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using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Net;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.Services;
using Microsoft.Extensions.Logging;
namespace MediaBrowser.Api.Music
{
[Route("/Albums/{Id}/Similar", "GET", Summary = "Finds albums similar to a given album.")]
public class GetSimilarAlbums : BaseGetSimilarItemsFromItem
{
}
[Route("/Artists/{Id}/Similar", "GET", Summary = "Finds albums similar to a given album.")]
public class GetSimilarArtists : BaseGetSimilarItemsFromItem
{
}
[Authenticated]
public class AlbumsService : BaseApiService
{
/// <summary>
/// The _user manager
/// </summary>
private readonly IUserManager _userManager;
/// <summary>
/// The _user data repository
/// </summary>
private readonly IUserDataManager _userDataRepository;
/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
private readonly IItemRepository _itemRepo;
private readonly IDtoService _dtoService;
private readonly IAuthorizationContext _authContext;
public AlbumsService(
ILogger<AlbumsService> logger,
IServerConfigurationManager serverConfigurationManager,
IHttpResultFactory httpResultFactory,
IUserManager userManager,
IUserDataManager userDataRepository,
ILibraryManager libraryManager,
IItemRepository itemRepo,
IDtoService dtoService,
IAuthorizationContext authContext)
: base(logger, serverConfigurationManager, httpResultFactory)
{
_userManager = userManager;
_userDataRepository = userDataRepository;
_libraryManager = libraryManager;
_itemRepo = itemRepo;
_dtoService = dtoService;
_authContext = authContext;
}
public object Get(GetSimilarArtists request)
{
var dtoOptions = GetDtoOptions(_authContext, request);
var result = SimilarItemsHelper.GetSimilarItemsResult(dtoOptions, _userManager,
_itemRepo,
_libraryManager,
_userDataRepository,
_dtoService,
Logger,
request, new[] { typeof(MusicArtist) },
SimilarItemsHelper.GetSimiliarityScore);
return ToOptimizedResult(result);
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetSimilarAlbums request)
{
var dtoOptions = GetDtoOptions(_authContext, request);
var result = SimilarItemsHelper.GetSimilarItemsResult(dtoOptions, _userManager,
_itemRepo,
_libraryManager,
_userDataRepository,
_dtoService,
Logger,
request, new[] { typeof(MusicAlbum) },
GetAlbumSimilarityScore);
return ToOptimizedResult(result);
}
/// <summary>
/// Gets the album similarity score.
/// </summary>
/// <param name="item1">The item1.</param>
/// <param name="item1People">The item1 people.</param>
/// <param name="allPeople">All people.</param>
/// <param name="item2">The item2.</param>
/// <returns>System.Int32.</returns>
private int GetAlbumSimilarityScore(BaseItem item1, List<PersonInfo> item1People, List<PersonInfo> allPeople, BaseItem item2)
{
var points = SimilarItemsHelper.GetSimiliarityScore(item1, item1People, allPeople, item2);
var album1 = (MusicAlbum)item1;
var album2 = (MusicAlbum)item2;
var artists1 = album1
.GetAllArtists()
.DistinctNames()
.ToList();
var artists2 = new HashSet<string>(
album2.GetAllArtists().DistinctNames(),
StringComparer.OrdinalIgnoreCase);
return points + artists1.Where(artists2.Contains).Sum(i => 5);
}
}
}
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