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//
// AlbumArtWriterService.cs
//
// Authors:
// Kevin Anthony <Kevin@NosideRacing.com>
//
// Copyright (C) 2011 Kevin Anthony
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using Mono.Addins;
using Banshee.ServiceStack;
using Banshee.Configuration;
using Banshee.Sources;
namespace Banshee.AlbumArtWriter
{
public class AlbumArtWriterService : IExtensionService
{
private bool disposed;
private AlbumArtWriterJob job;
public AlbumArtWriterService ()
{
}
void IExtensionService.Initialize ()
{
/*
* if SavedOrTried = 0, try and download the art
* if SavedOrTried = 1, we have tried this session
* if SavedOrTried = 2, art is already in folder
* if SavedOrTired = 3, we were successful in writing art to folder
*/
if (!ServiceManager.DbConnection.TableExists ("AlbumArtWriter")) {
ServiceManager.DbConnection.Execute (@"
CREATE TABLE AlbumArtWriter (
AlbumID INTEGER UNIQUE,
SavedOrTried INTEGER
)");
DatabaseConfigurationClient.Client.Set<int>("AlbumArtWriter", "Version", 1);
}
if (DatabaseConfigurationClient.Client.Get<int> ("AlbumArtWriter", "Version", 0) < 2) {
ServiceManager.DbConnection.Execute (@"ALTER TABLE AlbumArtWriter ADD COLUMN LastUpdated INTEGER");
DatabaseConfigurationClient.Client.Set<int>("AlbumArtWriter", "Version", 2);
}
if (!ServiceStartup ()) {
ServiceManager.SourceManager.SourceAdded += OnSourceAdded;
}
}
private void OnSourceAdded (SourceAddedArgs args)
{
if (ServiceStartup ()) {
ServiceManager.SourceManager.SourceAdded -= OnSourceAdded;
}
}
private bool ServiceStartup ()
{
if (ServiceManager.SourceManager.MusicLibrary == null) {
return false;
}
Initialize ();
return true;
}
private void Initialize ()
{
ServiceManager.SourceManager.MusicLibrary.TracksAdded += OnTracksAdded;
StartWriterJob ();
}
public void Dispose ()
{
if (disposed) {
return;
}
ServiceManager.SourceManager.MusicLibrary.TracksAdded -= OnTracksAdded;
/* Setting SavedOrTried to 0 where SavedOrTried = 1 allows album art to be written next time */
ServiceManager.DbConnection.Execute (@"UPDATE AlbumArtWriter SET SavedOrTried = 0 WHERE SavedOrTried = 1");
disposed = true;
}
public void StartWriterJob ()
{
if (job == null) {
job = new AlbumArtWriterJob ();
job.Finished += delegate {
job = null;
};
job.Start ();
}
}
private void OnTracksAdded (Source sender, TrackEventArgs args)
{
StartWriterJob ();
}
string IService.ServiceName {
get { return "AlbumArtWriterService"; }
}
}
}
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