using System;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using Jellyfin.Api.Constants;
using Jellyfin.Api.Extensions;
using Jellyfin.Api.Helpers;
using Jellyfin.Api.ModelBinders;
using Jellyfin.Data.Enums;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.Querying;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;

namespace Jellyfin.Api.Controllers
{
    /// <summary>
    /// The items controller.
    /// </summary>
    [Route("")]
    [Authorize(Policy = Policies.DefaultAuthorization)]
    public class ItemsController : BaseJellyfinApiController
    {
        private readonly IUserManager _userManager;
        private readonly ILibraryManager _libraryManager;
        private readonly ILocalizationManager _localization;
        private readonly IDtoService _dtoService;
        private readonly ILogger<ItemsController> _logger;
        private readonly ISessionManager _sessionManager;

        /// <summary>
        /// Initializes a new instance of the <see cref="ItemsController"/> class.
        /// </summary>
        /// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
        /// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
        /// <param name="localization">Instance of the <see cref="ILocalizationManager"/> interface.</param>
        /// <param name="dtoService">Instance of the <see cref="IDtoService"/> interface.</param>
        /// <param name="logger">Instance of the <see cref="ILogger"/> interface.</param>
        /// <param name="sessionManager">Instance of the <see cref="ISessionManager"/> interface.</param>
        public ItemsController(
            IUserManager userManager,
            ILibraryManager libraryManager,
            ILocalizationManager localization,
            IDtoService dtoService,
            ILogger<ItemsController> logger,
            ISessionManager sessionManager)
        {
            _userManager = userManager;
            _libraryManager = libraryManager;
            _localization = localization;
            _dtoService = dtoService;
            _logger = logger;
            _sessionManager = sessionManager;
        }

