private async Task <List <Ingredient> > GetExistingIngredientsAsync(InitialNewShoppingListIngredientsDto modelDto)
{
IEnumerable <string> insertedIngredientNames = modelDto.Ingredients.Select(x => x.Name.ToLower());
return(await _context.Ingredient
.Where(x => insertedIngredientNames.Contains(x.Name.ToLower()))
.ToListAsync(modelDto.CancellationToken));
}
public async Task <ICollection <ShoppingList> > InitialNewShoppingListIngredients(InitialNewShoppingListIngredientsDto modelDto)
{
List <ShoppingList> result = new List <ShoppingList>();
List <Ingredient> existingIngredients = await GetExistingIngredientsAsync(modelDto);
foreach (ShoppingListIngredientListItemDto newShoppingListIngredient in modelDto.Ingredients)
{
Ingredient insertedIngredient =
existingIngredients.FirstOrDefault(x => x.Name.ToLower() == newShoppingListIngredient.Name.ToLower());
if (insertedIngredient == null)
{
insertedIngredient = (await _context.Ingredient.AddAsync(new Ingredient
{
Name = newShoppingListIngredient.Name
}, modelDto.CancellationToken)).Entity;
}
result.Add(new ShoppingList
{
Ingredient = insertedIngredient,
Amount = newShoppingListIngredient.Amount
});
}
return(result.GroupBy(x => x.Ingredient)
.Select(x => new ShoppingList
{
Ingredient = x.Key,
Amount = x.Select(y => y.Amount).ToArray().Sum(),
}).ToList());
}
