jellyfin/MediaBrowser.Controller/Library/DtoBuilder.cs

924 lines
30 KiB
C#
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using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Model.Drawing;
using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Querying;
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Library
{
/// <summary>
/// Generates DTO's from domain entities
/// </summary>
public class DtoBuilder
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{
/// <summary>
/// The index folder delimeter
/// </summary>
const string IndexFolderDelimeter = "-index-";
private readonly ILogger _logger;
private readonly ILibraryManager _libraryManager;
public DtoBuilder(ILogger logger, ILibraryManager libraryManager)
{
_logger = logger;
_libraryManager = libraryManager;
}
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/// <summary>
/// Gets the dto base item.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="fields">The fields.</param>
/// <returns>Task{DtoBaseItem}.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public async Task<BaseItemDto> GetBaseItemDto(BaseItem item, List<ItemFields> fields)
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{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (fields == null)
{
throw new ArgumentNullException("fields");
}
var dto = new BaseItemDto();
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var tasks = new List<Task>();
if (fields.Contains(ItemFields.PrimaryImageAspectRatio))
{
try
{
tasks.Add(AttachPrimaryImageAspectRatio(dto, item));
}
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);
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}
}
if (fields.Contains(ItemFields.Studios))
{
dto.Studios = item.Studios;
}
if (fields.Contains(ItemFields.People))
{
tasks.Add(AttachPeople(dto, item));
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}
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;
}
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/// <summary>
/// Converts a BaseItem to a DTOBaseItem
/// </summary>
/// <param name="item">The item.</param>
/// <param name="user">The user.</param>
/// <param name="fields">The fields.</param>
/// <returns>Task{DtoBaseItem}.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public async Task<BaseItemDto> GetBaseItemDto(BaseItem item, User user, List<ItemFields> fields)
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{
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();
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var tasks = new List<Task>();
if (fields.Contains(ItemFields.PrimaryImageAspectRatio))
{
try
{
tasks.Add(AttachPrimaryImageAspectRatio(dto, item));
}
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);
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}
}
if (fields.Contains(ItemFields.Studios))
{
dto.Studios = item.Studios;
}
if (fields.Contains(ItemFields.People))
{
tasks.Add(AttachPeople(dto, item));
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}
AttachBasicFields(dto, item, fields);
AttachUserSpecificInfo(dto, item, user, fields);
// Make sure all the tasks we kicked off have completed.
if (tasks.Count > 0)
{
await Task.WhenAll(tasks).ConfigureAwait(false);
}
return dto;
}
/// <summary>
/// Attaches the user specific info.
/// </summary>
/// <param name="dto">The dto.</param>
/// <param name="item">The item.</param>
/// <param name="user">The user.</param>
/// <param name="fields">The fields.</param>
private void AttachUserSpecificInfo(BaseItemDto dto, BaseItem item, User user, List<ItemFields> fields)
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{
if (fields.Contains(ItemFields.UserData))
{
var userData = item.GetUserData(user, false);
if (userData != null)
{
dto.UserData = GetUserItemDataDto(userData);
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}
}
if (item.IsFolder && fields.Contains(ItemFields.DisplayPreferences))
{
dto.DisplayPreferences = ((Folder)item).GetDisplayPrefs(user, false) ?? new DisplayPreferences { UserId = user.Id };
}
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();
SetSpecialCounts(folder, user, dto);
}
}
}
/// <summary>
/// Attaches the primary image aspect ratio.