        /// <summary>
        /// Gets items based on a query.
        /// </summary>
        /// <param name="userId">The user id supplied as query parameter.</param>
        /// <param name="maxOfficialRating">Optional filter by maximum official rating (PG, PG-13, TV-MA, etc).</param>
        /// <param name="hasThemeSong">Optional filter by items with theme songs.</param>
        /// <param name="hasThemeVideo">Optional filter by items with theme videos.</param>
        /// <param name="hasSubtitles">Optional filter by items with subtitles.</param>
        /// <param name="hasSpecialFeature">Optional filter by items with special features.</param>
        /// <param name="hasTrailer">Optional filter by items with trailers.</param>
        /// <param name="adjacentTo">Optional. Return items that are siblings of a supplied item.</param>
        /// <param name="parentIndexNumber">Optional filter by parent index number.</param>
        /// <param name="hasParentalRating">Optional filter by items that have or do not have a parental rating.</param>
        /// <param name="isHd">Optional filter by items that are HD or not.</param>
        /// <param name="is4K">Optional filter by items that are 4K or not.</param>
        /// <param name="locationTypes">Optional. If specified, results will be filtered based on LocationType. This allows multiple, comma delimited.</param>
        /// <param name="excludeLocationTypes">Optional. If specified, results will be filtered based on the LocationType. This allows multiple, comma delimited.</param>
        /// <param name="isMissing">Optional filter by items that are missing episodes or not.</param>
        /// <param name="isUnaired">Optional filter by items that are unaired episodes or not.</param>
        /// <param name="minCommunityRating">Optional filter by minimum community rating.</param>
        /// <param name="minCriticRating">Optional filter by minimum critic rating.</param>
        /// <param name="minPremiereDate">Optional. The minimum premiere date. Format = ISO.</param>
        /// <param name="minDateLastSaved">Optional. The minimum last saved date. Format = ISO.</param>
        /// <param name="minDateLastSavedForUser">Optional. The minimum last saved date for the current user. Format = ISO.</param>
        /// <param name="maxPremiereDate">Optional. The maximum premiere date. Format = ISO.</param>
        /// <param name="hasOverview">Optional filter by items that have an overview or not.</param>
        /// <param name="hasImdbId">Optional filter by items that have an imdb id or not.</param>
        /// <param name="hasTmdbId">Optional filter by items that have a tmdb id or not.</param>
        /// <param name="hasTvdbId">Optional filter by items that have a tvdb id or not.</param>
        /// <param name="excludeItemIds">Optional. If specified, results will be filtered by excluding item ids. This allows multiple, comma delimited.</param>
        /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
        /// <param name="limit">Optional. The maximum number of records to return.</param>
        /// <param name="recursive">When searching within folders, this determines whether or not the search will be recursive. true/false.</param>
        /// <param name="searchTerm">Optional. Filter based on a search term.</param>
        /// <param name="sortOrder">Sort Order - Ascending,Descending.</param>
        /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
        /// <param name="excludeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.</param>
        /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on the item type. This allows multiple, comma delimited.</param>
        /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
        /// <param name="isFavorite">Optional filter by items that are marked as favorite, or not.</param>
        /// <param name="mediaTypes">Optional filter by MediaType. Allows multiple, comma delimited.</param>
        /// <param name="imageTypes">Optional. If specified, results will be filtered based on those containing image types. This allows multiple, comma delimited.</param>
        /// <param name="sortBy">Optional. Specify one or more sort orders, comma delimited. Options: Album, AlbumArtist, Artist, Budget, CommunityRating, CriticRating, DateCreated, DatePlayed, PlayCount, PremiereDate, ProductionYear, SortName, Random, Revenue, Runtime.</param>
        /// <param name="isPlayed">Optional filter by items that are played, or not.</param>
        /// <param name="genres">Optional. If specified, results will be filtered based on genre. This allows multiple, pipe delimited.</param>
        /// <param name="officialRatings">Optional. If specified, results will be filtered based on OfficialRating. This allows multiple, pipe delimited.</param>
        /// <param name="tags">Optional. If specified, results will be filtered based on tag. This allows multiple, pipe delimited.</param>
        /// <param name="years">Optional. If specified, results will be filtered based on production year. This allows multiple, comma delimited.</param>
        /// <param name="enableUserData">Optional, include user data.</param>
        /// <param name="imageTypeLimit">Optional, the max number of images to return, per image type.</param>
        /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
        /// <param name="person">Optional. If specified, results will be filtered to include only those containing the specified person.</param>
        /// <param name="personIds">Optional. If specified, results will be filtered to include only those containing the specified person id.</param>
        /// <param name="personTypes">Optional. If specified, along with Person, results will be filtered to include only those containing the specified person and PersonType. Allows multiple, comma-delimited.</param>
        /// <param name="studios">Optional. If specified, results will be filtered based on studio. This allows multiple, pipe delimited.</param>
        /// <param name="artists">Optional. If specified, results will be filtered based on artists. This allows multiple, pipe delimited.</param>
        /// <param name="excludeArtistIds">Optional. If specified, results will be filtered based on artist id. This allows multiple, pipe delimited.</param>
        /// <param name="artistIds">Optional. If specified, results will be filtered to include only those containing the specified artist id.</param>
        /// <param name="albumArtistIds">Optional. If specified, results will be filtered to include only those containing the specified album artist id.</param>
        /// <param name="contributingArtistIds">Optional. If specified, results will be filtered to include only those containing the specified contributing artist id.</param>
        /// <param name="albums">Optional. If specified, results will be filtered based on album. This allows multiple, pipe delimited.</param>
        /// <param name="albumIds">Optional. If specified, results will be filtered based on album id. This allows multiple, pipe delimited.</param>
        /// <param name="ids">Optional. If specific items are needed, specify a list of item id's to retrieve. This allows multiple, comma delimited.</param>
        /// <param name="videoTypes">Optional filter by VideoType (videofile, dvd, bluray, iso). Allows multiple, comma delimited.</param>
        /// <param name="minOfficialRating">Optional filter by minimum official rating (PG, PG-13, TV-MA, etc).</param>
        /// <param name="isLocked">Optional filter by items that are locked.</param>
        /// <param name="isPlaceHolder">Optional filter by items that are placeholders.</param>
        /// <param name="hasOfficialRating">Optional filter by items that have official ratings.</param>
        /// <param name="collapseBoxSetItems">Whether or not to hide items behind their boxsets.</param>
        /// <param name="minWidth">Optional. Filter by the minimum width of the item.</param>
        /// <param name="minHeight">Optional. Filter by the minimum height of the item.</param>
        /// <param name="maxWidth">Optional. Filter by the maximum width of the item.</param>
        /// <param name="maxHeight">Optional. Filter by the maximum height of the item.</param>
        /// <param name="is3D">Optional filter by items that are 3D, or not.</param>
        /// <param name="seriesStatus">Optional filter by Series Status. Allows multiple, comma delimited.</param>
        /// <param name="nameStartsWithOrGreater">Optional filter by items whose name is sorted equally or greater than a given input string.</param>
        /// <param name="nameStartsWith">Optional filter by items whose name is sorted equally than a given input string.</param>
        /// <param name="nameLessThan">Optional filter by items whose name is equally or lesser than a given input string.</param>
        /// <param name="studioIds">Optional. If specified, results will be filtered based on studio id. This allows multiple, pipe delimited.</param>
        /// <param name="genreIds">Optional. If specified, results will be filtered based on genre id. This allows multiple, pipe delimited.</param>
        /// <param name="enableTotalRecordCount">Optional. Enable the total record count.</param>
        /// <param name="enableImages">Optional, include image information in output.</param>
        /// <returns>A <see cref="QueryResult{BaseItemDto}"/> with the items.</returns>
        [HttpGet("Items")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        public ActionResult<QueryResult<BaseItemDto>> GetItems(
            [FromQuery] Guid userId,
            [FromQuery] string? maxOfficialRating,
            [FromQuery] bool? hasThemeSong,
            [FromQuery] bool? hasThemeVideo,
            [FromQuery] bool? hasSubtitles,
            [FromQuery] bool? hasSpecialFeature,
            [FromQuery] bool? hasTrailer,
            [FromQuery] string? adjacentTo,
            [FromQuery] int? parentIndexNumber,
            [FromQuery] bool? hasParentalRating,
            [FromQuery] bool? isHd,
            [FromQuery] bool? is4K,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] LocationType[] locationTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] LocationType[] excludeLocationTypes,
            [FromQuery] bool? isMissing,
            [FromQuery] bool? isUnaired,
            [FromQuery] double? minCommunityRating,
            [FromQuery] double? minCriticRating,
            [FromQuery] DateTime? minPremiereDate,
            [FromQuery] DateTime? minDateLastSaved,
            [FromQuery] DateTime? minDateLastSavedForUser,
            [FromQuery] DateTime? maxPremiereDate,
            [FromQuery] bool? hasOverview,
            [FromQuery] bool? hasImdbId,
            [FromQuery] bool? hasTmdbId,
            [FromQuery] bool? hasTvdbId,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] excludeItemIds,
            [FromQuery] int? startIndex,
            [FromQuery] int? limit,
            [FromQuery] bool? recursive,
            [FromQuery] string? searchTerm,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] SortOrder[] sortOrder,
            [FromQuery] Guid? parentId,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ItemFields[] fields,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] BaseItemKind[] excludeItemTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] BaseItemKind[] includeItemTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ItemFilter[] filters,
            [FromQuery] bool? isFavorite,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] mediaTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ImageType[] imageTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] sortBy,
            [FromQuery] bool? isPlayed,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] genres,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] officialRatings,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] tags,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] int[] years,
            [FromQuery] bool? enableUserData,
            [FromQuery] int? imageTypeLimit,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ImageType[] enableImageTypes,
            [FromQuery] string? person,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] personIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] personTypes,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] studios,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] artists,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] excludeArtistIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] artistIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] albumArtistIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] contributingArtistIds,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] albums,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] albumIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] ids,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] VideoType[] videoTypes,
            [FromQuery] string? minOfficialRating,
            [FromQuery] bool? isLocked,
            [FromQuery] bool? isPlaceHolder,
            [FromQuery] bool? hasOfficialRating,
            [FromQuery] bool? collapseBoxSetItems,
            [FromQuery] int? minWidth,
            [FromQuery] int? minHeight,
            [FromQuery] int? maxWidth,
            [FromQuery] int? maxHeight,
            [FromQuery] bool? is3D,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] SeriesStatus[] seriesStatus,
            [FromQuery] string? nameStartsWithOrGreater,
            [FromQuery] string? nameStartsWith,
            [FromQuery] string? nameLessThan,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] studioIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] genreIds,
            [FromQuery] bool enableTotalRecordCount = true,
            [FromQuery] bool? enableImages = true)
        {
            var user = userId.Equals(default) ? null : _userManager.GetUserById(userId);
            var dtoOptions = new DtoOptions { Fields = fields }
                .AddClientFields(Request)
                .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);

