/*
 * This source code is released into the public domain.
 */

module;

#include <cassert>
#include <cstdlib>
#include <string>

#include <ucl.h>

export module nihil.ucl:string;

import :object;

namespace nihil::ucl {

export struct string final : object {
	using value_type = std::string_view;

	inline static constexpr object_type ucl_type = object_type::string;

	string(value_type value)
		: object(::ucl_object_fromstring_common(
				value.data(), value.size(), UCL_STRING_RAW))
	{
		if (_object == nullptr)
			throw error("failed to create UCL object");
	}

	explicit string(::ucl_object_t *uobj) : object(uobj)
	{
		assert(type() == object_type::string);
	}

	auto value(this string const &self) -> value_type
	{
		char const *dptr{};
		std::size_t dlen;

		auto const *uobj = self.get_ucl_object();
		if (::ucl_object_tolstring_safe(uobj, &dptr, &dlen))
			return {dptr, dlen};

		std::abort();
	}
};

/*
 * Comparison operators.
 */

export auto operator== (string const &a, string const &b)
	-> bool
{
	return a.value() == b.value();
}

export auto operator<=> (string const &a, string const &b)
	-> std::strong_ordering
{
	return a.value() <=> b.value();
}

export auto operator== (string const &a, string::value_type b)
	-> bool
{
	return a.value() == b;
}

export auto operator<=> (string const &a, string::value_type b)
	-> std::strong_ordering
{
	return a.value() <=> b;
}

} // namespace nihil::ucl