public async Task <bool> HandleAsync(ModifyItemCommand command, CancellationToken cancellationToken)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
var storeItem = await itemRepository.FindByAsync(command.ItemModify.Id, cancellationToken);
if (storeItem == null)
{
throw new DomainException(new ItemNotFoundReason(command.ItemModify.Id));
}
if (storeItem.IsTemporary)
{
throw new DomainException(new TemporaryItemNotModifyableReason(command.ItemModify.Id));
}
var itemCategoryId = command.ItemModify.ItemCategoryId;
var manufacturerId = command.ItemModify.ManufacturerId;
await itemCategoryValidationService.ValidateAsync(itemCategoryId, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
if (manufacturerId != null)
{
await manufacturerValidationService.ValidateAsync(manufacturerId, cancellationToken);
}
cancellationToken.ThrowIfCancellationRequested();
var availabilities = command.ItemModify.Availabilities;
await availabilityValidationService.ValidateAsync(availabilities, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
storeItem.Modify(command.ItemModify, availabilities);
var availableAtStoreIds = storeItem.Availabilities.Select(av => av.StoreId);
var shoppingListsWithItem = (await shoppingListRepository.FindByAsync(storeItem.Id, cancellationToken))
.Where(list => !availableAtStoreIds.Any(storeId => storeId == list.StoreId))
.ToList();
using var transaction = await transactionGenerator.GenerateAsync(cancellationToken);
await itemRepository.StoreAsync(storeItem, cancellationToken);
foreach (var list in shoppingListsWithItem)
{
cancellationToken.ThrowIfCancellationRequested();
// remove items from all shopping lists where item is not available anymore
list.RemoveItem(storeItem.Id);
await shoppingListRepository.StoreAsync(list, cancellationToken);
}
await transaction.CommitAsync(cancellationToken);
return(true);
}
public async Task <bool> HandleAsync(CreateItemCommand command, CancellationToken cancellationToken)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
var itemCategoryId = command.ItemCreation.ItemCategoryId;
var manufacturerId = command.ItemCreation.ManufacturerId;
await itemCategoryValidationService.ValidateAsync(itemCategoryId, cancellationToken);
if (manufacturerId != null)
{
await manufacturerValidationService.ValidateAsync(manufacturerId, cancellationToken);
}
cancellationToken.ThrowIfCancellationRequested();
var availabilities = command.ItemCreation.Availabilities;
await availabilityValidationService.ValidateAsync(availabilities, cancellationToken);
var storeItem = storeItemFactory.Create(command.ItemCreation);
await itemRepository.StoreAsync(storeItem, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
return(true);
}
public async Task <bool> HandleAsync(UpdateItemCommand command, CancellationToken cancellationToken)
{
if (command is null)
{
throw new System.ArgumentNullException(nameof(command));
}
IStoreItem oldItem = await itemRepository.FindByAsync(command.ItemUpdate.OldId, cancellationToken);
if (oldItem == null)
{
throw new DomainException(new ItemNotFoundReason(command.ItemUpdate.OldId));
}
if (oldItem.IsTemporary)
{
throw new DomainException(new TemporaryItemNotUpdateableReason(command.ItemUpdate.OldId));
}
oldItem.Delete();
var itemCategoryId = command.ItemUpdate.ItemCategoryId;
var manufacturerId = command.ItemUpdate.ManufacturerId;
await itemCategoryValidationService.ValidateAsync(itemCategoryId, cancellationToken);
if (manufacturerId != null)
{
await manufacturerValidationService.ValidateAsync(manufacturerId, cancellationToken);
}
cancellationToken.ThrowIfCancellationRequested();
var availabilities = command.ItemUpdate.Availabilities;
await availabilityValidationService.ValidateAsync(availabilities, cancellationToken);
using ITransaction transaction = await transactionGenerator.GenerateAsync(cancellationToken);
await itemRepository.StoreAsync(oldItem, cancellationToken);
// create new Item
IStoreItem updatedItem = storeItemFactory.Create(command.ItemUpdate, oldItem);
updatedItem = await itemRepository.StoreAsync(updatedItem, cancellationToken);
// change existing item references on shopping lists
await shoppingListUpdateService.ExchangeItemAsync(oldItem.Id, updatedItem, cancellationToken);
await transaction.CommitAsync(cancellationToken);
return(true);
}
public async Task <bool> HandleAsync(MakeTemporaryItemPermanentCommand command, CancellationToken cancellationToken)
{
if (command is null)
{
throw new ArgumentNullException(nameof(command));
}
IStoreItem storeItem = await itemRepository.FindByAsync(command.PermanentItem.Id, cancellationToken);
if (storeItem == null)
{
throw new DomainException(new ItemNotFoundReason(command.PermanentItem.Id));
}
if (!storeItem.IsTemporary)
{
throw new DomainException(new ItemNotTemporaryReason(command.PermanentItem.Id));
}
var itemCategoryId = command.PermanentItem.ItemCategoryId;
var manufacturerId = command.PermanentItem.ManufacturerId;
await itemCategoryValidationService.ValidateAsync(itemCategoryId, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
if (command.PermanentItem.ManufacturerId != null)
{
await manufacturerValidationService.ValidateAsync(manufacturerId, cancellationToken);
}
var availabilities = command.PermanentItem.Availabilities;
await availabilityValidationService.ValidateAsync(availabilities, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
storeItem.MakePermanent(command.PermanentItem, availabilities);
await itemRepository.StoreAsync(storeItem, cancellationToken);
return(true);
}
