/**

 * WinPR: Windows Portable Runtime

 * JSON configuration read helpers

 *

 * Copyright 2026 Armin Novak <anovak@thincast.com>

 *

 * 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 <math.h>

#include <float.h>

#include <winpr/config-readers.h>

#include "../log.h"

#define TAG WINPR_TAG("utils.config-readers")

BOOL winpr_config_apply_bool(const char* config, WINPR_JSON* json, const char* name, BOOL* dst)

{

  WINPR_ASSERT(dst);

  WINPR_JSON* obj = WINPR_JSON_GetObjectItemCaseSensitive(json, name);

  if (!obj)

    return FALSE;

  if (!WINPR_JSON_IsBool(obj))

  {

    WLog_WARN(TAG, "[%s] Invalid setting %s: must be of type bool", config, name);

    return FALSE;

  }

  *dst = WINPR_JSON_IsTrue(obj);

  return TRUE;

}

BOOL winpr_config_apply_string(const char* config, WINPR_JSON* json, const char* name, char** dst)

{

  WINPR_ASSERT(dst);

  WINPR_JSON* obj = WINPR_JSON_GetObjectItemCaseSensitive(json, name);

  if (!obj)

    return FALSE;

  if (!WINPR_JSON_IsString(obj))

  {

    WLog_WARN(TAG, "[%s] Invalid setting %s: must be of type string", config, name);

    return FALSE;

  }

  const char* val = WINPR_JSON_GetStringValue(obj);

  free(*dst);

  *dst = nullptr;

  if (val)

  {

    *dst = _strdup(val);

    if (!*dst)

      return FALSE;

  }

  return TRUE;

}

BOOL winpr_config_apply_uint32(const char* config, WINPR_JSON* json, const char* name, UINT32* dst)

{

  WINPR_ASSERT(dst);

  WINPR_JSON* obj = WINPR_JSON_GetObjectItemCaseSensitive(json, name);

  if (!obj)

    return FALSE;

  if (!WINPR_JSON_IsNumber(obj))

  {

    WLog_WARN(TAG, "[%s] Invalid setting %s: must be of type bool", config, name);

    return FALSE;

  }

  const double val = WINPR_JSON_GetNumberValue(obj);

  double integer = 0.0;

  const double fractional = modf(val, &integer);

  if (signbit(val) || isnan(val) || isinf(val) || (val > UINT32_MAX) ||

      (fabs(fractional) > DBL_EPSILON))

  {

    WLog_WARN(TAG, "[%s] Invalid setting %s: value must be 0 <= %f <= %" PRIu32, config, name,

              val, UINT32_MAX);

    return FALSE;

  }

  *dst = (UINT32)integer;

  return TRUE;

}