/**
 * Assignment 2, COMP268 Class: Person.java
 *
 * @description A class used to shame a person by calculating a BMI which has no value whatsoever.
 * @author: mo khan Student ID: 3431709
 * @date Jul 19, 2019
 * @version 1.0
 */
package Q7;

import java.util.*;

public class Person {
  private double bmi;
  private double height;
  private double weight;
  private String name;

  /**
   * Create an instance of a person and calculates their BMI.
   *
   * @param name the name of the person
   * @param weight the weight of the person
   * @param height the height of the person
   */
  public Person(String name, double weight, double height) {
    this.name = name;
    this.weight = weight;
    this.height = height;
    this.updateBMI();
  }

  /**
   * Returns the category the person is categorized as based on BMI.
   *
   * @return A category of "Underweight", "Normal", "Overweight" or "Obese"
   */
  public String getCategory() {
    return this.getCategory(this.bmi);
  }

  /**
   * Returns the category for the BMI.
   *
   * @param bmi the BMI to determine a category for.
   * @return A category of "Underweight", "Normal", "Overweight" or "Obese"
   */
  public String getCategory(double bmi) {
    if (bmi < 18.5) return "Underweight";
    else if (bmi < 25.0) return "Normal";
    else if (bmi < 30.0) return "Overweight";
    return "Obese";
  }

  /**
   * Returns the persons name
   *
   * @return the persons name
   */
  public String getName() {
    return this.name;
  }

  /**
   * Returns the persons BMI
   *
   * @return the persons BMI
   */
  public double getBMI() {
    return this.bmi;
  }

  /**
   * Returns the persons height
   *
   * @return the persons height
   */
  public double getHeight() {
    return this.height;
  }

  /**
   * Returns the persons weight
   *
   * @return the persons weight
   */
  public double getWeight() {
    return this.weight;
  }

  /**
   * Change the BMI
   *
   * @param bmi the new BMI
   */
  private void setBMI(double bmi) {
    this.bmi = bmi;
  }

  /**
   * Change the Height
   *
   * @param height the new height
   */
  public void setHeight(double height) {
    this.height = height;
    this.updateBMI();
  }

  /**
   * Change the name
   *
   * @param name the new name
   */
  public void setName(String name) {
    this.name = name;
  }

  /**
   * Change the weight
   *
   * @param weight the new weight
   */
  public void setWeight(double weight) {
    this.weight = weight;
    this.updateBMI();
  }

  private void updateBMI() {
    this.setBMI((this.weight * 703) / Math.pow(height, 2));
  }

  /** The entry point to the console application. */
  public static void main(String[] args) {
    ArrayList<Person> people = new ArrayList<Person>();
    people.add(new Person("Andrew", 125.5, 55.1));
    people.add(new Person("Boyd", 150.0, 67.0));
    people.add(new Person("Cathy", 135.0, 72.3));
    people.add(new Person("Donna", 190.0, 64.0));

    System.out.println(String.format("%-20s Weight Height BMI Category", "Name"));
    System.out.println("-----------------------------------------------");
    for (Person person : people) {
      System.out.println(
          String.format(
              "%-20s %+5.1f %+6.1f %+3.0f %s",
              person.getName(),
              person.getWeight(),
              person.getHeight(),
              person.getBMI(),
              person.getCategory()));
    }
  }
}