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jellyfin/MediaBrowser.Api/UserLibrary/ItemsService.cs

505 lines
19 KiB

using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Querying;
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")]
[ServiceStack.ServiceHost.Api(Description = "Gets items based on a query.")]
public class GetItems : BaseItemsRequest, IReturn<ItemsResult>
{
/// <summary>
/// Limit results to items containing a specific person
/// </summary>
/// <value>The person.</value>
[ApiMember(Name = "Person", Description = "Optional. If specified, results will be filtered to include only those containing the specified person.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
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>
[ApiMember(Name = "PersonType", Description = "Optional. If specified, along with Person, results will be filtered to include only those containing the specified person and PersonType.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public string PersonType { get; set; }
/// <summary>
/// Search characters used to find items
/// </summary>
/// <value>The index by.</value>
[ApiMember(Name = "SearchTerm", Description = "Optional. If specified, results will be filtered based on a search term.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public string SearchTerm { get; set; }
/// <summary>
/// The dynamic, localized index function name
/// </summary>
/// <value>The index by.</value>
public string IndexBy { get; set; }
/// <summary>
/// What to sort the results by
/// </summary>
/// <value>The sort by.</value>
[ApiMember(Name = "SortBy", Description = "Optional. Specify one or more sort orders, comma delimeted. Options: Album, AlbumArtist, Artist, CommunityRating, DateCreated, DatePlayed, PremiereDate, ProductionYear, SortName, Random, Runtime", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string SortBy { get; set; }
/// <summary>
/// Filters to apply to the results
/// </summary>
/// <value>The filters.</value>
[ApiMember(Name = "Filters", Description = "Optional. Specify additional filters to apply. This allows multiple, comma delimeted. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsRecentlyAdded, IsResumable", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string Filters { get; set; }
/// <summary>
/// Limit results to items containing specific genres
/// </summary>
/// <value>The genres.</value>
[ApiMember(Name = "Genres", Description = "Optional. If specified, results will be filtered based on genre. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string Genres { get; set; }
/// <summary>
/// Limit results to items containing specific studios
/// </summary>
/// <value>The studios.</value>
[ApiMember(Name = "Studios", Description = "Optional. If specified, results will be filtered based on studio. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string Studios { get; set; }
/// <summary>
/// Gets or sets the exclude item types.
/// </summary>
/// <value>The exclude item types.</value>
[ApiMember(Name = "ExcludeItemTypes", Description = "Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string ExcludeItemTypes { get; set; }
/// <summary>
/// Gets or sets the include item types.
/// </summary>
/// <value>The include item types.</value>
[ApiMember(Name = "IncludeItemTypes", Description = "Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string IncludeItemTypes { get; set; }
/// <summary>
/// Limit results to items containing specific years
/// </summary>
/// <value>The years.</value>
[ApiMember(Name = "Years", Description = "Optional. If specified, results will be filtered based on production year. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string Years { get; set; }
/// <summary>
/// Gets or sets the image types.
/// </summary>
/// <value>The image types.</value>
[ApiMember(Name = "ImageTypes", Description = "Optional. If specified, results will be filtered based on those containing image types. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
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, _libraryManager);
var returnItems = await Task.WhenAll(pagedItems.Select(i => dtoBuilder.GetBaseItemDto(i, user, fields))).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);
}
/// <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 orderBy = GetOrderBy(request).ToArray();
return orderBy.Length == 0 ? items : _libraryManager.Sort(items, user, orderBy, request.SortOrder ?? SortOrder.Ascending);
}
/// <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.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.Chapter)
{
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 = _libraryManager.Search(items, request.SearchTerm);
}
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 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<string> GetOrderBy(GetItems request)
{
var val = request.SortBy;
if (string.IsNullOrEmpty(val))
{
return new string[] { };
}
return val.Split(',');
}
/// <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);
}
}
}