public static ShoeTrackerDbContext WithShoe(this ShoeTrackerDbContext context,
string name,
string userId,
DateTime? firstUsedDate=null,
DateTime? lastUsedDate=null,
decimal? maximumDistance=null,
string brand=null)
{
var maxShoeId = 1L;
if (context.Shoes.Any())
{
maxShoeId = context.Shoes.Max(s => s.ShoeId);
}
var shoe = new Shoe
{
CreatedAt = DateTime.Now,
FirstUsed = firstUsedDate.GetValueOrDefault(DateTime.Today),
LastUsed = lastUsedDate,
MaximumDistance = maximumDistance.GetValueOrDefault(400),
Name = name,
Brand = brand ?? "default brand",
Workouts = new List<Workout>(),
ShoeId = maxShoeId+1,
UserId = userId
};
context.Shoes.Attach(shoe);
return context;
}
private static ShoeDetailViewModel MapShoeToViewModel(Shoe s)
{
var hasWorkouts = s.Workouts != null && s.Workouts.Any();
decimal? distanceUsed = 0;
decimal? percentRemaining = 0;
DateTime? expirationDate = null;
if (hasWorkouts)
{
distanceUsed = s.Workouts.Sum(w => w.Distance);
percentRemaining = CalculatePercenRemaining(s);
expirationDate = s.LastUsed.HasValue ? null : CalculateExpirationDate(s.FirstUsed, s.MaximumDistance, distanceUsed, percentRemaining);
}
return new ShoeDetailViewModel
{
ShoeId = s.ShoeId,
Name = s.Name,
Brand = s.Brand,
Url = s.Url,
FirstUsed = s.FirstUsed,
LastUsed = s.LastUsed,
DistanceUsed = distanceUsed,
CanDelete = !hasWorkouts,
PercentRemaining = percentRemaining * 100,
ExpirationDate = expirationDate
};
}
public ViewResult Create()
{
var shoe = new Shoe
{
UserId = this.GetUserId(),
FirstUsed = DateTime.Today
};
return View(shoe);
}
private static decimal? CalculatePercenRemaining(Shoe s)
{
var percentRemaining = s.MaximumDistance == 0 ? 0 : (s.Workouts.Sum(w => w.Distance) / s.MaximumDistance);
return percentRemaining;
}
private void AssertShoesWithWorkoutsCannotBeDeleted(ShoeDetailViewModel viewModel, Shoe shoe)
{
Assert.That(viewModel.CanDelete, Is.EqualTo(!shoe.Workouts.Any()));
}
private void AssertShoeName(ShoeDetailViewModel viewModel, Shoe shoe)
{
Assert.That(viewModel.Name,Is.EqualTo(shoe.Name));
}
private void AssertPercentRemainigIsRatioOfDistanceToWorkouts(ShoeDetailViewModel viewModel, Shoe shoe)
{
if (shoe.Workouts.Any())
{
var expectedPercent = shoe.Workouts.Sum(w => w.Distance)/shoe.MaximumDistance * 100;
Assert.That(viewModel.PercentRemaining, Is.EqualTo(expectedPercent));
}
else
{
Assert.That(viewModel.PercentRemaining, Is.EqualTo(0));
}
}
private void AssertLastUsed(ShoeDetailViewModel viewModel, Shoe shoe)
{
Assert.That(viewModel.LastUsed, Is.EqualTo(shoe.LastUsed));
}
private void AssertExpirationDateIsEmptyWhenTheShoeIsNoLongerUsed(ShoeDetailViewModel viewModel, Shoe matchingShoe)
{
if (matchingShoe.LastUsed.HasValue)
{
Assert.That(viewModel.ExpirationDate,Is.Null);
}
}
private void AssertDistanceUsedIsSumOfWorkouts(ShoeDetailViewModel viewModel, Shoe shoe)
{
if (shoe.Workouts.Any())
{
Assert.That(viewModel.DistanceUsed, Is.EqualTo(shoe.Workouts.Sum(w => w.Distance)));
}
else
{
Assert.That(viewModel.DistanceUsed, Is.EqualTo(0));
}
}
private void AssertCurrentUser(Shoe matchingShoe)
{
Assert.That(matchingShoe.UserId,Is.EqualTo(_currentUserId));
}
private static void MapShoeData(Shoe shoe, Shoe existingEntry)
{
existingEntry.Name = shoe.Name;
existingEntry.Brand = shoe.Brand;
existingEntry.FirstUsed = shoe.FirstUsed;
existingEntry.CreatedAt = shoe.CreatedAt;
existingEntry.MaximumDistance = shoe.MaximumDistance;
existingEntry.LastUsed = shoe.LastUsed;
existingEntry.Url = shoe.Url;
}
