content: /*
   * Copyright 2010 Proofpoint, Inc.
   *
   * Licensed 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 io.airlift.jaxrs.testing;
  
  import com.google.common.base.Joiner;
  import com.google.common.base.Splitter;
  import com.google.common.collect.ArrayListMultimap;
  import com.google.common.collect.ImmutableList;
  import com.google.common.collect.ImmutableList.Builder;
  import jakarta.ws.rs.core.MultivaluedMap;
  import jakarta.ws.rs.core.PathSegment;
  import jakarta.ws.rs.core.UriBuilder;
  import jakarta.ws.rs.core.UriInfo;
  
  import java.io.UnsupportedEncodingException;
  import java.net.URI;
  import java.net.URLDecoder;
  import java.util.List;
  
  public class MockUriInfo
          implements UriInfo
  {
      private static final Splitter PATH_SPLITTER = Splitter.on('/');
      private static final Splitter QUERY_STRING_SPLITTER = Splitter.on('&').trimResults().omitEmptyStrings();
      private static final Splitter QUERY_PARAM_SPLITTER = Splitter.on('=');
      private static final Joiner QUERY_PARAM_VALUE_JOINER = Joiner.on("");
  
      private final URI requestUri;
      private final URI baseUri;
  
      public static UriInfo from(String requestUri)
      {
          return new MockUriInfo(URI.create(requestUri));
      }
  
      public static UriInfo from(URI requestUri)
      {
          return new MockUriInfo(requestUri);
      }
  
      public MockUriInfo(URI requestUri)
      {
          this(requestUri, requestUri.resolve("/"));
      }
  
      public MockUriInfo(URI requestUri, URI baseUri)
      {
          this.requestUri = requestUri;
          this.baseUri = baseUri;
      }
  
      @Override
      public URI getBaseUri()
      {
          return baseUri;
      }
  
      @Override
      public UriBuilder getBaseUriBuilder()
      {
          return UriBuilder.fromUri(getBaseUri());
      }
  
      @Override
      public URI getRequestUri()
      {
          return requestUri;
      }
  
      @Override
      public UriBuilder getRequestUriBuilder()
      {
          return UriBuilder.fromUri(getRequestUri());
      }
  
      @Override
      public URI getAbsolutePath()
      {
          return UriBuilder.fromUri(requestUri).replaceQuery("").fragment("").build();
      }
  
      @Override
      public UriBuilder getAbsolutePathBuilder()
      {
          return UriBuilder.fromUri(getAbsolutePath());
      }
  
      @Override
      public String getPath()
      {
          return getPath(true);
      }
  
      @Override
      public String getPath(boolean decode)
      {
          // todo decode is ignored
          return getRequestUri().getRawPath().substring(getBaseUri().getRawPath().length());
      }
  
      @Override
      public List<PathSegment> getPathSegments()
      {
          return getPathSegments(true);
      }
  
      @Override
      public List<PathSegment> getPathSegments(boolean decode)
      {
          Builder<PathSegment> builder = ImmutableList.builder();
          for (String path : PATH_SPLITTER.split(getPath(decode))) {
              builder.add(new ImmutablePathSegment(path));
          }
          return builder.build();
      }
  
      @Override
      public MultivaluedMap<String, String> getQueryParameters()
      {
          return getQueryParameters(true);
      }
  
      @Override
      public MultivaluedMap<String, String> getQueryParameters(boolean decode)
      {
          return decodeQuery(getRequestUri().getRawQuery(), decode);
      }
  
      @Override
      public URI resolve(URI uri)
      {
          return baseUri.resolve(uri);
      }
  
      @Override
      public URI relativize(URI uri)
      {
          if (!uri.isAbsolute()) {
              uri = resolve(uri);
          }
          return baseUri.resolve(uri);
      }
  
      public static MultivaluedMap<String, String> decodeQuery(String query, boolean decode)
      {
          if (query == null) {
              return new GuavaMultivaluedMap<>();
          }
  
          ArrayListMultimap<String, String> map = ArrayListMultimap.create();
          for (String param : QUERY_STRING_SPLITTER.split(query)) {
              List<String> pair = ImmutableList.copyOf(QUERY_PARAM_SPLITTER.split(param));
              if (pair.isEmpty()) {
                  continue;
              }
  
              String key = urlDecode(pair.get(0));
              String value = null;
              if (pair.size() != 1) {
                  value = QUERY_PARAM_VALUE_JOINER.join(pair.subList(1, pair.size()));
                  if (decode) {
                      value = urlDecode(value);
                  }
              }
              map.put(key, value);
          }
  
          return new GuavaMultivaluedMap<>(map);
      }
  
      private static String urlDecode(String value)
      {
          try {
              return URLDecoder.decode(value, "UTF-8");
          }
          catch (UnsupportedEncodingException e) {
              throw new IllegalArgumentException(e);
          }
      }
  
      @Override
      public MultivaluedMap<String, String> getPathParameters()
      {
          return getPathParameters(true);
      }
  
      @Override
      public MultivaluedMap<String, String> getPathParameters(boolean decode)
      {
          // this requires knowledge of @Path
          throw new UnsupportedOperationException();
      }
  
      @Override
      public List<String> getMatchedURIs()
      {
          return getMatchedURIs(true);
      }
  
      @Override
      public List<String> getMatchedURIs(boolean decode)
      {
          // this requires knowledge of @Path
          throw new UnsupportedOperationException();
      }
  
      @Override
      public List<Object> getMatchedResources()
      {
          // this requires knowledge of @Path
          throw new UnsupportedOperationException();
      }
  
      private static class ImmutablePathSegment
              implements PathSegment
      {
          private final String path;
  
          public ImmutablePathSegment(String path)
          {
              this.path = path;
          }
  
          @Override
          public String getPath()
          {
              return path;
          }
  
          @Override
          public MultivaluedMap<String, String> getMatrixParameters()
          {
              return new GuavaMultivaluedMap<>();
          }
      }
  }
  