/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <guththila_attribute.h>
#include <guththila_stack.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int GUTHTHILA_CALL
guththila_attr_list_grow(
    guththila_attr_list_t * at_list,
    int addition,
    const axutil_env_t * env)
{
    int i = 0;

    if(addition > 0 || (addition < 0 && at_list->capacity + addition > 0 && at_list->capacity
        + addition >= at_list->size))
    {
        at_list->list = (guththila_attr_t *)realloc(at_list->list, sizeof(guththila_attr_t)
            * (at_list->capacity + addition));

        if(at_list->list)
        {
            for(i = at_list->capacity; i < at_list->capacity + addition; i++)
            {
                guththila_stack_push(&at_list->fr_stack, at_list->list + i, env);
            }

            at_list->capacity += addition;
        }
        else
        {
            return GUTHTHILA_FAILURE;
        }
    }
    return 0;
}

guththila_attr_list_t *GUTHTHILA_CALL
guththila_attr_list_create(
    const axutil_env_t * env)
{
    int i = 0;
    guththila_attr_list_t * at_list = (guththila_attr_list_t *)AXIS2_MALLOC(env->allocator,
        sizeof(guththila_attr_list_t));

    if(!at_list)
        return NULL;

    at_list->list = (guththila_attr_t *)AXIS2_MALLOC(env->allocator, sizeof(guththila_attr_t)
        * GUTHTHILA_ATTR_DEF_SIZE);

    if(at_list->list && guththila_stack_init(&at_list->fr_stack, env))
    {
        at_list->capacity = GUTHTHILA_ATTR_DEF_SIZE;
        at_list->size = 0;
        for(i = 0; i < GUTHTHILA_ATTR_DEF_SIZE; i++)
        {
            guththila_stack_push(&at_list->fr_stack, at_list->list + i, env);
        }
        return at_list;
    }
    return NULL;
}

int GUTHTHILA_CALL
guththila_attr_list_init(
    guththila_attr_list_t * at_list,
    const axutil_env_t * env)
{
    int i = 0;
    at_list->list = (guththila_attr_t *)AXIS2_MALLOC(env->allocator, sizeof(guththila_attr_t)
        * GUTHTHILA_ATTR_DEF_SIZE);

    if(at_list->list && guththila_stack_init(&at_list->fr_stack, env))
    {
        at_list->capacity = GUTHTHILA_ATTR_DEF_SIZE;
        at_list->size = 0;
        for(i = 0; i < GUTHTHILA_ATTR_DEF_SIZE; i++)
        {
            guththila_stack_push(&at_list->fr_stack, at_list->list + i, env);
        }
        return GUTHTHILA_SUCCESS;
    }
    return GUTHTHILA_FAILURE;
}

guththila_attr_t *GUTHTHILA_CALL
guththila_attr_list_get(
    guththila_attr_list_t * at_list,
    const axutil_env_t * env)
{
    if(at_list->fr_stack.top > 0 || guththila_attr_list_grow(at_list, GUTHTHILA_ATTR_DEF_SIZE, env))
    {
        return guththila_stack_pop(&at_list->fr_stack, env);
    }

    return NULL;
}

int GUTHTHILA_CALL
guththila_attr_list_release(
    guththila_attr_list_t * at_list,
    guththila_attr_t * attr,
    const axutil_env_t * env)
{

    return guththila_stack_push(&at_list->fr_stack, attr, env);

}

void GUTHTHILA_CALL
msuila_attr_list_free_data(
    guththila_attr_list_t * at_list,
    const axutil_env_t * env)
{
    AXIS2_FREE(env->allocator, at_list->list);
    guththila_stack_un_init(&at_list->fr_stack, env);
}

void GUTHTHILA_CALL
guththila_attr_list_free(
    guththila_attr_list_t * at_list,
    const axutil_env_t * env)
{
    AXIS2_FREE(env->allocator, at_list->list);
    guththila_stack_un_init(&at_list->fr_stack, env);
    AXIS2_FREE(env->allocator, at_list);
}