public async Task <Guid> CreateUserAsync(string name)
{
var user = _virtualPetsDbContext.Users.Add(new User(name));
await _virtualPetsDbContext.SaveChangesAsync().ConfigureAwait(false);
return(user.Entity.Id);
}
public async Task RaiseHunger(Guid animalId)
{
var animal = await _virtualPetsDbContext.Animals.FindAsync(animalId).ConfigureAwait(false);
animal.RaiseHunger();
await _virtualPetsDbContext.SaveChangesAsync();
}
public async Task FeedAnimalAsync(Guid userId, Guid animalId)
{
var animal = await _virtualPetsDbContext.Animals.FindAsync(animalId).ConfigureAwait(false);
ValidationHelper.ValidateNullAndOwnerOrThrow(userId, animal);
animal.Feed();
await _virtualPetsDbContext.SaveChangesAsync();
}
public async Task <Guid> AdoptAnimalAsync(Guid userId, string animalName, AnimalType animalType)
{
if (await _virtualPetsDbContext.Users.FirstOrDefaultAsync(x => x.Id == userId).ConfigureAwait(false) == null)
{
throw new ArgumentException("The provided user does not exist");
}
Animal newAnimal;
switch (animalType)
{
case AnimalType.Dog:
newAnimal = new Dog(userId, animalName);
break;
case AnimalType.Cat:
newAnimal = new Cat(userId, animalName);
break;
case AnimalType.Bear:
newAnimal = new Bear(userId, animalName);
break;
case AnimalType.Parrot:
newAnimal = new Parrot(userId, animalName);
break;
default:
throw new ArgumentException("We don't sell that kind of animal");
}
await _virtualPetsDbContext.Animals.AddAsync(newAnimal).ConfigureAwait(false);
await _virtualPetsDbContext.SaveChangesAsync().ConfigureAwait(false);
return(newAnimal.Id);
}