package action;

import Bean.*;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.hibernate.Session;
import tools.*;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.util.List;

public class Student extends HibernateTools implements ServletRequestAware {
    private int sno;
    private Integer age;
    private Integer classid;
    private String name;
    private String sex;
    private String spd;
    private String spdcheck;
    private String dept;
    private String school;
    private File file;//上传文件的file对象，由拦截器自动填充
    private String fileFileName;//上传文件名，由拦截器自动填充
    private String fileContentType;//上传文件类型，由拦截器自动填充

    private Session session;
    private int update;//判断是添加学生还是更新学生信息
    private List<StudentEntity> stuEntities;
    private int delkey;
    private int updatekey;
    public String addStudent(){
        showStudents();
        if (session==null||!session.isOpen()){
            session=init();
        }
        if (sno==0||age==0||classid==0||name==null||sex==null||spd==null||spdcheck==null||school==null||dept==null){
           addActionError("请输入所有必填内容");
            return update==0?ERROR:"manage";
        }
        if (!spd.equals(spdcheck))
        {
           addActionError("两次密码不相同");
            return update==0?ERROR:"manage";
        }
        StudentEntity stuEntity=session.get(StudentEntity.class, sno);
        if (stuEntity!=null&&update==0){
            addActionError("该生已经存在,无法重复添加");
            return update==0?ERROR:"manage";
        }
        if (session.get(ClassEntity.class, classid)==null){
            addActionError("班级不存在,请检查班级号");
            return update==0?ERROR:"manage";
        }
        if (fileContentType==null||(!fileContentType.equals("image/jpeg")&&!fileContentType.equals("image/jpg"))){
            addActionError("图片格式不正确,请上传jpg格式");
            return update==0?ERROR:"manage";
        }
    if (update==0)//避免出现两个相同的实体
        stuEntity=new StudentEntity();
        stuEntity.setStudentId(sno);
        stuEntity.setAge(age);
        stuEntity.setClassId(classid);
        stuEntity.setName(name);
        stuEntity.setSex(sex);
        stuEntity.setPassword(spd);
        stuEntity.setDept(dept);
        stuEntity.setSchool(school);
        stuEntity.setHeadImg(filetobytes.Filetobyte(file));
        session.saveOrUpdate(stuEntity);
        destory();
        showStudents();
        if (update==1){
            addActionError("修改成功");
            return "update";
        }
        addActionError("添加成功");
        return SUCCESS;
    }

    public String delstudent(){
        showStudents();
        if (session==null||!session.isOpen()){
            session=init();
        }
        if (delkey==0){
           addActionError("未指定删除对象");
            return INPUT;
        }
        StudentEntity stuEntity=session.get(StudentEntity.class, delkey);
        if (stuEntity==null){
           addActionError("该学生已经不存在");
            return ERROR;
        }
        session.delete(stuEntity);
        destory();
        delkey=0;
        addActionError("删除成功");
        showStudents();
        return SUCCESS;
    }
    public String showStudents(){
        if (session==null||!session.isOpen()){
            session=init();
        }
        stuEntities=session.createQuery("from StudentEntity order by studentId").getResultList();
        destory();
        return SUCCESS;
    }

public String premanageStudent(){
        //刷新学生信息
    session=init();
    if (updatekey==0){
        return INPUT;
    }
    StudentEntity stuEntity=session.get(StudentEntity.class, updatekey);
    if (stuEntity==null){
        addActionError("用户不存在,请刷新后重试");
        return ERROR;
    }
    sno=stuEntity.getStudentId();
    name=stuEntity.getName();
    sex=stuEntity.getSex();
    spdcheck=spd=stuEntity.getPassword();
    age=stuEntity.getAge();
    classid=stuEntity.getClassId();
    school=stuEntity.getSchool();
    dept=stuEntity.getDept();
    spd=spdcheck=stuEntity.getPassword();
    destory();
       return SUCCESS;
}

    @Override
    public void setServletRequest(HttpServletRequest httpServletRequest) {

    }

    public int getSno() {
        return sno;
    }

    public void setSno(int sno) {
        this.sno = sno;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public Integer getClassid() {
        return classid;
    }

    public void setClassid(Integer classid) {
        this.classid = classid;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getSpd() {
        return spd;
    }

    public void setSpd(String spd) {
        this.spd = spd;
    }

    public int getUpdatekey() {
        return updatekey;
    }

    public void setUpdatekey(int updatekey) {
        this.updatekey = updatekey;
    }

    public String getSpdcheck() {
        return spdcheck;
    }

    public void setSpdcheck(String spdcheck) {
        this.spdcheck = spdcheck;
    }

    public List<StudentEntity> getStuEntities() {
        return stuEntities;
    }

    public void setStuEntities(List<StudentEntity> stuEntities) {
        this.stuEntities = stuEntities;
    }

    public int getDelkey() {
        return delkey;
    }

    public void setDelkey(int delkey) {
        this.delkey = delkey;
    }

    public int getUpdate() {
        return update;
    }

    public void setUpdate(int update) {
        this.update = update;
    }

    public String getDept() {
        return dept;
    }

    public void setDept(String dept) {
        this.dept = dept;
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public File getHeadImg() {
        return file;
    }

    public void setHeadImg(File file) {
        this.file = file;
    }

    public File getFile() {
        return file;
    }

    public void setFile(File file) {
        this.file = file;
    }

    public String getFileFileName() {
        return fileFileName;
    }

    public void setFileFileName(String fileFileName) {
        this.fileFileName = fileFileName;
    }

    public String getFileContentType() {
        return fileContentType;
    }

    public void setFileContentType(String fileContentType) {
        this.fileContentType = fileContentType;
    }

    public String getHeadImgContentType() {
        return fileContentType;
    }

    public void setHeadImgContentType(String fileContentType) {
        this.fileContentType = fileContentType;
    }
}