/*
 * Copyright (c) 2023 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.
 */

 /**
 * @addtogroup HdiLpfenceCellfence
 * @{
 *
 * @brief Provides cell fence APIs for low-power fence services.
 *
 * You can use the APIs to add or remove cell fences and obtain cell fence information of a device.
 * The cell fence module is used to determine whether a device reaches a comparatively large area, so that subsequent services, for example, pushing the scenic spot introduction to tourists, can be implemented.
 *
 * @since 4.0
 * @version 1.0
 */

/**
 * @file ICellfenceCallback.idl
 *
 * @brief Defines the callbacks of the cell fence module.
 *
 * @since 4.0
 * @version 1.0
 */

/**
 * @brief Declares the path of the cell fence module interface package.
 *
 * @since 4.0
 */
package ohos.hdi.location.lpfence.cellfence.v1_0;

/**
 * @brief Imports data types of the cell fence module.
 *
 * @since 4.0
 */
import ohos.hdi.location.lpfence.cellfence.v1_0.CellfenceTypes;

/**
 * @brief Defines the callback of the cell fence module.
 *
 * Before enabling the cell fencing feature, you need to register the callback to report the cell fence status when the relationship between a cell fence and a device changes.
 * For details, see {@link ICellfenceInterface}.
 *
 * @since 4.0
 */
[callback] interface ICellfenceCallback {
    /**
     * @brief Called to report the cell fence status changes.
     *
     * This callback will be invoked to report the cell fence status when the relationship between a device and a cell fence changes.
     *
     * @param fences Indicates the cell fence status change to report. For details, see {@link CellfenceStatus}.
     *
     * @return Returns <b>0</b> if the callback is invoked successfully.
     * @return Returns a negative value if the callback fails to be invoked.
     *
     * @since 4.0
     */
    OnCellfenceChanged([in] struct CellfenceStatus fences);

    /**
     * @brief Called to report the cell fence information of a device.
     *
     *
     * @param size Indicates the cell fence information obtained. For details, see {@link CellfenceSize}.
     *
     * @return Returns <b>0</b> if the callback is invoked successfully.
     * @return Returns a negative value if the callback fails to be invoked.
     *
     * @since 4.0
     */
    OnGetCellfenceSizeCb([in] struct CellfenceSize size);

    /**
     * @brief Called when the low-power fence service is reset.
     *
     *
     * @return Returns <b>0</b> if the callback is invoked successfully.
     * @return Returns a negative value if the callback fails to be invoked.
     *
     * @since 4.0
     */
    OnCellfenceReset();
}
/** @} */