package com.bdqn.action;

import com.bdqn.entity.easybuy_product_category;
import com.bdqn.mvc.DispatcherServlet;
import java.io.IOException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.bdqn.service.CategoryDaoService;
import com.bdqn.service.CategoryDaoServiceImpl;
import com.bdqn.service.CommonService;
import com.bdqn.service.CommonServiceImpl;
import com.bdqn.util.ActionForward;
import com.bdqn.util.JsAlertUtil;
/**
 * 
 * @author T11 小熊
 *
 */
public class CrudCategoryAction extends DispatcherServlet {
	private CommonService services = new CommonServiceImpl();
	private CategoryDaoService dao = new CategoryDaoServiceImpl();
	public ActionForward queryCategory(Object entity,HttpServletRequest req, HttpServletResponse res)
	throws ServletException, IOException{
		//http://localhost:8080/EasyBuy/categorycrud.do?method=queryCategory
		System.out.println("进入到CrudCategoryAction--queryCategory了");
		//根据实体类获取类对象,返回类名调用查询所有方法将结果存入‘cateory’泛型为 ’easybuy_product_category‘
		//查询分类名称
		List<easybuy_product_category> cateory = services.queryAll(entity.getClass());
		//获取大类总数
		int maxCount = dao.queryMax();
		//获取session设置大类总数’maxCount‘
		req.getSession().setAttribute("maxCount",maxCount);
		System.out.println("CrudCategoryAction--queryCategory--maxCount:"+maxCount);
		//绑定数据cateory
		req.setAttribute("cateory",cateory);
		System.out.println("CrudCategoryAction--queryCategory--cateory:"+cateory);
		//转发到productClass.jsp
		return new ActionForward("/manage/productClass.jsp",false);
	}
	public ActionForward addCategory(Object entity,HttpServletRequest req, HttpServletResponse res)
	throws ServletException, IOException{
		System.out.println("进入到CrudCategoryAction--addCategory了");
		//通过product-add.jsp表单数据获取增加的分类信息，执行保存操作
		int result = services.save(entity);
		//>0成功
		if(result > 0){
			//重定向到查询用户方法categorycrud.do?method=queryCategory
			return new ActionForward("categorycrud.do?method=queryCategory",false);
		}else{
			//js跳转到categorycrud.do?method=queryCategory并弹出提示框
			return new JsAlertUtil().jsAlert(res,"Categorycrud.do?method=queryCategory","增加失败！");
		}
	}
	public ActionForward queryParentCategory(Object entity,HttpServletRequest req, HttpServletResponse res)
	throws ServletException, IOException{
		System.out.println("进入到CrudCategoryAction--queryParentCategory了");
		//增加分类时查询出所有的大类
		//查询所有大类，将查询到的数据赋值给'parent'泛型为easybuy_product_category
		List<easybuy_product_category> parent = dao.queryParent();
		//绑定数据为parent
		req.setAttribute("parent",parent);
		//转发到productClass-add.jsp
		return new ActionForward("/manage/productClass-add.jsp");
	}
	public ActionForward updateCategory(Object entity,HttpServletRequest req, HttpServletResponse res)
	throws ServletException, IOException{
		System.out.println("进入到CrudCategoryAction--updateCategory了");
		//获取分类id ’epc_id‘
		String epc_id = req.getParameter("epc_id");
		//获取分类名称 ’epc_name‘
		String epc_name = req.getParameter("epc_name");
		//获取大类id ’epc_parent_id‘
		String epc_parent_id = req.getParameter("epc_parent_id");
		//实例化分类表 ’easybuy_product_category‘
		easybuy_product_category c = new easybuy_product_category();
		//封装字段分类id为 获取的 ’epc_id‘，转为int
		c.setEpc_id(Integer.parseInt(epc_id));
		//封装字段分类名称为 获取的 ’epc_name‘
		c.setEpc_name(epc_name);
		//封装字段大类id为 获取的 ’epc_parent_id‘，转为int
		c.setEpc_parent_id(Integer.parseInt(epc_parent_id));
		//根据分类信息执行修改操作
		int result = dao.update(c);
		//>0成功
		if(result > 0){