            if (includeItemTypes.Length == 1
                && (includeItemTypes[0] == BaseItemKind.Playlist
                    || includeItemTypes[0] == BaseItemKind.BoxSet))
            {
                parentId = null;
            }

            var item = _libraryManager.GetParentItem(parentId, userId);
            QueryResult<BaseItem> result;

            if (item is not Folder folder)
            {
                folder = _libraryManager.GetUserRootFolder();
            }

            string? collectionType = null;
            if (folder is IHasCollectionType hasCollectionType)
            {
                collectionType = hasCollectionType.CollectionType;
            }

            if (string.Equals(collectionType, CollectionType.Playlists, StringComparison.OrdinalIgnoreCase))
            {
                recursive = true;
                includeItemTypes = new[] { BaseItemKind.Playlist };
            }

            var enabledChannels = user!.GetPreferenceValues<Guid>(PreferenceKind.EnabledChannels);

            bool isInEnabledFolder = Array.IndexOf(user.GetPreferenceValues<Guid>(PreferenceKind.EnabledFolders), item.Id) != -1
                                     // Assume all folders inside an EnabledChannel are enabled
                                     || Array.IndexOf(enabledChannels, item.Id) != -1
                                     // Assume all items inside an EnabledChannel are enabled
                                     || Array.IndexOf(enabledChannels, item.ChannelId) != -1;

