status-utils.hpp
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status-utils.hpp
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	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2020 Tusooa Zhu <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#pragma once

	#include <context.hpp>

	namespace Kazv
	{
	namespace detail
	{
	struct SimpleFailT
	{
	template<class Context>
	EffectStatus operator()(Context &&) const {
	return EffectStatus(/* succ = */ false);
	};
	};
	}

	/**
	* A effect that returns a failed EffectStatus upon invocation.
	*/
	constexpr auto simpleFail = detail::SimpleFailT{};

	/**
	* A effect that returns a failed EffectStatus upon invocation.
	*/
	template<class Resp>
	constexpr auto failWithResponse(Resp &&r)
	{
	auto code = r.errorCode();
	auto msg = std::forward<Resp>(r).errorMessage();
	auto d = json{
	{"error", msg},
	{"errorCode", code},
	};
	return [data=JsonWrap(d)](auto &&) {
	return EffectStatus(/* succ = */ false, data);
	};
	}
	}