setPrice(price);
        itemModel.setStock(stock);
        itemModel.setImgUrl(imgUrl);
        ItemModel itemModelForReturn = itemService.createItem(itemModel);
        ItemView itemView = convertVOFromModel(itemModelForReturn);
        return CommonReturnType.create(itemView);

    }
    private ItemView convertVOFromModel(ItemModel itemModel){
        if (itemModel == null){
            return null;
        }
        ItemView itemView = new ItemView();
        BeanUtils.copyProperties(itemModel,itemView);
        return itemView;
    }

}