/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 * Video Capture Virtual Channel Extension
 *
 * Copyright 2022 Pascal Nowack <Pascal.Nowack@gmx.de>
 *
 * 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 FREERDP_CHANNEL_CAM_DEV_ENUM_SERVER_CAM_DEV_ENUM_H
#define FREERDP_CHANNEL_CAM_DEV_ENUM_SERVER_CAM_DEV_ENUM_H

#include <freerdp/channels/rdpecam.h>
#include <freerdp/channels/wtsvc.h>

#ifdef __cplusplus
extern "C"
{
#endif

	typedef struct s_cam_dev_enum_server_context CamDevEnumServerContext;

	typedef UINT (*psCamDevEnumServerServerOpen)(CamDevEnumServerContext* context);
	typedef UINT (*psCamDevEnumServerServerClose)(CamDevEnumServerContext* context);

	typedef BOOL (*psCamDevEnumServerServerChannelIdAssigned)(CamDevEnumServerContext* context,
	                                                          UINT32 channelId);

	typedef UINT (*psCamDevEnumServerServerInitialize)(CamDevEnumServerContext* context,
	                                                   BOOL externalThread);
	typedef UINT (*psCamDevEnumServerServerPoll)(CamDevEnumServerContext* context);
	typedef BOOL (*psCamDevEnumServerServerChannelHandle)(CamDevEnumServerContext* context,
	                                                      HANDLE* handle);

	typedef UINT (*psCamDevEnumServerServerSelectVersionRequest)(
	    CamDevEnumServerContext* context, const CAM_SELECT_VERSION_REQUEST* selectVersionRequest);
	typedef UINT (*psCamDevEnumServerServerSelectVersionResponse)(
	    CamDevEnumServerContext* context, const CAM_SELECT_VERSION_RESPONSE* selectVersionResponse);

	typedef UINT (*psCamDevEnumServerServerDeviceAddedNotification)(
	    CamDevEnumServerContext* context,
	    const CAM_DEVICE_ADDED_NOTIFICATION* deviceAddedNotification);
	typedef UINT (*psCamDevEnumServerServerDeviceRemovedNotification)(
	    CamDevEnumServerContext* context,
	    const CAM_DEVICE_REMOVED_NOTIFICATION* deviceRemovedNotification);

	struct s_cam_dev_enum_server_context
	{
		HANDLE vcm;

		/* Server self-defined pointer. */
		void* userdata;

		/*** APIs called by the server. ***/

		/**
		 * Optional: Set thread handling.
		 * When externalThread=TRUE, the application is responsible to call
		 * Poll() periodically to process channel events.
		 *
		 * Defaults to externalThread=FALSE
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerInitialize Initialize;

		/**
		 * Open the camera device enumerator channel.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerOpen Open;

		/**
		 * Close the camera device enumerator channel.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerClose Close;

		/**
		 * Poll
		 * When externalThread=TRUE, call Poll() periodically from your main loop.
		 * If externalThread=FALSE do not call.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerPoll Poll;

		/**
		 * Retrieve the channel handle for use in conjunction with Poll().
		 * If externalThread=FALSE do not call.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerChannelHandle ChannelHandle;

		/*
		 * Send a Select Version Response PDU.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerSelectVersionResponse SelectVersionResponse;

		/*** Callbacks registered by the server. ***/

		/**
		 * Callback, when the channel got its id assigned.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerChannelIdAssigned ChannelIdAssigned;

		/**
		 * Callback for the Select Version Request PDU.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerSelectVersionRequest SelectVersionRequest;

		/**
		 * Callback for the Device Added Notification PDU.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerDeviceAddedNotification
		    DeviceAddedNotification;

		/**
		 * Callback for the Device Removed Notification PDU.
		 */
		WINPR_ATTR_NODISCARD psCamDevEnumServerServerDeviceRemovedNotification
		    DeviceRemovedNotification;

		rdpContext* rdpcontext;
	};

	FREERDP_API void cam_dev_enum_server_context_free(CamDevEnumServerContext* context);

	WINPR_ATTR_MALLOC(cam_dev_enum_server_context_free, 1)
	WINPR_ATTR_NODISCARD
	FREERDP_API CamDevEnumServerContext* cam_dev_enum_server_context_new(HANDLE vcm);

#ifdef __cplusplus
}
#endif

#endif /* FREERDP_CHANNEL_CAM_DEV_ENUM_SERVER_CAM_DEV_ENUM_H */
