package cn.temptation.web;

import cn.temptation.dao.CategoryDao;
import cn.temptation.model.Category;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
public class CategoryController {
    @Autowired
    private CategoryDao categoryDao;

    /**
     * 不分页查询
     *
     * @return
     */
//    @RequestMapping("/categorylist")
//    public ModelAndView categorylist() {
//        List<Category> list = categoryDao.findAll();
//
//        ModelAndView mav = new ModelAndView("categorylist");
//        mav.addObject("list", list);
//        return mav;
//    }

    /**
     * 分页查询
     *
     * @return
     */
    @RequestMapping("/categorylist")
    public ModelAndView categorylist(@RequestParam(value = "start", defaultValue = "0") Integer start,
                                     @RequestParam(value = "limit", defaultValue = "2") Integer limit) {
        start = start < 0 ? 0 : start;

        Sort sort = new Sort(Sort.DEFAULT_DIRECTION, "categoryid");
        Pageable pageable = new PageRequest(start, limit, sort);
        Page<Category> page = categoryDao.findAll(pageable);

//        System.out.println(page.getNumber());
//        System.out.println(page.getNumberOfElements());
//        System.out.println(page.getSize());
//        System.out.println(page.getTotalElements());
//        System.out.println(page.getTotalPages());
//        System.out.println(page.isFirst());
//        System.out.println(page.isLast());

        ModelAndView mav = new ModelAndView("categorylist");
        mav.addObject("page", page);
        return mav;
    }

    /**
     * 类别新增视图
     * @return
     */
    @RequestMapping("/categoryinit")
    public String categoryinit() {
        return "categoryinit";
    }

    /**
     * 类别新增操作
     * @param model
     * @return
     */
    @RequestMapping("/categoryinsert")
    public String categoryinsert(Category model) {
        categoryDao.save(model);
        return "redirect:categorylist";
    }

    /**
     * 类别删除操作
     * @param categoryid
     * @return
     */
    @RequestMapping("/categorydelete")
    public String categorydelete(Integer categoryid) {
        categoryDao.deleteById(categoryid);
        return "redirect:categorylist";
    }

    /**
     * 类别编辑视图
     * @param categoryid
     * @return
     */
    @RequestMapping("/categoryedit")
    public ModelAndView categoryedit(Integer categoryid) {
        Category model = categoryDao.getOne(categoryid);

        ModelAndView mav = new ModelAndView("categoryedit");
        mav.addObject("category", model);
        return mav;
    }

    /**
     * 类别编辑操作
     * @param model
     * @return
     */
    @RequestMapping("/categoryupdate")
    public String categoryupdate(Category model) {
        categoryDao.save(model);
        return "redirect:categorylist";
    }
}