/*
 * ua_connection_manager.c
 *
 *  Created on: 11.05.2014
 *      Author: open62541
 */

#include "ua_transport_connection_manager.h"
#include "ua_indexedList.h"

typedef struct UA_TL_ConnectionManager
{
	UA_list_List connections;
	UA_UInt32 maxConnectionCount;
	UA_UInt32 currentConnectionCount;
}UA_TL_ConnectionManager;


static UA_TL_ConnectionManager *connectionManager = UA_NULL;


UA_Int32 UA_TL_ConnectionManager_init(UA_UInt32 maxConnectionCount)
{
	UA_Int32 retval = UA_SUCCESS;
	if(connectionManager == UA_NULL)
	{
		retval |= UA_alloc((void**)&connectionManager,sizeof(UA_TL_ConnectionManager));
		connectionManager->maxConnectionCount = maxConnectionCount;
		connectionManager->currentConnectionCount = 0;
		retval |= UA_indexedList_init(&connectionManager->connections);
		return UA_SUCCESS;
	}
	return UA_ERROR; //connection Manager already exists

}
UA_Int32 UA_TL_ConnectionManager_addConnection(UA_TL_Connection *connection)
{
	UA_UInt32 connectionId;
	UA_TL_Connection_getHandle(*connection, &connectionId);
	printf("UA_TL_ConnectionManager_addConnection - added connection with handle = %d \n", connectionId);
	return UA_list_addPayloadToBack(&(connectionManager->connections), (void*)connection);
}


UA_Int32 UA_TL_ConnectionManager_removeConnection(UA_TL_Connection connection)
{
	UA_list_Element *element =  UA_list_find(&connectionManager->connections, (UA_list_PayloadMatcher)UA_TL_Connection_compare);

	if(element)
	{
		UA_list_removeElement(element, (UA_list_PayloadVisitor)UA_TL_Connection_delete);
	}
	return UA_SUCCESS;
}

UA_Int32 UA_TL_ConnectionManager_getConnectionByHandle(UA_UInt32 connectionId, UA_TL_Connection *connection)
{
	UA_UInt32 tmpConnectionHandle;
	if(connectionManager)
	{
		UA_list_Element* current = connectionManager->connections.first;
		while (current)
		{
			if (current->payload)
			{
				UA_list_Element* elem = (UA_list_Element*) current;
				*connection = *((UA_TL_Connection*) (elem->payload));
				UA_TL_Connection_getHandle(*connection, &tmpConnectionHandle);

				if(tmpConnectionHandle == connectionId)
				{
					return UA_SUCCESS;
				}
			}
			current = current->next;
		}
	}
	*connection = UA_NULL;
	return UA_ERROR;
}