using MediaBrowser.Controller.Entities ;
using MediaBrowser.Controller.Providers ;
using System.IO ;
using System.Threading ;
using System.Threading.Tasks ;
using MediaBrowser.Common.IO ;
using MediaBrowser.Controller.IO ;
using MediaBrowser.Model.IO ;
namespace MediaBrowser.LocalMetadata
{
public abstract class BaseXmlProvider < T > : ILocalMetadataProvider < T > , IHasItemChangeMonitor , IHasOrder
where T : IHasMetadata , new ( )
{
protected IFileSystem FileSystem ;
public async Task < MetadataResult < T > > GetMetadata ( ItemInfo info ,
IDirectoryService directoryService ,
CancellationToken cancellationToken )
{
var result = new MetadataResult < T > ( ) ;
var file = GetXmlFile ( info , directoryService ) ;
if ( file = = null )
{
return result ;
}
var path = file . FullName ;
try
{
result . Item = new T ( ) ;
Fetch ( result , path , cancellationToken ) ;
result . HasMetadata = true ;
}
catch ( FileNotFoundException )
{
result . HasMetadata = false ;
}
catch ( IOException )
{
result . HasMetadata = false ;
}
return result ;
}
protected abstract void Fetch ( MetadataResult < T > result , string path , CancellationToken cancellationToken ) ;
protected BaseXmlProvider ( IFileSystem fileSystem )
{
FileSystem = fileSystem ;
}
protected abstract FileSystemMetadata GetXmlFile ( ItemInfo info , IDirectoryService directoryService ) ;
public bool HasChanged ( IHasMetadata item , IDirectoryService directoryService )
{
var file = GetXmlFile ( new ItemInfo ( item ) , directoryService ) ;
if ( file = = null )
{
return false ;
}
return file . Exists & & FileSystem . GetLastWriteTimeUtc ( file ) > item . DateLastSaved ;
}
public string Name
{
get
{
return XmlProviderUtils . Name ;
}
}
public virtual int Order
{
get
{
// After Nfo
return 1 ;
}
}
}
static class XmlProviderUtils
{
public static string Name
{
get
{
return "Emby Xml" ;
}
}
}
}