/*
 * Copyright (c) 2015 - 2016 Samsung Electronics Co., Ltd All Rights Reserved
 *
 * 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.
 */


#ifndef __IOTCON_STRUCT_RESOURCE_INTERFACES_H__
#define __IOTCON_STRUCT_RESOURCE_INTERFACES_H__


#include <iotcon-types.h>


/**
 * @file iotcon-resource-interfaces.h
 */


/**
 * @ingroup CAPI_IOT_CONNECTIVITY_COMMON_MODULE
 * @defgroup CAPI_IOT_CONNECTIVITY_COMMON_RESOURCE_INTERFACES_MODULE Resource Interfaces
 * @brief IoTCon Resource Interfaces provides API to manage resource interfaces.
 * @section CAPI_IOT_CONNECTIVITY_COMMON_RESOURCE_INTERFACES_MODULE_HEADER Required Header
 *          \#include <iotcon.h>
 * @section CAPI_IOT_CONNECTIVITY_COMMON_RESOURCE_INTERFACES_MODULE_OVERVIEW Overview
 *          The IoTCon Resource Interfaces API provides methods for managing handle and add, remove resource interfaces.
 *          A resource interface indicates a class or category of resources.
 * Example :
 * @code
#include <iotcon.h>
static void _request_handler(iotcon_resource_h resource, iotcon_request_h request,
		void *user_data)
{
	// handle request
	...
}

static void _create_light_resource()
{
	int ret;
	iotcon_resource_h resource = NULL;
	iotcon_resource_interfaces_h resource_ifaces = NULL;
	iotcon_resource_types_h resource_types = NULL;

	ret = iotcon_resource_types_create(&resource_types);
	if (IOTCON_ERROR_NONE != ret)
		return;

	ret = iotcon_resource_types_add(resource_types, "org.tizen.light");
	if (IOTCON_ERROR_NONE != ret) {
		iotcon_resource_types_destroy(resource_types);
		return;
	}

	ret = iotcon_resource_interfaces_create(&resource_ifaces);
	if (IOTCON_ERROR_NONE != ret)
		iotcon_resource_types_destroy(resource_types);
		return;

	ret = iotcon_resource_interfaces_add(resource_ifaces, IOTCON_INTERFACE_DEFAULT);
	if (IOTCON_ERROR_NONE != ret) {
		iotcon_resource_interfaces_destroy(resource_ifaces);
		iotcon_resource_types_destroy(resource_types);
		return;
	}

	ret = iotcon_resource_create("/light/1", resource_types, resource_ifaces,
			IOTCON_RESOURCE_DISCOVERABLE | IOTCON_RESOURCE_OBSERVABLE, _request_handler, NULL, &resource);
	if (IOTCON_ERROR_NONE != ret) {
		iotcon_resource_interfaces_destroy(resource_ifaces);
		iotcon_resource_types_destroy(resource_types);
		return;
	}

	iotcon_resource_interfaces_destroy(resource_ifaces);
	iotcon_resource_types_destroy(resource_types);
}
 * @endcode
 * @section CAPI_IOT_CONNECTIVITY_COMMON_RESOURCE_INTERFACES_MODULE_FEATURE Related Features
 *          This API is related with the following features: \n
 *          - %http://tizen.org/feature/iot.ocf \n
 *          It is recommended to design feature related codes in your application for reliability. \n
 *          You can check if a device supports the related features for this API by using @ref CAPI_SYSTEM_SYSTEM_INFO_MODULE, thereby controlling the procedure of your application. \n
 *          To ensure your application is only running on the device with specific features, please define the features in your manifest file using the manifest editor in the SDK. \n
 *          More details on featuring your application can be found from <a href="https://docs.tizen.org/application/tizen-studio/native-tools/manifest-text-editor#feature-element"><b>Feature Element</b>.</a>
 * @{
 */


/**
 * @brief Creates a new resource interfaces handle.
 * @since_tizen 3.0
 * @remarks You must destroy @a ifaces by calling iotcon_resource_interfaces_destroy() if @a ifaces is no longer needed.
 * @param[out] ifaces A newly allocated list of resource ifaces handle
 * @return @c 0 on success,
 *         otherwise a negative error value
 * @retval #IOTCON_ERROR_NONE Successful
 * @retval #IOTCON_ERROR_NOT_SUPPORTED Not supported
 * @retval #IOTCON_ERROR_OUT_OF_MEMORY Out of memory
 * @retval #IOTCON_ERROR_INVALID_PARAMETER Invalid parameter
 * @see iotcon_resource_interfaces_destroy()
 * @see iotcon_resource_interfaces_add()
 * @see iotcon_resource_interfaces_remove()
 * @see iotcon_resource_interfaces_clone()
 */
int iotcon_resource_interfaces_create(iotcon_resource_interfaces_h *ifaces);


/**
 * @brief Destroys a resource ifaces handle.
 * @since_tizen 3.0
 * @param[in] ifaces The handle of the resource ifaces
 * @return @c 0 on success,
 *         otherwise a negative error value
 * @retval #IOTCON_ERROR_NONE Successful
 * @retval #IOTCON_ERROR_NOT_SUPPORTED Not supported
 * @retval #IOTCON_ERROR_INVALID_PARAMETER Invalid parameter
 * @see iotcon_resource_interfaces_create()
 * @see iotcon_resource_interfaces_add()
 * @see iotcon_resource_interfaces_remove()
 * @see iotcon_resource_interfaces_clone()
 */
int iotcon_resource_interfaces_destroy(iotcon_resource_interfaces_h ifaces);


