/**
	This file is a part of rexy's matrix client
	Copyright (C) 2019 rexy712

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Affero General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU Affero General Public License for more details.

	You should have received a copy of the GNU Affero General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef RAII_BINARY_STRING_CONV_HPP
#define RAII_BINARY_STRING_CONV_HPP

#include "raii/string.hpp"
#include "raii/binary.hpp"

namespace raii{
	template<class Al, class Str = raii::string, typename std::enable_if<raii::detail::is_concrete_string<Str>::value,void>::type* = nullptr>
	auto binary_to_string(const binary_data<Al>& b){
		Str s(b.size()+1);
		memcpy(s.get(), b.get(), b.size());
		s[b.size()] = 0;
		return s;
	}
	template<class Al, class Str = raii::string, typename std::enable_if<raii::detail::is_concrete_string<Str>::value && std::is_same<typename std::decay<Al>::type,typename Str::allocator_type>::value,void>::type* = nullptr>
	auto binary_to_string(binary_data<Al>&& b){
		Str s;
		s.reset(b.get(), b.size());
		b.release();
		return s;
	}
	template<class Bin = raii::binary, typename std::enable_if<raii::detail::is_binary_type<Bin>::value,void>::type* = nullptr>
	auto string_to_binary(const string_base& s){
		Bin b(s.length()+1);
		b.append(s.get(), s.length()+1);
		return b;
	}
	template<class Al, class Bin = raii::binary, typename std::enable_if<raii::detail::is_binary_type<Bin>::value && std::is_same<typename std::decay<Al>::type,typename Bin::allocator_type>::value,void>::type* = nullptr>
	auto string_to_binary(string_intermediary<Al>&& s){
		Bin b;
		b.reset(s.get(), s.length()+1);
		s.release();
		return b;
	}
}
template<class L, class R, typename std::enable_if<raii::detail::is_binary_type<L>::value && raii::detail::is_concrete_string<R>::value,void>::type* = nullptr>
decltype(auto) operator+=(L& l, R&& r){
	l.append(r.get(), r.length()+1);
	return l;
}
template<class L, class R, typename std::enable_if<raii::detail::is_binary_type<L>::value && raii::detail::is_string<R>::value && !raii::detail::is_concrete_string<R>::value,void>::type* = nullptr>
decltype(auto) operator+=(L& l, R&& r){
	raii::string concrete = r;
	return (l = concrete);
}
template<class L, class R, typename std::enable_if<raii::detail::is_concrete_string<L>::value && raii::detail::is_binary_type<R>::value,void>::type* = nullptr>
decltype(auto) operator+=(L& l, R&& r){
	l.resize(l.length(), r.size() + 1);
	memcpy(l.get()+l.length()+1, r.get(), r.size());
	return l;
}

#endif