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jellyfin/MediaBrowser.Api/UserLibrary/ItemsService.cs

806 lines
26 KiB

using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Server.Implementations.HttpServer;
using ServiceStack.ServiceHost;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace MediaBrowser.Api.UserLibrary
{
/// <summary>
/// Class GetItems
/// </summary>
[Route("/Users/{UserId}/Items", "GET")]
public class GetItems : IReturn<ItemsResult>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
public Guid UserId { get; set; }
/// <summary>
/// Specify this to localize the search to a specific item or folder. Omit to use the root.
/// </summary>
/// <value>The parent id.</value>
public string ParentId { get; set; }
/// <summary>
/// Skips over a given number of items within the results. Use for paging.
/// </summary>
/// <value>The start index.</value>
public int? StartIndex { get; set; }
/// <summary>
/// The maximum number of items to return
/// </summary>
/// <value>The limit.</value>
public int? Limit { get; set; }
/// <summary>
/// Whether or not to perform the query recursively
/// </summary>
/// <value><c>true</c> if recursive; otherwise, <c>false</c>.</value>
public bool Recursive { get; set; }
/// <summary>
/// Limit results to items containing a specific person
/// </summary>
/// <value>The person.</value>
public string Person { get; set; }
/// <summary>
/// If the Person filter is used, this can also be used to restrict to a specific person type
/// </summary>
/// <value>The type of the person.</value>
public string PersonType { get; set; }
/// <summary>
/// Search characters used to find items
/// </summary>
/// <value>The index by.</value>
public string SearchTerm { get; set; }
/// <summary>
/// The dynamic, localized index function name
/// </summary>
/// <value>The index by.</value>
public string IndexBy { get; set; }
/// <summary>
/// The dynamic, localized sort function name
/// </summary>
/// <value>The dynamic sort by.</value>
public string DynamicSortBy { get; set; }
/// <summary>
/// What to sort the results by
/// </summary>
/// <value>The sort by.</value>
public string SortBy { get; set; }
/// <summary>
/// The sort order to return results with
/// </summary>
/// <value>The sort order.</value>
public string SortOrder { get; set; }
/// <summary>
/// Filters to apply to the results
/// </summary>
/// <value>The filters.</value>
public string Filters { get; set; }
/// <summary>
/// Fields to return within the items, in addition to basic information
/// </summary>
/// <value>The fields.</value>
public string Fields { get; set; }
/// <summary>
/// Limit results to items containing specific genres
/// </summary>
/// <value>The genres.</value>
public string Genres { get; set; }
/// <summary>
/// Limit results to items containing specific studios
/// </summary>
/// <value>The studios.</value>
public string Studios { get; set; }
/// <summary>
/// Gets or sets the exclude item types.
/// </summary>
/// <value>The exclude item types.</value>
public string ExcludeItemTypes { get; set; }
/// <summary>
/// Gets or sets the include item types.
/// </summary>
/// <value>The include item types.</value>
public string IncludeItemTypes { get; set; }
/// <summary>
/// Limit results to items containing specific years
/// </summary>
/// <value>The years.</value>
public string Years { get; set; }
/// <summary>
/// Gets or sets the image types.
/// </summary>
/// <value>The image types.</value>
public string ImageTypes { get; set; }
}
/// <summary>
/// Class ItemsService
/// </summary>
public class ItemsService : BaseRestService
{
/// <summary>
/// The _user manager
/// </summary>
private readonly IUserManager _userManager;
/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
/// <summary>
/// Initializes a new instance of the <see cref="ItemsService" /> class.
