public void Update(SupportSlot slot)
{
var entity = SupportSlots.Find(slot.ID);
entity.Date = slot.Date;
entity.Slot = slot.Slot;
entity.Engineer = slot.Engineer;
this.SaveChanges();
}
DateTime GetNextEmptyWeekStartDate(SupportSlot lastSlot)
{
if (lastSlot == null)
{
// return Monday of current week, if this is the
return(DateTime.Now.AddDays(-(int)DateTime.Today.DayOfWeek
+ (int)DayOfWeek.Monday).Date);
}
return(lastSlot.Date.AddDays(3));
}
public void PopulateNextSlots()
{
// Setting the number of weeks to 2 in this implementation.
// This ensures for 10 of less Engineers they are added in for at least one full day in each 2 week slot.
// For more than 10 Engineers you can't guarantee that, as not enough slots!
int noWeeks = 2;
// Work out which week to populate next, and get who was last engineer to do a slot:
// 1. Get last slot populated
SupportSlot lastSlot = _supportSlotRepo.Find(e => e.Date >= DateTime.Now).OrderByDescending(e => e.Date).ThenByDescending(e => e.Slot).Take(1).SingleOrDefault();
// 2 . Get start of week for next empty week
DateTime currentDate = GetNextEmptyWeekStartDate(lastSlot);
// 3. Get last engineer (if one) to ensure they aren't added in consecutive slot
int lastEngineerID = (lastSlot == null ? 0 : lastSlot.EngineerID);
// Create an pool of engineers to randomly pull from. Will not repeat engineer until all pulled.
EngineerPool engineerPool = new EngineerPool();
engineerPool.Add(_engineerRepo.Find(e => e.IsAvailable == true).ToList());
// Go through each week, each day and each slot getting next available engineer for each slot.
for (int week = 0; week < noWeeks; week++)
{
for (int day = 0; day < 5; day++)
{
for (int slot = 0; slot < 2; slot++)
{
Engineer e = engineerPool.Pull();
SupportSlot newSlot = new SupportSlot
{
EngineerID = e.ID,
Date = currentDate,
Slot = slot
};
_supportSlotRepo.Add(newSlot);
}
currentDate = currentDate.AddDays(1);
}
currentDate = currentDate.AddDays(2);
}
}
public void Add(SupportSlot slot)
{
SupportSlots.Add(slot);
this.SaveChanges();
}
