#ifndef PK_STR_H
#define PK_STR_H

#include "pkmem.h" /* deleteme */

#include <stdint.h>

struct pk_str {
	char *val;
	uint32_t length;
	uint32_t reserved;
};
struct pk_cstr {
	const char *val;
	uint32_t length;
	uint32_t reserved;
};

struct pk_str cstring_to_pk_str(char *s);
struct pk_cstr cstring_to_pk_cstr(const char *s);
struct pk_str pk_cstr_to_pk_str(const struct pk_cstr *s);
struct pk_cstr pk_str_to_pk_cstr(const struct pk_str *s);
struct pk_str pk_str_clone(const struct pk_str *s, struct pk_membucket *bkt);
struct pk_cstr pk_cstr_clone(const struct pk_cstr *s, struct pk_membucket *bkt);
int pk_compare_str(const struct pk_str *lhs, const struct pk_str *rhs);
int pk_compare_cstr(const struct pk_cstr *lhs, const struct pk_cstr *rhs);

#endif /* PK_STR_H */

#ifdef PK_IMPL_STR

#include "./pkmacros.h" /* deleteme */
#include <string.h>

struct pk_str
cstring_to_pk_str(char *s)
{
	struct pk_str ret;
	ret.val = s;
	ret.length = (uint32_t)(strlen(s));
	ret.reserved = 0;
	return ret;
}

struct pk_cstr
cstring_to_pk_cstr(const char *s)
{
	struct pk_cstr ret;
	ret.val = s;
	ret.length = (uint32_t)(strlen(s));
	ret.reserved = 0;
	return ret;
}

struct pk_str
pk_cstr_to_pk_str(const struct pk_cstr *s)
{
	struct pk_str ret;
	ret.val = (char *)s->val;
	ret.length = s->length;
	ret.reserved = s->reserved;
	return ret;
}

struct pk_cstr
pk_str_to_pk_cstr(const struct pk_str *s)
{
	struct pk_cstr ret;
	ret.val = (char *)s->val;
	ret.length = s->length;
	ret.reserved = s->reserved;
	return ret;
}

struct pk_str
pk_str_clone(const struct pk_str *s, struct pk_membucket *bkt) {
	struct pk_str str;
	str.length = s->length == 0 ? strlen(s->val) : s->length;
	str.reserved = s->length + 1;
	char *ss = (char*)pk_new(str.reserved * sizeof(char), alignof(char), bkt);
	strncpy(ss, s->val, str.reserved);
	str.val = ss;
	return str;
}

struct pk_cstr
pk_cstr_clone(const struct pk_cstr *s, struct pk_membucket *bkt) {
	struct pk_cstr str;
	str.length = s->length == 0 ? strlen(s->val) : s->length;
	str.reserved = s->length + 1;
	char *ss = (char*)pk_new(str.reserved * sizeof(char), alignof(char), bkt);
	strncpy(ss, s->val, str.reserved);
	str.val = ss;
	return str;
}

int
pk_compare_str(const struct pk_str *lhs, const struct pk_str *rhs)
{
	return strncmp(lhs->val, rhs->val, PK_MIN(lhs->length, rhs->length));
}

int
pk_compare_cstr(const struct pk_cstr *lhs, const struct pk_cstr *rhs)
{
	return strncmp(lhs->val, rhs->val, PK_MIN(lhs->length, rhs->length));
}

#endif /* PK_IMPL_STR */