/**
 * @brief Inserts a resource iface into the list.
 * @since_tizen 3.0
 * @remarks @a iface could be a value such as #IOTCON_INTERFACE_DEFAULT.
 * @param[in] ifaces The handle of the resource ifaces
 * @param[in] iface The string data to insert into the resource ifaces
 * @return @c 0 on success,
 *         otherwise a negative error value
 * @retval #IOTCON_ERROR_NONE Successful
 * @retval #IOTCON_ERROR_NOT_SUPPORTED Not supported
 * @retval #IOTCON_ERROR_INVALID_PARAMETER Invalid parameter
 * @retval #IOTCON_ERROR_ALREADY Already done
 * @see iotcon_resource_interfaces_create()
 * @see iotcon_resource_interfaces_destroy()
 * @see iotcon_resource_interfaces_remove()
 * @see iotcon_resource_interfaces_clone()
 */
int iotcon_resource_interfaces_add(iotcon_resource_interfaces_h ifaces, const char *iface);


/**
 * @brief Deletes a resource iface from the list.
 * @since_tizen 3.0
 * @remarks @a iface could be a value such as #IOTCON_INTERFACE_DEFAULT.
 * @param[in] ifaces The handle of the resource ifaces
 * @param[in] iface The string data to delete from the resource ifaces
 * @return @c 0 on success,
 *         otherwise a negative error value
 * @retval #IOTCON_ERROR_NONE Successful
 * @retval #IOTCON_ERROR_NOT_SUPPORTED Not supported
 * @retval #IOTCON_ERROR_INVALID_PARAMETER Invalid parameter
 * @retval #IOTCON_ERROR_NO_DATA No data available
 * @see iotcon_resource_interfaces_create()
 * @see iotcon_resource_interfaces_destroy()
 * @see iotcon_resource_interfaces_add()
 * @see iotcon_resource_interfaces_clone()
 */
int iotcon_resource_interfaces_remove(iotcon_resource_interfaces_h ifaces, const char *iface);


/**
 * @brief Specifies the iface of function passed to iotcon_resource_interfaces_foreach().
 * @since_tizen 3.0
 * @remarks @a iface could be a value such as #IOTCON_INTERFACE_DEFAULT.
 * @param[in] iface The value of the resource ifaces
 * @param[in] user_data The user data to pass to the function
 * @return @c true to continue with the next iteration of the loop,
 *         otherwise @c false to break out of the loop
 *         #IOTCON_FUNC_CONTINUE and #IOTCON_FUNC_STOP are more friendly values for the return
 * @pre iotcon_resource_interfaces_foreach() will invoke this callback function.
 * @see iotcon_resource_interfaces_foreach()
 */
typedef bool (*iotcon_resource_interfaces_foreach_cb)(const char *iface, void *user_data);


/**
 * @brief Gets all of the resource ifaces of the list by invoking the callback function.
 * @details iotcon_resource_interfaces_foreach_cb() will be called for each iface. \n
 *          If iotcon_resource_interfaces_foreach_cb() returns false, iteration will be stopped.
 * @since_tizen 3.0
 * @param[in] ifaces The handle of resource ifaces
 * @param[in] cb The callback function to get data
 * @param[in] user_data The user data to pass to the function
 * @return @c 0 on success,
 *         otherwise a negative error value
 * @retval #IOTCON_ERROR_NONE Successful
 * @retval #IOTCON_ERROR_NOT_SUPPORTED Not supported
 * @retval #IOTCON_ERROR_INVALID_PARAMETER Invalid parameter
 * @post iotcon_resource_interfaces_foreach() will be called for each iface.
 * @see iotcon_resource_interfaces_foreach_cb()
 */
int iotcon_resource_interfaces_foreach(iotcon_resource_interfaces_h ifaces, iotcon_resource_interfaces_foreach_cb cb, void *user_data);


/**
 * @brief Clones the resource ifaces handle.
 * @details Makes a deep copy of a source list of resource ifaces.
 * @since_tizen 3.0
 * @remarks You must @a destroy dest by calling iotcon_resource_interfaces_destroy() if @a dest is no longer needed.
 * @param[in] src The origin handle of the resource ifaces
 * @param[out] dest Clone of a source list of resource ifaces
 * @return @c 0 on success,
 *         otherwise a negative error value
 * @retval #IOTCON_ERROR_NONE Successful
 * @retval #IOTCON_ERROR_NOT_SUPPORTED Not supported
 * @retval #IOTCON_ERROR_INVALID_PARAMETER Invalid parameter
 * @see iotcon_resource_interfaces_create()
 * @see iotcon_resource_interfaces_destroy()
 * @see iotcon_resource_interfaces_add()
 * @see iotcon_resource_interfaces_remove()
 */
int iotcon_resource_interfaces_clone(iotcon_resource_interfaces_h src, iotcon_resource_interfaces_h *dest);


/**
 * @}
 */


#endif /* __IOTCON_STRUCT_RESOURCE_INTERFACES_H__ */