            var collectionFolders = _libraryManager.GetCollectionFolders(item);
            foreach (var collectionFolder in collectionFolders)
            {
                if (user.GetPreferenceValues<Guid>(PreferenceKind.EnabledFolders).Contains(collectionFolder.Id))
                {
                    isInEnabledFolder = true;
                }
            }

            if (item is not UserRootFolder
                && !isInEnabledFolder
                && !user.HasPermission(PermissionKind.EnableAllFolders)
                && !user.HasPermission(PermissionKind.EnableAllChannels)
                && !string.Equals(collectionType, CollectionType.Folders, StringComparison.OrdinalIgnoreCase))
            {
                _logger.LogWarning("{UserName} is not permitted to access Library {ItemName}.", user.Username, item.Name);
                return Unauthorized($"{user.Username} is not permitted to access Library {item.Name}.");
            }

            if ((recursive.HasValue && recursive.Value) || ids.Length != 0 || item is not UserRootFolder)
            {
                var query = new InternalItemsQuery(user)
                {
                    IsPlayed = isPlayed,
                    MediaTypes = mediaTypes,
                    IncludeItemTypes = includeItemTypes,
                    ExcludeItemTypes = excludeItemTypes,
                    Recursive = recursive ?? false,
                    OrderBy = RequestHelpers.GetOrderBy(sortBy, sortOrder),
                    IsFavorite = isFavorite,
                    Limit = limit,
                    StartIndex = startIndex,
                    IsMissing = isMissing,
                    IsUnaired = isUnaired,
                    CollapseBoxSetItems = collapseBoxSetItems,
                    NameLessThan = nameLessThan,
                    NameStartsWith = nameStartsWith,
                    NameStartsWithOrGreater = nameStartsWithOrGreater,
                    HasImdbId = hasImdbId,
                    IsPlaceHolder = isPlaceHolder,
                    IsLocked = isLocked,
                    MinWidth = minWidth,
                    MinHeight = minHeight,
                    MaxWidth = maxWidth,
                    MaxHeight = maxHeight,
                    Is3D = is3D,
                    HasTvdbId = hasTvdbId,
                    HasTmdbId = hasTmdbId,
                    HasOverview = hasOverview,
                    HasOfficialRating = hasOfficialRating,
                    HasParentalRating = hasParentalRating,
                    HasSpecialFeature = hasSpecialFeature,
                    HasSubtitles = hasSubtitles,
                    HasThemeSong = hasThemeSong,
                    HasThemeVideo = hasThemeVideo,
                    HasTrailer = hasTrailer,
                    IsHD = isHd,
                    Is4K = is4K,
                    Tags = tags,
                    OfficialRatings = officialRatings,
                    Genres = genres,
                    ArtistIds = artistIds,
                    AlbumArtistIds = albumArtistIds,
                    ContributingArtistIds = contributingArtistIds,
                    GenreIds = genreIds,
                    StudioIds = studioIds,
                    Person = person,
                    PersonIds = personIds,
                    PersonTypes = personTypes,
                    Years = years,
                    ImageTypes = imageTypes,
                    VideoTypes = videoTypes,
                    AdjacentTo = adjacentTo,
                    ItemIds = ids,
                    MinCommunityRating = minCommunityRating,
                    MinCriticRating = minCriticRating,
                    ParentId = parentId ?? Guid.Empty,
                    ParentIndexNumber = parentIndexNumber,
                    EnableTotalRecordCount = enableTotalRecordCount,
                    ExcludeItemIds = excludeItemIds,
                    DtoOptions = dtoOptions,
                    SearchTerm = searchTerm,
                    MinDateLastSaved = minDateLastSaved?.ToUniversalTime(),
                    MinDateLastSavedForUser = minDateLastSavedForUser?.ToUniversalTime(),
                    MinPremiereDate = minPremiereDate?.ToUniversalTime(),
                    MaxPremiereDate = maxPremiereDate?.ToUniversalTime(),
                };

                if (ids.Length != 0 || !string.IsNullOrWhiteSpace(searchTerm))
                {
                    query.CollapseBoxSetItems = false;
                }

                foreach (var filter in filters)
                {
                    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;
                    }
                }

                // Filter by Series Status
                if (seriesStatus.Length != 0)
                {
                    query.SeriesStatuses = seriesStatus;
                }

                // ExcludeLocationTypes
                if (excludeLocationTypes.Any(t => t == LocationType.Virtual))
                {
                    query.IsVirtualItem = false;
                }

                if (locationTypes.Length > 0 && locationTypes.Length < 4)
                {
                    query.IsVirtualItem = locationTypes.Contains(LocationType.Virtual);
                }

                // Min official rating
                if (!string.IsNullOrWhiteSpace(minOfficialRating))
                {
                    query.MinParentalRating = _localization.GetRatingLevel(minOfficialRating);
                }

