using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Api.Extensions;
using Jellyfin.Api.Helpers;
using Jellyfin.Api.ModelBinders;
using Jellyfin.Data.Enums;
using Jellyfin.Database.Implementations.Entities;
using Jellyfin.Extensions;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Querying;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
namespace Jellyfin.Api.Controllers;
/// 
/// User library controller.
/// 
[Route("")]
[Authorize]
public class UserLibraryController : BaseJellyfinApiController
{
    private readonly IUserManager _userManager;
    private readonly IUserDataManager _userDataRepository;
    private readonly ILibraryManager _libraryManager;
    private readonly IDtoService _dtoService;
    private readonly IUserViewManager _userViewManager;
    private readonly IFileSystem _fileSystem;
    /// 
    /// Initializes a new instance of the  class.
    /// 
    /// Instance of the  interface.
    /// Instance of the  interface.
    /// Instance of the  interface.
    /// Instance of the  interface.
    /// Instance of the  interface.
    /// Instance of the  interface.
    public UserLibraryController(
        IUserManager userManager,
        IUserDataManager userDataRepository,
        ILibraryManager libraryManager,
        IDtoService dtoService,
        IUserViewManager userViewManager,
        IFileSystem fileSystem)
    {
        _userManager = userManager;
        _userDataRepository = userDataRepository;
        _libraryManager = libraryManager;
        _dtoService = dtoService;
        _userViewManager = userViewManager;
        _fileSystem = fileSystem;
    }
    /// 
    /// Gets an item from a user's library.
    /// 
    /// User id.
    /// Item id.
    /// Item returned.
    /// An  containing the item.
    [HttpGet("Items/{itemId}")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public async Task> GetItem(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        await RefreshItemOnDemandIfNeeded(item).ConfigureAwait(false);
        var dtoOptions = new DtoOptions().AddClientFields(User);
        return _dtoService.GetBaseItemDto(item, dtoOptions, user);
    }
    /// 
    /// Gets an item from a user's library.
    /// 
    /// User id.
    /// Item id.
    /// Item returned.
    /// An  containing the item.
    [HttpGet("Users/{userId}/Items/{itemId}")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public Task> GetItemLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => GetItem(userId, itemId);
    /// 
    /// Gets the root folder from a user's library.
    /// 
    /// User id.
    /// Root folder returned.
    /// An  containing the user's root folder.
    [HttpGet("Items/Root")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult GetRootFolder([FromQuery] Guid? userId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = _libraryManager.GetUserRootFolder();
        var dtoOptions = new DtoOptions().AddClientFields(User);
        return _dtoService.GetBaseItemDto(item, dtoOptions, user);
    }
    /// 
    /// Gets the root folder from a user's library.
    /// 
    /// User id.
    /// Root folder returned.
    /// An  containing the user's root folder.
    [HttpGet("Users/{userId}/Items/Root")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult GetRootFolderLegacy(
        [FromRoute, Required] Guid userId)
        => GetRootFolder(userId);
    /// 
    /// Gets intros to play before the main media item plays.
    /// 
    /// User id.
    /// Item id.
    /// Intros returned.
    /// An  containing the intros to play.
    [HttpGet("Items/{itemId}/Intros")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public async Task>> GetIntros(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        var items = await _libraryManager.GetIntros(item, user).ConfigureAwait(false);
        var dtoOptions = new DtoOptions().AddClientFields(User);
        var dtos = items.Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user)).ToArray();
        return new QueryResult(dtos);
    }
    /// 
    /// Gets intros to play before the main media item plays.
    /// 
    /// User id.
    /// Item id.
    /// Intros returned.
    /// An  containing the intros to play.
    [HttpGet("Users/{userId}/Items/{itemId}/Intros")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public Task>> GetIntrosLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => GetIntros(userId, itemId);
    /// 
    /// Marks an item as a favorite.
    /// 
    /// User id.
    /// Item id.
    /// Item marked as favorite.
    /// An  containing the .
    [HttpPost("UserFavoriteItems/{itemId}")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult MarkFavoriteItem(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        return MarkFavorite(user, item, true);
    }
    /// 
    /// Marks an item as a favorite.
    /// 
    /// User id.
    /// Item id.
    /// Item marked as favorite.
    /// An  containing the .
    [HttpPost("Users/{userId}/FavoriteItems/{itemId}")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult MarkFavoriteItemLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => MarkFavoriteItem(userId, itemId);
    /// 
    /// Unmarks item as a favorite.
    /// 
    /// User id.
    /// Item id.
    /// Item unmarked as favorite.
    /// An  containing the .
    [HttpDelete("UserFavoriteItems/{itemId}")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult UnmarkFavoriteItem(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        return MarkFavorite(user, item, false);
    }
    /// 
    /// Unmarks item as a favorite.
    /// 
    /// User id.
    /// Item id.
    /// Item unmarked as favorite.
    /// An  containing the .
