/**************************************************************************/
/*  script_instance_extension.hpp                                         */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#ifndef GODOT_SCRIPT_INSTANCE_EXTENSION_HPP
#define GODOT_SCRIPT_INSTANCE_EXTENSION_HPP

#include <godot_cpp/classes/ref.hpp>
#include <godot_cpp/templates/pair.hpp>
#include <godot_cpp/variant/string_name.hpp>

namespace godot {

class Script;
class ScriptLanguage;

class ScriptInstanceExtension {
	static GDExtensionScriptInstanceInfo3 script_instance_info;

	// Used to keep the refcounted properties alive after passing pointers to the data back to Godot.
	static thread_local List<PropertyInfo> property_list;
	static thread_local List<MethodInfo> method_list;

	static GDExtensionBool gdextension_script_instance_set(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionConstVariantPtr p_value);
	static GDExtensionBool gdextension_script_instance_get(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret);
	static const GDExtensionPropertyInfo *gdextension_script_instance_get_property_list(GDExtensionScriptInstanceDataPtr p_instance, uint32_t *r_count);
	static void gdextension_script_instance_free_property_list(GDExtensionScriptInstanceDataPtr p_instance, const GDExtensionPropertyInfo *p_list, uint32_t p_count);
	static GDExtensionVariantType gdextension_script_instance_get_property_type(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionBool *r_is_valid);
	static GDExtensionBool gdextension_script_instance_validate_property(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionPropertyInfo *p_property);
	static GDExtensionBool gdextension_script_instance_property_can_revert(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name);
	static GDExtensionBool gdextension_script_instance_property_get_revert(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret);
	static GDExtensionObjectPtr gdextension_script_instance_get_owner(GDExtensionScriptInstanceDataPtr p_instance);
	static void gdextension_script_instance_get_property_state(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionScriptInstancePropertyStateAdd p_add_func, void *p_userdata);
	static const GDExtensionMethodInfo *gdextension_script_instance_get_method_list(GDExtensionScriptInstanceDataPtr p_instance, uint32_t *r_count);
	static void gdextension_script_instance_free_method_list(GDExtensionScriptInstanceDataPtr p_instance, const GDExtensionMethodInfo *p_list, uint32_t p_count);
	static GDExtensionBool gdextension_script_instance_has_method(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name);
	static GDExtensionInt gdextension_script_instance_get_method_argument_count(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionBool *r_is_valid);
	static void gdextension_script_instance_call(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_method, const GDExtensionConstVariantPtr *p_args, GDExtensionInt p_argument_count, GDExtensionVariantPtr r_return, GDExtensionCallError *r_error);
	static void gdextension_script_instance_notification(GDExtensionScriptInstanceDataPtr p_instance, int32_t p_what, GDExtensionBool p_reversed);
	static void gdextension_script_instance_to_string(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionBool *r_is_valid, GDExtensionStringPtr r_out);
	static void gdextension_script_instance_refcount_incremented(GDExtensionScriptInstanceDataPtr p_instance);
	static GDExtensionBool gdextension_script_instance_refcount_decremented(GDExtensionScriptInstanceDataPtr p_instance);
	static GDExtensionObjectPtr gdextension_script_instance_get_script(GDExtensionScriptInstanceDataPtr p_instance);
	static GDExtensionBool gdextension_script_instance_is_placeholder(GDExtensionScriptInstanceDataPtr p_instance);
	static GDExtensionBool gdextension_script_instance_set_fallback(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionConstVariantPtr p_value);
	static GDExtensionBool gdextension_script_instance_get_fallback(GDExtensionScriptInstanceDataPtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret);
	static GDExtensionScriptLanguagePtr gdextension_script_instance_get_language(GDExtensionScriptInstanceDataPtr p_instance);
	static void gdextension_script_instance_free(GDExtensionScriptInstanceDataPtr p_instance);

public:
	static GDExtensionScriptInstancePtr create_native_instance(ScriptInstanceExtension *p_instance) {
		return internal::gdextension_interface_script_instance_create3(&script_instance_info, p_instance);
	}

	virtual bool set(const StringName &p_name, const Variant &p_value) = 0;
	virtual bool get(const StringName &p_name, Variant &r_ret) const = 0;
	virtual void get_property_list(List<PropertyInfo> *p_properties) const = 0;
	virtual Variant::Type get_property_type(const StringName &p_name, bool *r_is_valid) const = 0;
	virtual void validate_property(PropertyInfo &p_property) const = 0;
	virtual bool property_can_revert(const StringName &p_name) const = 0;
	virtual bool property_get_revert(const StringName &p_name, Variant &r_ret) const = 0;
	virtual Object *get_owner() = 0;
	virtual void get_property_state(List<Pair<StringName, Variant>> &state);
	virtual void get_method_list(List<MethodInfo> *p_info) const = 0;
	virtual bool has_method(const StringName &p_method) const = 0;
	virtual int get_method_argument_count(const StringName &p_method, bool *r_is_valid = nullptr) const = 0;
	virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) = 0;
	virtual void notification(int p_notification, bool p_reversed) = 0;
	virtual String to_string(bool *r_valid) = 0;
	virtual void refcount_incremented() = 0;
	virtual bool refcount_decremented() = 0;
	virtual Ref<Script> get_script() const = 0;
	virtual bool is_placeholder() const = 0;
	virtual void property_set_fallback(const StringName &p_name, const Variant &p_value, bool *r_valid) = 0;
	virtual Variant property_get_fallback(const StringName &p_name, bool *r_valid) = 0;
	virtual ScriptLanguage *get_language() = 0;

	virtual ~ScriptInstanceExtension(){};
};

}; // namespace godot

#endif // GODOT_SCRIPT_INSTANCE_EXTENSION_HPP