/// </summary>
/// <param name="dto">The dto.</param>
/// <param name="item">The item.</param>
/// <returns>Task.</returns>
private async Task AttachPrimaryImageAspectRatio(IItemDto dto, BaseItem item)
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{
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.Value.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);
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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;
}
/// <summary>
/// Sets simple property values on a DTOBaseItem
/// </summary>
/// <param name="dto">The dto.</param>
/// <param name="item">The item.</param>
/// <param name="fields">The fields.</param>
private void AttachBasicFields(BaseItemDto dto, BaseItem item, List<ItemFields> fields)
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{
if (fields.Contains(ItemFields.DateCreated))
{
dto.DateCreated = item.DateCreated;
}
if (fields.Contains(ItemFields.DisplayMediaType))
{
dto.DisplayMediaType = item.DisplayMediaType;
}
dto.AspectRatio = item.AspectRatio;
dto.BackdropImageTags = GetBackdropImageTags(item);
if (fields.Contains(ItemFields.Genres))
{
dto.Genres = item.Genres;
}
if (item.Images != null)
{
dto.ImageTags = new Dictionary<ImageType, Guid>();
foreach (var image in item.Images)
{
ImageType type;
if (Enum.TryParse(image.Key, true, out type))
{
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;
var localTrailerCount = item.LocalTrailers == null ? 0 : item.LocalTrailers.Count;
if (localTrailerCount > 0)
{
dto.LocalTrailerCount = localTrailerCount;
}
dto.Name = item.Name;
dto.OfficialRating = item.OfficialRating;
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var hasOverview = fields.Contains(ItemFields.Overview);
var hasHtmlOverview = fields.Contains(ItemFields.OverviewHtml);
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if (hasOverview || hasHtmlOverview)
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{
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var strippedOverview = string.IsNullOrEmpty(item.Overview) ? item.Overview : item.Overview.StripHtml();
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if (hasOverview)
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{
dto.Overview = strippedOverview;
}
// Only supply the html version if there was actually html content
if (hasHtmlOverview)
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{
dto.OverviewHtml = item.Overview;
}
}
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// 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
var audio = item as Audio;
if (audio != null)
{
if (fields.Contains(ItemFields.AudioInfo))
{
dto.Album = audio.Album;
dto.AlbumArtist = audio.AlbumArtist;
dto.Artist = audio.Artist;
}
}
// Add video info
var video = item as Video;
if (video != null)
{
dto.VideoType = video.VideoType;
dto.VideoFormat = video.VideoFormat;
dto.IsoType = video.IsoType;
if (fields.Contains(ItemFields.Chapters) && video.Chapters != null)
{
dto.Chapters = video.Chapters.Select(c => GetChapterInfoDto(c, item)).ToList();
}
}
if (fields.Contains(ItemFields.MediaStreams))
{
// Add VideoInfo
var iHasMediaStreams = item as IHasMediaStreams;
if (iHasMediaStreams != null)
{
dto.MediaStreams = iHasMediaStreams.MediaStreams;
}
}
// Add MovieInfo
var movie = item as Movie;
if (movie != null)
{
var specialFeatureCount = movie.SpecialFeatures == null ? 0 : movie.SpecialFeatures.Count;
if (specialFeatureCount > 0)
{
dto.SpecialFeatureCount = specialFeatureCount;
}
}
if (fields.Contains(ItemFields.SeriesInfo))
{
// Add SeriesInfo
var series = item as Series;
if (series != null)
{
dto.AirDays = series.AirDays;
dto.AirTime = series.AirTime;
dto.Status = series.Status;
}
// Add EpisodeInfo
var episode = item as Episode;
if (episode != null)
{
series = item.FindParent<Series>();
dto.SeriesId = GetClientItemId(series);
dto.SeriesName = series.Name;
}
// Add SeasonInfo
var season = item as Season;
if (season != null)
{
series = item.FindParent<Series>();
dto.SeriesId = GetClientItemId(series);
dto.SeriesName = series.Name;
}
}
}
/// <summary>
/// Since it can be slow to make all of these calculations independently, this method will provide a way to do them all at once
/// </summary>
/// <param name="folder">The folder.</param>
