/// <summary>
/// Calculate time in work hours between dates
/// </summary>
/// <param name="start">Start date</param>
/// <param name="end">End date</param>
/// <param name="ts">TimeSpan for summarize</param>
/// <returns></returns>
public TimeSpan WorkTimeDiff(DateTime start, DateTime end, TimeSpan ts)
{
if (end < start)
{
var m = start;
start = end;
end = m;
}
if (start == end)
{
return(ts);
}
var day = days.Where(x => x.date.Date == start.Date).FirstOrDefault();
if (day == null)
{
day = new WCDay(start.Date, this);
}
//if no working time in this day go to next day
var worktimes = day.workTimes.Where(x => x.end > start.TimeOfDay).OrderBy(x => x.start).ToList();
if (!day.isWorkingDay || worktimes.Count() < 1)
{
return(WorkTimeDiff(start.Date.AddDays(1), end, ts));
}
for (int i = 0; i < day.workTimes.Count; i++)
{
var workTime = worktimes[i];
if (start.TimeOfDay < workTime.start)
{
start = start.Date.Add(workTime.start);
}
//if end date bigger then just add worktime and go to next day
if (end.Date > start.Date)
{
ts = ts.Add(workTime.end - start.TimeOfDay);
start = start.Date.Add(workTime.end);
}
else //if we have same date of start and end
{
if (end <= start)
{
return(ts);
}
if (end.TimeOfDay < workTime.end)
{
return(ts.Add(end.TimeOfDay.Add(-start.TimeOfDay)));
}
ts = ts.Add(workTime.end - workTime.start);
start = start.Date.Add(workTime.end);
}
}
return(WorkTimeDiff(start, end, ts));
}
/// <summary>
/// Add worktime to date
/// </summary>
/// <param name="start">Start date</param>
/// <param name="addTime">How many time you need to add?</param>
/// <returns></returns>
public DateTime AddWorkTime(DateTime start, TimeSpan addTime)
{
//no need here
//addTime = addTime.RoundToMinutes();
var day = days.Where(x => x.date.Date == start.Date).FirstOrDefault();
if (day == null)
{
day = new WCDay(start.Date, this);
}
var workTimes = day.workTimes.Where(x => x.end > start.TimeOfDay).OrderBy(x => x.start).ToList();
//if no working time in this day go to next day
if (!day.isWorkingDay || workTimes.Count() < 1)
{
return(AddWorkTime(start.Date.AddDays(1), addTime));
}
//start processing worktimes
for (int i = 0; i < day.workTimes.Count; i++)
{
var workTime = workTimes.ToList()[i];
if (workTime.start > start.TimeOfDay)
{
start = start.Date.Add(workTime.start);
}
//time interval bigger then time need to add
if (workTime.end - start.TimeOfDay > addTime)
{
//we found that we needed
return(start.Add(addTime));
}
else
{
//decrease time to add
addTime = addTime.Add(-(workTime.end - start.TimeOfDay));
start = start.Date.Add(workTime.end);
}
}
return(AddWorkTime(start, addTime));
}
