#pragma once

#include "tl/detail/prologue.h"

///////////////////////////////////////////////////////////////////////////////
//

namespace tl
{
namespace crash
{
	//use this to specify a function to be called when a crash is requested.
	//Note!!! File and msg can be NULL
	//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
	//
	//   It's very risky to implement this function so do it only if you REALLY REALLY have to do something before the crash.
	//   This might be called because the system is out of memory - so any allocation will fail. Same for file handles or any other resources.
	//
	//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

	enum class response
	{
		CRASH,
		CONTINUE
	};

	using handler = response (*)(const char *, int, const char *);
	TL_API handler set_handler(handler) noexcept;

	TL_API response default_handler(const char* file, int line, const char* msg) noexcept;

	//Use this to temporarily change the assert handler for the current scope
	class handler_guard
	{
	public:
		explicit handler_guard(handler new_handler) noexcept
		{
			m_prev_handler = set_handler(new_handler);
		}
		~handler_guard() noexcept
		{
			set_handler(m_prev_handler);
		}

	private:
		handler m_prev_handler;
	};

 ///////////////////////////////////////////////////////////////////////
 //for internal use only
namespace detail
{
TL_API handler& get_static_handler() noexcept;
//this is responsible of formatting the messages and calling the handler
inline response invoke_crash_handler(const char* file, int line, const char* msg) noexcept
{
	const handler& handler = get_static_handler();
	return handler(file, line, msg);
}
}
}
}

#include "tl/detail/internal_assert.h"