/// <param name="user">The user.</param>
/// <param name="dto">The dto.</param>
private static void SetSpecialCounts(Folder folder, User user, BaseItemDto dto)
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{
var rcentlyAddedItemCount = 0;
var recursiveItemCount = 0;
double totalPercentPlayed = 0;
// Loop through each recursive child
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foreach (var child in folder.GetRecursiveChildren(user).Where(i => !i.IsFolder))
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{
var userdata = child.GetUserData(user, false);
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recursiveItemCount++;
// Check is recently added
if (child.IsRecentlyAdded(user))
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{
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rcentlyAddedItemCount++;
}
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// Incrememt totalPercentPlayed
if (userdata != null)
{
if (userdata.PlayCount > 0)
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{
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totalPercentPlayed += 100;
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}
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else if (userdata.PlaybackPositionTicks > 0 && child.RunTimeTicks.HasValue && child.RunTimeTicks.Value > 0)
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{
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double itemPercent = userdata.PlaybackPositionTicks;
itemPercent /= child.RunTimeTicks.Value;
totalPercentPlayed += itemPercent;
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}
}
}
dto.RecursiveItemCount = recursiveItemCount;
dto.RecentlyAddedItemCount = rcentlyAddedItemCount;
if (recursiveItemCount > 0)
{
dto.PlayedPercentage = totalPercentPlayed / recursiveItemCount;
}
}
/// <summary>
/// Attaches People DTO's to a DTOBaseItem
/// </summary>
/// <param name="dto">The dto.</param>
/// <param name="item">The item.</param>
/// <param name="libraryManager">The library manager.</param>
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/// <returns>Task.</returns>
private async Task AttachPeople(BaseItemDto dto, BaseItem item)
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{
if (item.People == null)
{
return;
}
// Attach People by transforming them into BaseItemPerson (DTO)
dto.People = new BaseItemPerson[item.People.Count];
var entities = await Task.WhenAll(item.People.Select(c =>
Task.Run(async () =>
{
try
{
return await _libraryManager.GetPerson(c.Name).ConfigureAwait(false);
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}
catch (IOException ex)
{
_logger.ErrorException("Error getting person {0}", ex, c.Name);
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return null;
}
})
)).ConfigureAwait(false);
for (var i = 0; i < item.People.Count; i++)
{
var person = item.People[i];
var baseItemPerson = new BaseItemPerson
{
Name = person.Name,
Role = person.Role,
Type = person.Type
};
var ibnObject = entities[i];
if (ibnObject != null)
{
var primaryImagePath = ibnObject.PrimaryImagePath;
if (!string.IsNullOrEmpty(primaryImagePath))
{
baseItemPerson.PrimaryImageTag = Kernel.Instance.ImageManager.GetImageCacheTag(ibnObject, ImageType.Primary, primaryImagePath);
}
}
dto.People[i] = baseItemPerson;
}
}
/// <summary>
/// If an item does not any backdrops, this can be used to find the first parent that does have one
/// </summary>
/// <param name="item">The item.</param>
/// <returns>BaseItem.</returns>
private BaseItem GetParentBackdropItem(BaseItem item)
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{
var parent = item.Parent;
while (parent != null)
{
if (parent.BackdropImagePaths != null && parent.BackdropImagePaths.Count > 0)
{
return parent;
}
parent = parent.Parent;
}
return null;
}
/// <summary>
/// If an item does not have a logo, this can be used to find the first parent that does have one
/// </summary>
/// <param name="item">The item.</param>
/// <returns>BaseItem.</returns>
private BaseItem GetParentLogoItem(BaseItem item)
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{
var parent = item.Parent;
while (parent != null)
{
if (parent.HasImage(ImageType.Logo))
{
return parent;
}
parent = parent.Parent;
}
return null;
}
/// <summary>
/// Gets the library update info.
