public override Task Initialize(SelectTagsParameter parameter)
{
workspaceId = parameter.WorkspaceId;
defaultResult = parameter.TagIds;
selectedTagIds.AddRange(parameter.TagIds);
creationEnabled = parameter.CreationEnabled;
var filteredTags = FilterText
.StartWith(string.Empty)
.Select(text => text?.Trim() ?? string.Empty)
.SelectMany(getSuggestions)
.Select(selectableTagNameViewModel)
.ShareReplay();
Tags = filteredTags
.AsDriver(ImmutableList <SelectableTagBaseViewModel> .Empty, schedulerProvider);
IsEmpty = filteredTags
.Select(tags => tags.Any())
.Invert()
.DistinctUntilChanged()
.AsDriver(schedulerProvider);
return(base.Initialize(parameter));
IImmutableList <SelectableTagBaseViewModel> selectableTagNameViewModel((string, IEnumerable <AutocompleteSuggestion>) pair)
{
var queryText = pair.Item1;
var suggestions = pair.Item2;
var tagSuggestionInWorkspace = suggestions
.Cast <TagSuggestion>()
.Where(s => s.WorkspaceId == workspaceId);
var suggestCreation = creationEnabled && !string.IsNullOrEmpty(queryText) &&
tagSuggestionInWorkspace.None(tag
=> tag.Name.IsSameCaseInsensitiveTrimedTextAs(queryText)) &&
queryText.IsAllowedTagByteSize();
var selectableViewModels = tagSuggestionInWorkspace
.OrderByDescending(tag => defaultResult.Contains(tag.TagId))
.ThenBy(tag => tag.Name)
.Select(toSelectableTagViewModel);
if (suggestCreation)
{
return(selectableViewModels
.Prepend(new SelectableTagCreationViewModel(queryText, workspaceId))
.ToImmutableList());
}
return(selectableViewModels.ToImmutableList());
}
}
public override Task Initialize(SelectTagsParameter parameter)
{
workspaceId = parameter.WorkspaceId;
defaultResult = parameter.TagIds;
selectedTagIds.AddRange(parameter.TagIds);
creationEnabled = parameter.CreationEnabled;
var filteredTags = FilterText
.StartWith(string.Empty)
.Select(text => text?.Trim() ?? string.Empty)
.SelectMany(getSuggestions)
.Select(convertToSelectableTagNameViewModel)
.ShareReplay();
Tags = filteredTags
.AsDriver(ImmutableList <SelectableTagBaseViewModel> .Empty, schedulerProvider);
IsEmpty = filteredTags
.Select(tags => tags.Any())
.Invert()
.DistinctUntilChanged()
.AsDriver(schedulerProvider);
return(base.Initialize(parameter));
IImmutableList <SelectableTagBaseViewModel> convertToSelectableTagNameViewModel(TagsFilteringContext context)
{
var tagSuggestionInWorkspace = context.TagSuggestions
.Where(s => s.WorkspaceId == workspaceId);
var shouldSuggestCreation = creationEnabled &&
!string.IsNullOrEmpty(context.Query) &&
tagSuggestionInWorkspace.None(tag => tag.Name.IsSameCaseInsensitiveTrimedTextAs(context.Query)) &&
context.Query.IsAllowedTagByteSize();
return(tagSuggestionInWorkspace
.OrderByDescending(tag => defaultResult.Contains(tag.TagId))
.ThenBy(tag => tag.Name)
.Select(toSelectableTagViewModel)
.PrependIf(shouldSuggestCreation, () => new SelectableTagCreationViewModel(context.Query, workspaceId))
.ToImmutableList());
}
}
