package fr.gasser.daoexample.dao;

import fr.gasser.daoexample.model.Student;
import fr.gasser.daoexample.sql.Connection;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class StudentDao extends Dao<Student> {

    // Emulate student table
    private final static List<Student> students = new ArrayList<>(Arrays.asList(
            new Student(0, "Azerty", "Uiop"),
            new Student(1, "Foo", "Bar"),
            new Student(2, "Qsdf", "Jklm"))
    );

    StudentDao(Connection connection) {
        super(connection);
    }

    @Override
    public boolean create(Student obj) {
        students.add(obj);
        return true;
    }

    @Override
    public Student find(int id) {
        return students.get(id);
    }

    @Override
    public List<Student> findAll() {
        return students;
    }

    @Override
    public boolean update(Student obj) {
        if (!containsId(obj.getId())) return false;
        students.set(obj.getId(), obj);
        return true;
    }

    @Override
    public boolean delete(Student obj) {
        return students.remove(obj);
    }

    private boolean containsId(int id) {
        return students.stream().anyMatch(student -> id == student.getId());
    }
}