/*
 * Copyright (C) 2008-2009 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2008-2012 Sakari Bergen <sakari.bergen@beatwaves.net>
 * Copyright (C) 2009-2012 David Robillard <d@drobilla.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "ardour/export_channel_configuration.h"

#include "pbd/convert.h"
#include "pbd/enumwriter.h"
#include "pbd/pthread_utils.h"

using namespace PBD;

namespace ARDOUR
{

/* ExportChannelConfiguration */

ExportChannelConfiguration::ExportChannelConfiguration (Session & session)
  : session (session)
  , split (false)
  , region_type (RegionExportChannelFactory::None)
{

}

XMLNode &
ExportChannelConfiguration::get_state ()
{
	XMLNode * root = new XMLNode ("ExportChannelConfiguration");
	XMLNode * channel;

	root->set_property ("split", get_split());
	root->set_property ("channels", get_n_chans());

	switch (region_type) {
	case RegionExportChannelFactory::None:
		// Do nothing
		break;
	default:
		root->set_property ("region-processing", enum_2_string (region_type));
		break;
	}

	uint32_t i = 1;
	for (ExportChannelConfiguration::ChannelList::const_iterator c_it = channels.begin(); c_it != channels.end(); ++c_it) {
		channel = root->add_child ("Channel");
		if (!channel) { continue; }

		channel->set_property ("number", i);
		(*c_it)->get_state (channel);

		++i;
	}

	return *root;
}

int
ExportChannelConfiguration::set_state (const XMLNode & root)
{
	bool yn;
	if (root.get_property ("split", yn)) {
		set_split (yn);
	}

	std::string str;
	if (root.get_property ("region-processing", str)) {
		set_region_processing_type ((RegionExportChannelFactory::Type)
			string_2_enum (str, RegionExportChannelFactory::Type));
	}

	XMLNodeList channels = root.children ("Channel");
	for (XMLNodeList::iterator it = channels.begin(); it != channels.end(); ++it) {
		ExportChannelPtr channel (new PortExportChannel ());
		channel->set_state (*it, session);
		register_channel (channel);
	}

	return 0;
}

bool
ExportChannelConfiguration::all_channels_have_ports () const
{
	for (ChannelList::const_iterator it = channels.begin(); it != channels.end(); ++it) {
		if ((*it)->empty ()) { return false; }
	}

	return true;
}

void
ExportChannelConfiguration::configurations_for_files (std::list<boost::shared_ptr<ExportChannelConfiguration> > & configs)
{
	configs.clear ();

	if (!split) {
		configs.push_back (shared_from_this ());
		return;
	}

	for (ChannelList::const_iterator it = channels.begin (); it != channels.end (); ++it) {
		boost::shared_ptr<ExportChannelConfiguration> config (new ExportChannelConfiguration (session));
		config->set_name (_name);
		config->register_channel (*it);
		configs.push_back (config);
	}
}

} // namespace ARDOUR