/// </summary>
/// <param name="changeEvent">The <see cref="ChildrenChangedEventArgs" /> instance containing the event data.</param>
/// <returns>LibraryUpdateInfo.</returns>
public static LibraryUpdateInfo GetLibraryUpdateInfo(ChildrenChangedEventArgs changeEvent)
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{
return new LibraryUpdateInfo
{
Folder = GetBaseItemInfo(changeEvent.Folder),
ItemsAdded = changeEvent.ItemsAdded.Select(GetBaseItemInfo),
ItemsRemoved = changeEvent.ItemsRemoved.Select(i => i.Id),
ItemsUpdated = changeEvent.ItemsUpdated.Select(i => i.Id)
};
}
/// <summary>
/// Converts a UserItemData to a DTOUserItemData
/// </summary>
/// <param name="data">The data.</param>
/// <returns>DtoUserItemData.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
public UserItemDataDto GetUserItemDataDto(UserItemData data)
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{
if (data == null)
{
throw new ArgumentNullException();
}
return new UserItemDataDto
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{
IsFavorite = data.IsFavorite,
Likes = data.Likes,
PlaybackPositionTicks = data.PlaybackPositionTicks,
PlayCount = data.PlayCount,
Rating = data.Rating,
Played = data.Played
};
}
/// <summary>
/// Gets the chapter info dto.
/// </summary>
/// <param name="chapterInfo">The chapter info.</param>
/// <param name="item">The item.</param>
/// <returns>ChapterInfoDto.</returns>
private ChapterInfoDto GetChapterInfoDto(ChapterInfo chapterInfo, BaseItem item)
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{
var dto = new ChapterInfoDto
{
Name = chapterInfo.Name,
StartPositionTicks = chapterInfo.StartPositionTicks
};
if (!string.IsNullOrEmpty(chapterInfo.ImagePath))
{
dto.ImageTag = Kernel.Instance.ImageManager.GetImageCacheTag(item, ImageType.Chapter, chapterInfo.ImagePath);
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}
return dto;
}
/// <summary>
/// Converts a BaseItem to a BaseItemInfo
/// </summary>
/// <param name="item">The item.</param>
/// <returns>BaseItemInfo.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public static BaseItemInfo GetBaseItemInfo(BaseItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
var info = new BaseItemInfo
{
Id = GetClientItemId(item),
Name = item.Name,
Type = item.GetType().Name,
IsFolder = item.IsFolder,
RunTimeTicks = item.RunTimeTicks
};
var imagePath = item.PrimaryImagePath;
if (!string.IsNullOrEmpty(imagePath))
{
info.PrimaryImageTag = Kernel.Instance.ImageManager.GetImageCacheTag(item, ImageType.Primary, imagePath);
}
if (item.BackdropImagePaths != null && item.BackdropImagePaths.Count > 0)
{
imagePath = item.BackdropImagePaths[0];
if (!string.IsNullOrEmpty(imagePath))
{
info.BackdropImageTag = Kernel.Instance.ImageManager.GetImageCacheTag(item, ImageType.Backdrop, imagePath);
}
}
return info;
}
/// <summary>
/// Gets client-side Id of a server-side BaseItem
/// </summary>
/// <param name="item">The item.</param>
/// <returns>System.String.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public static string GetClientItemId(BaseItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
var indexFolder = item as IndexFolder;
if (indexFolder != null)
{
return GetClientItemId(indexFolder.Parent) + IndexFolderDelimeter + (indexFolder.IndexName ?? string.Empty) + IndexFolderDelimeter + indexFolder.Id;
}
return item.Id.ToString();
}
/// <summary>
/// Converts a User to a DTOUser
/// </summary>
/// <param name="user">The user.</param>
/// <returns>DtoUser.</returns>
/// <exception cref="System.ArgumentNullException">user</exception>
public async Task<UserDto> GetUserDto(User user)
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{
if (user == null)
{
throw new ArgumentNullException("user");
}
var dto = new UserDto
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{
Id = user.Id,
Name = user.Name,
HasPassword = !String.IsNullOrEmpty(user.Password),
LastActivityDate = user.LastActivityDate,
LastLoginDate = user.LastLoginDate,
Configuration = user.Configuration
};
var image = user.PrimaryImagePath;
