/*************************************************************************/
/*  multi_script.h                                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* 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 */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#ifndef MULTI_SCRIPT_H
#define MULTI_SCRIPT_H

#include "script_language.h"
#include "os/thread_safe.h"

class MultiScript;

class MultiScriptInstance : public ScriptInstance {
friend class MultiScript;
	mutable Vector<ScriptInstance*> instances;
	Object *object;
	mutable MultiScript *owner;

public:
	virtual bool set(const StringName& p_name, const Variant& p_value);
	virtual bool get(const StringName& p_name, Variant &r_ret) const;
	virtual void get_property_list(List<PropertyInfo> *p_properties) const;

	virtual void get_method_list(List<MethodInfo> *p_list) const;
	virtual bool has_method(const StringName& p_method) const;
	virtual Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error);
	virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
	virtual void notification(int p_notification);


	virtual Ref<Script> get_script() const;

	virtual ScriptLanguage *get_language();
	virtual ~MultiScriptInstance();
};


class MultiScript : public Script {

	_THREAD_SAFE_CLASS_
friend class MultiScriptInstance;
	OBJ_TYPE( MultiScript,Script);

	Vector<Ref<Script> > scripts;

	Map<Object*,MultiScriptInstance*> instances;
protected:

	bool _set(const StringName& p_name, const Variant& p_value);
	bool _get(const StringName& p_name,Variant &r_ret) const;
	void _get_property_list( List<PropertyInfo> *p_list) const;

	static void _bind_methods();

public:

	void remove_instance(Object *p_object);
	virtual bool can_instance() const;

	virtual StringName get_instance_base_type() const;
	virtual ScriptInstance* instance_create(Object *p_this);
	virtual bool instance_has(const Object *p_this) const;

	virtual bool has_source_code() const;
	virtual String get_source_code() const;
	virtual void set_source_code(const String& p_code);
	virtual Error reload();

	virtual bool is_tool() const;

	virtual String get_node_type() const;


	void set_script(int p_idx,const Ref<Script>& p_script );
	Ref<Script> get_script(int p_idx) const;
	void remove_script(int p_idx);
	void add_script(const Ref<Script>& p_script);

	virtual ScriptLanguage *get_language() const;

	MultiScript();
};


class MultiScriptLanguage : public ScriptLanguage {

	static MultiScriptLanguage *singleton;
public:

	static _FORCE_INLINE_ MultiScriptLanguage *get_singleton() { return singleton; }
	virtual String get_name() const { return "MultiScript"; }

	/* LANGUAGE FUNCTIONS */
	virtual void init() {}
	virtual String get_type() const { return "MultiScript"; }
	virtual String get_extension() const { return ""; }
	virtual Error execute_file(const String& p_path) { return OK; }
	virtual void finish() {}

	/* EDITOR FUNCTIONS */
	virtual void get_reserved_words(List<String> *p_words) const {}
	virtual void get_comment_delimiters(List<String> *p_delimiters) const {}
	virtual void get_string_delimiters(List<String> *p_delimiters) const {}
	virtual String get_template(const String& p_class_name, const String& p_base_class_name) const { return ""; }
	virtual bool validate(const String& p_script, int &r_line_error,int &r_col_error,String& r_test_error,const String& p_path="",List<String>* r_fn=NULL) const { return true; }
	virtual Script *create_script() const { return memnew( MultiScript ); }
	virtual bool has_named_classes() const { return false; }
	virtual int find_function(const String& p_function,const String& p_code) const { return -1; }
	virtual String make_function(const String& p_class,const String& p_name,const StringArray& p_args) const { return ""; }

	/* DEBUGGER FUNCTIONS */

	virtual String debug_get_error() const { return ""; }
	virtual int debug_get_stack_level_count() const { return 0; }
	virtual int debug_get_stack_level_line(int p_level) const { return 0; }
	virtual String debug_get_stack_level_function(int p_level) const { return ""; }
	virtual String debug_get_stack_level_source(int p_level) const { return ""; }
	virtual void debug_get_stack_level_locals(int p_level,List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1) {}
	virtual void debug_get_stack_level_members(int p_level,List<String> *p_members, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1) {}
	virtual void debug_get_globals(List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1) {}
	virtual String debug_parse_stack_level_expression(int p_level,const String& p_expression,int p_max_subitems=-1,int p_max_depth=-1) { return ""; }

	/* LOADER FUNCTIONS */

	virtual void get_recognized_extensions(List<String> *p_extensions) const {}
	virtual void get_public_functions(List<MethodInfo> *p_functions) const {}

	MultiScriptLanguage() { singleton=this; }
	virtual ~MultiScriptLanguage() {};
};


#endif // MULTI_SCRIPT_H