private ItemsResult GetSimilarItemsResult(BaseGetSimilarItemsFromItem request, Func <BaseItem, List <PersonInfo>, List <PersonInfo>, BaseItem, int> getSimilarityScore)
{
var user = !string.IsNullOrWhiteSpace(request.UserId) ? _userManager.GetUserById(request.UserId) : null;
var item = string.IsNullOrEmpty(request.Id) ?
(!string.IsNullOrWhiteSpace(request.UserId) ? user.RootFolder :
_libraryManager.RootFolder) : _libraryManager.GetItemById(request.Id);
var inputItems = _libraryManager.GetArtists(user.RootFolder.GetRecursiveChildren(user, i => i is IHasArtist).OfType <IHasArtist>());
var list = inputItems.ToList();
var items = SimilarItemsHelper.GetSimilaritems(item, _libraryManager, list, getSimilarityScore).ToList();
IEnumerable <BaseItem> returnItems = items;
if (request.Limit.HasValue)
{
returnItems = returnItems.Take(request.Limit.Value);
}
var dtoOptions = GetDtoOptions(request);
var result = new ItemsResult
{
Items = _dtoService.GetBaseItemDtos(returnItems, dtoOptions, user).ToArray(),
TotalRecordCount = items.Count
};
return(result);
}
private async Task <ItemsResult> GetSimilarItemsResult(BaseGetSimilarItemsFromItem request, Func <BaseItem, List <PersonInfo>, List <PersonInfo>, BaseItem, int> getSimilarityScore)
{
var user = !string.IsNullOrWhiteSpace(request.UserId) ? _userManager.GetUserById(request.UserId) : null;
var item = string.IsNullOrEmpty(request.Id) ?
(!string.IsNullOrWhiteSpace(request.UserId) ? user.RootFolder :
_libraryManager.RootFolder) : _libraryManager.GetItemById(request.Id);
var query = new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { typeof(Movie).Name }
};
if (user == null || user.Configuration.IncludeTrailersInSuggestions)
{
var includeList = query.IncludeItemTypes.ToList();
includeList.Add(typeof(Trailer).Name);
query.IncludeItemTypes = includeList.ToArray();
}
var parentIds = new string[] { };
var list = _libraryManager.GetItemList(query, parentIds)
.DistinctBy(i => i.GetProviderId(MetadataProviders.Imdb) ?? Guid.NewGuid().ToString("N"))
.ToList();
if (item is Video)
{
var imdbId = item.GetProviderId(MetadataProviders.Imdb);
// Use imdb id to try to filter duplicates of the same item
if (!string.IsNullOrWhiteSpace(imdbId))
{
list = list
.Where(i => !string.Equals(imdbId, i.GetProviderId(MetadataProviders.Imdb), StringComparison.OrdinalIgnoreCase))
.ToList();
}
}
var items = SimilarItemsHelper.GetSimilaritems(item, _libraryManager, list, getSimilarityScore).ToList();
IEnumerable <BaseItem> returnItems = items;
if (request.Limit.HasValue)
{
returnItems = returnItems.Take(request.Limit.Value);
}
var dtoOptions = GetDtoOptions(request);
var result = new ItemsResult
{
Items = _dtoService.GetBaseItemDtos(returnItems, dtoOptions, user).ToArray(),
TotalRecordCount = items.Count
};
return(result);
}
private async Task <ItemsResult> GetSimilarItemsResult(BaseGetSimilarItemsFromItem request, Func <BaseItem, bool> includeInSearch, Func <BaseItem, BaseItem, int> getSimilarityScore)
{
var user = request.UserId.HasValue ? _userManager.GetUserById(request.UserId.Value) : null;
var item = string.IsNullOrEmpty(request.Id) ?
