#include "web_opts.h"

#include "comp.h"

#include <math.h>
#include <stdio.h>
#include <string.h>

#include <emscripten/emscripten.h>

int delay_ms = 1000;

void opts_init()
{
	EM_ASM(readOpts());

	char buf[64];
	sprintf(buf, "%d", delay_ms);
	EM_ASM({elemSetValue($0, $1)}, "#delay", buf);

	int len = sprintf(buf, "%4.2f", horizontal_stdev);
	char *dot = strchr(buf, '.');
	if (dot) {
		for (char *ptr = buf + len - 1; ptr >= dot; --ptr) {
			if (*ptr != '0' && *ptr != '.')
				break;
			*ptr = 0;
		}
	}
	EM_ASM({elemSetValue($0, $1)}, "#stdev", buf);
}

EMSCRIPTEN_KEEPALIVE
void set_delay(int delay)
{
	delay_ms = delay;
}

EMSCRIPTEN_KEEPALIVE
void set_stdev(float stdev)
{
	if (!isnan(stdev))
		horizontal_stdev = vertical_stdev = stdev;
}