Program-3.cs

Program-3.cs

// Reading last attendance file
var LastAttendanceRecords = CsvHelperExtension.GetOutputRecords(attendanceFile);

var CsvOutputRecords = usersWithMinutes.Select(x =>
{
    var fullName = string.Join(" ", x.Key.Split(' ').Reverse()).Trim();

    var lastRecord = LastAttendanceRecords.FirstOrDefault(f => f.FullName == fullName);

    var count = lastRecord?.AttendanceCount ?? 0;

    var lastAttendanceLength = lastRecord?.AttendanceLength ?? "0";

    LastAttendanceRecords.Remove(lastRecord);

    return new RecordOutput
    {
        FullName = fullName,
        AttendanceCount = count + (x.Value > timeForAttendanceToCount ? 1 : 0),
        AttendanceLength = $"{lastAttendanceLength}, {lectureNumber}: [{x.Value:f2}]"
    };
})
.ToList();

// Add not present student from last file
CsvOutputRecords.AddRange(LastAttendanceRecords);