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using System;
using System.IO;
using System.Linq;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.IO;
namespace Emby.Server.Implementations.Library
{
/// <summary>
/// Class ResolverHelper.
/// </summary>
public static class ResolverHelper
{
/// <summary>
/// Sets the initial item values.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="parent">The parent.</param>
/// <param name="libraryManager">The library manager.</param>
/// <param name="directoryService">The directory service.</param>
/// <returns>True if initializing was successful.</returns>
/// <exception cref="ArgumentException">Item must have a path.</exception>
public static bool SetInitialItemValues(BaseItem item, Folder? parent, ILibraryManager libraryManager, IDirectoryService directoryService)
{
// This version of the below method has no ItemResolveArgs, so we have to require the path already being set
ArgumentException.ThrowIfNullOrEmpty(item.Path);
// If the resolver didn't specify this
if (parent is not null)
{
item.SetParent(parent);
}
item.Id = libraryManager.GetNewItemId(item.Path, item.GetType());
item.IsLocked = item.Path.IndexOf("[dontfetchmeta]", StringComparison.OrdinalIgnoreCase) != -1 ||
item.GetParents().Any(i => i.IsLocked);
// Make sure DateCreated and DateModified have values
var fileInfo = directoryService.GetFile(item.Path);
if (fileInfo is null)
{
return false;
}
SetDateCreated(item, fileInfo);
EnsureName(item, fileInfo);
return true;
}
/// <summary>
/// Sets the initial item values.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="args">The args.</param>
/// <param name="fileSystem">The file system.</param>
/// <param name="libraryManager">The library manager.</param>
public static void SetInitialItemValues(BaseItem item, ItemResolveArgs args, IFileSystem fileSystem, ILibraryManager libraryManager)
{
// If the resolver didn't specify this
if (string.IsNullOrEmpty(item.Path))
{
item.Path = args.Path;
}
// If the resolver didn't specify this
if (args.Parent is not null)
{
item.SetParent(args.Parent);
}
item.Id = libraryManager.GetNewItemId(item.Path, item.GetType());
// Make sure the item has a name
EnsureName(item, args.FileInfo);
item.IsLocked = item.Path.Contains("[dontfetchmeta]", StringComparison.OrdinalIgnoreCase) ||
item.GetParents().Any(i => i.IsLocked);
// Make sure DateCreated and DateModified have values
EnsureDates(fileSystem, item, args);
}
/// <summary>
/// Ensures the name.
/// </summary>
private static void EnsureName(BaseItem item, FileSystemMetadata fileInfo)
{
// If the subclass didn't supply a name, add it here
if (string.IsNullOrEmpty(item.Name) && !string.IsNullOrEmpty(item.Path))
{
item.Name = fileInfo.IsDirectory ? fileInfo.Name : Path.GetFileNameWithoutExtension(fileInfo.Name);
}
}
/// <summary>
/// Ensures DateCreated and DateModified have values.
/// </summary>
/// <param name="fileSystem">The file system.</param>
/// <param name="item">The item.</param>
/// <param name="args">The args.</param>
private static void EnsureDates(IFileSystem fileSystem, BaseItem item, ItemResolveArgs args)
{
// See if a different path came out of the resolver than what went in
if (!fileSystem.AreEqual(args.Path, item.Path))
{
var childData = args.IsDirectory ? args.GetFileSystemEntryByPath(item.Path) : null;
if (childData is not null)
{
SetDateCreated(item, childData);
}
else
{
var fileData = fileSystem.GetFileSystemInfo(item.Path);
if (fileData.Exists)
{
SetDateCreated(item, fileData);
}
}
}
else
{
SetDateCreated(item, args.FileInfo);
}
}
private static void SetDateCreated(BaseItem item, FileSystemMetadata? info)
{
var config = BaseItem.ConfigurationManager.GetMetadataConfiguration();
if (config.UseFileCreationTimeForDateAdded)
{
// directoryService.getFile may return null
if (info is not null)
{
var dateCreated = info.CreationTimeUtc;
if (dateCreated.Equals(DateTime.MinValue))
{
dateCreated = DateTime.UtcNow;
}
item.DateCreated = dateCreated;
}
}
else
{
item.DateCreated = DateTime.UtcNow;
}
}
}
}
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