package aufgabe4;

import java.util.Date;
import java.util.random.RandomGenerator;

/**
 * Generic test class for implementing a simple patient system for hospitals
 *                _ _   _               _
 * __      ___ __(_) |_| |_ ___ _ __   | |__  _   _
 * \ \ /\ / / '__| | __| __/ _ \ '_ \  | '_ \| | | |
 *  \ V  V /| |  | | |_| ||  __/ | | | | |_) | |_| |
 *   \_/\_/ |_|  |_|\__|\__\___|_| |_| |_.__/ \__, |
 *                                            |___/
 *  ____                  __     __               _
 * / ___|_   _____ _ __   \ \   / /__   __ _  ___| |
 * \___ \ \ / / _ \ '_ \   \ \ / / _ \ / _` |/ _ \ |
 *  ___) \ V /  __/ | | |   \ V / (_) | (_| |  __/ |
 * |____/ \_/ \___|_| |_|    \_/ \___/ \__, |\___|_|
 *                                     |___/
 * Licensed under the GPLv2 License, Version 2.0 (the "License");
 * Copyright (c) Sven Vogel
 */
@SuppressWarnings("unused")
public class Patient extends Object {

    private final String name;
    private final String familyName;
    private final Date birthday;
    // date the patient was delivered to the hospital
    private Date admission;
    // date the patient was finished
    private Date release;
    // universally unique identifier
    private long uuid;

    /**
     * Constructs a new Patient
     * @param name the name of the patient
     * @param familyName the family name of the patient
     * @param birthday the date the patient was born
     */
    public Patient(String name, String familyName, Date birthday) {
        this.name = name;
        this.familyName = familyName;
        this.birthday = birthday;

        this.admission = new Date();
        this.uuid = RandomGenerator.getDefault().nextLong();
    }

    /**
     * Mark the patient as released. Sets the released date to now
     */
    public void release() {
        this.release = new Date();
    }

    /**
     * Reset the release date to null and set the admission day to now
     * the uuid will be regenerated
     */
    public void admission() {
        this.release = null;
        this.admission = new Date();
        this.uuid = RandomGenerator.getDefault().nextLong();
    }

    public String getName() {
        return name;
    }

    public String getFamilyName() {
        return familyName;
    }

    public Date getBirthday() {
        return birthday;
    }

    public Date getAdmission() {
        return admission;
    }

    public Date getRelease() {
        return release;
    }

    public long getUuid() {
        return uuid;
    }

    /**
     * returns true if the other object is a patient with equal name and family name else false
     * @param obj the other object ot compare to
     * @return true if the other object is a patient with equal name and family name else false
     */
    @Override
    public boolean equals(Object obj) {
        if (obj instanceof Patient other) {
            return this.name.equals(other.getName()) && this.familyName.equals(other.getFamilyName());
        }
        return false;
    }

    @Override
    public String toString() {
        return String.format("[Patient: %s %s, admission: %s, uuid: %s, released: %s]", name, familyName, admission.toString(), uuid, release == null ? "" : release.toString());
    }
}