#include "vkvg.h"
#include "vkengine.h"
#include <stdio.h>
#include <stdlib.h>
#define _USE_MATH_DEFINES
#include <math.h>
#include <time.h>

#include "rnd.h"

#define M_PIF        3.14159265359f /* float pi */
#define M_PIF_MULT_2 6.28318530718f
#ifndef M_PI
#define M_PI 3.14159265358979323846 /* pi */
#endif
#ifndef M_PI_2
#define M_PI_2 1.57079632679489661923 /* pi/2 */
#endif

#ifndef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif

#ifndef MAX
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#endif

#define PERFORM_TEST(testName, argc, argv) perform_test(testName, #testName, argc, argv);

#if defined(_WIN32) || defined(_WIN64)
#define WIN32_LEAN_AND_MEAN
#define NOMINMAX
#include <Windows.h> // Windows.h -> WinDef.h defines min() max()

/*
    typedef uint16_t WORD ;
    typedef uint32_t DWORD;

    typedef struct _FILETIME {
        DWORD dwLowDateTime;
        DWORD dwHighDateTime;
    } FILETIME;

    typedef struct _SYSTEMTIME {
          WORD wYear;
          WORD wMonth;
          WORD wDayOfWeek;
          WORD wDay;
          WORD wHour;
          WORD wMinute;
          WORD wSecond;
          WORD wMilliseconds;
    } SYSTEMTIME, *PSYSTEMTIME;
*/

// *sigh* Microsoft has this in winsock2.h because they are too lazy to put it in the standard location ... !?!?
#ifdef _MSC_VER
typedef struct timeval {
    long tv_sec;
    long tv_usec;
} timeval;
#endif

// *sigh* no gettimeofday on Win32/Win64
int gettimeofday(struct timeval* tp, void* tzp);
#else
#include <sys/time.h>
#endif

typedef enum _shape_t {
    SHAPE_LINE,
    SHAPE_RECTANGLE,
    SHAPE_ROUNDED_RECTANGLE,
    SHAPE_CIRCLE,
    SHAPE_TRIANGLE,
    SHAPE_STAR,
    SHAPE_RANDOM,
} shape_t;

extern uint32_t test_size;
extern uint32_t iterations;
extern uint32_t test_width;
extern uint32_t test_height;
extern bool     no_test_size;

extern float panX;
extern float panY;
extern float lastX;
extern float lastY;
extern float zoom;
extern bool  mouseDown;

extern VkvgDevice  device;
extern VkvgSurface surf;

/* common context init for several tests */
extern float            dash_offset;
extern float            line_width;
extern vkvg_fill_rule_t fill_rule;
extern vkvg_line_cap_t  line_cap;
extern vkvg_line_join_t line_join;
extern float            dashes[];
extern uint32_t         dashes_count;

VkvgContext _initCtx();
void        _parse_args(int argc, char* argv[]);
/*******************************/

// run test in one step
void perform_test(void (*testfunc)(), const char* testName, int argc, char* argv[]);
void perform_test_onscreen(void (*testfunc)(void), const char* testName, int argc, char* argv[]);
void perform_test_offscreen(void (*testfunc)(void), const char* testName, int argc, char* argv[]);

void randomize_color(VkvgContext ctx);
void draw_random_shape(VkvgContext ctx, shape_t shape, float sizeFact);
void draw_random_curve(VkvgContext ctx);

// run test in 3 step: init, run, clear.
void init_test(uint32_t width, uint32_t height);
void clear_test();