/// </summary>
/// <param name="userManager">The user manager.</param>
public ItemsService(IUserManager userManager, ILibraryManager libraryManager)
{
_userManager = userManager;
_libraryManager = libraryManager;
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetItems request)
{
var result = GetItems(request).Result;
return ToOptimizedResult(result);
}
/// <summary>
/// Gets the items.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>Task{ItemsResult}.</returns>
private async Task<ItemsResult> GetItems(GetItems request)
{
var user = _userManager.GetUserById(request.UserId);
var items = GetItemsToSerialize(request, user);
// Apply filters
// Run them starting with the ones that are likely to reduce the list the most
foreach (var filter in GetFilters(request).OrderByDescending(f => (int)f))
{
items = ApplyFilter(items, filter, user);
}
items = ApplyAdditionalFilters(request, items);
items = ApplySearchTerm(request, items);
items = ApplySortOrder(request, items, user);
var itemsArray = items.ToArray();
var pagedItems = ApplyPaging(request, itemsArray);
var fields = GetItemFields(request).ToList();
var dtoBuilder = new DtoBuilder(Logger);
var returnItems = await Task.WhenAll(pagedItems.Select(i => dtoBuilder.GetDtoBaseItem(i, user, fields, _libraryManager))).ConfigureAwait(false);
return new ItemsResult
{
TotalRecordCount = itemsArray.Length,
Items = returnItems
};
}
/// <summary>
/// Gets the items to serialize.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="user">The user.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
/// <exception cref="System.InvalidOperationException"></exception>
private IEnumerable<BaseItem> GetItemsToSerialize(GetItems request, User user)
{
var item = string.IsNullOrEmpty(request.ParentId) ? user.RootFolder : DtoBuilder.GetItemByClientId(request.ParentId, _userManager, _libraryManager, user.Id);
// Default list type = children
if (request.Recursive)
{
return ((Folder)item).GetRecursiveChildren(user);
}
return ((Folder)item).GetChildren(user, request.IndexBy, request.DynamicSortBy, GetSortOrder(request));
}
/// <summary>
/// Applies sort order
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <param name="user">The user.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplySortOrder(GetItems request, IEnumerable<BaseItem> items, User user)
{
var isFirst = true;
var descending = (GetSortOrder(request) ?? SortOrder.Ascending) == SortOrder.Descending;
IOrderedEnumerable<BaseItem> orderedItems = null;
foreach (var orderBy in GetOrderBy(request).Select(o => GetComparer(o, user)))
{
if (isFirst)
{
orderedItems = descending ? items.OrderByDescending(i => i, orderBy) : items.OrderBy(i => i, orderBy);
}
else
{
orderedItems = descending ? orderedItems.ThenByDescending(i => i, orderBy) : orderedItems.ThenBy(i => i, orderBy);
}
isFirst = false;
}
return orderedItems ?? items;
}
/// <summary>
/// Gets the comparer.
/// </summary>
/// <param name="sortBy">The sort by.</param>
/// <param name="user">The user.</param>
/// <returns>IComparer{BaseItem}.</returns>
/// <exception cref="System.ArgumentException"></exception>
private IComparer<BaseItem> GetComparer(ItemSortBy sortBy, User user)
{
switch (sortBy)
{
case ItemSortBy.Album:
return new AlbumComparer();
case ItemSortBy.AlbumArtist:
return new AlbumArtistComparer();
case ItemSortBy.Artist:
return new ArtistComparer();
case ItemSortBy.Random:
return new RandomComparer();
case ItemSortBy.DateCreated:
return new DateCreatedComparer();
case ItemSortBy.SortName:
return new SortNameComparer();
case ItemSortBy.PremiereDate:
return new PremiereDateComparer();
case ItemSortBy.DatePlayed:
return new DatePlayedComparer { User = user };
default:
throw new ArgumentException();
}
}
/// <summary>
/// Applies filtering
/// </summary>
/// <param name="items">The items.</param>
/// <param name="filter">The filter.</param>
/// <param name="user">The user.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplyFilter(IEnumerable<BaseItem> items, ItemFilter filter, User user)
{
switch (filter)
{
case ItemFilter.IsFavorite:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
return userdata != null && userdata.IsFavorite;
});
case ItemFilter.IsRecentlyAdded:
return items.Where(item => item.IsRecentlyAdded(user));
case ItemFilter.IsResumable:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
return userdata != null && userdata.PlaybackPositionTicks > 0;
});
case ItemFilter.IsPlayed:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
