public async Task <bool> Handle(ReorderItemRequest request, CancellationToken cancellationToken)
{
var user = await _userAccountRepository.GetUserAccountAsync(request.User);
var item = await _userItemRepository.GetItemAsync(user, request.UserItemId);
if (item == null)
{
_logger.LogInformation($"Could not find item {request.UserItemId}");
return(false);
}
if (item.UserListId == null)
{
_logger.LogInformation($"Item {request.UserItemId} has no list - can only order items on a specific list not the implicit 'all' list");
return(false);
}
UserItem precedingItem = null;
if (request.Model.SortOrderPreviousListItemId != null)
{
precedingItem = await _userItemRepository.GetItemAsync(user, request.Model.SortOrderPreviousListItemId.Value);
if (precedingItem == null)
{
_logger.LogInformation($"Could not find preceding item {request.Model.SortOrderPreviousListItemId}");
return(false);
}
if (item.UserListId != precedingItem.UserListId)
{
_logger.LogInformation($"The list {precedingItem.UserListId} of the preceding item {precedingItem.UserItemId} is different that than list {item.UserListId} of the item to move {item.UserItemId}");
return(false);
}
}
_logger.LogInformation($"Updating order of item {item.UserItemId} [{item.Description}] to come after item {precedingItem?.UserItemId} [{precedingItem?.Description}]");
await _userItemRepository.UpdateOrderAsync(user, item, precedingItem, _userActionsService);
return(true);
}
private async Task <(UserListModel, IEnumerable <UserItem>, int PageNumber, int PageCount)> GetListItemsAsync(UserAccount user, IEnumerable <UserList> userLists, IEnumerable <UserListModel> lists, int listId, ItemSortOrder?sortOrder, int?pageNumber)
{
var selectedList = lists.Single(l => l.UserListId == listId.ToString());
var list = userLists.FirstOrDefault(l => l.UserListId == listId);
if (list != null && sortOrder != null)
{
var savedItemSortOrders = new List <(int, int, int)>();
await _userItemRepository.UpdateOrderAsync(user, list, sortOrder, savedItemSortOrders);
var savedListItemSortOrder = list.ItemSortOrder;
list.ItemSortOrder = sortOrder;
await _userListRepository.SaveAsync(list);
selectedList.ItemSortOrder = sortOrder;
await _userActionsService.AddAsync(user, new ReorderItemsAction(savedItemSortOrders, (list.UserListId, savedListItemSortOrder, sortOrder)));
}
var(userItems, resultPageNumber, pageCount) = await _userItemRepository.GetItemsAsync(user, list, pageNumber : pageNumber);
return(selectedList, userItems, resultPageNumber, pageCount);
}
