public void DuplicateMeetingsReturnsError()
{
var duplicatedDate = DateTime.Now;
_meetings.Add(new Meeting(duplicatedDate, 3, 1));
_meetings.Add(new Meeting(duplicatedDate, 3, 2));
var expectedError = new OverlappedMeetingError(duplicatedDate);
var result = _validationService.ValidateNoOverlappedMeetings(_meetings);
Assert.Equal(expectedError.Code, result.Code);
Assert.Equal(expectedError.Message, result.Message);
}
public void OverlappedMeetingReturnsError()
{
var duplicatedDate = DateTime.Now.AddDays(1);
var overlappingMeeting = new Meeting(duplicatedDate.AddHours(1), 3, 2);
_meetings.Add(overlappingMeeting);
_meetings.Add(new Meeting(duplicatedDate, 3, 1));
var expectedError = new OverlappedMeetingError(overlappingMeeting.Date);
var result = _validationService.ValidateNoOverlappedMeetings(_meetings);
Assert.Equal(expectedError.Code, result.Code);
Assert.Equal(expectedError.Message, result.Message);
}
public IResult ValidateNoOverlappedMeetings(IList <Meeting> meetings)
{
//grouping the meetings by date.
var query = meetings.GroupBy(m => m.Date.Date);
//going throw all grouped dates.
foreach (var date in query)
{
//getting all meetings for certain date and order them by time.
var dateMeetings = meetings.Where(d => d.Date.Date == date.Key).OrderBy(p => p.Date).ToList();
//setting the next available time based on the end time of the first meeting of the day.
var nextAvailableTime = dateMeetings.First().End;
int meetingCounter = 1;
//going throw all meetings for the day.
foreach (var meeting in dateMeetings)
{
//Skipping the first meeting of the day.
if (meetingCounter > 1)
{
if (meeting.Date < nextAvailableTime)
{
var error = new OverlappedMeetingError(meeting.Date);
_errorResolver.Resolve(error);
return(error);
}
//Set the end of the current meeting as a value for the next available time.
else
{
nextAvailableTime = meeting.End;
}
}
meetingCounter++;
}
}
return(new SuccessfulResult());
}
