/*
 * Copyright (C) 2024 Huawei Device Co., Ltd.
 * 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.
 */
#include <cJSON.h>

#include "cJsonMock.h"

using namespace OHOS::FileManagement::Backup;

static int CaseInsensitiveStrcmp(const unsigned char *string1, const unsigned char *string2)
{
    if ((string1 == NULL) || (string2 == NULL)) {
        return 1;
    }

    if (string1 == string2) {
        return 0;
    }

    for (; tolower(*string1) == tolower(*string2); (void)string1++, string2++) {
        if (*string1 == '\0') {
            return 0;
        }
    }

    return tolower(*string1) - tolower(*string2);
}

static cJSON *GetObjectItem(const cJSON * const object, const char * const name, const cJSON_bool caseSensitive)
{
    cJSON *current_element = NULL;

    if ((object == NULL) || (name == NULL)) {
        return NULL;
    }

    current_element = object->child;
    if (caseSensitive) {
        while ((current_element != NULL) && (current_element->string != NULL) &&
            (strcmp(name, current_element->string) != 0)) {
            current_element = current_element->next;
        }
    } else {
        while ((current_element != NULL) &&
            (CaseInsensitiveStrcmp((const unsigned char*)name, (const unsigned char*)(current_element->string)) != 0)) {
            current_element = current_element->next;
        }
    }

    if ((current_element == NULL) || (current_element->string == NULL)) {
        return NULL;
    }

    return current_element;
}

CJSON_PUBLIC(void) CJSONDelete(cJSON *item)
{
    cJSON *next = NULL;
    while (item != NULL)
    {
        next = item->next;
        if (!(item->type & cJSON_IsReference) && (item->child != NULL))
        {
            CJSONDelete(item->child);
        }
        if (!(item->type & cJSON_IsReference) && (item->valuestring != NULL))
        {
            free(item->valuestring);
            item->valuestring = NULL;
        }
        if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
        {
            free(item->string);
            item->string = NULL;
        }
        if (next == item)
        {
            break;
        }
        free(item);
        item = next;
    }
}

CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void)
{
    return CJson::cJsonPtr->cJSON_CreateArray();
}

CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void)
{
    return CJson::cJsonPtr->cJSON_CreateObject();
}

CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item)
{
    return CJson::cJsonPtr->cJSON_Print(item);
}

CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value)
{
    return (CJson::cJsonPtr == nullptr) ? cJSON_ParseWithOpts(value, 0, 0) : CJson::cJsonPtr->cJSON_Parse(value);
}

CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON *const object, const char *const string)
{
    return (CJson::cJsonPtr == nullptr) ? GetObjectItem(object, string, false) :
        CJson::cJsonPtr->cJSON_GetObjectItem(object, string);
}

CJSON_PUBLIC(void) cJSON_Delete(cJSON *item)
{
    return (CJson::cJsonPtr == nullptr) ? CJSONDelete(item) : CJson::cJsonPtr->cJSON_Delete(item);
}

CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
{
    return CJson::cJsonPtr->cJSON_AddItemToObject(object, string, item);
}

CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array)
{
    return CJson::cJsonPtr->cJSON_GetArraySize(array);
}

CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item)
{
    return CJson::cJsonPtr->cJSON_AddItemToArray(array, item);
}

CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string)
{
    return CJson::cJsonPtr->cJSON_AddStringToObject(object, name, string);
}

static CJSON_PUBLIC(cJSON_bool) IsArray(const cJSON * const item)
{
    if (item == NULL) {
        return false;
    }

    return (item->type & 0xFF) == cJSON_Array;
}

CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item)
{
    return (CJson::cJsonPtr == nullptr) ? IsArray(item) : CJson::cJsonPtr->cJSON_IsArray(item);
}

CJSON_PUBLIC(void) cJSON_free(void *object)
{
    return (CJson::cJsonPtr == nullptr) ? free(object) : CJson::cJsonPtr->cJSON_free(object);
}