package ejbs;

import entities.Student;
import exceptions.EntityAlreadyExistsException;

import javax.annotation.PostConstruct;
import javax.ejb.EJB;
import javax.ejb.EJBException;
import javax.ejb.Singleton;
import javax.ejb.Startup;

@Singleton(name = "ConfigEJB")
@Startup
public class ConfigBean {
    @EJB
    private StudentBean studentBean;
    @EJB
    CourseBean courseBean;
    @EJB
    SubjectBean subjectBean;
    @EJB
    TeacherBean teacherBean;
    @EJB
    AdministratorBean administratorBean;

    @PostConstruct
    public void populateDB() {
        try{
            System.out.println("#### Populating DB...");
            System.out.println("-- Courses...");
            courseBean.create(1, "EI");
            courseBean.create(2, "JDM");
            courseBean.create(3, "MEI-CM");
            courseBean.create(4, "MCIF");

            System.out.println("-- Creating students...");
            studentBean.create("1111111", "Manuel", "Manuel", "dae.ei.ipleiria@gmail.com",1);
            studentBean.create("2222222", "Antonio", "António", "dae.ei.ipleiria@gmail.com",2);
            studentBean.create("3333333", "Ana", "Ana", "dae.ei.ipleiria@gmail.com",3);
            studentBean.create("4444444", "Jose", "José", "dae.ei.ipleiria@gmail.com",4);
            studentBean.create("5555555", "Maria", "Maria", "dae.ei.ipleiria@gmail.com",1);
            studentBean.create("6666666", "Joaquim", "Joaquim", "dae.ei.ipleiria@gmail.com",2);
            studentBean.create("7777777", "Alzira", "Alzira", "dae.ei.ipleiria@gmail.com",3);
            studentBean.create("8888888", "Pedro", "Pedro", "dae.ei.ipleiria@gmail.com",4);

            //ERROR
            //studentBean.create("7777777", "Alzira", "Alzira", "dae.ei.ipleiria@gmail.com",30);

            System.out.println("-- Creating subjects...");
            subjectBean.create(1, "P1", 1, 1, "2015/2016");
            subjectBean.create(2, "PA", 1, 2, "2015/2016");
            subjectBean.create(3, "IA", 1, 2, "2015/2016");
            subjectBean.create(4, "DAE", 1, 3, "2015/2016");
            subjectBean.create(5, "ComputProg", 2, 1, "2015/2016");
            subjectBean.create(6, "ComplProg", 2, 1, "2015/2016");
            subjectBean.create(7, "PA", 2, 2, "2015/2016");

            System.out.println("-- Enrolling students...");
            studentBean.enrollStudentInSubject("1111111", 1);
            studentBean.enrollStudentInSubject("1111111", 2);
            studentBean.enrollStudentInSubject("2222222", 3);
            studentBean.enrollStudentInSubject("2222222", 4);

            studentBean.enrollStudentInSubject("3333333", 5);
            studentBean.enrollStudentInSubject("3333333", 6);
            studentBean.enrollStudentInSubject("4444444", 6);
            studentBean.enrollStudentInSubject("4444444", 7);

            System.out.println("-- Creating teachers...");
            teacherBean.create("t1", "t1", "t1", "t1@ipleiria.pt", "O1");
            teacherBean.create("t2", "t2", "t2", "t2@ipleiria.pt", "O2");
            teacherBean.create("t3", "t3", "t3", "t3@ipleiria.pt", "O3");

            System.out.println("-- Creating administrators...");
            administratorBean.create("a1", "a1", "a1", "a1@ipleiria.pt");
            administratorBean.create("a2", "a2", "a2", "a2@ipleiria.pt");
            administratorBean.create("a3", "a3", "a3", "a3@ipleiria.pt");

            //...
            System.out.println("Finished! ####");
        } catch (EntityAlreadyExistsException e) {
            System.err.println("ERROR: " + e.getMessage());
        } catch (IllegalArgumentException e) {
            System.err.println("ERROR: " + e.getMessage());
        } catch (EJBException e) {
            System.err.println("ERROR: " + e.getMessage());
        }
    }
}