public void CreateCategory(string category)
{
if (category == "Uncategorized")
{
throw new ArgumentException("Reserved category name");
}
_tagNamesByCategory.Add(category, new HashSet <string>());
CategoriesChanged?.Invoke(this, EventArgs.Empty);
}
public void RemoveCategory(string category)
{
// TODO - Don't even let the user attempt to remove the uncategorized category...
if (category == "Uncategorized")
{
throw new ArgumentException("Reserved category name");
}
// TODO - Are you sure dialog if category contains tags/videos
foreach (var tag in GetTags(category))
{
tag.Category = null;
_uncategorizedTagNames.Add(tag.Name);
}
_tagNamesByCategory.Remove(category);
CategoriesChanged?.Invoke(this, EventArgs.Empty);
}
//-------------------------------------------------------------------------
protected virtual void OnCategoriesChanged()
{
CategoriesChanged?.Invoke(this, EventArgs.Empty);
}