public void AddTestData()
{
var prevTime = time;
try
{
var time = new OffsetSystemTimeService();
this.time = time;
//dbContext.ChangeTracker.AutoDetectChangesEnabled = false;
var positionId = dbContext.Position.First().Id;
var rand = new Random(0);
var workers = new List <Employee>();
var seniors = new List <Employee>();
var juniors = new List <Employee>();
var advanceYears = new[] { 5, 8, 20, 50, 150, 190 };
double leaveRate = 0.15;
time.AddYears(-advanceYears.Length);
const int maxRating = 50;
EmployeeDetail viewModel;
Employee employee;
for (int i = 0; i < 200; i++)
{
viewModel = GetNewEmployeeViewModel();
viewModel.Name = $"Employee {(i + 1).ToString("0000")}";
viewModel.Position = positionId;
employee = new Employee();
workers.Add(employee);
juniors.Add(employee);
UpdateEmployeeFromView(employee, viewModel);
dbContext.Employee.Add(employee);
if (seniors.Count > 0)
{
employee.Manager = seniors[rand.Next(seniors.Count)];
}
if (juniors.Count >= Math.Max(3, seniors.Count * 5))
{
//dbContext.ChangeTracker.DetectChanges();
seniors = juniors;
juniors = new List <Employee>();
}
if (advanceYears.Contains(i))
{
time.AddYears(1);
for (int j = workers.Count - 1; j >= 0; j--)
{
var item = workers[j];
if (rand.NextDouble() < leaveRate)
{
item.Name += " (unemployed)";
workers.RemoveAt(j);
if (seniors.Remove(item))
{
var unmanagedJuniors = juniors.Where(x => x.Manager == item).ToList();
if (seniors.Count == 0 && unmanagedJuniors.Count > 1)
{
var manager = unmanagedJuniors[0];
//dbContext.ChangeTracker.DetectChanges();
seniors.Add(manager);
juniors.Remove(manager);
foreach (var unmanaged in unmanagedJuniors)
{
unmanaged.Manager = manager;
}
}
else
{
foreach (var unmanaged in unmanagedJuniors)
{
unmanaged.Manager = seniors[rand.Next(seniors.Count)];
}
}
}
juniors.Remove(item);
continue;
}
var itemView = GetEmployeeViewModel(item);
if (item.Manager == null)
{
itemView.Rating = RatingToFloat(maxRating);
}
else if (itemView.PrevRating1 == 0)
{
itemView.Rating = RatingToFloat(rand.Next(0, maxRating));
}
else
{
itemView.Rating = RatingToFloat(rand.Next(
Math.Max(0, RatingToInt(itemView.PrevRating1) - 15),
Math.Min(maxRating, RatingToInt(itemView.PrevRating1) + 15)
));
}
UpdateEmployeeFromView(item, itemView);
}
}
}
dbContext.SaveChanges();
}
finally
{
time = prevTime;
dbContext.ChangeTracker.AutoDetectChangesEnabled = true;
}
}