/*
    * 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
    *
   *   http://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.eclipse.aether.util;
  
  import java.io.IOException;
  import java.nio.file.FileSystems;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TestName;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.equalTo;
  import static org.hamcrest.Matchers.startsWith;
  import static org.junit.Assume.assumeTrue;
  
  public class DirectoryUtilsTest {
      @Rule
      public TestName testName = new TestName();
  
      @Test
      public void expectedCasesRelative() throws IOException {
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories(Paths.get(System.getProperty("java.io.tmpdir")));
  
          Path tmpDir = Files.createTempDirectory(testName.getMethodName());
          Path result;
  
          result = DirectoryUtils.resolveDirectory("foo", tmpDir, false);
          assertThat(result, equalTo(tmpDir.resolve("foo")));
  
          result = DirectoryUtils.resolveDirectory("foo/bar", tmpDir, false);
          assertThat(result, equalTo(tmpDir.resolve("foo/bar")));
  
          result = DirectoryUtils.resolveDirectory("foo/./bar/..", tmpDir, false);
          assertThat(result, equalTo(tmpDir.resolve("foo")));
      }
  
      @Test
      public void expectedCasesAbsolute() throws IOException {
          // TODO: this test is skipped on Windows, as it is not clear which drive letter will `new File("/foo")`
          // path get. According to Windows (and  assuming Java Path does separator change OK), "\foo" file should
          // get resolved to CWD drive + "\foo" path, but seems Java 17 is different from 11 and 8 in this respect.
          // This below WORKS on win + Java8 abd win + Java11 but FAILS on win + Java17
          assumeTrue(
                  !"WindowsFileSystem".equals(FileSystems.getDefault().getClass().getSimpleName()));
  
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories(Paths.get(System.getProperty("java.io.tmpdir")));
  
          Path tmpDir = Files.createTempDirectory(testName.getMethodName());
          Path result;
  
          result = DirectoryUtils.resolveDirectory("/foo", tmpDir, false);
          assertThat(result, equalTo(FileSystems.getDefault().getPath("/foo").toAbsolutePath()));
  
          result = DirectoryUtils.resolveDirectory("/foo/bar", tmpDir, false);
          assertThat(result, equalTo(FileSystems.getDefault().getPath("/foo/bar").toAbsolutePath()));
  
          result = DirectoryUtils.resolveDirectory("/foo/./bar/..", tmpDir, false);
          assertThat(result, equalTo(FileSystems.getDefault().getPath("/foo").toAbsolutePath()));
      }
  
      @Test
      public void existsButIsADirectory() throws IOException {
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories(Paths.get(System.getProperty("java.io.tmpdir")));
  
          Path tmpDir = Files.createTempDirectory(testName.getMethodName());
          Files.createDirectories(tmpDir.resolve("foo"));
          Path result = DirectoryUtils.resolveDirectory("foo", tmpDir, false);
          assertThat(result, equalTo(tmpDir.resolve("foo")));
      }
  
      @Test
      public void existsButNotADirectory() throws IOException {
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories(Paths.get(System.getProperty("java.io.tmpdir")));
  
          Path tmpDir = Files.createTempDirectory(testName.getMethodName());
         Files.createFile(tmpDir.resolve("foo"));
         try {
             DirectoryUtils.resolveDirectory("foo", tmpDir, false);
         } catch (IOException e) {
             assertThat(e.getMessage(), startsWith("Path exists, but is not a directory:"));
         }
     }
 
     @Test
     public void notExistsAndIsCreated() throws IOException {
         // hack for surefire: sets the property but directory may not exist
         Files.createDirectories(Paths.get(System.getProperty("java.io.tmpdir")));
 
         Path tmpDir = Files.createTempDirectory(testName.getMethodName());
         Files.createDirectories(tmpDir.resolve("foo"));
         Path result = DirectoryUtils.resolveDirectory("foo", tmpDir, true);
         assertThat(result, equalTo(tmpDir.resolve("foo")));
         assertThat(Files.isDirectory(tmpDir.resolve("foo")), equalTo(true));
     }
 }