using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.Drawing;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Querying;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Dto
{
///
/// Generates DTO's from domain entities
///
public class DtoBuilder
{
///
/// The index folder delimeter
///
const string IndexFolderDelimeter = "-index-";
private readonly ILogger _logger;
private readonly ILibraryManager _libraryManager;
private readonly IUserDataRepository _userDataRepository;
public DtoBuilder(ILogger logger, ILibraryManager libraryManager, IUserDataRepository userDataRepository)
{
_logger = logger;
_libraryManager = libraryManager;
_userDataRepository = userDataRepository;
}
///
/// Gets the dto base item.
///
/// The item.
/// The fields.
/// Task{DtoBaseItem}.
/// item
public async Task GetBaseItemDto(BaseItem item, List fields)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (fields == null)
{
throw new ArgumentNullException("fields");
}
var dto = new BaseItemDto();
var tasks = new List();
if (fields.Contains(ItemFields.Studios))
{
tasks.Add(AttachStudios(dto, item));
}
if (fields.Contains(ItemFields.People))
{
tasks.Add(AttachPeople(dto, item));
}
if (fields.Contains(ItemFields.PrimaryImageAspectRatio))
{
try
{
await AttachPrimaryImageAspectRatio(dto, item, _logger).ConfigureAwait(false);
}
catch (Exception ex)
{
// Have to use a catch-all unfortunately because some .net image methods throw plain Exceptions
_logger.ErrorException("Error generating PrimaryImageAspectRatio for {0}", ex, item.Name);
}
}
AttachBasicFields(dto, item, fields);
// Make sure all the tasks we kicked off have completed.
if (tasks.Count > 0)
{
await Task.WhenAll(tasks).ConfigureAwait(false);
}
return dto;
}
///
/// Converts a BaseItem to a DTOBaseItem
///
/// The item.
/// The user.
/// The fields.
/// Task{DtoBaseItem}.
/// item
public async Task GetBaseItemDto(BaseItem item, User user, List fields)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (user == null)
{
throw new ArgumentNullException("user");
}
if (fields == null)
{
throw new ArgumentNullException("fields");
}
var dto = new BaseItemDto();
var tasks = new List();
if (fields.Contains(ItemFields.Studios))
{
tasks.Add(AttachStudios(dto, item));
}
if (fields.Contains(ItemFields.People))
{
tasks.Add(AttachPeople(dto, item));
}
tasks.Add(AttachUserSpecificInfo(dto, item, user, fields));
if (fields.Contains(ItemFields.PrimaryImageAspectRatio))
{
try
{
await AttachPrimaryImageAspectRatio(dto, item, _logger).ConfigureAwait(false);
}
catch (Exception ex)
{
// Have to use a catch-all unfortunately because some .net image methods throw plain Exceptions
_logger.ErrorException("Error generating PrimaryImageAspectRatio for {0}", ex, item.Name);
}
}
AttachBasicFields(dto, item, fields);
// Make sure all the tasks we kicked off have completed.
if (tasks.Count > 0)
{
await Task.WhenAll(tasks).ConfigureAwait(false);
}
return dto;
}
///
/// Attaches the user specific info.
///
/// The dto.
/// The item.
/// The user.
/// The fields.
private async Task AttachUserSpecificInfo(BaseItemDto dto, BaseItem item, User user, List fields)
{
if (fields.Contains(ItemFields.UserData))
{
var userData = await _userDataRepository.GetUserData(user.Id, item.GetUserDataKey()).ConfigureAwait(false);
dto.UserData = GetUserItemDataDto(userData);
}
if (item.IsFolder && fields.Contains(ItemFields.DisplayPreferencesId))
{
dto.DisplayPreferencesId = ((Folder)item).GetDisplayPreferencesId(user.Id).ToString();
}
if (item.IsFolder)
{
if (fields.Contains(ItemFields.ItemCounts))
{
var folder = (Folder)item;
// Skip sorting since all we want is a count
dto.ChildCount = folder.GetChildren(user).Count();
await SetSpecialCounts(folder, user, dto, _userDataRepository).ConfigureAwait(false);
}
}
}
///
/// Attaches the primary image aspect ratio.
///
/// The dto.
/// The item.
/// The _logger.
/// Task.
internal static async Task AttachPrimaryImageAspectRatio(IItemDto dto, BaseItem item, ILogger logger)
{
var path = item.PrimaryImagePath;
if (string.IsNullOrEmpty(path))
{
return;
}
var metaFileEntry = item.ResolveArgs.GetMetaFileByPath(path);
// See if we can avoid a file system lookup by looking for the file in ResolveArgs
var dateModified = metaFileEntry == null ? File.GetLastWriteTimeUtc(path) : metaFileEntry.LastWriteTimeUtc;
ImageSize size;
try
{
size = await Kernel.Instance.ImageManager.GetImageSize(path, dateModified).ConfigureAwait(false);
}
catch (FileNotFoundException)
{
logger.Error("Image file does not exist: {0}", path);
return;
}
catch (Exception ex)
{
logger.ErrorException("Failed to determine primary image aspect ratio for {0}", ex, path);
return;
}
foreach (var enhancer in Kernel.Instance.ImageEnhancers
.Where(i => i.Supports(item, ImageType.Primary)))
{
size = enhancer.GetEnhancedImageSize(item, ImageType.Primary, 0, size);
}
dto.PrimaryImageAspectRatio = size.Width / size.Height;
}
///
/// Sets simple property values on a DTOBaseItem
///
/// The dto.
