#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

#include "ProtocolDiscriminator.h"
#include "EpsBearerIdentity.h"
#include "ProcedureTransactionIdentity.h"
#include "MessageType.h"
#include "LinkedEpsBearerIdentity.h"
#include "TrafficFlowAggregateDescription.h"
#include "EpsQualityOfService.h"
#include "ProtocolConfigurationOptions.h"

#ifndef BEARER_RESOURCE_ALLOCATION_REQUEST_H_
#define BEARER_RESOURCE_ALLOCATION_REQUEST_H_

/* Minimum length macro. Formed by minimum length of each mandatory field */
#define BEARER_RESOURCE_ALLOCATION_REQUEST_MINIMUM_LENGTH ( \
    TRAFFIC_FLOW_AGGREGATE_DESCRIPTION_MINIMUM_LENGTH + \
    EPS_QUALITY_OF_SERVICE_MINIMUM_LENGTH )

/* Maximum length macro. Formed by maximum length of each field */
#define BEARER_RESOURCE_ALLOCATION_REQUEST_MAXIMUM_LENGTH ( \
    TRAFFIC_FLOW_AGGREGATE_DESCRIPTION_MAXIMUM_LENGTH + \
    EPS_QUALITY_OF_SERVICE_MAXIMUM_LENGTH + \
    PROTOCOL_CONFIGURATION_OPTIONS_MAXIMUM_LENGTH )

/* If an optional value is present and should be encoded, the corresponding
 * Bit mask should be set to 1.
 */
# define BEARER_RESOURCE_ALLOCATION_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT (1<<0)

typedef enum bearer_resource_allocation_request_iei_tag {
    BEARER_RESOURCE_ALLOCATION_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI  = 0x27, /* 0x27 = 39 */
} bearer_resource_allocation_request_iei;

/*
 * Message name: Bearer resource allocation request
 * Description: This message is sent by the UE to the network to request the allocation of a dedicated bearer resource. See table 8.3.8.1.
 * Significance: dual
 * Direction: UE to network
 */

typedef struct bearer_resource_allocation_request_msg_tag {
    /* Mandatory fields */
    ProtocolDiscriminator                          protocoldiscriminator:4;
    EpsBearerIdentity                              epsbeareridentity:4;
    ProcedureTransactionIdentity                   proceduretransactionidentity;
    MessageType                                    messagetype;
    LinkedEpsBearerIdentity                        linkedepsbeareridentity;
    TrafficFlowAggregateDescription                trafficflowaggregate;
    EpsQualityOfService                            requiredtrafficflowqos;
    /* Optional fields */
    uint32_t                                       presencemask;
    ProtocolConfigurationOptions                   protocolconfigurationoptions;
} bearer_resource_allocation_request_msg;

int decode_bearer_resource_allocation_request(bearer_resource_allocation_request_msg *bearerresourceallocationrequest, uint8_t *buffer, uint32_t len);

int encode_bearer_resource_allocation_request(bearer_resource_allocation_request_msg *bearerresourceallocationrequest, uint8_t *buffer, uint32_t len);

#endif /* ! defined(BEARER_RESOURCE_ALLOCATION_REQUEST_H_) */

