static List <ShiftByDay> ConsolidateShifts(List <ShiftByDay> left, List <ShiftByDay> right)
{
List <ShiftByDay> finalList = new List <ShiftByDay>();
// Create the union of both left and right sets.
foreach (ShiftByDay day in left)
{
finalList.Add(day); // Start with the left list.
}
foreach (ShiftByDay day in right)
{
ShiftByDay existingDay = finalList.Where(m => m.date == day.date).FirstOrDefault();
if (existingDay == null) // No merge required - just add the right entry.
{
finalList.Add(day);
continue;
}
// Okay this will fail if the same check-in and
// check-out times show up again as duplicate records.
// I.e. I assume the clock times are unique per employee.
existingDay.total += day.total;
existingDay.labour_by_time_period.period1 += day.labour_by_time_period.period1;
existingDay.labour_by_time_period.period2 += day.labour_by_time_period.period2;
existingDay.labour_by_time_period.period3 += day.labour_by_time_period.period3;
existingDay.labour_by_time_period.period4 += day.labour_by_time_period.period4;
}
return(finalList.OrderBy(m => m.date).ToList());
}
static List <ShiftByDay> GetShiftsByDay(DateTime clockIn, DateTime clockOut)
{
List <ShiftByDay> outputList = new List <ShiftByDay>();
// We need to count from the day before because Period 4 can go until 5 AM.
DateTime currentTime = new DateTime(clockIn.Year, clockIn.Month, clockIn.Day, 5, 0, 0).AddDays(-1);
while (DateTime.Compare(currentTime, clockOut) < 0) // currentDate < end
{
ShiftByDay shift = new ShiftByDay();
shift.date = currentTime.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture);
// Time to calculate the periods.
DayPeriods day = new DayPeriods();
day.period1 = CalculateNextPeriod(ref currentTime, clockIn, clockOut, 7); // 5 am + 7 = 12 pm
day.period2 = CalculateNextPeriod(ref currentTime, clockIn, clockOut, 6); // 12 pm + 6 = 6 pm
day.period3 = CalculateNextPeriod(ref currentTime, clockIn, clockOut, 5); // 6 pm + 5 = 11 pm
day.period4 = CalculateNextPeriod(ref currentTime, clockIn, clockOut, 6); // 11 pm + 6 = 5 am
// If this day has any hours, then add to our result set.
decimal total = day.period1 + day.period2 + day.period3 + day.period4;
if (total > 0)
{
shift.labour_by_time_period = day;
shift.total = total;
outputList.Add(shift);
}
}
return(outputList);
}