/*************************************************************************/
/* spdlog - an extremely fast and easy to use c++11 logging library.     */
/* Copyright (c) 2014 Gabi Melman.                                       */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#pragma once

#include "../common.h"
#include "../logger.h"


// Line logger class - aggregates operator<< calls to fast ostream
// and logs upon destruction

namespace spdlog
{
namespace details
{
class line_logger
{
public:
	line_logger(logger* callback_logger, level::level_enum msg_level, bool enabled):
		_callback_logger(callback_logger),
		_log_msg(msg_level),
		_enabled(enabled)
	{}

	// No copy intended. Only move
	line_logger(const line_logger& other) = delete;
	line_logger& operator=(const line_logger&) = delete;
	line_logger& operator=(line_logger&&) = delete;


	line_logger(line_logger&& other) :
		_callback_logger(other._callback_logger),
		_log_msg(std::move(other._log_msg)),
		_enabled(other._enabled)
	{
		other.disable();
	}

	//Log the log message using the callback logger
	~line_logger()
	{
		if (_enabled)
		{
			_log_msg.logger_name = _callback_logger->name();
			_log_msg.time = log_clock::now();
			_callback_logger->_log_msg(_log_msg);
		}
	}


	template <typename... Args>
	void write(const char* fmt, const Args&... args)
	{
		if (!_enabled)
			return;
		try
		{
			_log_msg.raw.write(fmt, args...);
		}
		catch (const fmt::FormatError& e)
		{
			throw spdlog_ex(fmt::format("formatting error while processing format string '{}': {}", fmt, e.what()));
		}
	}

	template<typename T>
	line_logger& operator<<(const T& what)
	{
		if (_enabled)
			_log_msg.raw << what;
		return *this;
	}


	void disable()
	{
		_enabled = false;
	}



private:
	logger* _callback_logger;
	log_msg _log_msg;
	bool _enabled;
};
} //Namespace details
} // Namespace spdlog