/*
  This file is part of Ingen.
  Copyright 2007-2012 David Robillard <http://drobilla.net/>

  Ingen is free software: you can redistribute it and/or modify it under the
  terms of the GNU Affero General Public License as published by the Free
  Software Foundation, either version 3 of the License, or any later version.

  Ingen 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 Affero General Public License for details.

  You should have received a copy of the GNU Affero General Public License
  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <sstream>
#include "raul/log.hpp"
#include "raul/PathTable.hpp"
#include "raul/TableImpl.hpp"
#include "ingen/Node.hpp"
#include "ingen/Port.hpp"
#include "ingen/shared/Store.hpp"

using namespace std;
using namespace Raul;

namespace Ingen {
namespace Shared {

void
Store::add(GraphObject* o)
{
	if (find(o->path()) != end()) {
		error << "[Store] Attempt to add duplicate object " << o->path() << endl;
		return;
	}

	insert(make_pair(o->path(), o));

	Node* node = dynamic_cast<Node*>(o);
	if (node) {
		for (uint32_t i=0; i < node->num_ports(); ++i) {
			add(node->port(i));
		}
	}
}

Store::const_iterator
Store::children_begin(SharedPtr<const GraphObject> o) const
{
	const_iterator parent = find(o->path());
	assert(parent != end());
	++parent;
	return parent;
}

Store::const_iterator
Store::children_end(SharedPtr<const GraphObject> o) const
{
	const_iterator parent = find(o->path());
	assert(parent != end());
	return find_descendants_end(parent);
}

SharedPtr<GraphObject>
Store::find_child(SharedPtr<const GraphObject> parent,
                  const string&                child_name) const
{
	const_iterator pi = find(parent->path());
	assert(pi != end());
	const_iterator children_end = find_descendants_end(pi);
	const_iterator child = find(pi, children_end, parent->path().base() + child_name);
	if (child != end())
		return child->second;
	else
		return SharedPtr<GraphObject>();
}

unsigned
Store::child_name_offset(const Raul::Path&   parent,
                         const Raul::Symbol& symbol,
                         bool                allow_zero)
{
	unsigned offset = 0;

	while (true) {
		std::stringstream ss;
		ss << symbol;
		if (offset > 0)
			ss << "_" << offset;
		if (find(parent.base() + ss.str()) == end() && (allow_zero || offset > 0))
			break;
		else if (offset == 0)
			offset = 2;
		else
			++offset;
	}

	return offset;
}

} // namespace Shared
} // namespace Ingen