if (!string.IsNullOrEmpty(image))
{
dto.PrimaryImageTag = Kernel.Instance.ImageManager.GetImageCacheTag(user, ImageType.Primary, image);
try
{
await AttachPrimaryImageAspectRatio(dto, user).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, user.Name);
}
}
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return dto;
}
/// <summary>
/// Gets a BaseItem based upon it's client-side item id
/// </summary>
/// <param name="id">The id.</param>
/// <param name="userId">The user id.</param>
/// <returns>BaseItem.</returns>
public static BaseItem GetItemByClientId(string id, IUserManager userManager, ILibraryManager libraryManager, Guid? userId = null)
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{
var isIdEmpty = string.IsNullOrEmpty(id);
// If the item is an indexed folder we have to do a special routine to get it
var isIndexFolder = !isIdEmpty &&
id.IndexOf(IndexFolderDelimeter, StringComparison.OrdinalIgnoreCase) != -1;
if (isIndexFolder)
{
if (userId.HasValue)
{
return GetIndexFolder(id, userId.Value, userManager, libraryManager);
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}
}
BaseItem item = null;
if (userId.HasValue)
{
item = isIdEmpty
? userManager.GetUserById(userId.Value).RootFolder
: libraryManager.GetItemById(new Guid(id), userId.Value);
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}
else if (!isIndexFolder)
{
item = libraryManager.GetItemById(new Guid(id));
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}
// If we still don't find it, look within individual user views
if (item == null && !userId.HasValue)
{
foreach (var user in userManager.Users)
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{
item = GetItemByClientId(id, userManager, libraryManager, user.Id);
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if (item != null)
{
break;
}
}
}
return item;
}
/// <summary>
/// Finds an index folder based on an Id and userId
/// </summary>
/// <param name="id">The id.</param>
/// <param name="userId">The user id.</param>
/// <returns>BaseItem.</returns>
private static BaseItem GetIndexFolder(string id, Guid userId, IUserManager userManager, ILibraryManager libraryManager)
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{
var user = userManager.GetUserById(userId);
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var stringSeparators = new[] { IndexFolderDelimeter };
// Split using the delimeter
var values = id.Split(stringSeparators, StringSplitOptions.None).ToList();
// Get the top folder normally using the first id
var folder = GetItemByClientId(values[0], userManager, libraryManager, userId) as Folder;
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values.RemoveAt(0);
// Get indexed folders using the remaining values in the id string
return GetIndexFolder(values, folder, user);
}
/// <summary>
/// Gets indexed folders based on a list of index names and folder id's
/// </summary>
/// <param name="values">The values.</param>
/// <param name="parentFolder">The parent folder.</param>
/// <param name="user">The user.</param>
/// <returns>BaseItem.</returns>
private static BaseItem GetIndexFolder(List<string> values, Folder parentFolder, User user)
{
// The index name is first
var indexBy = values[0];
// The index folder id is next
var indexFolderId = new Guid(values[1]);
// Remove them from the lst
values.RemoveRange(0, 2);
// Get the IndexFolder
var indexFolder = parentFolder.GetChildren(user, indexBy).FirstOrDefault(i => i.Id == indexFolderId) as Folder;
// Nested index folder
if (values.Count > 0)
{
return GetIndexFolder(values, indexFolder, user);
}
return indexFolder;
}
/// <summary>
/// Gets the backdrop image tags.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>List{System.String}.</returns>
private List<Guid> GetBackdropImageTags(BaseItem item)
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{
if (item.BackdropImagePaths == null)
{
return new List<Guid>();
}
return item.BackdropImagePaths.Select(p => Kernel.Instance.ImageManager.GetImageCacheTag(item, ImageType.Backdrop, p)).ToList();
}
}
}