/// The item.
/// The fields.
private void AttachBasicFields(BaseItemDto dto, BaseItem item, List fields)
{
if (fields.Contains(ItemFields.DateCreated))
{
dto.DateCreated = item.DateCreated;
}
if (fields.Contains(ItemFields.DisplayMediaType))
{
dto.DisplayMediaType = item.DisplayMediaType;
}
if (fields.Contains(ItemFields.Budget))
{
dto.Budget = item.Budget;
}
if (fields.Contains(ItemFields.Revenue))
{
dto.Revenue = item.Revenue;
}
if (fields.Contains(ItemFields.EndDate))
{
dto.EndDate = item.EndDate;
}
if (fields.Contains(ItemFields.HomePageUrl))
{
dto.HomePageUrl = item.HomePageUrl;
}
if (fields.Contains(ItemFields.ProductionLocations))
{
dto.ProductionLocations = item.ProductionLocations;
}
dto.AspectRatio = item.AspectRatio;
dto.BackdropImageTags = GetBackdropImageTags(item);
dto.ScreenshotImageTags = GetScreenshotImageTags(item);
if (fields.Contains(ItemFields.Genres))
{
dto.Genres = item.Genres;
}
if (item.Images != null)
{
dto.ImageTags = new Dictionary();
foreach (var image in item.Images)
{
var type = image.Key;
dto.ImageTags[type] = Kernel.Instance.ImageManager.GetImageCacheTag(item, type, image.Value);
}
}
dto.Id = GetClientItemId(item);
dto.IndexNumber = item.IndexNumber;
dto.IsFolder = item.IsFolder;
dto.Language = item.Language;
dto.MediaType = item.MediaType;
dto.LocationType = item.LocationType;
dto.CriticRating = item.CriticRating;
if (fields.Contains(ItemFields.CriticRatingSummary))
{
dto.CriticRatingSummary = item.CriticRatingSummary;
}
var localTrailerCount = item.LocalTrailers == null ? 0 : item.LocalTrailers.Count;
if (localTrailerCount > 0)
{
dto.LocalTrailerCount = localTrailerCount;
}
dto.Name = item.Name;
dto.OfficialRating = item.OfficialRating;
var hasOverview = fields.Contains(ItemFields.Overview);
var hasHtmlOverview = fields.Contains(ItemFields.OverviewHtml);
if (hasOverview || hasHtmlOverview)
{
var strippedOverview = string.IsNullOrEmpty(item.Overview) ? item.Overview : item.Overview.StripHtml();
if (hasOverview)
{
dto.Overview = strippedOverview;
}
// Only supply the html version if there was actually html content
if (hasHtmlOverview)
{
dto.OverviewHtml = item.Overview;
}
}
// If there are no backdrops, indicate what parent has them in case the Ui wants to allow inheritance
if (dto.BackdropImageTags.Count == 0)
{
var parentWithBackdrop = GetParentBackdropItem(item);
if (parentWithBackdrop != null)
{
dto.ParentBackdropItemId = GetClientItemId(parentWithBackdrop);
dto.ParentBackdropImageTags = GetBackdropImageTags(parentWithBackdrop);
}
}
if (item.Parent != null && fields.Contains(ItemFields.ParentId))
{
dto.ParentId = GetClientItemId(item.Parent);
}
dto.ParentIndexNumber = item.ParentIndexNumber;
// If there is no logo, indicate what parent has one in case the Ui wants to allow inheritance
if (!dto.HasLogo)
{
var parentWithLogo = GetParentLogoItem(item);
if (parentWithLogo != null)
{
dto.ParentLogoItemId = GetClientItemId(parentWithLogo);
dto.ParentLogoImageTag = Kernel.Instance.ImageManager.GetImageCacheTag(parentWithLogo, ImageType.Logo, parentWithLogo.GetImage(ImageType.Logo));
}
}
if (fields.Contains(ItemFields.Path))
{
dto.Path = item.Path;
}
dto.PremiereDate = item.PremiereDate;
dto.ProductionYear = item.ProductionYear;
if (fields.Contains(ItemFields.ProviderIds))
{
dto.ProviderIds = item.ProviderIds;
}
dto.RunTimeTicks = item.RunTimeTicks;
if (fields.Contains(ItemFields.SortName))
{
dto.SortName = item.SortName;
}
if (fields.Contains(ItemFields.Taglines))
{
dto.Taglines = item.Taglines;
}
if (fields.Contains(ItemFields.TrailerUrls))
{
dto.TrailerUrls = item.TrailerUrls;
}
dto.Type = item.GetType().Name;
dto.CommunityRating = item.CommunityRating;
if (item.IsFolder)
{
var folder = (Folder)item;
if (fields.Contains(ItemFields.IndexOptions))
{
dto.IndexOptions = folder.IndexByOptionStrings.ToArray();
}
}
// Add audio info
if (fields.Contains(ItemFields.AudioInfo))
{
var audio = item as Audio;
if (audio != null)
{
dto.Album = audio.Album;
dto.AlbumArtist = audio.AlbumArtist;
dto.Artists = new[] { audio.Artist };
}
var album = item as MusicAlbum;
if (album != null)
{
var songs = album.RecursiveChildren.OfType