/*
 * 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: String.c
 * Description:
 *  This file contains the functions for modifying the String. It includes 
 *  functions to append, Insert at index, insert before character,
 *  insert before string, insert after character, insert after string, replace,
 *  copy, pop, remove, remove range, clear, check if contains string, check if
 *  empty. 
 * 
 * Author: Mineplay
 * -----------------------------------------------------------------------------
 */
#include "../../Include/Fledasty/Strings/String.h"

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

FledastyError fledasty_string_free(FledastyString *current_string) {
    if (current_string == NULL) {
        return FLEDASTY_ERROR_INVALID_POINTER;
    }

    if (hallocy_free(current_string->character_string) != HALLOCY_ERROR_NONE) {
        return FLEDASTY_ERROR_FAILED_ALLOCATION;
    }

    current_string->character_string = NULL;
    return FLEDASTY_ERROR_NONE;
}

FledastyError fledasty_string_append(FledastyString *current_string, char *character_string, const size_t character_string_size) {
    if (current_string == NULL || character_string == NULL || character_string_size == 0) {
        return FLEDASTY_ERROR_INVALID_POINTER;
    }

    if (current_string->capacity <= current_string->size + character_string_size) {
        current_string->capacity += (current_string->capacity > character_string_size) ? current_string->capacity : character_string_size + 1;
        current_string->character_string = (char*)hallocy_realloc(current_string->character_string, current_string->capacity * sizeof(unsigned char));

        if (current_string->character_string == NULL) {
            return FLEDASTY_ERROR_FAILED_ALLOCATION;
        }
    }

    hallocy_copy_memory(current_string->character_string + current_string->size, character_string, character_string_size);

    current_string->size += character_string_size;
    current_string->character_string[current_string->size] = '\0';

    return FLEDASTY_ERROR_NONE;
}