                // Max official rating
                if (!string.IsNullOrWhiteSpace(maxOfficialRating))
                {
                    query.MaxParentalRating = _localization.GetRatingLevel(maxOfficialRating);
                }

                // Artists
                if (artists.Length != 0)
                {
                    query.ArtistIds = artists.Select(i =>
                    {
                        try
                        {
                            return _libraryManager.GetArtist(i, new DtoOptions(false));
                        }
                        catch
                        {
                            return null;
                        }
                    }).Where(i => i != null).Select(i => i!.Id).ToArray();
                }

                // ExcludeArtistIds
                if (excludeArtistIds.Length != 0)
                {
                    query.ExcludeArtistIds = excludeArtistIds;
                }

                if (albumIds.Length != 0)
                {
                    query.AlbumIds = albumIds;
                }

                // Albums
                if (albums.Length != 0)
                {
                    query.AlbumIds = albums.SelectMany(i =>
                    {
                        return _libraryManager.GetItemIds(new InternalItemsQuery { IncludeItemTypes = new[] { BaseItemKind.MusicAlbum }, Name = i, Limit = 1 });
                    }).ToArray();
                }

                // Studios
                if (studios.Length != 0)
                {
                    query.StudioIds = studios.Select(i =>
                    {
                        try
                        {
                            return _libraryManager.GetStudio(i);
                        }
                        catch
                        {
                            return null;
                        }
                    }).Where(i => i != null).Select(i => i!.Id).ToArray();
                }

                // Apply default sorting if none requested
                if (query.OrderBy.Count == 0)
                {
                    // Albums by artist
                    if (query.ArtistIds.Length > 0 && query.IncludeItemTypes.Length == 1 && query.IncludeItemTypes[0] == BaseItemKind.MusicAlbum)
                    {
                        query.OrderBy = new[] { (ItemSortBy.ProductionYear, SortOrder.Descending), (ItemSortBy.SortName, SortOrder.Ascending) };
                    }
                }

                result = folder.GetItems(query);
            }
            else
            {
                var itemsArray = folder.GetChildren(user, true);
                result = new QueryResult<BaseItem>(itemsArray);
            }

            return new QueryResult<BaseItemDto>(
                startIndex,
                result.TotalRecordCount,
                _dtoService.GetBaseItemDtos(result.Items, dtoOptions, user));
        }