    [HttpDelete("Users/{userId}/FavoriteItems/{itemId}")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult UnmarkFavoriteItemLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => UnmarkFavoriteItem(userId, itemId);
    /// 
    /// Deletes a user's saved personal rating for an item.
    /// 
    /// User id.
    /// Item id.
    /// Personal rating removed.
    /// An  containing the .
    [HttpDelete("UserItems/{itemId}/Rating")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult DeleteUserItemRating(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        return UpdateUserItemRatingInternal(user, item, null);
    }
    /// 
    /// Deletes a user's saved personal rating for an item.
    /// 
    /// User id.
    /// Item id.
    /// Personal rating removed.
    /// An  containing the .
    [HttpDelete("Users/{userId}/Items/{itemId}/Rating")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult DeleteUserItemRatingLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => DeleteUserItemRating(userId, itemId);
    /// 
    /// Updates a user's rating for an item.
    /// 
    /// User id.
    /// Item id.
    /// Whether this  is likes.
    /// Item rating updated.
    /// An  containing the .
    [HttpPost("UserItems/{itemId}/Rating")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult UpdateUserItemRating(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId,
        [FromQuery] bool? likes)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        return UpdateUserItemRatingInternal(user, item, likes);
    }
    /// 
    /// Updates a user's rating for an item.
    /// 
    /// User id.
    /// Item id.
    /// Whether this  is likes.
    /// Item rating updated.
    /// An  containing the .
    [HttpPost("Users/{userId}/Items/{itemId}/Rating")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult UpdateUserItemRatingLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId,
        [FromQuery] bool? likes)
        => UpdateUserItemRating(userId, itemId, likes);
    /// 
    /// Gets local trailers for an item.
    /// 
    /// User id.
    /// Item id.
    /// An  containing the item's local trailers.
    /// The items local trailers.
    [HttpGet("Items/{itemId}/LocalTrailers")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult> GetLocalTrailers(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        var dtoOptions = new DtoOptions().AddClientFields(User);
        if (item is IHasTrailers hasTrailers)
        {
            var trailers = hasTrailers.LocalTrailers;
            return Ok(_dtoService.GetBaseItemDtos(trailers, dtoOptions, user, item).AsEnumerable());
        }
        return Ok(item.GetExtras()
            .Where(e => e.ExtraType == ExtraType.Trailer)
            .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item)));
    }
    /// 
    /// Gets local trailers for an item.
    /// 
    /// User id.
    /// Item id.
    /// An  containing the item's local trailers.
    /// The items local trailers.
    [HttpGet("Users/{userId}/Items/{itemId}/LocalTrailers")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult> GetLocalTrailersLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => GetLocalTrailers(userId, itemId);
    /// 
    /// Gets special features for an item.
    /// 
    /// User id.
    /// Item id.
    /// Special features returned.
    /// An  containing the special features.
    [HttpGet("Items/{itemId}/SpecialFeatures")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult> GetSpecialFeatures(
        [FromQuery] Guid? userId,
        [FromRoute, Required] Guid itemId)
    {
        userId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(userId.Value);
        if (user is null)
        {
            return NotFound();
        }
        var item = itemId.IsEmpty()
            ? _libraryManager.GetUserRootFolder()
            : _libraryManager.GetItemById(itemId, user);
        if (item is null)
        {
            return NotFound();
        }
        var dtoOptions = new DtoOptions().AddClientFields(User);
        return Ok(item
            .GetExtras()
            .Where(i => i.ExtraType.HasValue && BaseItem.DisplayExtraTypes.Contains(i.ExtraType.Value))
            .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item)));
    }
    /// 
    /// Gets special features for an item.
    /// 
    /// User id.
    /// Item id.
    /// Special features returned.
    /// An  containing the special features.
    [HttpGet("Users/{userId}/Items/{itemId}/SpecialFeatures")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult> GetSpecialFeaturesLegacy(
        [FromRoute, Required] Guid userId,
        [FromRoute, Required] Guid itemId)
        => GetSpecialFeatures(userId, itemId);
    /// 
    /// Gets latest media.
    /// 
    /// User id.
    /// Specify this to localize the search to a specific item or folder. Omit to use the root.
    /// Optional. Specify additional fields of information to return in the output.
    /// Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.
    /// Filter by items that are played, or not.
    /// Optional. include image information in output.
    /// Optional. the max number of images to return, per image type.
    /// Optional. The image types to include in the output.
    /// Optional. include user data.
    /// Return item limit.
    /// Whether or not to group items into a parent container.
    /// Latest media returned.
    /// An  containing the latest media.
