#ifndef BOARD_H
#define BOARD_H

#include <stdbool.h>

// board spec from WDF rules
#define DIAMETER 451.0
#define WIRE_WIDTH 1.56
#define INNER_DIAMETER_BULL 12.7
#define INNER_DIAMETER_25 31.8
#define DOUBLE_OUTER_EDGE 170.0
#define TREBLE_OUTER_EDGE 107.4
#define DOUBLE_INSIDE_WIDTH 8.0
#define TREBLE_INSIDE_WIDTH 8.0

#define NUM_SECTORS 20
#define SECTOR_WIDTH (360.0 / NUM_SECTORS)
#define FOREACH_SECTOR(M) \
	M(1) M(2) M(3) M(4) M(5) M(6) M(7) M(8) M(9) M(10) \
	M(11) M(12) M(13) M(14) M(15) M(16) M(17) M(18) M(19) M(20)
#define GEN_SECTOR_STR(X) #X,
#define GEN_SECTOR_STR_D(X) "D" #X,
#define GEN_SECTOR_STR_T(X) "T" #X,

// distance from centre to apex of outer wire
// must be ordered outwards from centre
#define FOREACH_RING(M) \
	M(BULL, INNER_DIAMETER_BULL/2 + WIRE_WIDTH/2) \
	M(25, INNER_DIAMETER_25/2 + WIRE_WIDTH/2) \
	M(SMALL, TREBLE_OUTER_EDGE - WIRE_WIDTH - TREBLE_INSIDE_WIDTH - \
		WIRE_WIDTH/2) \
	M(TREBLE, TREBLE_OUTER_EDGE - WIRE_WIDTH/2) \
	M(BIG, DOUBLE_OUTER_EDGE - WIRE_WIDTH - DOUBLE_INSIDE_WIDTH - \
		WIRE_WIDTH/2) \
	M(DOUBLE, DOUBLE_OUTER_EDGE - WIRE_WIDTH/2)
#define GEN_RING_ENUM(X, D) R_ ## X,
#define GEN_RING_STR(X, D) #X,
#define GEN_RING_OUTER_DIST(X, D) D,

extern int SECTORS[];
extern double OUTER_DISTS[];

enum ring {
	FOREACH_RING(GEN_RING_ENUM)
	R_OUT
};

struct segment {
	enum ring ring;
	int sector;
};

struct ccoords {
	double x, y;
};

struct pcoords {
	double a, r;
};

void init_board();

struct segment segment_from_pcoords(struct pcoords c);
struct segment segment_from_name(const char *name);
struct pcoords segment_centre(struct segment seg);
const char *segment_name(struct segment seg);
int segment_points(struct segment seg);
bool segment_is_double(struct segment seg);

#endif