        /// <summary>
        /// Gets items based on a query.
        /// </summary>
        /// <param name="userId">The user id supplied as query parameter.</param>
        /// <param name="maxOfficialRating">Optional filter by maximum official rating (PG, PG-13, TV-MA, etc).</param>
        /// <param name="hasThemeSong">Optional filter by items with theme songs.</param>
        /// <param name="hasThemeVideo">Optional filter by items with theme videos.</param>
        /// <param name="hasSubtitles">Optional filter by items with subtitles.</param>
        /// <param name="hasSpecialFeature">Optional filter by items with special features.</param>
        /// <param name="hasTrailer">Optional filter by items with trailers.</param>
        /// <param name="adjacentTo">Optional. Return items that are siblings of a supplied item.</param>
        /// <param name="parentIndexNumber">Optional filter by parent index number.</param>
        /// <param name="hasParentalRating">Optional filter by items that have or do not have a parental rating.</param>
        /// <param name="isHd">Optional filter by items that are HD or not.</param>
        /// <param name="is4K">Optional filter by items that are 4K or not.</param>
        /// <param name="locationTypes">Optional. If specified, results will be filtered based on LocationType. This allows multiple, comma delimeted.</param>
        /// <param name="excludeLocationTypes">Optional. If specified, results will be filtered based on the LocationType. This allows multiple, comma delimeted.</param>
        /// <param name="isMissing">Optional filter by items that are missing episodes or not.</param>
        /// <param name="isUnaired">Optional filter by items that are unaired episodes or not.</param>
        /// <param name="minCommunityRating">Optional filter by minimum community rating.</param>
        /// <param name="minCriticRating">Optional filter by minimum critic rating.</param>
        /// <param name="minPremiereDate">Optional. The minimum premiere date. Format = ISO.</param>
        /// <param name="minDateLastSaved">Optional. The minimum last saved date. Format = ISO.</param>
        /// <param name="minDateLastSavedForUser">Optional. The minimum last saved date for the current user. Format = ISO.</param>
        /// <param name="maxPremiereDate">Optional. The maximum premiere date. Format = ISO.</param>
        /// <param name="hasOverview">Optional filter by items that have an overview or not.</param>
        /// <param name="hasImdbId">Optional filter by items that have an imdb id or not.</param>
        /// <param name="hasTmdbId">Optional filter by items that have a tmdb id or not.</param>
        /// <param name="hasTvdbId">Optional filter by items that have a tvdb id or not.</param>
        /// <param name="excludeItemIds">Optional. If specified, results will be filtered by exxcluding item ids. This allows multiple, comma delimeted.</param>
        /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
        /// <param name="limit">Optional. The maximum number of records to return.</param>
        /// <param name="recursive">When searching within folders, this determines whether or not the search will be recursive. true/false.</param>
        /// <param name="searchTerm">Optional. Filter based on a search term.</param>
        /// <param name="sortOrder">Sort Order - Ascending,Descending.</param>
        /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
        /// <param name="excludeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.</param>
        /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on the item type. This allows multiple, comma delimeted.</param>
        /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimeted. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
        /// <param name="isFavorite">Optional filter by items that are marked as favorite, or not.</param>
        /// <param name="mediaTypes">Optional filter by MediaType. Allows multiple, comma delimited.</param>
        /// <param name="imageTypes">Optional. If specified, results will be filtered based on those containing image types. This allows multiple, comma delimited.</param>
        /// <param name="sortBy">Optional. Specify one or more sort orders, comma delimeted. Options: Album, AlbumArtist, Artist, Budget, CommunityRating, CriticRating, DateCreated, DatePlayed, PlayCount, PremiereDate, ProductionYear, SortName, Random, Revenue, Runtime.</param>
        /// <param name="isPlayed">Optional filter by items that are played, or not.</param>
        /// <param name="genres">Optional. If specified, results will be filtered based on genre. This allows multiple, pipe delimeted.</param>
        /// <param name="officialRatings">Optional. If specified, results will be filtered based on OfficialRating. This allows multiple, pipe delimeted.</param>
        /// <param name="tags">Optional. If specified, results will be filtered based on tag. This allows multiple, pipe delimeted.</param>
        /// <param name="years">Optional. If specified, results will be filtered based on production year. This allows multiple, comma delimeted.</param>
        /// <param name="enableUserData">Optional, include user data.</param>
        /// <param name="imageTypeLimit">Optional, the max number of images to return, per image type.</param>
        /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
        /// <param name="person">Optional. If specified, results will be filtered to include only those containing the specified person.</param>
        /// <param name="personIds">Optional. If specified, results will be filtered to include only those containing the specified person id.</param>
        /// <param name="personTypes">Optional. If specified, along with Person, results will be filtered to include only those containing the specified person and PersonType. Allows multiple, comma-delimited.</param>
        /// <param name="studios">Optional. If specified, results will be filtered based on studio. This allows multiple, pipe delimeted.</param>
        /// <param name="artists">Optional. If specified, results will be filtered based on artists. This allows multiple, pipe delimeted.</param>
        /// <param name="excludeArtistIds">Optional. If specified, results will be filtered based on artist id. This allows multiple, pipe delimeted.</param>
        /// <param name="artistIds">Optional. If specified, results will be filtered to include only those containing the specified artist id.</param>
        /// <param name="albumArtistIds">Optional. If specified, results will be filtered to include only those containing the specified album artist id.</param>
        /// <param name="contributingArtistIds">Optional. If specified, results will be filtered to include only those containing the specified contributing artist id.</param>
        /// <param name="albums">Optional. If specified, results will be filtered based on album. This allows multiple, pipe delimeted.</param>
        /// <param name="albumIds">Optional. If specified, results will be filtered based on album id. This allows multiple, pipe delimeted.</param>
        /// <param name="ids">Optional. If specific items are needed, specify a list of item id's to retrieve. This allows multiple, comma delimited.</param>
        /// <param name="videoTypes">Optional filter by VideoType (videofile, dvd, bluray, iso). Allows multiple, comma delimeted.</param>
        /// <param name="minOfficialRating">Optional filter by minimum official rating (PG, PG-13, TV-MA, etc).</param>
        /// <param name="isLocked">Optional filter by items that are locked.</param>
        /// <param name="isPlaceHolder">Optional filter by items that are placeholders.</param>
        /// <param name="hasOfficialRating">Optional filter by items that have official ratings.</param>
        /// <param name="collapseBoxSetItems">Whether or not to hide items behind their boxsets.</param>
        /// <param name="minWidth">Optional. Filter by the minimum width of the item.</param>
        /// <param name="minHeight">Optional. Filter by the minimum height of the item.</param>
        /// <param name="maxWidth">Optional. Filter by the maximum width of the item.</param>
        /// <param name="maxHeight">Optional. Filter by the maximum height of the item.</param>
        /// <param name="is3D">Optional filter by items that are 3D, or not.</param>
        /// <param name="seriesStatus">Optional filter by Series Status. Allows multiple, comma delimeted.</param>
        /// <param name="nameStartsWithOrGreater">Optional filter by items whose name is sorted equally or greater than a given input string.</param>
        /// <param name="nameStartsWith">Optional filter by items whose name is sorted equally than a given input string.</param>
        /// <param name="nameLessThan">Optional filter by items whose name is equally or lesser than a given input string.</param>
        /// <param name="studioIds">Optional. If specified, results will be filtered based on studio id. This allows multiple, pipe delimeted.</param>
        /// <param name="genreIds">Optional. If specified, results will be filtered based on genre id. This allows multiple, pipe delimeted.</param>
        /// <param name="enableTotalRecordCount">Optional. Enable the total record count.</param>
        /// <param name="enableImages">Optional, include image information in output.</param>
        /// <returns>A <see cref="QueryResult{BaseItemDto}"/> with the items.</returns>
        [HttpGet("Users/{userId}/Items")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        public ActionResult<QueryResult<BaseItemDto>> GetItemsByUserId(
            [FromRoute] Guid userId,
            [FromQuery] string? maxOfficialRating,
            [FromQuery] bool? hasThemeSong,
            [FromQuery] bool? hasThemeVideo,
            [FromQuery] bool? hasSubtitles,
            [FromQuery] bool? hasSpecialFeature,
            [FromQuery] bool? hasTrailer,
            [FromQuery] string? adjacentTo,
            [FromQuery] int? parentIndexNumber,
            [FromQuery] bool? hasParentalRating,
            [FromQuery] bool? isHd,
            [FromQuery] bool? is4K,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] LocationType[] locationTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] LocationType[] excludeLocationTypes,
            [FromQuery] bool? isMissing,
            [FromQuery] bool? isUnaired,
            [FromQuery] double? minCommunityRating,
            [FromQuery] double? minCriticRating,
            [FromQuery] DateTime? minPremiereDate,
            [FromQuery] DateTime? minDateLastSaved,
            [FromQuery] DateTime? minDateLastSavedForUser,
            [FromQuery] DateTime? maxPremiereDate,
            [FromQuery] bool? hasOverview,
            [FromQuery] bool? hasImdbId,
            [FromQuery] bool? hasTmdbId,
            [FromQuery] bool? hasTvdbId,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] excludeItemIds,
            [FromQuery] int? startIndex,
            [FromQuery] int? limit,
            [FromQuery] bool? recursive,
            [FromQuery] string? searchTerm,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] SortOrder[] sortOrder,
            [FromQuery] Guid? parentId,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ItemFields[] fields,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] BaseItemKind[] excludeItemTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] BaseItemKind[] includeItemTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ItemFilter[] filters,
            [FromQuery] bool? isFavorite,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] mediaTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ImageType[] imageTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] sortBy,
            [FromQuery] bool? isPlayed,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] genres,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] officialRatings,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] tags,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] int[] years,
            [FromQuery] bool? enableUserData,
            [FromQuery] int? imageTypeLimit,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ImageType[] enableImageTypes,
            [FromQuery] string? person,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] personIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] personTypes,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] studios,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] artists,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] excludeArtistIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] artistIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] albumArtistIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] contributingArtistIds,
            [FromQuery, ModelBinder(typeof(PipeDelimitedArrayModelBinder))] string[] albums,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] albumIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] ids,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] VideoType[] videoTypes,
            [FromQuery] string? minOfficialRating,
            [FromQuery] bool? isLocked,
            [FromQuery] bool? isPlaceHolder,
            [FromQuery] bool? hasOfficialRating,
            [FromQuery] bool? collapseBoxSetItems,
            [FromQuery] int? minWidth,
            [FromQuery] int? minHeight,
            [FromQuery] int? maxWidth,
            [FromQuery] int? maxHeight,
            [FromQuery] bool? is3D,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] SeriesStatus[] seriesStatus,
            [FromQuery] string? nameStartsWithOrGreater,
            [FromQuery] string? nameStartsWith,
            [FromQuery] string? nameLessThan,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] studioIds,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] Guid[] genreIds,
            [FromQuery] bool enableTotalRecordCount = true,
            [FromQuery] bool? enableImages = true)
        {
            return GetItems(
                userId,
                maxOfficialRating,
                hasThemeSong,
                hasThemeVideo,
                hasSubtitles,
                hasSpecialFeature,
                hasTrailer,
                adjacentTo,
                parentIndexNumber,
                hasParentalRating,
                isHd,
                is4K,
                locationTypes,
                excludeLocationTypes,
                isMissing,
                isUnaired,
                minCommunityRating,
                minCriticRating,
                minPremiereDate,
                minDateLastSaved,
                minDateLastSavedForUser,
                maxPremiereDate,
                hasOverview,
                hasImdbId,
                hasTmdbId,
                hasTvdbId,
                excludeItemIds,
                startIndex,
                limit,
                recursive,
                searchTerm,
                sortOrder,
                parentId,
                fields,
                excludeItemTypes,
                includeItemTypes,
                filters,
                isFavorite,
                mediaTypes,
                imageTypes,
                sortBy,
                isPlayed,
                genres,
                officialRatings,
                tags,
                years,
                enableUserData,
                imageTypeLimit,
                enableImageTypes,
                person,
                personIds,
                personTypes,
                studios,
                artists,
                excludeArtistIds,
                artistIds,
                albumArtistIds,
                contributingArtistIds,
                albums,
                albumIds,
                ids,
                videoTypes,
                minOfficialRating,
                isLocked,
                isPlaceHolder,
                hasOfficialRating,
                collapseBoxSetItems,
                minWidth,
                minHeight,
                maxWidth,
                maxHeight,
                is3D,
                seriesStatus,
                nameStartsWithOrGreater,
                nameStartsWith,
                nameLessThan,
                studioIds,
                genreIds,
                enableTotalRecordCount,
                enableImages);
        }

