/**
 * Assignment 2, COMP268 Class: Citizen.java
 *
 * @description A citizen with an id and educational qualifiation.
 * @author: mo khan Student ID: 3431709
 * @date Jul 13, 2019
 * @version 1.0
 */
package Q5;

import java.util.*;

public class Citizen {
  private int citizenId;
  private int educationalQualification;
  public static final int DOCTORATE = 4;
  public static final int HIGH_SCHOOL = 1;
  public static final int POSTGRADUATE = 3;
  public static final int UNDERGRADUATE = 2;
  private static int id = 0;

  /**
   * Creates an instance of a citizen with a specific id.
   *
   * @param citizenId the identifier for the citizen
   */
  public Citizen(int citizenId) {
    this(citizenId, Citizen.generateEducationalQualification());
  }

  /**
   * Creates an instance of a citizen with a specific id and qualification.
   *
   * @param citizenId the identifier for the citizen
   * @param qualification the educational qualification of the citizen
   */
  public Citizen(int citizenId, int qualification) {
    this.citizenId = citizenId;
    this.educationalQualification = qualification;
  }

  /**
   * Returns the educational qualification
   *
   * @return the educational qualfication represented as an integer value.
   */
  public int getEducationalQualification() {
    return this.educationalQualification;
  }

  /**
   * Generates a random educational qualification.
   *
   * @return educational qualification.
   */
  public static int generateEducationalQualification() {
    return new Random().nextInt(4) + 1;
  }

  /**
   * Generates a unique id for a citizen.
   *
   * @return a new id for a citizen.
   */
  public static int generateId() {
    id++;
    return id;
  }

  /**
   * Converts an integer to a string.
   *
   * @param i the integer to convert to a string
   * @return the converted integer as a string.
   */
  public static String convert(int i) {
    return String.valueOf(i);
  }

  /** Resets the internal id counter to zero. */
  public static void resetId() {
    id = 0;
  }
}