/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  package org.apache.commons.compress.compressors.xz;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.IOException;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.Files;
  import java.nio.file.Path;
  
  import org.apache.commons.io.IOUtils;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.io.TempDir;
  import org.junitpioneer.jupiter.cartesian.CartesianTest;
  import org.junitpioneer.jupiter.cartesian.CartesianTest.Values;
  import org.tukaani.xz.LZMA2Options;
  import org.tukaani.xz.XZOutputStream;
  
  /**
   * Tests for class {@link XZCompressorOutputStream} and {@link XZCompressorInputStream}.
   *
   * @see XZCompressorOutputStream
   * @see XZCompressorInputStream
   */
  class XZCompressorRoundtripTest {
  
      @TempDir
      static Path tempDir;
  
      private void roundtrip(final Path outPath, final LZMA2Options options, final boolean decompressConcatenated, final int memoryLimitKiB) throws IOException {
          final String data = "Hello World!";
          // @formatter:off
          try (XZCompressorOutputStream out = XZCompressorOutputStream.builder()
                  .setPath(outPath)
                  .setLzma2Options(options)
                  .get()) {
              out.writeUtf8(data);
          }
          try (XZCompressorInputStream out = XZCompressorInputStream.builder()
                  .setPath(outPath)
                  .setDecompressConcatenated(decompressConcatenated)
                  .setMemoryLimitKiB(memoryLimitKiB)
                  .get()) {
              assertEquals(data, IOUtils.toString(out, StandardCharsets.UTF_8));
          }
          // @formatter:on
          try (XZCompressorInputStream out = new XZCompressorInputStream(Files.newInputStream(outPath))) {
              assertEquals(data, IOUtils.toString(out, StandardCharsets.UTF_8));
          }
          // deprecated
          try (XZCompressorOutputStream out = new XZCompressorOutputStream(new XZOutputStream(Files.newOutputStream(outPath), options))) {
              out.writeUtf8(data);
          }
      }
  
      @CartesianTest
      void testBuilderOptions(@Values(ints = { LZMA2Options.PRESET_MAX, LZMA2Options.PRESET_MIN, LZMA2Options.PRESET_DEFAULT }) final int preset,
              @Values(booleans = { false, true }) final boolean decompressConcatenated, @Values(ints = { -1, 100_000 }) final int memoryLimitKiB)
              throws IOException {
          roundtrip(tempDir.resolve("out.xz"), new LZMA2Options(preset), false, -1);
      }
  
      @Test
      void testBuilderOptionsAll() throws IOException {
          final int dictSize = LZMA2Options.DICT_SIZE_MIN;
          final int lc = LZMA2Options.LC_LP_MAX - 4;
          final int lp = LZMA2Options.LC_LP_MAX - 4;
          final int pb = LZMA2Options.PB_MAX;
          final int mode = LZMA2Options.MODE_NORMAL;
          final int niceLen = LZMA2Options.NICE_LEN_MIN;
          final int mf = LZMA2Options.MF_BT4;
          final int depthLimit = 50;
          roundtrip(tempDir.resolve("out.xz"), new LZMA2Options(dictSize, lc, lp, pb, mode, niceLen, mf, depthLimit), false, -1);
      }
  
      @CartesianTest
      void testBuilderOptionsDefgault(@Values(booleans = { false, true }) final boolean decompressConcatenated,
              @Values(ints = { -1, 100_000 }) final int memoryLimitKiB) throws IOException {
          roundtrip(tempDir.resolve("out.xz"), new LZMA2Options(), decompressConcatenated, memoryLimitKiB);
      }
  
     @Test
     void testBuilderPath() throws IOException {
         // This test does not use LZMA2Options
         final String data = "Hello World!";
         final Path outPath = tempDir.resolve("out.xz");
         try (XZCompressorOutputStream out = XZCompressorOutputStream.builder().setPath(outPath).get()) {
             out.writeUtf8(data);
         }
         // deprecated
         try (XZCompressorInputStream out = new XZCompressorInputStream(Files.newInputStream(outPath), false)) {
             assertEquals(data, IOUtils.toString(out, StandardCharsets.UTF_8));
         }
         // deprecated
         try (XZCompressorInputStream out = new XZCompressorInputStream(Files.newInputStream(outPath), false, -1)) {
             assertEquals(data, IOUtils.toString(out, StandardCharsets.UTF_8));
         }
     }
 }