        /// <summary>
        /// Gets items based on a query.
        /// </summary>
        /// <param name="userId">The user id.</param>
        /// <param name="startIndex">The start index.</param>
        /// <param name="limit">The item limit.</param>
        /// <param name="searchTerm">The search term.</param>
        /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
        /// <param name="mediaTypes">Optional. Filter by MediaType. Allows multiple, comma delimited.</param>
        /// <param name="enableUserData">Optional. Include user data.</param>
        /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
        /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
        /// <param name="excludeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.</param>
        /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on the item type. This allows multiple, comma delimited.</param>
        /// <param name="enableTotalRecordCount">Optional. Enable the total record count.</param>
        /// <param name="enableImages">Optional. Include image information in output.</param>
        /// <param name="excludeActiveSessions">Optional. Whether to exclude the currently active sessions.</param>
        /// <response code="200">Items returned.</response>
        /// <returns>A <see cref="QueryResult{BaseItemDto}"/> with the items that are resumable.</returns>
        [HttpGet("Users/{userId}/Items/Resume")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        public ActionResult<QueryResult<BaseItemDto>> GetResumeItems(
            [FromRoute, Required] Guid userId,
            [FromQuery] int? startIndex,
            [FromQuery] int? limit,
            [FromQuery] string? searchTerm,
            [FromQuery] Guid? parentId,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ItemFields[] fields,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] string[] mediaTypes,
            [FromQuery] bool? enableUserData,
            [FromQuery] int? imageTypeLimit,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] ImageType[] enableImageTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] BaseItemKind[] excludeItemTypes,
            [FromQuery, ModelBinder(typeof(CommaDelimitedArrayModelBinder))] BaseItemKind[] includeItemTypes,
            [FromQuery] bool enableTotalRecordCount = true,
            [FromQuery] bool? enableImages = true,
            [FromQuery] bool excludeActiveSessions = false)
        {
            var user = _userManager.GetUserById(userId);
            var parentIdGuid = parentId ?? Guid.Empty;
            var dtoOptions = new DtoOptions { Fields = fields }
                .AddClientFields(Request)
                .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);

