package com.hp.school.controller;

import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

import com.hp.school.entity.Clazz;
import com.hp.school.entity.Student;
import com.hp.school.page.Page;
import com.hp.school.service.ClazzService;
import com.hp.school.service.StudentService;

import net.sf.json.JSONArray;

@RequestMapping("/student")
@Controller
public class StudentController {

	// ע��ѧ��
	@Autowired
	private StudentService studentService;
	// ע��ѧ��
	@Autowired
	private ClazzService clazzService;

	@RequestMapping("/upload_photo")
	@ResponseBody
	public Map<String, Object> uploadphoto(MultipartFile photo, HttpServletRequest request,
			HttpServletResponse response) {
		Map<String, Object> map = new HashMap<>();

		// �ж� �Ƿ��Ѿ�ѡ��һ���ļ�
		if (photo == null) {
			map.put("type", "error");
			map.put("msg", "��ѡ���ļ�!");
			return map;
		}
		// 1. ѡ�е��ļ��Ƿ񳬹� �������ֵ
		if (photo.getSize() > 10485760) {
			map.put("type", "error");
			map.put("msg", "�ļ��������10M!");
			return map;
		}
		// 2.����ֻ�����ϴ�ͼƬ ,�ж� ��׺�Ƿ���ͼƬ
		String originalFilename = photo.getOriginalFilename(); // ��ȡ�ϴ��ļ���123.jpg

		// ��ȡ ��׺ jpg
		String suffix = originalFilename.substring(originalFilename.lastIndexOf(".") + 1, originalFilename.length());
		if (!"jpg,png,gif,jpeg".contains(suffix.toLowerCase())) {
			map.put("type", "error");
			map.put("msg", "ֻ���ϴ�ͼƬ!");
			return map;
		}
		// 3. ��ȡ �ļ��ϴ� ������·��
		String serverPath = request.getServletContext().getRealPath("/") + "\\" + "upload" + "\\";
		// System.out.println(serverPath);
		File file = new File(serverPath);
		if (!file.exists()) {
			file.mkdir(); // ����������·�� ...tomcat/xx/xxx/upload
		}
		// 4.�ϴ�
		 String filename = new Date().getTime()+ originalFilename;
		try {
			photo.transferTo(new File(serverPath + filename));// �ϴ�
		} catch (IOException e) {
			e.printStackTrace();
		}
		// System.out.println(request.getServletContext().getContextPath()+"/"+originalFilename);
		map.put("type", "success");
		map.put("msg", "�ϴ��ɹ�");
		map.put("src", request.getServletContext().getContextPath() + "/" + "upload/" + filename   );
		return map;
	}

	// list
	 
	/*@RequestMapping(value="/list",method=RequestMethod.GET)
	public ModelAndView toLogin(ModelAndView model){
		model.setViewName("student/student_list");
		return model;
	}
	*/
	/**
	 * ��ת�� ѧ��jspҳ�� ,��תͬʱЯ�� ѧ�� �б���Ϣ
	 * @param model
	 * @return
	 */
	@RequestMapping("/list")
	public ModelAndView list(ModelAndView model){
		model.setViewName("student/student_list");
		//�� ����ѧ�� ��Ϣ ���б�
		List<Clazz> clazzList = clazzService.findAll();	
		model.addObject("clazzList", clazzList);	//�� ѧ���б� �󶨵� model��
		// ѧ�� �б� �� ��̬��ɵ� , ���������json��� , �� ѧ��ת��json , �Ա��� clazz_list.jspҳ�� �б���ʾjsonѧ����Ϣ
		model.addObject("gradeListJson", JSONArray.fromObject(clazzList));
		return model;
	}
	
	
	/**
	 * ���ѧ��
	 * @param user
	 * @return
	 */
	@RequestMapping(value="/add",method=RequestMethod.POST)
	@ResponseBody
	public Map<String,String> add(Student student){
		
		Map<String,String> map = new HashMap<String, String>();
		if(StringUtils.isEmpty(student.getUsername())){
			map.put("type", "error");
			map.put("msg", "ѧ������Ϊ��!");
			return map;
		}
		student.setSn("s2019"+new Date().getTime());
		//����ѧ��
		int result = studentService.add(student);
		
		// TODO  ѧ��  ,���������� 
		
		if(result<=0){
			map.put("type", "error");
			map.put("msg", "ѧ���ʧ��!");
			return map;
		}
		map.put("type", "success");
		map.put("msg", "���ѧ��ɹ�!");
		return map;
	}
	/**
	 * ��ȡѧ���б���� --  �� ������ѯ ��ҳ
	 * @return
	 */
	@RequestMapping(value="/get_list",method=RequestMethod.POST)
	@ResponseBody
	/**
	 * @param username	ģ���ѯ����
	 * @param page		��ҳ��
	 * @param gradeId		��� �꼶 ɸѡ ,���꼶����� ѧ����Ϣ
	 * @return
	 */
	public Map<String,Object> getList(
			@RequestParam(name="name",required=false,defaultValue="") String name,
			@RequestParam(name="clazzid",required=false) String clazzid,
			Page page
			){
		Map<String,Object> map = new HashMap<>();	// �������������
		// ���map ��ͬ��  QueryBean 
		Map<String,Object> queryMap = new HashMap<>();	// ��һ����ѯ������
		//ƴװ limit ?,? 
		queryMap.put("offset", page.getOffset());
		queryMap.put("pageSize", page.getRows());	
		queryMap.put("name", "%"+name+"%");
		if(clazzid!=null){	// �Ѿ�ѡ����һ���Ѵ��ڵ��꼶
			queryMap.put("clazzId", clazzid);
		}
		
		map.put("rows", studentService.getList(queryMap));		//�����ѯ�ĵ�2ҳ��ʾ��һ���������
		map.put("total", studentService.getTotal(queryMap));	//����������
		
		return map;
	}
}