/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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.
 *
 * Contributor(s): Chingiz Dyussenov, Arystanbek Dyussenov.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file DocumentImporter.h
 *  \ingroup collada
 */

#ifndef __DOCUMENTIMPORTER_H__
#define __DOCUMENTIMPORTER_H__

#include "COLLADAFWIWriter.h"
#include "COLLADAFWMaterial.h"
#include "COLLADAFWEffect.h"
#include "COLLADAFWColor.h"
#include "COLLADAFWImage.h"
#include "COLLADAFWInstanceGeometry.h"
#include "COLLADAFWController.h"
#include "COLLADAFWMorphController.h"
#include "COLLADAFWSkinController.h"
#include "COLLADAFWEffectCommon.h"


#include "BKE_object.h"
#include "BKE_constraint.h"

#include "TransformReader.h"
#include "AnimationImporter.h"
#include "ArmatureImporter.h"
#include "ControllerExporter.h"
#include "MeshImporter.h"
#include "ImportSettings.h"



struct Main;
struct bContext;

/** Importer class. */
class DocumentImporter : COLLADAFW::IWriter
{
public:
	//! Enumeration to denote the stage of import
	enum ImportStage {
		General,		//!< First pass to collect all data except controller
		Controller,		//!< Second pass to collect controller data
	};
	/** Constructor */
	DocumentImporter(bContext *C, const ImportSettings *import_settings);

	/** Destructor */
	~DocumentImporter();

	/** Function called by blender UI */
	bool import();

	/** these should not be here */
	Object* create_camera_object(COLLADAFW::InstanceCamera*, Scene*);
	Object* create_lamp_object(COLLADAFW::InstanceLight*, Scene*);
	Object* create_instance_node(Object*, COLLADAFW::Node*, COLLADAFW::Node*, Scene*, bool);
	void create_constraints(ExtraTags *et, Object *ob);
	std::vector<Object *> *write_node(COLLADAFW::Node*, COLLADAFW::Node*, Scene*, Object*, bool);
	MTex* create_texture(COLLADAFW::EffectCommon*, COLLADAFW::Texture&, Material*, int, TexIndexTextureArrayMap&);
	void write_profile_COMMON(COLLADAFW::EffectCommon*, Material*);
	
	void translate_anim_recursive(COLLADAFW::Node*, COLLADAFW::Node*, Object*);

	/**
	 * This method will be called if an error in the loading process occurred and the loader cannot
	 * continue to load. The writer should undo all operations that have been performed.
	 * \param errorMessage A message containing informations about the error that occurred.
	 */
	void cancel(const COLLADAFW::String& errorMessage);

	/** This is the method called. The writer hast to prepare to receive data.*/
	void start();

	/** This method is called after the last write* method. No other methods will be called after this.*/
	void finish();

	bool writeGlobalAsset(const COLLADAFW::FileInfo*);
	std::string get_import_version(const COLLADAFW::FileInfo *asset);

	bool writeScene(const COLLADAFW::Scene*);

	bool writeVisualScene(const COLLADAFW::VisualScene*);

	bool writeLibraryNodes(const COLLADAFW::LibraryNodes*);

	bool writeAnimation(const COLLADAFW::Animation*);

	bool writeAnimationList(const COLLADAFW::AnimationList*);

	bool writeGeometry(const COLLADAFW::Geometry*);

	bool writeMaterial(const COLLADAFW::Material*);

	bool writeEffect(const COLLADAFW::Effect*);

	bool writeCamera(const COLLADAFW::Camera*);

	bool writeImage(const COLLADAFW::Image*);

	bool writeLight(const COLLADAFW::Light*);

	bool writeSkinControllerData(const COLLADAFW::SkinControllerData*);

	bool writeController(const COLLADAFW::Controller*);

	bool writeFormulas(const COLLADAFW::Formulas*);

	bool writeKinematicsScene(const COLLADAFW::KinematicsScene*);

	/** Add element and data for UniqueId */
	bool addExtraTags(const COLLADAFW::UniqueId &uid, ExtraTags *extra_tags);
	/** Get an extisting ExtraTags for uid */
	ExtraTags* getExtraTags(const COLLADAFW::UniqueId &uid);

	bool is_armature(COLLADAFW::Node * node);



private:
	const ImportSettings *import_settings;

	/** Current import stage we're in. */
	ImportStage mImportStage;

	bContext *mContext;

	UnitConverter unit_converter;
	ArmatureImporter armature_importer;
	MeshImporter mesh_importer;
	AnimationImporter anim_importer;
	
	/** TagsMap typedef for uid_tags_map. */
	typedef std::map<std::string, ExtraTags*> TagsMap;
	/** Tags map of unique id as a string and ExtraTags instance. */
	TagsMap uid_tags_map;

	std::map<COLLADAFW::UniqueId, Image*> uid_image_map;
	std::map<COLLADAFW::UniqueId, Material*> uid_material_map;
	std::map<COLLADAFW::UniqueId, Material*> uid_effect_map;
	std::map<COLLADAFW::UniqueId, Camera*> uid_camera_map;
	std::map<COLLADAFW::UniqueId, Lamp*> uid_lamp_map;
	std::map<Material*, TexIndexTextureArrayMap> material_texture_mapping_map;
	std::multimap<COLLADAFW::UniqueId, Object*> object_map;
	std::map<COLLADAFW::UniqueId, COLLADAFW::Node*> node_map;
	std::vector<const COLLADAFW::VisualScene*> vscenes;
	std::vector<Object*> libnode_ob;
	
	std::map<COLLADAFW::UniqueId, COLLADAFW::Node*> root_map; // find root joint by child joint uid, for bone tree evaluation during resampling
	std::map<COLLADAFW::UniqueId, const COLLADAFW::Object*> FW_object_map;

	std::string import_from_version;

	void report_unknown_reference(const COLLADAFW::Node &node, const std::string object_type);
};

#endif