            var ancestorIds = Array.Empty<Guid>();

            var excludeFolderIds = user.GetPreferenceValues<Guid>(PreferenceKind.LatestItemExcludes);
            if (parentIdGuid.Equals(default) && excludeFolderIds.Length > 0)
            {
                ancestorIds = _libraryManager.GetUserRootFolder().GetChildren(user, true)
                    .Where(i => i is Folder)
                    .Where(i => !excludeFolderIds.Contains(i.Id))
                    .Select(i => i.Id)
                    .ToArray();
            }

            var excludeItemIds = Array.Empty<Guid>();
            if (excludeActiveSessions)
            {
                excludeItemIds = _sessionManager.Sessions
                    .Where(s => s.UserId.Equals(userId) && s.NowPlayingItem != null)
                    .Select(s => s.NowPlayingItem.Id)
                    .ToArray();
            }

            var itemsResult = _libraryManager.GetItemsResult(new InternalItemsQuery(user)
            {
                OrderBy = new[] { (ItemSortBy.DatePlayed, SortOrder.Descending) },
                IsResumable = true,
                StartIndex = startIndex,
                Limit = limit,
                ParentId = parentIdGuid,
                Recursive = true,
                DtoOptions = dtoOptions,
                MediaTypes = mediaTypes,
                IsVirtualItem = false,
                CollapseBoxSetItems = false,
                EnableTotalRecordCount = enableTotalRecordCount,
                AncestorIds = ancestorIds,
                IncludeItemTypes = includeItemTypes,
                ExcludeItemTypes = excludeItemTypes,
                SearchTerm = searchTerm,
                ExcludeItemIds = excludeItemIds
            });

            var returnItems = _dtoService.GetBaseItemDtos(itemsResult.Items, dtoOptions, user);

            return new QueryResult<BaseItemDto>(
                startIndex,
                itemsResult.TotalRecordCount,
                returnItems);
        }
    }
}