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jellyfin/MediaBrowser.Api/UserLibrary/BaseItemsByNameService.cs

429 lines
15 KiB

using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Querying;
using ServiceStack;
using System;
using System.Collections.Generic;
using System.Linq;
namespace MediaBrowser.Api.UserLibrary
{
/// <summary>
/// Class BaseItemsByNameService
/// </summary>
/// <typeparam name="TItemType">The type of the T item type.</typeparam>
public abstract class BaseItemsByNameService<TItemType> : BaseApiService
where TItemType : BaseItem, IItemByName
{
/// <summary>
/// The _user manager
/// </summary>
protected readonly IUserManager UserManager;
/// <summary>
/// The library manager
/// </summary>
protected readonly ILibraryManager LibraryManager;
protected readonly IUserDataManager UserDataRepository;
protected readonly IItemRepository ItemRepository;
protected IDtoService DtoService { get; private set; }
/// <summary>
/// Initializes a new instance of the <see cref="BaseItemsByNameService{TItemType}" /> class.
/// </summary>
/// <param name="userManager">The user manager.</param>
/// <param name="libraryManager">The library manager.</param>
/// <param name="userDataRepository">The user data repository.</param>
/// <param name="itemRepository">The item repository.</param>
/// <param name="dtoService">The dto service.</param>
protected BaseItemsByNameService(IUserManager userManager, ILibraryManager libraryManager, IUserDataManager userDataRepository, IItemRepository itemRepository, IDtoService dtoService)
{
UserManager = userManager;
LibraryManager = libraryManager;
UserDataRepository = userDataRepository;
ItemRepository = itemRepository;
DtoService = dtoService;
}
protected BaseItem GetParentItem(GetItemsByName request)
{
BaseItem parentItem;
if (!string.IsNullOrWhiteSpace(request.UserId))
{
var user = UserManager.GetUserById(request.UserId);
parentItem = string.IsNullOrEmpty(request.ParentId) ? user.RootFolder : LibraryManager.GetItemById(request.ParentId);
}
else
{
parentItem = string.IsNullOrEmpty(request.ParentId) ? LibraryManager.RootFolder : LibraryManager.GetItemById(request.ParentId);
}
return parentItem;
}
protected string GetParentItemViewType(GetItemsByName request)
{
var parent = GetParentItem(request);
var collectionFolder = parent as ICollectionFolder;
if (collectionFolder != null)
{
return collectionFolder.CollectionType;
}
var view = parent as UserView;
if (view != null)
{
return view.ViewType;
}
return null;
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>Task{ItemsResult}.</returns>
protected ItemsResult GetResult(GetItemsByName request)
{
var dtoOptions = GetDtoOptions(request);
User user = null;
BaseItem parentItem;
List<BaseItem> libraryItems = null;
if (!string.IsNullOrWhiteSpace(request.UserId))
{
user = UserManager.GetUserById(request.UserId);
parentItem = string.IsNullOrEmpty(request.ParentId) ? user.RootFolder : LibraryManager.GetItemById(request.ParentId);
if (RequiresLibraryItems(request, dtoOptions))
{
libraryItems = user.RootFolder.GetRecursiveChildren(user).ToList();
}
}
else
{
parentItem = string.IsNullOrEmpty(request.ParentId) ? LibraryManager.RootFolder : LibraryManager.GetItemById(request.ParentId);
if (RequiresLibraryItems(request, dtoOptions))
{
libraryItems = LibraryManager.RootFolder.GetRecursiveChildren().ToList();
}
}
IEnumerable<BaseItem> items;
var excludeItemTypes = request.GetExcludeItemTypes();
var includeItemTypes = request.GetIncludeItemTypes();
var mediaTypes = request.GetMediaTypes();
var query = new InternalItemsQuery(user)
{
ExcludeItemTypes = excludeItemTypes,
IncludeItemTypes = includeItemTypes,
MediaTypes = mediaTypes
};
Func<BaseItem, bool> filter = i => FilterItem(request, i, excludeItemTypes, includeItemTypes, mediaTypes);
if (parentItem.IsFolder)
{
var folder = (Folder)parentItem;
if (!string.IsNullOrWhiteSpace(request.UserId))
{
items = request.Recursive ?
