/*
 * Licensed 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.
 * 
 * -----------------------------------------------------------------------------
 * File: Stack.c
 * Description:
 *  This file contains the functions for modifying the stack. It includes functions 
 *  to Push, Pop, Peek and check if empty.
 * 
 * Author: Mineplay
 * -----------------------------------------------------------------------------
 */
#include "../../Include/Fledasty/Core/Stack.h"

#include <Hallocy/Core/Allocator.h>
#include <Hallocy/Core/Memory.h>
#include <Hallocy/Utils/Error.h>

FledastyError fledasty_stack_initialize(FledastyStack *new_stack, const size_t element_byte_size) {
    if (new_stack == NULL) {
        return FLEDASTY_ERROR_INVALID_POINTER;
    }

    new_stack->size = 0;
    new_stack->capacity = 10;
    new_stack->element_byte_size = element_byte_size;

    new_stack->buffer = (unsigned char*)hallocy_malloc(new_stack->capacity * element_byte_size);
    if (new_stack->buffer == NULL) {
        return FLEDASTY_ERROR_FAILED_ALLOCATION;
    }

    return FLEDASTY_ERROR_NONE;
}

FledastyError fledasty_stack_destroy(FledastyStack *current_stack) {
    if (current_stack == NULL) {
        return FLEDASTY_ERROR_INVALID_POINTER;
    }

    HallocyError result = hallocy_free(current_stack->buffer);
    if (result != HALLOCY_ERROR_NONE) {
        return FLEDASTY_ERROR_FAILED_ALLOCATION;
    }

    current_stack->buffer = NULL;
    return FLEDASTY_ERROR_NONE;
}