#ifndef _LIBRW_DEBUG_HPP_
#define _LIBRW_DEBUG_HPP_

#ifdef RW_DEBUG
#include <cstdlib>
#include <functional>

extern std::function<void()> _rw_abort_cb[2];
#define SET_RW_ABORT_CB(cb0, cb1) do { _rw_abort_cb[0] = cb0; _rw_abort_cb[1] = cb1;} while (0)

#define RW_ABORT() do { if(_rw_abort_cb[0]) _rw_abort_cb[0](); ::abort(); } while (0)
#define RW_ASSERT(cond) do { if (!(cond)) RW_ABORT();} while (0)

#if defined(RW_WINDOWS)
void WinBreak();
#define RW_BREAKPOINT() WinBreak()
#else
#include <csignal>
#define RW_BREAKPOINT() do { if(_rw_abort_cb[0]) _rw_abort_cb[0](); ::raise(SIGTRAP); if(_rw_abort_cb[1]) _rw_abort_cb[1](); } while (0)
#endif

#define RW_FAILED_NO_ACTION         0
#define RW_FAILED_ABORT_OPTION      1
#define RW_FAILED_BREAKPOINT_OPTION 2

#if RW_FAILED_CHECK_ACTION == RW_FAILED_NO_ACTION
#define _RW_FAILED_CHECK_ACTION()
#elif RW_FAILED_CHECK_ACTION == RW_FAILED_ABORT_OPTION
#define _RW_FAILED_CHECK_ACTION() RW_ABORT()
#elif RW_FAILED_CHECK_ACTION == RW_FAILED_BREAKPOINT_OPTION
#define _RW_FAILED_CHECK_ACTION() RW_BREAKPOINT()
#endif

#else
#define SET_RW_ABORT_CB(cb0, cb1)
#define RW_ABORT()
#define RW_ASSERT(cond)
#define RW_BREAKPOINT()
#define _RW_FAILED_CHECK_ACTION()
#endif

#if defined(RW_DEBUG) && defined(RW_VERBOSE_DEBUG_MESSAGES)
#include <iostream>
#define RW_MESSAGE(msg) \
    std::cout << __FILE__ << ":" << __LINE__ << ": " << msg << '\n'
#define RW_ERROR(msg) \
    std::cerr << __FILE__ << ":" << __LINE__ << ": " << msg << '\n'
#else
#define RW_MESSAGE(msg)
#define RW_ERROR(msg)
#endif

#if RW_DEBUG
#define RW_CHECK(cond, msg) \
    do { if (!(cond)) { RW_ERROR(msg); _RW_FAILED_CHECK_ACTION();}} while (0)
#else
#define RW_CHECK(cond, msg)
#endif

#define RW_UNUSED(var) (void)var

#define RW_UNIMPLEMENTED(msg) RW_MESSAGE("Unimplemented: " << msg)

#endif