    [HttpGet("Items/Latest")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult> GetLatestMedia(
        [FromQuery] Guid? userId,
        [FromQuery] Guid? parentId,
        [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] ItemFields[] fields,
        [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] BaseItemKind[] includeItemTypes,
        [FromQuery] bool? isPlayed,
        [FromQuery] bool? enableImages,
        [FromQuery] int? imageTypeLimit,
        [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] ImageType[] enableImageTypes,
        [FromQuery] bool? enableUserData,
        [FromQuery] int limit = 20,
        [FromQuery] bool groupItems = true)
    {
        var requestUserId = RequestHelpers.GetUserId(User, userId);
        var user = _userManager.GetUserById(requestUserId);
        if (user is null)
        {
            return NotFound();
        }
        if (!isPlayed.HasValue)
        {
            if (user.HidePlayedInLatest)
            {
                isPlayed = false;
            }
        }
        var dtoOptions = new DtoOptions { Fields = fields }
            .AddClientFields(User)
            .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
        var list = _userViewManager.GetLatestItems(
            new LatestItemsQuery
            {
                GroupItems = groupItems,
                IncludeItemTypes = includeItemTypes,
                IsPlayed = isPlayed,
                Limit = limit,
                ParentId = parentId ?? Guid.Empty,
                User = user,
            },
            dtoOptions);
        var dtos = list.Select(i =>
        {
            var item = i.Item2[0];
            var childCount = 0;
            if (i.Item1 is not null && (i.Item2.Count > 1 || i.Item1 is MusicAlbum))
            {
                item = i.Item1;
                childCount = i.Item2.Count;
            }
            var dto = _dtoService.GetBaseItemDto(item, dtoOptions, user);
            dto.ChildCount = childCount;
            return dto;
        });
        return Ok(dtos);
    }
    /// 
    /// Gets latest media.
    /// 
    /// User id.
    /// Specify this to localize the search to a specific item or folder. Omit to use the root.
    /// Optional. Specify additional fields of information to return in the output.
    /// Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.
    /// Filter by items that are played, or not.
    /// Optional. include image information in output.
    /// Optional. the max number of images to return, per image type.
    /// Optional. The image types to include in the output.
    /// Optional. include user data.
    /// Return item limit.
    /// Whether or not to group items into a parent container.
    /// Latest media returned.
    /// An  containing the latest media.
    [HttpGet("Users/{userId}/Items/Latest")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    [Obsolete("Kept for backwards compatibility")]
    [ApiExplorerSettings(IgnoreApi = true)]
    public ActionResult> GetLatestMediaLegacy(
        [FromRoute, Required] Guid userId,
        [FromQuery] Guid? parentId,
        [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] ItemFields[] fields,
        [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] BaseItemKind[] includeItemTypes,
        [FromQuery] bool? isPlayed,
        [FromQuery] bool? enableImages,
        [FromQuery] int? imageTypeLimit,
        [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] ImageType[] enableImageTypes,
        [FromQuery] bool? enableUserData,
        [FromQuery] int limit = 20,
        [FromQuery] bool groupItems = true)
        => GetLatestMedia(
            userId,
            parentId,
            fields,
            includeItemTypes,
            isPlayed,
            enableImages,
            imageTypeLimit,
            enableImageTypes,
            enableUserData,
            limit,
            groupItems);
    private async Task RefreshItemOnDemandIfNeeded(BaseItem item)
    {
        if (item is Person)
        {
            var hasMetadata = !string.IsNullOrWhiteSpace(item.Overview) && item.HasImage(ImageType.Primary);
            var performFullRefresh = !hasMetadata && (DateTime.UtcNow - item.DateLastRefreshed).TotalDays >= 3;
            if (!hasMetadata)
            {
                var options = new MetadataRefreshOptions(new DirectoryService(_fileSystem))
                {
                    MetadataRefreshMode = MetadataRefreshMode.FullRefresh,
                    ImageRefreshMode = MetadataRefreshMode.FullRefresh,
                    ForceSave = performFullRefresh
                };
                await item.RefreshMetadata(options, CancellationToken.None).ConfigureAwait(false);
            }
        }
    }
    /// 
    /// Marks the favorite.
    /// 
    /// The user.
    /// The item.
    /// if set to true [is favorite].
    private UserItemDataDto MarkFavorite(User user, BaseItem item, bool isFavorite)
    {
        // Get the user data for this item
        var data = _userDataRepository.GetUserData(user, item);
        if (data is not null)
        {
            // Set favorite status
            data.IsFavorite = isFavorite;
            _userDataRepository.SaveUserData(user, item, data, UserDataSaveReason.UpdateUserRating, CancellationToken.None);
        }
        return _userDataRepository.GetUserDataDto(item, user)!;
    }
    /// 
    /// Updates the user item rating.
    /// 
    /// The user.
    /// The item.
    /// if set to true [likes].
    private UserItemDataDto? UpdateUserItemRatingInternal(User user, BaseItem item, bool? likes)
    {
        // Get the user data for this item
        var data = _userDataRepository.GetUserData(user, item);
        if (data is not null)
        {
            data.Likes = likes;
            _userDataRepository.SaveUserData(user, item, data, UserDataSaveReason.UpdateUserRating, CancellationToken.None);
        }
        return _userDataRepository.GetUserDataDto(item, user);
    }
}