/*

 * Copyright (C) the libgit2 contributors. All rights reserved.

 *

 * This file is part of libgit2, distributed under the GNU GPL v2 with

 * a Linking Exception. For full terms see the included COPYING file.

 */

#include "strmap.h"

__KHASH_IMPL(str, static kh_inline, const char *, void *, 1, kh_str_hash_func, kh_str_hash_equal)

int git_strmap_alloc(git_strmap **map)

{

	if ((*map = kh_init(str)) == NULL) {

		giterr_set_oom();

		return -1;

	}

	return 0;

}

void git_strmap_free(git_strmap *map)

{

	kh_destroy(str, map);

}

void git_strmap_clear(git_strmap *map)

{

	kh_clear(str, map);

}

size_t git_strmap_num_entries(git_strmap *map)

{

	return kh_size(map);

}

size_t git_strmap_lookup_index(git_strmap *map, const char *key)

{

	return kh_get(str, map, key);

}

int git_strmap_valid_index(git_strmap *map, size_t idx)

{

	return idx != kh_end(map);

}

int git_strmap_exists(git_strmap *map, const char *key)

{

	return kh_get(str, map, key) != kh_end(map);

}

int git_strmap_has_data(git_strmap *map, size_t idx)

{

	return kh_exist(map, idx);

}

const char *git_strmap_key(git_strmap *map, size_t idx)

{

	return kh_key(map, idx);

}

void git_strmap_set_key_at(git_strmap *map, size_t idx, char *key)

{

	kh_val(map, idx) = key;

}

void *git_strmap_value_at(git_strmap *map, size_t idx)

{

	return kh_val(map, idx);

}

void git_strmap_set_value_at(git_strmap *map, size_t idx, void *value)

{

	kh_val(map, idx) = value;

}

void git_strmap_delete_at(git_strmap *map, size_t idx)

{

	kh_del(str, map, idx);

}

int git_strmap_put(git_strmap *map, const char *key, int *err)

{

	return kh_put(str, map, key, err);

}

void git_strmap_insert(git_strmap *map, const char *key, void *value, int *rval)

{

	khiter_t idx = kh_put(str, map, key, rval);

	if ((*rval) >= 0) {

		if ((*rval) == 0)

			kh_key(map, idx) = key;

		kh_val(map, idx) = value;

	}

}

void git_strmap_delete(git_strmap *map, const char *key)

{

	khiter_t idx = git_strmap_lookup_index(map, key);

	if (git_strmap_valid_index(map, idx))

		git_strmap_delete_at(map, idx);

}

int git_strmap_next(

	void **data,

	git_strmap_iter* iter,

	git_strmap *map)

{

	if (!map)

		return GIT_ERROR;

	while (*iter != git_strmap_end(map)) {

		if (!(git_strmap_has_data(map, *iter))) {

			++(*iter);

			continue;

		}

		*data = git_strmap_value_at(map, *iter);

		++(*iter);

		return GIT_OK;

	}

	return GIT_ITEROVER;

}