/*************************************************************************/
/*  scene_format_text.h                                                  */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
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/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
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/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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/*************************************************************************/

#ifndef SCENE_FORMAT_TEXT_H
#define SCENE_FORMAT_TEXT_H

#include "io/resource_loader.h"
#include "io/resource_saver.h"
#include "os/file_access.h"
#include "scene/resources/packed_scene.h"
#include "variant_parser.h"

class ResourceInteractiveLoaderText : public ResourceInteractiveLoader {

	bool translation_remapped;
	String local_path;
	String res_path;
	String error_text;

	FileAccess *f;

	VariantParser::StreamFile stream;

	struct ExtResource {
		String path;
		String type;
	};

	bool is_scene;
	String res_type;

	bool ignore_resource_parsing;

	//Map<String,String> remaps;

	Map<int, ExtResource> ext_resources;

	int resources_total;
	int resource_current;
	String resource_type;

	VariantParser::Tag next_tag;

	mutable int lines;

	Map<String, String> remaps;
	//void _printerr();

	static Error _parse_sub_resources(void *p_self, VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str) { return reinterpret_cast<ResourceInteractiveLoaderText *>(p_self)->_parse_sub_resource(p_stream, r_res, line, r_err_str); }
	static Error _parse_ext_resources(void *p_self, VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str) { return reinterpret_cast<ResourceInteractiveLoaderText *>(p_self)->_parse_ext_resource(p_stream, r_res, line, r_err_str); }

	Error _parse_sub_resource(VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str);
	Error _parse_ext_resource(VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str);

	// for converter
	class DummyResource : public Resource {
	public:
	};

	struct DummyReadData {

		Map<RES, int> external_resources;
		Map<int, RES> rev_external_resources;
		Set<RES> resource_set;
		Map<int, RES> resource_map;
	};

	static Error _parse_sub_resource_dummys(void *p_self, VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str) { return _parse_sub_resource_dummy((DummyReadData *)(p_self), p_stream, r_res, line, r_err_str); }
	static Error _parse_ext_resource_dummys(void *p_self, VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str) { return _parse_ext_resource_dummy((DummyReadData *)(p_self), p_stream, r_res, line, r_err_str); }

	static Error _parse_sub_resource_dummy(DummyReadData *p_data, VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str);
	static Error _parse_ext_resource_dummy(DummyReadData *p_data, VariantParser::Stream *p_stream, Ref<Resource> &r_res, int &line, String &r_err_str);

	VariantParser::ResourceParser rp;

	friend class ResourceFormatLoaderText;

	List<RES> resource_cache;
	Error error;

	RES resource;

	Ref<PackedScene> _parse_node_tag(VariantParser::ResourceParser &parser);

public:
	virtual void set_local_path(const String &p_local_path);
	virtual Ref<Resource> get_resource();
	virtual Error poll();
	virtual int get_stage() const;
	virtual int get_stage_count() const;
	virtual void set_translation_remapped(bool p_remapped);

	void open(FileAccess *p_f, bool p_skip_first_tag = false);
	String recognize(FileAccess *p_f);
	void get_dependencies(FileAccess *p_f, List<String> *p_dependencies, bool p_add_types);
	Error rename_dependencies(FileAccess *p_f, const String &p_path, const Map<String, String> &p_map);

	Error save_as_binary(FileAccess *p_f, const String &p_path);
	ResourceInteractiveLoaderText();
	~ResourceInteractiveLoaderText();
};

class ResourceFormatLoaderText : public ResourceFormatLoader {

public:
	static ResourceFormatLoaderText *singleton;
	virtual Ref<ResourceInteractiveLoader> load_interactive(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
	virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const;
	virtual void get_recognized_extensions(List<String> *p_extensions) const;
	virtual bool handles_type(const String &p_type) const;
	virtual String get_resource_type(const String &p_path) const;
	virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
	virtual Error rename_dependencies(const String &p_path, const Map<String, String> &p_map);

	static Error convert_file_to_binary(const String &p_src_path, const String &p_dst_path);

	ResourceFormatLoaderText() { singleton = this; }
};

class ResourceFormatSaverTextInstance {

	String local_path;

	Ref<PackedScene> packed_scene;

	bool takeover_paths;
	bool relative_paths;
	bool bundle_resources;
	bool skip_editor;
	FileAccess *f;
	Set<RES> resource_set;
	List<RES> saved_resources;
	Map<RES, int> external_resources;
	Map<RES, int> internal_resources;

	void _find_resources(const Variant &p_variant, bool p_main = false);

	static String _write_resources(void *ud, const RES &p_resource);
	String _write_resource(const RES &res);

public:
	Error save(const String &p_path, const RES &p_resource, uint32_t p_flags = 0);
};

class ResourceFormatSaverText : public ResourceFormatSaver {
public:
	static ResourceFormatSaverText *singleton;
	virtual Error save(const String &p_path, const RES &p_resource, uint32_t p_flags = 0);
	virtual bool recognize(const RES &p_resource) const;
	virtual void get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const;

	ResourceFormatSaverText();
};

#endif // SCENE_FORMAT_TEXT_H