* limitations under the License.
 */
package okhttp3.zstd

import com.squareup.zstd.okio.zstdDecompress
import okhttp3.CompressionInterceptor
import okio.BufferedSource
import okio.Source

/**
 * Support for Zstandard encoding. Use via the [CompressionInterceptor].
 */
object Zstd : CompressionInterceptor.DecompressionAlgorithm {
  override val encoding: String get() = "zstd"

public final class okhttp3/zstd/Zstd : okhttp3/CompressionInterceptor$DecompressionAlgorithm {
	public static final field INSTANCE Lokhttp3/zstd/Zstd;
	public fun decompress (Lokio/BufferedSource;)Lokio/Source;
	public fun getEncoding ()Ljava/lang/String;

import org.junit.jupiter.api.Test

class ZstdInterceptorTest {
  val zstdInterceptor = CompressionInterceptor(Zstd, Gzip)

  @Test
  fun testDecompressZstd() {
    val s = "hello zstd world".encodeUtf8().zstdCompress()

    val response =
      response("https://example.com/", s) {
        header("Content-Encoding", "zstd")
      }

    val decompressed = zstdInterceptor.decompress(response)

)

var magicHeaders = []struct {
	header []byte
	f      format
}{
	{
		header: []byte{0x1f, 0x8b, 8},
		f:      formatGzip,
	},
	{
		// Zstd default header.
		header: []byte{0x28, 0xb5, 0x2f, 0xfd},
		f:      formatZstd,
	},
	{
		// Zstd skippable frame header.
		header: []byte{0x2a, 0x4d, 0x18},
		f:      formatZstd,
	},
	{
		// LZ4
		header: []byte{0x4, 0x22, 0x4d, 0x18},
		f:      formatLZ4,

OkHttp Zstandard (zstd) Integration
===================================

This module enables [Zstandard (zstd)][1] response compression in addition to Gzip, as long as
the `Accept-Encoding` header is not otherwise set. Web servers must be configured to return zstd
responses.

Note that zstd is not used for sending requests.

```java
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(ZstdInterceptor.INSTANCE)
  .build();
```

 * limitations under the License.
 */
package okhttp3.zstd

import okhttp3.CompressionInterceptor
import okhttp3.OkHttpClient
import okhttp3.Request

fun main() {
  val client =
    OkHttpClient
      .Builder()
      .addInterceptor(CompressionInterceptor(Zstd))
      .build()

  sendRequest("https://developers.facebook.com/docs/", client)

	// Add version and compress.
	_, err := dst.Write([]byte{dataUsageCacheVerCurrent})
	if err != nil {
		return err
	}
	enc, err := zstd.NewWriter(dst,
		zstd.WithEncoderLevel(zstd.SpeedFastest),
		zstd.WithWindowSize(1<<20),
		zstd.WithEncoderConcurrency(2))
	if err != nil {
		return err
	}
	mEnc := msgp.NewWriter(enc)
	err = d.EncodeMsg(mEnc)
	if err != nil {
		return err

 * limitations under the License.
 */
package okhttp3.zstd;

import okhttp3.CompressionInterceptor;
import okhttp3.Gzip;
import okhttp3.brotli.Brotli;
import org.junit.jupiter.api.Test;

class ZstdInterceptorJavaTest {
  @Test
  public void testConstructor() {
    CompressionInterceptor interceptor = new CompressionInterceptor(
      Zstd.INSTANCE,
      Gzip.INSTANCE,
      Brotli.INSTANCE
    );
  }

			}
			// Test these compressor errors
			errs := []error{
				gzip.ErrHeader, gzip.ErrChecksum,
				s2.ErrCorrupt, s2.ErrUnsupported, s2.ErrCRC,
				zstd.ErrBlockTooSmall, zstd.ErrMagicMismatch, zstd.ErrWindowSizeExceeded, zstd.ErrUnknownDictionary, zstd.ErrWindowSizeTooSmall,
				lz4.ErrInvalidFrame, lz4.ErrInvalidBlockChecksum, lz4.ErrInvalidFrameChecksum, lz4.ErrInvalidFrameChecksum,

 *  New: The `okhttp-zstd` module negotiates [Zstandard (zstd)][zstd] compression with servers that
    support it. It integrates a new (unstable) [ZSTD-KMP] library, also from Square. Enable it like
    this:

    ```kotlin
    val client = OkHttpClient.Builder()
      .addInterceptor(CompressionInterceptor(Zstd, Gzip))
      .build()
    ```