#include "rgba.h"

duk_ret_t compare_rgba(duk_context * ctx) {
	unsigned int color1 = get_color(ctx, 0);
	unsigned int color2 = get_color(ctx, 1);

	duk_push_boolean(ctx, color1 == color2);

	return 1;
}

duk_ret_t rgba(duk_context * ctx) {
	int r = duk_get_number(ctx, 0);
	int g = duk_get_number(ctx, 1);
	int b = duk_get_number(ctx, 2);
	int a = duk_get_number(ctx, 3);

	if (r > 255 || g > 255 || b > 255 || a > 255) {
		return duk_error(ctx, DUK_ERR_ERROR, "You can't use a number bigger then 255.");
	}

	unsigned char * buffer;
	buffer = duk_push_fixed_buffer(ctx, 4);
	buffer[0] = r;
	buffer[1] = g;
	buffer[2] = b;
	buffer[3] = a;

	return 1;
}

unsigned int get_color(duk_context * ctx, duk_idx_t index) {
	size_t rgba_size;
	unsigned char * rgba = duk_get_buffer(ctx, index, &rgba_size);
	return rgba[0] << 24 | rgba[1] << 16 | rgba[2] << 8 | rgba[3];
}