#include <string.h>

#include <kalmia.h>
#include "util/util.h"
#include "xml/xml.h"
#include "geometry.h"


/* macro to ensure tag type matches what we expect */
#define CHECK_TAG_TYPE(expected) \
if (strcmp(src->type, expected) != 0) { \
	return -1; \
}


int kai_read_float_array(struct ka_float_array_t *dest, struct kai_tag_t *src)
{
	CHECK_TAG_TYPE("float_array");

	long count = kai_tag_attr_to_long(src, "count", -1);
	if (count == -1) {
		/* count not present */
		return -1;
	}

	dest->count = count;
	dest->id = kai_tag_attr_to_dup(src, "id");
	dest->digits = kai_tag_attr_to_long(src, "digits", 6);
	dest->magnitude = kai_tag_attr_to_long(src, "magnitude", 38);

	/* allocate & fill buffer */
	dest->buf = malloc(dest->count * sizeof(ka_real_t));
	kai_text_to_reals(dest->buf, src->content, dest->count);

	return 0;
}


int kai_read_param(struct ka_param_t *dest, struct kai_tag_t *src)
{
	CHECK_TAG_TYPE("param");

	char *type = kai_tag_attr_to_dup(src, "type");
	if (type == NULL) {
		return -1;
	}

	dest->name = kai_tag_attr_to_dup(src, "name");
	dest->sid = kai_tag_attr_to_dup(src, "sid");
	dest->type = type;
	dest->semantic = kai_tag_attr_to_dup(src, "semantic");

	return 0;
}