public void AddCategoryMapping(string trackerCategory, TorznabCategory torznabCategory, string trackerCategoryDesc = null)
{
_categoryMapping.Add(new CategoryMapping(trackerCategory, trackerCategoryDesc, torznabCategory.ID));
if (!_categories.Contains(torznabCategory))
{
_categories.Add(torznabCategory);
}
// add 1:1 categories
if (trackerCategoryDesc != null && trackerCategory != null)
{
//TODO convert to int.TryParse() to avoid using throw as flow control
try
{
var trackerCategoryInt = int.Parse(trackerCategory);
var customCat = new TorznabCategory(trackerCategoryInt + 100000, trackerCategoryDesc);
if (!_categories.Contains(customCat))
{
_categories.Add(customCat);
}
}
catch (FormatException)
{
// trackerCategory is not an integer, continue
}
}
}
public void AddCategoryMapping(string trackerCategory, TorznabCategory torznabCategory, string trackerCategoryDesc = null)
{
_categoryMapping.Add(new CategoryMapping(trackerCategory, trackerCategoryDesc, torznabCategory.ID));
AddTorznabCategoryTree(torznabCategory);
if (trackerCategoryDesc == null)
{
return;
}
// create custom cats (1:1 categories) if trackerCategoryDesc is defined
// - if trackerCategory is "integer" we use that number to generate custom category id
// - if trackerCategory is "string" we compute a hash to generate fixed integer id for the custom category
// the hash is not perfect but it should work in most cases. we can't use sequential numbers because
// categories are updated frequently and the id must be fixed to work in 3rd party apps
if (!int.TryParse(trackerCategory, out var trackerCategoryInt))
{
var hashed = SHA1.Create().ComputeHash(Encoding.UTF8.GetBytes(trackerCategory));
trackerCategoryInt = BitConverter.ToUInt16(hashed, 0); // id between 0 and 65535 < 100000
}
var customCat = new TorznabCategory(trackerCategoryInt + 100000, trackerCategoryDesc);
_categoryMapping.Add(new CategoryMapping(trackerCategory, trackerCategoryDesc, customCat.ID));
AddTorznabCategoryTree(customCat);
}
/// <summary>
/// If there are parent categories in TorznabQuery.Categories the children categories are added
/// </summary>
/// <param name="query">Search query</param>
/// <param name="mapChildrenCatsToParent">If enabled, children categories will add the parent category to the list</param>
/// <returns></returns>
public List <int> ExpandTorznabQueryCategories(TorznabQuery query, bool mapChildrenCatsToParent = false)
{
var expandedQueryCats = new List <int>();
foreach (var queryCategory in query.Categories)
{
expandedQueryCats.Add(queryCategory);
if (queryCategory >= 100000)
{
continue;
}
var parentCat = _torznabCategoryTree.FirstOrDefault(c => c.ID == queryCategory);
if (parentCat != null)
{
// if it's parent cat we add all the children
expandedQueryCats.AddRange(parentCat.SubCategories.Select(c => c.ID));
}
else if (mapChildrenCatsToParent)
{
// if it's child cat and mapChildrenCatsToParent is enabled we add the parent
var queryCategoryTorznab = new TorznabCategory(queryCategory, "");
parentCat = _torznabCategoryTree.FirstOrDefault(c => c.Contains(queryCategoryTorznab));
if (parentCat != null)
{
expandedQueryCats.Add(parentCat.ID);
}
}
}
return(expandedQueryCats.Distinct().ToList());
}
public bool Contains(TorznabCategory cat)
{
if (this == cat)
{
return(true);
}
if (SubCategories.Contains(cat))
{
return(true);
}
return(false);
}
private void AddTorznabCategoryTree(TorznabCategory torznabCategory)
{
// build the category tree
if (TorznabCatType.ParentCats.Contains(torznabCategory))
{
// parent cat
if (!_torznabCategoryTree.Contains(torznabCategory))
{
_torznabCategoryTree.Add(torznabCategory.CopyWithoutSubCategories());
}
}
else
{
// child or custom cat
var parentCat = TorznabCatType.ParentCats.FirstOrDefault(c => c.Contains(torznabCategory));
if (parentCat != null)
{
// child cat
var nodeCat = _torznabCategoryTree.FirstOrDefault(c => c.Equals(parentCat));
if (nodeCat != null)
{
// parent cat already exists
if (!nodeCat.Contains(torznabCategory))
{
nodeCat.SubCategories.Add(torznabCategory);
}
}
else
{
// create parent cat and add child
nodeCat = parentCat.CopyWithoutSubCategories();
nodeCat.SubCategories.Add(torznabCategory);
_torznabCategoryTree.Add(nodeCat);
}
}
else
{
// custom cat
_torznabCategoryTree.Add(torznabCategory);
}
}
}
public List <TorznabCategory> GetTorznabCategoryTree(bool sorted = false)
{
if (!sorted)
{
return(_torznabCategoryTree);
}
// we build a new tree, original is unsorted
// first torznab categories ordered by id and then custom cats ordered by name
var sortedTree = _torznabCategoryTree
.Select(c =>
{
var sortedSubCats = c.SubCategories.OrderBy(x => x.ID);
var newCat = new TorznabCategory(c.ID, c.Name);
newCat.SubCategories.AddRange(sortedSubCats);
return(newCat);
}).OrderBy(x => x.ID >= 100000 ? "zzz" + x.Name : x.ID.ToString()).ToList();
return(sortedTree);
}
