jellyfin/Emby.Server.Implementations/Library/SearchEngine.cs
2024-03-13 14:56:51 +01:00

200 lines
6.7 KiB
C#

#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Linq;
using Jellyfin.Data.Entities;
using Jellyfin.Data.Enums;
using Jellyfin.Extensions;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Querying;
using MediaBrowser.Model.Search;
namespace Emby.Server.Implementations.Library
{
public class SearchEngine : ISearchEngine
{
private readonly ILibraryManager _libraryManager;
private readonly IUserManager _userManager;
public SearchEngine(ILibraryManager libraryManager, IUserManager userManager)
{
_libraryManager = libraryManager;
_userManager = userManager;
}
public QueryResult<SearchHintInfo> GetSearchHints(SearchQuery query)
{
User? user = null;
if (!query.UserId.IsEmpty())
{
user = _userManager.GetUserById(query.UserId);
}
var results = GetSearchHints(query, user);
var totalRecordCount = results.Count;
if (query.StartIndex.HasValue)
{
results = results.GetRange(query.StartIndex.Value, totalRecordCount - query.StartIndex.Value);
}
if (query.Limit.HasValue)
{
results = results.GetRange(0, Math.Min(query.Limit.Value, results.Count));
}
return new QueryResult<SearchHintInfo>(
query.StartIndex,
totalRecordCount,
results);
}
private static void AddIfMissing(List<BaseItemKind> list, BaseItemKind value)
{
if (!list.Contains(value))
{
list.Add(value);
}
}
/// <summary>
/// Gets the search hints.
/// </summary>
/// <param name="query">The query.</param>
/// <param name="user">The user.</param>
/// <returns>IEnumerable{SearchHintResult}.</returns>
/// <exception cref="ArgumentException"><c>query.SearchTerm</c> is <c>null</c> or empty.</exception>
private List<SearchHintInfo> GetSearchHints(SearchQuery query, User? user)
{
var searchTerm = query.SearchTerm;
ArgumentException.ThrowIfNullOrEmpty(searchTerm);
searchTerm = searchTerm.Trim().RemoveDiacritics();
var excludeItemTypes = query.ExcludeItemTypes.ToList();
var includeItemTypes = query.IncludeItemTypes.ToList();
excludeItemTypes.Add(BaseItemKind.Year);
excludeItemTypes.Add(BaseItemKind.Folder);
if (query.IncludeGenres && (includeItemTypes.Count == 0 || includeItemTypes.Contains(BaseItemKind.Genre)))
{
if (!query.IncludeMedia)
{
AddIfMissing(includeItemTypes, BaseItemKind.Genre);
AddIfMissing(includeItemTypes, BaseItemKind.MusicGenre);
}
}
else
{
AddIfMissing(excludeItemTypes, BaseItemKind.Genre);
AddIfMissing(excludeItemTypes, BaseItemKind.MusicGenre);
}
if (query.IncludePeople && (includeItemTypes.Count == 0 || includeItemTypes.Contains(BaseItemKind.Person)))
{
if (!query.IncludeMedia)
{
AddIfMissing(includeItemTypes, BaseItemKind.Person);
}
}
else
{
AddIfMissing(excludeItemTypes, BaseItemKind.Person);
}
if (query.IncludeStudios && (includeItemTypes.Count == 0 || includeItemTypes.Contains(BaseItemKind.Studio)))
{
if (!query.IncludeMedia)
{
AddIfMissing(includeItemTypes, BaseItemKind.Studio);
}
}
else
{
AddIfMissing(excludeItemTypes, BaseItemKind.Studio);
}
if (query.IncludeArtists && (includeItemTypes.Count == 0 || includeItemTypes.Contains(BaseItemKind.MusicArtist)))
{
if (!query.IncludeMedia)
{
AddIfMissing(includeItemTypes, BaseItemKind.MusicArtist);
}
}
else
{
AddIfMissing(excludeItemTypes, BaseItemKind.MusicArtist);
}
AddIfMissing(excludeItemTypes, BaseItemKind.CollectionFolder);
AddIfMissing(excludeItemTypes, BaseItemKind.Folder);
var mediaTypes = query.MediaTypes.ToList();
if (includeItemTypes.Count > 0)
{
excludeItemTypes.Clear();
mediaTypes.Clear();
}
var searchQuery = new InternalItemsQuery(user)
{
SearchTerm = searchTerm,
ExcludeItemTypes = excludeItemTypes.ToArray(),
IncludeItemTypes = includeItemTypes.ToArray(),
Limit = query.Limit,
IncludeItemsByName = !query.ParentId.HasValue,
ParentId = query.ParentId ?? Guid.Empty,
OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) },
Recursive = true,
IsKids = query.IsKids,
IsMovie = query.IsMovie,
IsNews = query.IsNews,
IsSeries = query.IsSeries,
IsSports = query.IsSports,
MediaTypes = mediaTypes.ToArray(),
DtoOptions = new DtoOptions
{
Fields = new ItemFields[]
{
ItemFields.AirTime,
ItemFields.DateCreated,
ItemFields.ChannelInfo,
ItemFields.ParentId
}
}
};
List<BaseItem> mediaItems;
if (searchQuery.IncludeItemTypes.Length == 1 && searchQuery.IncludeItemTypes[0] == BaseItemKind.MusicArtist)
{
if (!searchQuery.ParentId.IsEmpty())
{
searchQuery.AncestorIds = [searchQuery.ParentId];
searchQuery.ParentId = Guid.Empty;
}
searchQuery.IncludeItemsByName = true;
searchQuery.IncludeItemTypes = Array.Empty<BaseItemKind>();
mediaItems = _libraryManager.GetAllArtists(searchQuery).Items.Select(i => i.Item).ToList();
}
else
{
mediaItems = _libraryManager.GetItemList(searchQuery);
}
return mediaItems.Select(i => new SearchHintInfo
{
Item = i
}).ToList();
}
}
}