return userdata != null && userdata.PlayCount > 0;
});
case ItemFilter.IsRecentlyPlayed:
return items.Where(item => item.IsRecentlyPlayed(user));
case ItemFilter.IsUnplayed:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
return userdata == null || userdata.PlayCount == 0;
});
case ItemFilter.IsFolder:
return items.Where(item => item.IsFolder);
case ItemFilter.IsNotFolder:
return items.Where(item => !item.IsFolder);
}
return items;
}
/// <summary>
/// Applies the additional filters.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplyAdditionalFilters(GetItems request, IEnumerable<BaseItem> items)
{
var imageTypes = GetImageTypes(request).ToArray();
if (imageTypes.Length > 0)
{
items = items.Where(item => imageTypes.Any(imageType => HasImage(item, imageType)));
}
// Exclude item types
var excludeItemTypes = request.ExcludeItemTypes;
if (!string.IsNullOrEmpty(excludeItemTypes))
{
var vals = excludeItemTypes.Split(',');
items = items.Where(f => !vals.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase));
}
var includeItemTypes = request.IncludeItemTypes;
if (!string.IsNullOrEmpty(includeItemTypes))
{
var vals = includeItemTypes.Split(',');
items = items.Where(f => vals.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase));
}
var genres = request.Genres;
// Apply genre filter
if (!string.IsNullOrEmpty(genres))
{
var vals = genres.Split(',');
items = items.Where(f => f.Genres != null && vals.Any(v => f.Genres.Contains(v, StringComparer.OrdinalIgnoreCase)));
}
var studios = request.Studios;
// Apply studio filter
if (!string.IsNullOrEmpty(studios))
{
var vals = studios.Split(',');
items = items.Where(f => f.Studios != null && vals.Any(v => f.Studios.Contains(v, StringComparer.OrdinalIgnoreCase)));
}
var years = request.Years;
// Apply year filter
if (!string.IsNullOrEmpty(years))
{
var vals = years.Split(',').Select(int.Parse);
items = items.Where(f => f.ProductionYear.HasValue && vals.Contains(f.ProductionYear.Value));
}
var personName = request.Person;
// Apply person filter
if (!string.IsNullOrEmpty(personName))
{
var personType = request.PersonType;
items = !string.IsNullOrEmpty(personType)
? items.Where(item => item.People != null && item.People.Any(p => p.Name.Equals(personName, StringComparison.OrdinalIgnoreCase) && p.Type.Equals(personType, StringComparison.OrdinalIgnoreCase)))
: items.Where(item => item.People != null && item.People.Any(p => p.Name.Equals(personName, StringComparison.OrdinalIgnoreCase)));
}
return items;
}
/// <summary>
/// Determines whether the specified item has image.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="imageType">Type of the image.</param>
/// <returns><c>true</c> if the specified item has image; otherwise, <c>false</c>.</returns>
private bool HasImage(BaseItem item, ImageType imageType)
{
if (imageType == ImageType.Backdrop)
{
return item.BackdropImagePaths != null && item.BackdropImagePaths.Count > 0;
}
if (imageType == ImageType.Screenshot)
{
return item.ScreenshotImagePaths != null && item.ScreenshotImagePaths.Count > 0;
}
if (imageType == ImageType.ChapterImage)
{
var video = item as Video;
if (video != null)
{
return video.Chapters != null && video.Chapters.Any(c => !string.IsNullOrEmpty(c.ImagePath));
}
return false;
}
return item.HasImage(imageType);
}
/// <summary>
/// Applies the search term.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplySearchTerm(GetItems request, IEnumerable<BaseItem> items)
{
var term = request.SearchTerm;
if (!string.IsNullOrEmpty(term))
{
items = items.Where(i => i.Name.StartsWith(term, StringComparison.OrdinalIgnoreCase));
}
return items;
}
/// <summary>
/// Applies the paging.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplyPaging(GetItems request, IEnumerable<BaseItem> items)
{
// Start at
if (request.StartIndex.HasValue)
{
items = items.Skip(request.StartIndex.Value);
}
// Return limit
if (request.Limit.HasValue)
{
items = items.Take(request.Limit.Value);
}
return items;
}
/// <summary>
/// Gets the sort order.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Nullable{SortOrder}.</returns>
private SortOrder? GetSortOrder(GetItems request)
{
if (string.IsNullOrEmpty(request.SortOrder))
{
return null;
}
return (SortOrder)Enum.Parse(typeof(SortOrder), request.SortOrder, true);
}
/// <summary>
/// Gets the filters.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>IEnumerable{ItemFilter}.</returns>
private IEnumerable<ItemFilter> GetFilters(GetItems request)
{
var val = request.Filters;
