#include "IdentityResponse.hpp"
#include "3gpp_ts24501.hpp"
#include "logger.hpp"

using namespace nas;

IdentityResponse::IdentityResponse() {
	Logger::nas_mm().debug("initiating class IdentityResponse");
	plain_header = NULL;
	ie_mobility_id = NULL;
}

IdentityResponse::~IdentityResponse() {}

void IdentityResponse::setHeader(uint8_t security_header_type) {
	plain_header = new NasMmPlainHeader();
	plain_header->setHeader(EPD_5GS_MM_MSG, security_header_type, IDENTITY_RESPONSE);
}
void IdentityResponse::setSUCI_SUPI_format_IMSI(const string mcc, const string mnc, const string routingInd, uint8_t protection_sch_id, const string msin) {
	if (protection_sch_id != NULL_SCHEME) {
		Logger::nas_mm().error("encoding suci and supi format for imsi error, please choose right interface");
		return;
	}
	else {
		ie_mobility_id = new _5GSMobilityIdentity(mcc, mnc, routingInd, protection_sch_id, msin);
	}
}

void IdentityResponse::setSUCI_SUPI_format_IMSI(const string mcc, const string mnc, const string routingInd, uint8_t protection_sch_id, uint8_t hnpki, const string msin) {}
void IdentityResponse::set5G_GUTI() {}
void IdentityResponse::setIMEI_IMEISV() {}
void IdentityResponse::set5G_S_TMSI() {}

int IdentityResponse::encode2buffer(uint8_t *buf, int len) {
	Logger::nas_mm().debug("encoding IdentityResponse message");
	int encoded_size = 0;
	if (!plain_header) {
		Logger::nas_mm().error("Mandontary IE missing Header");
		return 0;
	}
	if (!(plain_header->encode2buffer(buf, len))) return 0;
	encoded_size += 3;
	if (!ie_mobility_id) {
		Logger::nas_mm().warn("IE ie_mobility_id is not avaliable");
	}
	else {
		if (int size = ie_mobility_id->encode2buffer(buf + encoded_size, len - encoded_size)) {
			encoded_size += size;
		}
		else {
			Logger::nas_mm().error("encoding ie_mobility_id  error");
			return 0;
		}
	}
	Logger::nas_mm().debug("encoded IdentityResponse message len(%d)", encoded_size);
	return 1;
}

int IdentityResponse::decodefrombuffer(NasMmPlainHeader * header, uint8_t *buf, int len) {
	Logger::nas_mm().debug("decoding IdentityResponse message");
	int decoded_size = 3;
	plain_header = header;
	ie_mobility_id = new _5GSMobilityIdentity();
	decoded_size += ie_mobility_id->decodefrombuffer(buf + decoded_size, len - decoded_size, false);
	Logger::nas_mm().debug("decoded_size(%d)", decoded_size);
	Logger::nas_mm().debug("decoded IdentityResponse message len(%d)", decoded_size);


}







