jellyfin/MediaBrowser.Api/UserLibrary/BaseItemsByNameService.cs
2017-05-22 00:54:02 -04:00

517 lines
19 KiB
C#

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 System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Services;
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; }
protected IAuthorizationContext AuthorizationContext { 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, IAuthorizationContext authorizationContext)
{
UserManager = userManager;
LibraryManager = libraryManager;
UserDataRepository = userDataRepository;
ItemRepository = itemRepository;
DtoService = dtoService;
AuthorizationContext = authorizationContext;
}
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;
}
protected ItemsResult GetResultSlim(GetItemsByName request)
{
var dtoOptions = GetDtoOptions(AuthorizationContext, request);
User user = null;
BaseItem parentItem;
if (!string.IsNullOrWhiteSpace(request.UserId))
{
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);
}
var excludeItemTypes = request.GetExcludeItemTypes();
var includeItemTypes = request.GetIncludeItemTypes();
var mediaTypes = request.GetMediaTypes();
var query = new InternalItemsQuery(user)
{
ExcludeItemTypes = excludeItemTypes,
IncludeItemTypes = includeItemTypes,
MediaTypes = mediaTypes,
StartIndex = request.StartIndex,
Limit = request.Limit,
IsFavorite = request.IsFavorite,
NameLessThan = request.NameLessThan,
NameStartsWith = request.NameStartsWith,
NameStartsWithOrGreater = request.NameStartsWithOrGreater,
AlbumArtistStartsWithOrGreater = request.AlbumArtistStartsWithOrGreater,
Tags = request.GetTags(),
OfficialRatings = request.GetOfficialRatings(),
Genres = request.GetGenres(),
GenreIds = request.GetGenreIds(),
StudioIds = request.GetStudioIds(),
Person = request.Person,
PersonIds = request.GetPersonIds(),
PersonTypes = request.GetPersonTypes(),
Years = request.GetYears(),
MinCommunityRating = request.MinCommunityRating,
DtoOptions = dtoOptions
};
if (!string.IsNullOrWhiteSpace(request.ParentId))
{
if (parentItem is Folder)
{
query.AncestorIds = new[] { request.ParentId };
}
else
{
query.ItemIds = new[] { request.ParentId };
}
}
// Studios
if (!string.IsNullOrEmpty(request.Studios))
{
query.StudioIds = request.Studios.Split('|').Select(i =>
{
try
{
return LibraryManager.GetStudio(i);
}
catch
{
return null;
}
}).Where(i => i != null).Select(i => i.Id.ToString("N")).ToArray();
}
foreach (var filter in request.GetFilters())
{
switch (filter)
{
case ItemFilter.Dislikes:
query.IsLiked = false;
break;
case ItemFilter.IsFavorite:
query.IsFavorite = true;
break;
case ItemFilter.IsFavoriteOrLikes:
query.IsFavoriteOrLiked = true;
break;
case ItemFilter.IsFolder:
query.IsFolder = true;
break;
case ItemFilter.IsNotFolder:
query.IsFolder = false;
break;
case ItemFilter.IsPlayed:
query.IsPlayed = true;
break;
case ItemFilter.IsResumable:
query.IsResumable = true;
break;
case ItemFilter.IsUnplayed:
query.IsPlayed = false;
break;
case ItemFilter.Likes:
query.IsLiked = true;
break;
}
}
var result = GetItems(request, query);
var syncProgess = DtoService.GetSyncedItemProgress(dtoOptions);
var dtos = result.Items.Select(i =>
{
var dto = DtoService.GetItemByNameDto(i.Item1, dtoOptions, null, syncProgess, user);
if (!string.IsNullOrWhiteSpace(request.IncludeItemTypes))
{
SetItemCounts(dto, i.Item2);
}
return dto;
});
return new ItemsResult
{
Items = dtos.ToArray(),
TotalRecordCount = result.TotalRecordCount
};
}
protected virtual QueryResult<Tuple<BaseItem, ItemCounts>> GetItems(GetItemsByName request, InternalItemsQuery query)
{
return new QueryResult<Tuple<BaseItem, ItemCounts>>();
}
private void SetItemCounts(BaseItemDto dto, ItemCounts counts)
{
dto.ChildCount = counts.ItemCount;
dto.ProgramCount = counts.ProgramCount;
dto.SeriesCount = counts.SeriesCount;
dto.EpisodeCount = counts.EpisodeCount;
dto.MovieCount = counts.MovieCount;
dto.TrailerCount = counts.TrailerCount;
dto.AlbumCount = counts.AlbumCount;
dto.SongCount = counts.SongCount;
dto.GameCount = counts.GameCount;
dto.ArtistCount = counts.ArtistCount;
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>Task{ItemsResult}.</returns>
protected ItemsResult GetResult(GetItemsByName request)
{
var dtoOptions = GetDtoOptions(AuthorizationContext, request);
User user = null;
BaseItem parentItem;
if (!string.IsNullOrWhiteSpace(request.UserId))
{
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);
}
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,
DtoOptions = dtoOptions
};
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 = 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);
}
}
var tuples = ibnItems.Select(i => new Tuple<BaseItem, List<BaseItem>>(i, new List<BaseItem>()));
var syncProgess = DtoService.GetSyncedItemProgress(dtoOptions);
var dtos = tuples.Select(i => DtoService.GetItemByNameDto(i.Item1, dtoOptions, i.Item2, syncProgess, user));
result.Items = dtos.Where(i => i != null).ToArray();
return result;
}
/// <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>
private 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;
}
}
}