Match Scan Card Algorithm

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

public class MatchScanCard {

    public static void main(String[] args) {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

            List<OvertimeHour> overtimeHours = List.of(
                new OvertimeHour(
                    1L, 1L,
                    sdf.parse("2025-01-01 07:00:00"),
                    sdf.parse("2025-01-01 15:00:00"),
                    1, "SCHEDULED"
                ),

                new OvertimeHour(
                    1L, 2L,
                    sdf.parse("2025-01-01 11:00:00"),
                    sdf.parse("2025-01-01 12:00:00"),
                    2, "SCHEDULED"
                ),

                new OvertimeHour(
                    1L, 3L,
                    sdf.parse("2025-01-01 13:30:00"),
                    sdf.parse("2025-01-01 13:40:00"),
                    3, "SCHEDULED"
                )
            );

            Overtime ot = new Overtime(1L, 12136L, overtimeHours);

            List<AttRec> attRecs = List.of(
                new AttRec(1L, 12136L, sdf.parse("2025-01-01 06:55:53")),
                new AttRec(2L, 12136L, sdf.parse("2025-01-01 10:54:53")),
                new AttRec(3L, 12136L, sdf.parse("2025-01-01 11:01:05")),
                new AttRec(4L, 12136L, sdf.parse("2025-01-01 11:58:32")),
                new AttRec(5L, 12136L, sdf.parse("2025-01-01 12:06:32")),
                new AttRec(6L, 12136L, sdf.parse("2025-01-01 13:24:45")),
                new AttRec(7L, 12136L, sdf.parse("2025-01-01 15:03:11"))
            );
        } catch (ParseException e) {
            System.err.println(e.getMessage());
            e.printStackTrace();
        }
    }
}

class Overtime {
    private final Long otRid;
    private final Long staffRid;
    private final List<OvertimeHour> overtimeHours;

    public Overtime(Long otRid, Long staffRid, List<OvertimeHour> overtimeHours) {
        this.otRid = otRid;
        this.staffRid = staffRid;
        this.overtimeHours = overtimeHours;
    }

    public Long getOtRid() { return otRid; }
    public Long getStaffRid() { return staffRid; }
    public List<OvertimeHour> getOvertimeHours() { return overtimeHours; }
}

class OvertimeHour {
    private final Long otRid;
    private final Long otHourRid;
    private final Date startTime;
    private final Date endTime;
    private final Integer timeslotRid;
    private final String source;

    public OvertimeHour(Long otRid, Long otHourRid, Date startTime,
                        Date endTime, Integer timeslotRid, String source) {
        this.otRid = otRid;
        this.otHourRid = otHourRid;
        this.startTime = startTime;
        this.endTime = endTime;
        this.timeslotRid = timeslotRid;
        this.source = source;
    }

    public Long getOtRid() { return otRid; }
    public Long getOtHourRid() { return otHourRid; }
    public Date getStartTime() { return startTime; }
    public Date getEndTime() { return endTime; }
    public Integer getTimeslotRid() { return timeslotRid; }
    public String getSource() { return source; }
}

class AttRec {
    private final Long recRid;
    private final Long staffRid;
    private final Date scanDateTime;

    public AttRec(Long recRid, Long staffRid, Date scanDateTime) {
        this.recRid = recRid;
        this.staffRid = staffRid;
        this.scanDateTime = scanDateTime;
    }

    public Long getRecRid() { return recRid; }
    public Long getStaffRid() { return staffRid; }
    public Date getScanDateTime() { return scanDateTime; }
}