//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package s3select

import (
	"bufio"
	"bytes"
	"compress/bzip2"
	"encoding/xml"
	"errors"
	"fmt"
	"io"
	"net/http"
	"strings"
	"sync"

	"github.com/klauspost/compress/s2"
	"github.com/klauspost/compress/zstd"
	gzip "github.com/klauspost/pgzip"

	"github.com/klauspost/compress/zstd"
	gzip "github.com/klauspost/pgzip"
	"github.com/pierrec/lz4/v4"
)

type countUpReader struct {
	reader    io.Reader
	bytesRead int64
}

// Max bzip2 concurrency across calls. 50% of GOMAXPROCS.
var bz2Limiter = pbzip2.CreateConcurrencyPool((runtime.GOMAXPROCS(0) + 1) / 2)

func (r *countUpReader) Read(p []byte) (n int, err error) {
	n, err = r.reader.Read(p)

	"sync"
	"time"

	"github.com/cosnicolaou/pbzip2"
	"github.com/klauspost/compress/s2"
	"github.com/klauspost/compress/zstd"
	gzip "github.com/klauspost/pgzip"
	"github.com/pierrec/lz4/v4"
)

// Max bzip2 concurrency across calls. 50% of GOMAXPROCS.
var bz2Limiter = pbzip2.CreateConcurrencyPool((runtime.GOMAXPROCS(0) + 1) / 2)

func detect(r *bufio.Reader) format {
	z, err := r.Peek(4)
	if err != nil {

Decompressing incompressible data has no significant performance impact.

Below is a list of common files and content-types which are typically not suitable for compression.

- Extensions

 | `gz`  | (GZIP)      |
 | `bz2` | (BZIP2)     |
 | `rar` | (WinRAR)    |
 | `zip` | (ZIP)       |
 | `7z`  | (7-Zip)     |
 | `xz`  | (LZMA)      |
 | `mp4` | (MP4)       |
 | `mkv` | (MKV media) |
 | `mov` | (MOV)       |

- Content-Types

  public static final MediaType ATOM_UTF_8 = createConstantUtf8(APPLICATION_TYPE, "atom+xml");
  public static final MediaType BZIP2 = createConstant(APPLICATION_TYPE, "x-bzip2");

  /**
   * Files in the <a href="https://www.dartlang.org/articles/embedding-in-html/">dart</a>
   * programming language.
   *
   * @since 19.0
   */

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package tar

import (
	"bytes"
	"compress/bzip2"
	"errors"
	"fmt"
	"hash/crc32"
	"io"
	"maps"
	"math"
	"os"
	"path"
	"reflect"
	"slices"
	"strconv"
	"strings"
	"testing"
	"time"
)

func TestReader(t *testing.T) {
	vectors := []struct {

application/x-ibooks+zip=ibooks\n\
text/plain=txt\n\
application/rtf=rtf\n\
application/vnd.ms-htmlhelp=chm\n\
application/zip=zip\n\
application/x-7z-comressed=7z\n\
application/x-bzip=bz\n\
application/x-bzip2=bz2\n\
application/x-tar=tar\n\
application/x-rar-compressed=rar\n\
video/3gp=3gp\n\
video/3g2=3g2\n\
video/x-msvideo=avi\n\
video/x-flv=flv\n\
video/mpeg=mpeg\n\
video/mp4=mp4\n\
video/ogv=ogv\n\

labels.facet_filetype_rtf=リッチテキスト
labels.facet_filetype_chm=Compiled HTML Help
labels.facet_filetype_zip=ZIPアーカイブ
labels.facet_filetype_7z=7zアーカイブ
labels.facet_filetype_bz=BZIPアーカイブ
labels.facet_filetype_bz2=BZIP2アーカイブ
labels.facet_filetype_tar=TARアーカイブ
labels.facet_filetype_rar=RARアーカイブ
labels.facet_filetype_3gp=3gpビデオ
labels.facet_filetype_3g2=3g2ビデオ
labels.facet_filetype_avi=AVIビデオ
labels.facet_filetype_flv=FLVビデオ

     * application/rtf=rtf<br>
     * application/vnd.ms-htmlhelp=chm<br>
     * application/zip=zip<br>
     * application/x-7z-comressed=7z<br>
     * application/x-bzip=bz<br>
     * application/x-bzip2=bz2<br>
     * application/x-tar=tar<br>
     * application/x-rar-compressed=rar<br>
     * video/3gp=3gp<br>
     * video/3g2=3g2<br>
     * video/x-msvideo=avi<br>
     * video/x-flv=flv<br>