#ifndef _libslic3r_h_
#define _libslic3r_h_

// this needs to be included early for MSVC (listing it in Build.PL is not enough)
#include <ostream>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <stdint.h>
#include <stdarg.h>

#define SLIC3R_FORK_NAME "Slic3r Prusa Edition"
#define SLIC3R_VERSION "1.31.6"

//FIXME This epsilon value is used for many non-related purposes:
// For a threshold of a squared Euclidean distance,
// for a trheshold in a difference of radians,
// for a threshold of a cross product of two non-normalized vectors etc.
#define EPSILON 1e-4
// Scaling factor for a conversion from coord_t to coordf_t: 10e-6
// This scaling generates a following fixed point representation with for a 32bit integer:
// 0..4294mm with 1nm resolution
// int32_t fits an interval of (-2147.48mm, +2147.48mm)
#define SCALING_FACTOR 0.000001
// RESOLUTION, SCALED_RESOLUTION: Used as an error threshold for a Douglas-Peucker polyline simplification algorithm.
#define RESOLUTION 0.0125
#define SCALED_RESOLUTION (RESOLUTION / SCALING_FACTOR)
#define PI 3.141592653589793238
// When extruding a closed loop, the loop is interrupted and shortened a bit to reduce the seam.
#define LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER 0.15
// Maximum perimeter length for the loop to apply the small perimeter speed. 
#define SMALL_PERIMETER_LENGTH (6.5 / SCALING_FACTOR) * 2 * PI
#define INSET_OVERLAP_TOLERANCE 0.4
// 3mm ring around the top / bottom / bridging areas.
//FIXME This is quite a lot.
#define EXTERNAL_INFILL_MARGIN 3.
#define scale_(val) ((val) / SCALING_FACTOR)
#define unscale(val) ((val) * SCALING_FACTOR)
#define SCALED_EPSILON scale_(EPSILON)
typedef long coord_t;
typedef double coordf_t;

namespace Slic3r {

enum Axis { X=0, Y, Z };

}
using namespace Slic3r;

/* Implementation of CONFESS("foo"): */
#ifdef _MSC_VER
	#define CONFESS(...) confess_at(__FILE__, __LINE__, __FUNCTION__, __VA_ARGS__)
#else
	#define CONFESS(...) confess_at(__FILE__, __LINE__, __func__, __VA_ARGS__)
#endif
void confess_at(const char *file, int line, const char *func, const char *pat, ...);
/* End implementation of CONFESS("foo"): */

// Which C++ version is supported?
// For example, could optimized functions with move semantics be used?
#if __cplusplus==201402L
	#define SLIC3R_CPPVER 14
	#define STDMOVE(WHAT) std::move(WHAT)
#elif __cplusplus==201103L
	#define SLIC3R_CPPVER 11
	#define STDMOVE(WHAT) std::move(WHAT)
#else
	#define SLIC3R_CPPVER 0
	#define STDMOVE(WHAT) (WHAT)
#endif

#define SLIC3R_DEBUG_OUT_PATH_PREFIX "out/"

inline std::string debug_out_path(const char *name, ...)
{
	char buffer[2048];
	va_list args;
	va_start(args, name);
	std::vsprintf(buffer, name, args);
	va_end(args);
	return std::string(SLIC3R_DEBUG_OUT_PATH_PREFIX) + std::string(buffer);
}

#ifdef _MSC_VER
	// Visual Studio older than 2015 does not support the prinf type specifier %zu. Use %Iu instead.
	#define PRINTF_ZU "%Iu"
#else
	#define PRINTF_ZU "%zu"
#endif

// Write slices as SVG images into out directory during the 2D processing of the slices.
// #define SLIC3R_DEBUG_SLICE_PROCESSING

#endif