/*
 Copyright (c) 2013 yvt

 This file is part of OpenSpades.

 OpenSpades 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 3 of the License, or
 (at your option) any later version.

 OpenSpades 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 OpenSpades.  If not, see <http://www.gnu.org/licenses/>.

 */
#include <memory>

#include "GLModelManager.h"
#include <Core/Debug.h>
#include <Core/FileManager.h>
#include <Core/IStream.h>
#include <Core/Settings.h>
#include <Core/VoxelModel.h>
#include "GLRenderer.h"
#include "GLVoxelModel.h"

namespace spades {
	namespace draw {
		GLModelManager::GLModelManager(GLRenderer *r) {
			SPADES_MARK_FUNCTION();

			renderer = r;
		}
		GLModelManager::~GLModelManager() {
			SPADES_MARK_FUNCTION();

			for (std::map<std::string, GLModel *>::iterator it = models.begin(); it != models.end();
			     it++) {
				it->second->Release();
			}
		}

		GLModel *GLModelManager::RegisterModel(const char *name) {
			SPADES_MARK_FUNCTION();

			std::map<std::string, GLModel *>::iterator it;
			it = models.find(std::string(name));
			if (it == models.end()) {
				GLModel *m = CreateModel(name);
				models[name] = m;
				m->AddRef();
				return m;
			}
			it->second->AddRef(); // model manager owns this reference
			return it->second;
		}

		GLModel *GLModelManager::CreateModel(const char *name) {
			SPADES_MARK_FUNCTION();

			std::unique_ptr<IStream> stream{FileManager::OpenForReading(name)};
			Handle<VoxelModel> voxelModel{VoxelModel::LoadKV6(stream.get()), false};

			return static_cast<GLModel *>(renderer->CreateModelOptimized(voxelModel));
		}
	}
}