(request.UserId.HasValue ? user.RootFolder :
_libraryManager.RootFolder) : _libraryManager.GetItemById(request.Id);
var fields = request.GetItemFields().ToList();
var inputItems = user == null
? _libraryManager.RootFolder.GetRecursiveChildren().Where(i => i.Id != item.Id)
: user.RootFolder.GetRecursiveChildren(user).Where(i => i.Id != item.Id);
inputItems = inputItems.Where(includeInSearch);
var list = inputItems.ToList();
if (item is Movie && user != null && user.Configuration.IncludeTrailersInSuggestions)
{
var trailerResult = await _channelManager.GetAllMediaInternal(new AllChannelMediaQuery
{
ContentTypes = new[] { ChannelMediaContentType.MovieExtra },
ExtraTypes = new[] { ExtraType.Trailer },
UserId = user.Id.ToString("N")
}, CancellationToken.None).ConfigureAwait(false);
var newTrailers = trailerResult.Items;
list.AddRange(newTrailers);
list = list
.DistinctBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
.DistinctBy(i => i.GetProviderId(MetadataProviders.Imdb) ?? Guid.NewGuid().ToString(), StringComparer.OrdinalIgnoreCase)
.ToList();
}
var items = SimilarItemsHelper.GetSimilaritems(item, list, getSimilarityScore).ToList();
IEnumerable <BaseItem> returnItems = items;
if (request.Limit.HasValue)
{
returnItems = returnItems.Take(request.Limit.Value);
}
var result = new ItemsResult
{
Items = returnItems.Select(i => _dtoService.GetBaseItemDto(i, fields, user)).ToArray(),
TotalRecordCount = items.Count
};
return(result);
}
private IEnumerable <RecommendationDto> GetSimilarTo(User user, List <BaseItem> allMovies, IEnumerable <BaseItem> baselineItems, int itemLimit, DtoOptions dtoOptions, RecommendationType type)
{
foreach (var item in baselineItems)
{
var similar = SimilarItemsHelper
.GetSimilaritems(item, _libraryManager, allMovies, SimilarItemsHelper.GetSimiliarityScore)
.Take(itemLimit)
.ToList();
if (similar.Count > 0)
{
yield return(new RecommendationDto
{
BaselineItemName = item.Name,
CategoryId = item.Id.ToString("N"),
RecommendationType = type,
Items = _dtoService.GetBaseItemDtos(similar, dtoOptions, user).ToArray()
});
}
}
}
private IEnumerable<RecommendationDto> GetSimilarTo(User user, List<Movie> allMovies, IEnumerable<Movie> baselineItems, int itemLimit, List<ItemFields> fields, RecommendationType type)
{
var userId = user.Id;
foreach (var item in baselineItems)
{
var similar = SimilarItemsHelper
.GetSimilaritems(item, allMovies, SimilarItemsHelper.GetSimiliarityScore)
.Take(itemLimit)
.ToList();
if (similar.Count > 0)
{
yield return new RecommendationDto
{
BaselineItemName = item.Name,
CategoryId = item.Id.ToString("N"),
RecommendationType = type,
Items = similar.Select(i => _dtoService.GetBaseItemDto(i, fields, user)).ToArray()
};
}
}
}
private async Task <ItemsResult> GetSimilarItemsResult(BaseGetSimilarItemsFromItem request, Func <BaseItem, bool> includeInSearch, Func <BaseItem, BaseItem, int> getSimilarityScore)
{
var user = !string.IsNullOrWhiteSpace(request.UserId) ? _userManager.GetUserById(request.UserId) : null;
var item = string.IsNullOrEmpty(request.Id) ?
(!string.IsNullOrWhiteSpace(request.UserId) ? user.RootFolder :
_libraryManager.RootFolder) : _libraryManager.GetItemById(request.Id);
Func <BaseItem, bool> filter = i => i.Id != item.Id && includeInSearch(i);
var inputItems = user == null
? _libraryManager.RootFolder.GetRecursiveChildren(filter)
: user.RootFolder.GetRecursiveChildren(user, filter);
var list = inputItems.ToList();
if (item is Movie && user != null && user.Configuration.IncludeTrailersInSuggestions)
{
var trailerResult = await _channelManager.GetAllMediaInternal(new AllChannelMediaQuery
{
ContentTypes = new[] { ChannelMediaContentType.MovieExtra },
ExtraTypes = new[] { ExtraType.Trailer },
UserId = user.Id.ToString("N")
}, CancellationToken.None).ConfigureAwait(false);
var newTrailers = trailerResult.Items;
list.AddRange(newTrailers);
list = list
.DistinctBy(i => i.Name, StringComparer.OrdinalIgnoreCase)
.DistinctBy(i => i.GetProviderId(MetadataProviders.Imdb) ?? Guid.NewGuid().ToString(), StringComparer.OrdinalIgnoreCase)
.ToList();
}
if (item is Video)
{
var imdbId = item.GetProviderId(MetadataProviders.Imdb);
// Use imdb id to try to filter duplicates of the same item
if (!string.IsNullOrWhiteSpace(imdbId))
{
list = list
.Where(i => !string.Equals(imdbId, i.GetProviderId(MetadataProviders.Imdb), StringComparison.OrdinalIgnoreCase))
.ToList();
}
}
var items = SimilarItemsHelper.GetSimilaritems(item, list, getSimilarityScore).ToList();
IEnumerable <BaseItem> returnItems = items;
if (request.Limit.HasValue)
{
returnItems = returnItems.Take(request.Limit.Value);
}
var dtoOptions = GetDtoOptions(request);
var result = new ItemsResult
{
Items = _dtoService.GetBaseItemDtos(returnItems, dtoOptions, user).ToArray(),
TotalRecordCount = items.Count
};
return(result);
}