			//重定向到查询用户方法categorycrud.do?method=queryCategory
			return new ActionForward("categorycrud.do?method=queryCategory",true);
		}else{
			//js跳转到categorycrud.do?method=queryCategory并弹出提示框
			return new JsAlertUtil().jsAlert(res,"categorycrud.do?method=queryCategory","修改失败！");
		}
	}
	public ActionForward queryByIdCategory(Object entity,HttpServletRequest req, HttpServletResponse res)
	throws ServletException, IOException{
		System.out.println("进入到CrudCategoryAction--queryByIdCategory了");
		System.out.println("CrudCategoryAction--queryByIdCategory--entity--01-- Parent ? CategoryId:"+entity);
		//获取分类id ’epc_id‘
		String epc_id = req.getParameter("epc_id");
		System.out.println("CrudCategoryAction--queryByIdCategory--epc_id:"+epc_id);
		//根据分类id查询分类详细信息
		Object CategoryId = dao.queryById(epc_id);
		System.out.println("CrudCategoryAction--queryByIdCategory--CategoryId:"+CategoryId);
		//查询所有大类信息
		List<easybuy_product_category> parent = dao.queryParent();
		System.out.println("CrudCategoryAction--queryByIdCategory--parent:"+parent);
		//绑定数据分类详细信息 ’Category‘
		req.setAttribute("Category",CategoryId);
		//绑定数据所有大类信息 ’parent‘
		req.setAttribute("parent",parent);
		System.out.println("离开了CrudCategoryAction--queryByIdCategory");
		return new ActionForward("/manage/productClass-modify.jsp");
	}
	public ActionForward deleteCategory(Object entity,HttpServletRequest req, HttpServletResponse res)
	throws ServletException, IOException{
		System.out.println("进入到CrudCategoryAction--deleteCategory了");
		//获取分类id ’epc_id‘
		String epc_id = req.getParameter("epc_id");
		System.out.println("CrudCategoryAction--queryByIdCategory--epc_id:"+epc_id);
		//获取大类id ’epc_parent_id‘
		String epc_parent_id = req.getParameter("epc_parent_id");
		System.out.println("CrudCategoryAction--queryByIdCategory--epc_parent_id:"+epc_parent_id);
		//如果epc_parent_id 等于0 表示为大类
		if(epc_parent_id.equals("0")){
			//查询当前大类下面有没有小类，有赋值为true,没有赋值为false
			boolean flag = dao.queryParentChild(epc_id);
			//当前大类下面有小类 true
			if(flag){
				//js跳转到categorycrud.do?method=queryCategory方法并且弹出提示框
				new JsAlertUtil().jsAlert(res,"categorycrud.do?method=queryCategory","当前大类下面有小类,不能删除!!");
				//当前大类下没有小类false
			}else{
				//根据分类id删除分类信息
				int result = dao.deleteCategory(epc_id);
				//>0删除成功
				if(result > 0){
					//重定向到categorycrud.do?method=queryCategory方法
					return new ActionForward("categorycrud.do?method=queryCategory",true);
				}else{
					//js跳转到categorycrud.do?method=queryCategory方法并且弹出提示框
					return new JsAlertUtil().jsAlert(res,"categorycrud.do?method=queryCategory","删除失败！");
				}
			}
			//否则 epc_parent_id不等于0 表示为小类
		}else{
			//查询当前小类下面有没有商品，有赋值为true,没有赋值为false
			boolean flag = dao.queryChildProduct(epc_id);
			//当前小类下面有商品 true
			if(flag){
				//js跳转到categorycrud.do?method=queryCategory方法并且弹出提示框
				new JsAlertUtil().jsAlert(res,"categorycrud.do?method=queryCategory","当前小类下面有商品,不能删除!!");
				//当前小类下面没有商品 false
			}else{
				//根据分类id删除分类信息
				int result = dao.deleteCategory(epc_id);
				//>0删除成功
				if(result > 0){
					//重定向到categorycrud.do?method=queryCategory方法
					return new ActionForward("categorycrud.do?method=queryCategory",true);
				}else{
					//js跳转到categorycrud.do?method=queryCategory方法并且弹出提示框
					return new JsAlertUtil().jsAlert(res,"Categorycrud.do?method=queryCategory","删除失败！");
				}
			}
		}
		System.out.println("离开了CrudCategoryAction--deleteCategory");
		return null;
	}
}