....

/**
 * No comments for you.
 * It was hard to write, so it
 * should be hard to read.
 *
 */
@Entity
@Table(name = "schedule")
@Getter
@Setter
@DynamicUpdate
@JsonIgnoreProperties(ignoreUnknown = true)
@JsonInclude(JsonInclude.Include.NON_EMPTY)
public class ScheduleItem extends AbstractSpaceRelatedEntity implements Serializable {


    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "reporterid", nullable = false)
    ReporterName reporter;

    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "locationid", nullable = false)
    ScheduleLocation location;

    @Column(name = "intime", nullable = false)
    Date inTime;

    @Column(name = "indate")
    @Temporal(TemporalType.DATE)
    @JsonIgnore
    Date inDate;

    @Column(name = "outtime", nullable = false)
    Date outTime;

    @Column(name = "outdate")
    @Temporal(TemporalType.DATE)
    @JsonIgnore
    Date outDate;

    @Column(name = "note", length = 512)
    String note;

    @Column(name = "rtypeenum", nullable = false)
    @Enumerated(EnumType.ORDINAL)
    @NotNull
    @JsonIgnore
    ReminderTypeEnum reminderType;

    @Column(name = "rtime")
    @JsonIgnore
    Date reminderTime;

    @Column(name = "rsent", nullable = false)
    @JsonIgnore
    Boolean sent = false;

    @Column(name = "createdon", nullable = false)
    @JsonIgnore
    Date createdOn;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "createdby", updatable = false, insertable = false)
    @JsonIgnore
    ReporterName createdByName;

    @Column(name = "createdby")
    Long createdBy;

    @Column(name = "editedon")
    @JsonIgnore
    Date editedTime;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "editedby", updatable = false, insertable = false)
    @JsonIgnore
    ReporterName editedByName;

    @Column(name = "editedby")
    Long editedBy;

    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "recurid", updatable = false, insertable = false)
    @JsonIgnore
    LRecurringSchedule recur;

    @Column(name = "recurid")
    Long recurId;

    @Column(name = "tlength")
    Long tLength = 0l;

    public ScheduleItem(ReporterName reporter, ScheduleLocation location, Date inTime, Date outTime, String note, ReminderTypeEnum reminderType, ReporterName createdByName) {
        this(reporter, location, inTime, outTime, note, reminderType, createdByName, null);
    }

    public ScheduleItem(ReporterName reporter, ScheduleLocation location, Date inTime, Date outTime, String note, ReminderTypeEnum reminderType, ReporterName createdByName, LRecurringSchedule recur) {

        this.spaceId = reporter.getSpace();

        this.reporter = reporter;
        this.location = location;

        this.inTime = inTime;
        this.outTime = outTime;

        this.note = note;
        this.reminderType = reminderType;

        this.createdByName = createdByName;
        this.createdBy = createdByName.getId();

        if(recur != null){
            this.recur = recur;
            this.recurId = recur.getId();
        }

    }

    public ScheduleItem() {
        this.createdOn = new Date();
    }

    public ScheduleItem(ReporterName createdByName, Long spaceId) {
        this();
        this.createdByName = createdByName;
        this.createdBy = createdByName.getId();
        this.spaceId = spaceId;
    }

    @JsonIgnore
    public Long getLocationId() {
        ScheduleLocation l = getLocation();
        if (l != null) {
            return l.getId();
        }
        return null;
    }

    @JsonIgnore
    public Long getReporterId() {
        ReporterName r = getReporter();
        if (r != null) {
            return r.getId();
        }
        return null;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        if (!super.equals(o)) return false;

        ScheduleItem that = (ScheduleItem) o;

        if (!reporter.getId().equals(that.reporter.getId())) return false;
        if (!location.getId().equals(that.location.getId())) return false;
        if (!inTime.equals(that.inTime)) return false;
        if (!outTime.equals(that.outTime)) return false;
        if (note != null ? !note.equals(that.note) : that.note != null) return false;
        return !(reminderTime != null ? !reminderTime.equals(that.reminderTime) : that.reminderTime != null);

    }
    @Override
    public int hashCode() {
        int result = super.hashCode();
        result = 31 * result + reporter.getId().hashCode();
        result = 31 * result + location.getId().hashCode();
        result = 31 * result + inTime.hashCode();
        result = 31 * result + outTime.hashCode();
        result = 31 * result + (note != null ? note.hashCode() : 0);
        result = 31 * result + (reminderTime != null ? reminderTime.hashCode() : 0);
        return result;
    }

    public void setReminderType(ReminderTypeEnum type){
        this.reminderType = type;
    }

    @PrePersist
    private void prePersist() {
        createdOn = new Date();
        calculateValues();
        updateReminderTime();
    }

    @PreUpdate
    private void calculateValues() {
        updateReminderTime();

        if (outTime != null) {
            //difference in milliseconds between the times
            long diff = outTime.getTime() - inTime.getTime();
            tLength = diff / 1000;

        } else {
            tLength = 0l;
        }
    }

    public void updateReminderTime() {

        if(reminderType == null || inTime == null){
            return;
        }

        if (reminderType == ReminderTypeEnum.NONE) {
            reminderTime = null;
        } else {
            long t = inTime.getTime();
            reminderTime = new Date(t + reminderType.getMilliSecondsOffset());
        }
    }

    public String getDays(){
        return recur != null ? recur.getDays() : null;
    }

    public RecurTypeEnum getRecurType(){
        return recur != null ? recur.getRecurType() : null;
    }

    public LocalDate getEnd() {
        return recur != null ? recur.getEnd() : null;
    }

    public void setRecur(LRecurringSchedule recur) {
        this.recur = recur;
        this.setRecurId(recur != null ? recur.getId() : null);
    }

    @Override
    public String toString() {
        return "ScheduleItem{" +
            "id=" + id +
            ", inTime=" + inTime +
            ", outTime=" + outTime +
            ", note='" + note + '\'' +
            ", reminderType=" + reminderType +
            ", recur=" + recur +
            ", recurid=" + recurId +
            '}';
    }
}