folder.GetRecursiveChildren(user, query) :
folder.GetChildren(user, true).Where(filter);
}
else
{
items = request.Recursive ?
folder.GetRecursiveChildren(filter) :
folder.Children.Where(filter);
}
}
else
{
items = new[] { parentItem }.Where(filter);
}
var extractedItems = GetAllItems(request, items);
var filteredItems = FilterItems(request, extractedItems, user);
filteredItems = FilterByLibraryItems(request, filteredItems.Cast<IItemByName>(), user, libraryItems).Cast<BaseItem>();
filteredItems = LibraryManager.Sort(filteredItems, user, request.GetOrderBy(), request.SortOrder ?? SortOrder.Ascending);
var ibnItemsArray = filteredItems.ToList();
IEnumerable<BaseItem> ibnItems = ibnItemsArray;
var result = new ItemsResult
{
TotalRecordCount = ibnItemsArray.Count
};
if (request.StartIndex.HasValue || request.Limit.HasValue)
{
if (request.StartIndex.HasValue)
{
ibnItems = ibnItems.Skip(request.StartIndex.Value);
}
if (request.Limit.HasValue)
{
ibnItems = ibnItems.Take(request.Limit.Value);
}
}
IEnumerable<Tuple<BaseItem, List<BaseItem>>> tuples;
if (dtoOptions.Fields.Contains(ItemFields.ItemCounts))
{
tuples = ibnItems.Select(i => new Tuple<BaseItem, List<BaseItem>>(i, ((IItemByName)i).GetTaggedItems(libraryItems).ToList()));
}
else
{
tuples = ibnItems.Select(i => new Tuple<BaseItem, List<BaseItem>>(i, new List<BaseItem>()));
}
var dtos = tuples.Select(i => DtoService.GetItemByNameDto(i.Item1, dtoOptions, i.Item2, user));
result.Items = dtos.Where(i => i != null).ToArray();
return result;
}
private bool RequiresLibraryItems(GetItemsByName request, DtoOptions options)
{
var filters = request.GetFilters().ToList();
if (filters.Contains(ItemFilter.IsPlayed))
{
return true;
}
if (filters.Contains(ItemFilter.IsUnplayed))
{
return true;
}
if (request.IsPlayed.HasValue)
{
return true;
}
return options.Fields.Contains(ItemFields.ItemCounts);
}
private IEnumerable<IItemByName> FilterByLibraryItems(GetItemsByName request, IEnumerable<IItemByName> items, User user, IEnumerable<BaseItem> libraryItems)
{
var filters = request.GetFilters().ToList();
if (filters.Contains(ItemFilter.IsPlayed))
{
items = items.Where(i => i.GetTaggedItems(libraryItems).All(l => l.IsPlayed(user)));
}
if (filters.Contains(ItemFilter.IsUnplayed))
{
items = items.Where(i => i.GetTaggedItems(libraryItems).All(l => l.IsUnplayed(user)));
}
if (request.IsPlayed.HasValue)
{
var val = request.IsPlayed.Value;
items = items.Where(i => i.GetTaggedItems(libraryItems).All(l => l.IsPlayed(user)) == val);
}
return items;
}
/// <summary>
/// Filters the items.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <param name="user">The user.</param>
/// <returns>IEnumerable{`0}.</returns>
private IEnumerable<BaseItem> FilterItems(GetItemsByName request, IEnumerable<BaseItem> items, User user)
{
if (!string.IsNullOrEmpty(request.NameStartsWithOrGreater))
{
items = items.Where(i => string.Compare(request.NameStartsWithOrGreater, i.SortName, StringComparison.CurrentCultureIgnoreCase) < 1);
}
if (!string.IsNullOrEmpty(request.NameStartsWith))
{
items = items.Where(i => string.Compare(request.NameStartsWith, i.SortName.Substring(0, 1), StringComparison.CurrentCultureIgnoreCase) == 0);
}
if (!string.IsNullOrEmpty(request.NameLessThan))
{
items = items.Where(i => string.Compare(request.NameLessThan, i.SortName, StringComparison.CurrentCultureIgnoreCase) == 1);
}
var imageTypes = request.GetImageTypes().ToList();
