// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package bandwidth

import (
	"sync"
	"sync/atomic"
	"time"
)

const (
	// betaBucket is the weight used to calculate exponential moving average
	betaBucket = 0.1 // Number of averages considered = 1/(1-betaObject)
)

// bucketMeasurement captures the bandwidth details for one bucket
type bucketMeasurement struct {

    /**
     * Calculates a MAC using the ARCFOUR-HMAC-MD5 algorithm.
     * This method implements the Microsoft variant of the Kerberos ARCFOUR-HMAC-MD5 checksum.
     *
     * @param keyusage the Kerberos key usage number for this operation
     * @param key the encryption key to use for MAC calculation
     * @param data the data to calculate the MAC for
     * @return the calculated MAC bytes

    /**
     * Calculate average send latency in microseconds
     *
     * @return average send latency
     */
    public double getAverageSendLatencyMicros() {
        long sends = rdmaSends.get();
        if (sends == 0) {
            return 0.0;
        }
        return totalSendTime.get() / (double) sends / 1000.0; // Convert to microseconds
    }

    /**

	line2InColor := fmt.Sprintf(msgLine2Fmt, color.CyanBold(updateString))

	// calculate the rectangular box size.
	maxContentWidth := max(line1Length, line2Length)

	// termWidth is set to a default one to use when we are
	// not able to calculate terminal width via OS syscalls
	termWidth := 25
	if width, err := pb.GetTerminalWidth(); err == nil {
		termWidth = width
	}

        @Test
        @DisplayName("Should calculate size for null ciphers")
        void testSizeWithNullCiphers() {
            EncryptionNegotiateContext context = new EncryptionNegotiateContext(mockConfig, null);

            assertEquals(4, context.size());
        }

        @Test
        @DisplayName("Should calculate size for empty ciphers")
        void testSizeWithEmptyCiphers() {

        for (int i = keyLen; i < 64; i++) {
            ipad[i] = 0x36;
            opad[i] = 0x5c;
        }

        // Calculate inner hash
        md5.reset();
        md5.update(ipad);
        md5.update(data);
        byte[] innerHash = md5.digest();

        // Calculate outer hash
        md5.reset();
        md5.update(opad);
        return md5.digest(innerHash);
    }

        for (int i = keyLen; i < 64; i++) {
            ipad[i] = 0x36;
            opad[i] = 0x5c;
        }

        // Calculate inner hash
        md5.reset();
        md5.update(ipad);
        md5.update(data);
        byte[] innerHash = md5.digest();

        // Calculate outer hash
        md5.reset();
        md5.update(opad);
        byte[] expectedResult = md5.digest(innerHash);

        }
    }

    @Nested
    @DisplayName("Size Calculation Tests")
    class SizeCalculationTests {

        @Test
        @DisplayName("Should calculate size correctly with single lock")
        void testSizeWithSingleLock() {
            Smb2Lock[] singleLock = new Smb2Lock[] { new Smb2Lock(0L, 100L, Smb2Lock.SMB2_LOCKFLAG_EXCLUSIVE_LOCK) };

    }

    /**
     * Calculates the boost value for the given document data using the boost expression.
     * The method evaluates the boost expression and converts the result to a float value.
     * Supports Integer, Long, Float, Double, and String representations of numbers.
     *
     * @param map the document data as a map of field names to values
     * @return the calculated boost value as a float, or 0.0f if evaluation fails

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	return newSignature
}

// getTrailerChunkSignature - get trailer chunk signature.
func (cr *s3ChunkedReader) getTrailerChunkSignature() string {
	hashedChunk := hex.EncodeToString(cr.chunkSHA256Writer.Sum(nil))

	// Calculate string to sign.
	alg := signV4ChunkedAlgorithmTrailer + "\n"