package controller;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.fasterxml.jackson.databind.ObjectMapper;
import entity.student;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.ModelAndView;
import service.IStudentService;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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

    @Autowired
    IStudentService studentService ;

    @RequestMapping("/find")
    @ResponseBody
    public Object students(HttpServletRequest request){
        Map userMap = new HashMap();
        // 当前页数
        int page = Integer.parseInt(request.getParameter("page"));
        // 显示条数
        int limit = Integer.parseInt(request.getParameter("limit"));
        //作为sql语句的限制条件
        int start = limit * (page-1);
        // 查询出数据的总条数
        int counts = studentService.studentCounts();
        String id = request.getParameter("id");
        if (id==null || id==""){
            List<student> students = studentService.getAllStu(start,limit);
            userMap.put("code",0);
            userMap.put("msg","lay ui-Table数据绑定数据库");
            userMap.put("count",counts);
            userMap.put("data",students);
            JSONObject jsonObject = JSONObject.parseObject(JSONObject.toJSONString(userMap));
            return jsonObject;
        }else{
            student student = new student();
            student.setId(id);
            List<student> students = studentService.getStuById(student);
            userMap.put("code",0);
            userMap.put("msg","lay ui-Table数据绑定数据库");
            userMap.put("count",students.size());
            userMap.put("data",students);
            JSONObject jsonObject = JSONObject.parseObject(JSONObject.toJSONString(userMap));
            return jsonObject;
        }
    }

    @RequestMapping("/delete")
    @ResponseBody
    public int deleteStudent(@RequestParam("id") String id){
        System.out.println("删除操作");
        return studentService.deleteStudent(id);
    }

    @RequestMapping("/batchDelete")
    @ResponseBody
    public int batchDeleteStudents(HttpServletRequest request){
        String str = request.getParameter("str");
        String a[] = str.split(",");
        String arr[] = new String[a.length];
        for (int i = 0 ; i < a.length ; i++){
            arr[i]=a[i];
        }
        return studentService.batchDeleteStudent(arr);
    }

    @RequestMapping(value="/add",method = RequestMethod.POST)
    @ResponseBody
    public int addStudent(student stu){
        System.out.println("新增操作");
        return studentService.addStudent(stu);
    }

    @RequestMapping(value="/edit",method = RequestMethod.POST)
    @ResponseBody
    public int editStudent(student stu){
        System.out.println("编辑操作");
        return studentService.editStudentData(stu);
    }

    @RequestMapping("/main")
    public Object index(){
        return "pages/handleResult";
    }
}