if (imageTypes.Count > 0)
{
items = items.Where(item => imageTypes.Any(item.HasImage));
}
var filters = request.GetFilters().ToList();
if (filters.Contains(ItemFilter.Dislikes))
{
items = items.Where(i =>
{
var userdata = UserDataRepository.GetUserData(user, i);
return userdata != null && userdata.Likes.HasValue && !userdata.Likes.Value;
});
}
if (filters.Contains(ItemFilter.Likes))
{
items = items.Where(i =>
{
var userdata = UserDataRepository.GetUserData(user, i);
return userdata != null && userdata.Likes.HasValue && userdata.Likes.Value;
});
}
if (filters.Contains(ItemFilter.IsFavoriteOrLikes))
{
items = items.Where(i =>
{
var userdata = UserDataRepository.GetUserData(user, i);
var likes = userdata.Likes ?? false;
var favorite = userdata.IsFavorite;
return likes || favorite;
});
}
if (filters.Contains(ItemFilter.IsFavorite))
{
items = items.Where(i =>
{
var userdata = UserDataRepository.GetUserData(user, i);
return userdata != null && userdata.IsFavorite;
});
}
// Avoid implicitly captured closure
var currentRequest = request;
return items.Where(i => ApplyAdditionalFilters(currentRequest, i, user, false));
}
private bool ApplyAdditionalFilters(BaseItemsRequest request, BaseItem i, User user, bool isPreFiltered)
{
if (!isPreFiltered)
{
// Apply tag filter
var tags = request.GetTags();
if (tags.Length > 0)
{
if (!tags.Any(v => i.Tags.Contains(v, StringComparer.OrdinalIgnoreCase)))
{
return false;
}
}
// Apply official rating filter
var officialRatings = request.GetOfficialRatings();
if (officialRatings.Length > 0 && !officialRatings.Contains(i.OfficialRating ?? string.Empty))
{
return false;
}
// Apply genre filter
var genres = request.GetGenres();
if (genres.Length > 0 && !genres.Any(v => i.Genres.Contains(v, StringComparer.OrdinalIgnoreCase)))
{
return false;
}
// Apply year filter
var years = request.GetYears();
if (years.Length > 0 && !(i.ProductionYear.HasValue && years.Contains(i.ProductionYear.Value)))
{
return false;
}
}
return true;
}
/// <summary>
/// Filters the items.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="f">The f.</param>
/// <param name="excludeItemTypes">The exclude item types.</param>
/// <param name="includeItemTypes">The include item types.</param>
/// <param name="mediaTypes">The media types.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
protected bool FilterItem(GetItemsByName request, BaseItem f, string[] excludeItemTypes, string[] includeItemTypes, string[] mediaTypes)
{
// Exclude item types
if (excludeItemTypes.Length > 0)
{
if (excludeItemTypes.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase))
{
return false;
}
}
// Include item types
if (includeItemTypes.Length > 0)
{
if (!includeItemTypes.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase))
{
return false;
}
}
// Include MediaTypes
if (mediaTypes.Length > 0)
{
if (!mediaTypes.Contains(f.MediaType ?? string.Empty, StringComparer.OrdinalIgnoreCase))
{
return false;
}
}
return true;
}
/// <summary>
/// Gets all items.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <returns>IEnumerable{Task{`0}}.</returns>
protected abstract IEnumerable<BaseItem> GetAllItems(GetItemsByName request, IEnumerable<BaseItem> items);
}
/// <summary>
/// Class GetItemsByName
/// </summary>
public class GetItemsByName : BaseItemsRequest, IReturn<ItemsResult>
{
public GetItemsByName()
{
Recursive = true;
}
}
}