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jellyfin/MediaBrowser.Controller/Resolvers/BaseItemResolver.cs

167 lines
5.4 KiB

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using MediaBrowser.Controller.Events;
using MediaBrowser.Model.Entities;
namespace MediaBrowser.Controller.Resolvers
{
public abstract class BaseItemResolver<T> : IBaseItemResolver
where T : BaseItem, new ()
{
protected virtual T Resolve(ItemResolveEventArgs args)
{
return null;
}
/// <summary>
/// Sets initial values on the newly resolved item
/// </summary>
protected virtual void SetItemValues(T item, ItemResolveEventArgs args)
{
// If the subclass didn't specify this
if (string.IsNullOrEmpty(item.Path))
{
item.Path = args.Path;
}
// If the subclass didn't specify this
if (args.Parent != null)
{
item.Parent = args.Parent;
}
item.Id = Kernel.GetMD5(item.Path);
PopulateImages(item, args);
PopulateLocalTrailers(item, args);
}
public BaseItem ResolvePath(ItemResolveEventArgs args)
{
T item = Resolve(args);
if (item != null)
{
// Set initial values on the newly resolved item
SetItemValues(item, args);
// Make sure the item has a name
EnsureName(item);
// Make sure DateCreated and DateModified have values
EnsureDates(item);
}
return item;
}
private void EnsureName(T item)
{
// If the subclass didn't supply a name, add it here
if (string.IsNullOrEmpty(item.Name))
{
item.Name = Path.GetFileNameWithoutExtension(item.Path);
}
}
/// <summary>
/// Ensures DateCreated and DateModified have values
/// </summary>
private void EnsureDates(T item)
{
// If the subclass didn't supply dates, add them here
if (item.DateCreated == DateTime.MinValue)
{
item.DateCreated = Path.IsPathRooted(item.Path) ? File.GetCreationTime(item.Path) : DateTime.Now;
}
if (item.DateModified == DateTime.MinValue)
{
item.DateModified = Path.IsPathRooted(item.Path) ? File.GetLastWriteTime(item.Path) : DateTime.Now;
}
}
/// <summary>
/// Fills in image paths based on files win the folder
/// </summary>
protected virtual void PopulateImages(T item, ItemResolveEventArgs args)
{
List<string> backdropFiles = new List<string>();
foreach (KeyValuePair<string,FileAttributes> file in args.FileSystemChildren)
{
if (file.Value.HasFlag(FileAttributes.Directory))
{
continue;
}
string filePath = file.Key;
string ext = Path.GetExtension(filePath);
// Only support png and jpg files
if (!ext.EndsWith("png", StringComparison.OrdinalIgnoreCase) && !ext.EndsWith("jpg", StringComparison.OrdinalIgnoreCase))
{
continue;
}
string name = Path.GetFileNameWithoutExtension(filePath);
if (name.Equals("folder", StringComparison.OrdinalIgnoreCase))
{
item.PrimaryImagePath = filePath;
}
else if (name.StartsWith("backdrop", StringComparison.OrdinalIgnoreCase))
{
backdropFiles.Add(filePath);
}
if (name.Equals("logo", StringComparison.OrdinalIgnoreCase))
{
item.LogoImagePath = filePath;
}
if (name.Equals("banner", StringComparison.OrdinalIgnoreCase))
{
item.BannerImagePath = filePath;
}
if (name.Equals("art", StringComparison.OrdinalIgnoreCase))
{
item.ArtImagePath = filePath;
}
if (name.Equals("thumb", StringComparison.OrdinalIgnoreCase))
{
item.ThumbnailImagePath = filePath;
}
}
if (backdropFiles.Any())
{
item.BackdropImagePaths = backdropFiles;
}
}
protected virtual void PopulateLocalTrailers(T item, ItemResolveEventArgs args)
{
var trailerPath = args.GetFolderByName("trailers");
if (trailerPath.HasValue)
{
string[] allFiles = Directory.GetFileSystemEntries(trailerPath.Value.Key, "*", SearchOption.TopDirectoryOnly);
item.LocalTrailers = allFiles.Select(f => Kernel.Instance.ItemController.GetItem(f)).OfType<Video>();
}
}
}
/// <summary>
/// Weed this to keep a list of resolvers, since Resolvers are built with generics
/// </summary>
public interface IBaseItemResolver
{
BaseItem ResolvePath(ItemResolveEventArgs args);
}
}