if (string.IsNullOrEmpty(val))
{
return new ItemFilter[] { };
}
return val.Split(',').Select(v => (ItemFilter)Enum.Parse(typeof(ItemFilter), v, true));
}
/// <summary>
/// Gets the item fields.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>IEnumerable{ItemFields}.</returns>
private IEnumerable<ItemFields> GetItemFields(GetItems request)
{
var val = request.Fields;
if (string.IsNullOrEmpty(val))
{
return new ItemFields[] { };
}
return val.Split(',').Select(v => (ItemFields)Enum.Parse(typeof(ItemFields), v, true));
}
/// <summary>
/// Gets the order by.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>IEnumerable{ItemSortBy}.</returns>
private IEnumerable<ItemSortBy> GetOrderBy(GetItems request)
{
var val = request.SortBy;
if (string.IsNullOrEmpty(val))
{
return new ItemSortBy[] { };
}
return val.Split(',').Select(v => (ItemSortBy)Enum.Parse(typeof(ItemSortBy), v, true));
}
/// <summary>
/// Gets the image types.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>IEnumerable{ImageType}.</returns>
private IEnumerable<ImageType> GetImageTypes(GetItems request)
{
var val = request.ImageTypes;
if (string.IsNullOrEmpty(val))
{
return new ImageType[] { };
}
return val.Split(',').Select(v => (ImageType)Enum.Parse(typeof(ImageType), v, true));
}
}
/// <summary>
/// Class DateCreatedComparer
/// </summary>
public class DateCreatedComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return x.DateCreated.CompareTo(y.DateCreated);
}
}
/// <summary>
/// Class RandomComparer
/// </summary>
public class RandomComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return Guid.NewGuid().CompareTo(Guid.NewGuid());
}
}
/// <summary>
/// Class SortNameComparer
/// </summary>
public class SortNameComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return string.Compare(x.SortName, y.SortName, StringComparison.CurrentCultureIgnoreCase);
}
}
/// <summary>
/// Class AlbumArtistComparer
/// </summary>
public class AlbumArtistComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return string.Compare(GetValue(x), GetValue(y), StringComparison.CurrentCultureIgnoreCase);
}
/// <summary>
/// Gets the value.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>System.String.</returns>
private string GetValue(BaseItem x)
{
var audio = x as Audio;
return audio == null ? string.Empty : audio.AlbumArtist;
}
}
/// <summary>
/// Class AlbumComparer
/// </summary>
public class AlbumComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return string.Compare(GetValue(x), GetValue(y), StringComparison.CurrentCultureIgnoreCase);
}
/// <summary>
/// Gets the value.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>System.String.</returns>
private string GetValue(BaseItem x)
{
var audio = x as Audio;
return audio == null ? string.Empty : audio.Album;
}
}
/// <summary>
/// Class ArtistComparer
/// </summary>
public class ArtistComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return string.Compare(GetValue(x), GetValue(y), StringComparison.CurrentCultureIgnoreCase);
}
/// <summary>
/// Gets the value.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>System.String.</returns>
private string GetValue(BaseItem x)
{
var audio = x as Audio;
return audio == null ? string.Empty : audio.Artist;
}
}
/// <summary>
/// Class PremiereDateComparer
/// </summary>
public class PremiereDateComparer : IComparer<BaseItem>
{
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return GetDate(x).CompareTo(GetDate(y));
}
/// <summary>
/// Gets the date.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>DateTime.</returns>
private DateTime GetDate(BaseItem x)
{
if (x.PremiereDate.HasValue)
{
return x.PremiereDate.Value;
}
if (x.ProductionYear.HasValue)
{
return new DateTime(x.ProductionYear.Value, 1, 1, 0, 0, 0, DateTimeKind.Utc);
}
return DateTime.MaxValue;
}
}
/// <summary>
/// Class DatePlayedComparer
/// </summary>
public class DatePlayedComparer : IComparer<BaseItem>
{
/// <summary>
/// Gets or sets the user.
/// </summary>
/// <value>The user.</value>
public User User { get; set; }
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem x, BaseItem y)
{
return GetDate(x).CompareTo(GetDate(y));
}
/// <summary>
/// Gets the date.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>DateTime.</returns>
private DateTime GetDate(BaseItem x)
{
var userdata = x.GetUserData(User, false);
if (userdata != null && userdata.LastPlayedDate.HasValue)
{
return userdata.LastPlayedDate.Value;
}
return DateTime.MinValue;
}
}
}