/*************************************************************************/
/*  gd_mono_marshal.h                                                    */
/*************************************************************************/
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#ifndef GD_MONO_MARSHAL_H
#define GD_MONO_MARSHAL_H

#include "core/variant/variant.h"

#include "gd_mono.h"
#include "gd_mono_utils.h"

namespace GDMonoMarshal {

template <typename T>
T unbox(MonoObject *p_obj) {
	return *(T *)mono_object_unbox(p_obj);
}

Variant::Type managed_to_variant_type(const ManagedType &p_type, bool *r_nil_is_variant = nullptr);

bool try_get_array_element_type(const ManagedType &p_array_type, ManagedType &r_elem_type);

// String

_FORCE_INLINE_ String mono_string_to_godot_not_null(MonoString *p_mono_string) {
	char32_t *utf32 = (char32_t *)mono_string_to_utf32(p_mono_string);
	String ret = String(utf32);
	mono_free(utf32);
	return ret;
}

_FORCE_INLINE_ String mono_string_to_godot(MonoString *p_mono_string) {
	if (p_mono_string == nullptr) {
		return String();
	}

	return mono_string_to_godot_not_null(p_mono_string);
}

_FORCE_INLINE_ MonoString *mono_string_from_godot(const String &p_string) {
	return mono_string_from_utf32((mono_unichar4 *)(p_string.get_data()));
}

// Variant

MonoObject *variant_to_mono_object_of_type(const Variant &p_var, const ManagedType &p_type);

MonoObject *variant_to_mono_object(const Variant &p_var);

// These overloads were added to avoid passing a `const Variant *` to the `const Variant &`
// parameter. That would result in the `Variant(bool)` copy constructor being called as
// pointers are implicitly converted to bool. Implicit conversions are f-ing evil.

_FORCE_INLINE_ MonoObject *variant_to_mono_object_of_type(const Variant *p_var, const ManagedType &p_type) {
	return variant_to_mono_object_of_type(*p_var, p_type);
}
_FORCE_INLINE_ MonoObject *variant_to_mono_object(const Variant *p_var) {
	return variant_to_mono_object(*p_var);
}

Variant mono_object_to_variant(MonoObject *p_obj);
Variant mono_object_to_variant_no_err(MonoObject *p_obj);

// PackedStringArray

MonoArray *PackedStringArray_to_mono_array(const PackedStringArray &p_array);

} // namespace GDMonoMarshal

#endif // GD_MONO_MARSHAL_H