using Grl;

public class SimplePlaylist : Object {

	private GLib.List<MediaSource> source_list;

	MainLoop main_loop = new MainLoop (null, false);

	int processed_sources = 0;

	construct {

		var registry = Grl.PluginRegistry.get_default ();

		registry.source_added.connect (source_added_cb);

		registry.source_removed.connect (source_removed_cb);

		if (registry.load_all () == false) {

			error ("Failed to load plugins.");

		}

	}

	public void source_added_cb (MediaPlugin plugin) {

		var source = plugin as MetadataSource;

		var ops = source.supported_operations ();

		if ((ops & Grl.SupportedOps.SEARCH) != 0) {

			debug ("Detected new source availabe: '%s' and it supports search", source.get_name ());

			source_list.append (source as MediaSource);

			debug ("source list size = %u", source_list.length ());

		}

	}

	public void source_removed_cb (MediaPlugin source) {

		debug ("Source '%s' is gone", (source as MetadataSource).get_name ());

	}

	public SimplePlaylist () {

	}

	private void search_cb (Grl.MediaSource source,

							uint browse_id,

							Grl.Media? media,

							uint remaining,

							GLib.Error? error) {

		if (error != null) {

			critical ("Error: %s", error.message);

		}

		if (media != null && (media is MediaAudio || media is MediaVideo)) {

                var url = media.get_url ();

                if (url != null) {

                        print ("%s\n", media.get_url ());

                }

		}

		if (remaining == 0) {

			processed_sources++;

			debug ("%s finished", source.get_name ());

		}

		debug ("processed sources %d - source list size %u", processed_sources, source_list.length ());

		if (processed_sources == source_list.length ()) {

			main_loop.quit ();

		}

	}

	public void search (string q) {

		unowned GLib.List keys = Grl.MetadataKey.list_new (Grl.MetadataKey.ID, Grl.MetadataKey.TITLE, Grl.MetadataKey.URL);

		foreach (MediaSource source in source_list) {

			debug ("%s - %s", source.get_name (), q);

			var caps = source.get_caps (Grl.SupportedOps.SEARCH);

			var options = new Grl.OperationOptions (caps);

			options.set_count (100);

			options.set_flags (Grl.MetadataResolutionFlags.FULL | Grl.MetadataResolutionFlags.IDLE_RELAY);

			source.search (q, keys, options, search_cb);

		}

	}

	public void run () {

		main_loop.run ();

	}

	public static int main (string[] args) {

		Grl.init(ref args);

		var playlist = new SimplePlaylist ();

        if (args[1] != null) {

            playlist.search (args[1]);

            playlist.run ();

        } else {

            print ("Query parameter missing\n");

        }

		return 0;

	}

}