package org.jboss.resteasy.test.resource;

import org.jboss.resteasy.core.AcceptParameterHttpPreprocessor;
import org.jboss.resteasy.core.interception.PreMatchContainerRequestContext;
import org.jboss.resteasy.mock.MockHttpRequest;
import org.jboss.resteasy.spi.HttpRequest;
import org.junit.Assert;
import org.junit.Test;

import javax.ws.rs.core.MediaType;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.List;


/**
 * @tpSubChapter Resource tests
 * @tpChapter Unit tests
 * @tpTestCaseDetails Tests for content negotiation through a query parameter, instead of the Accept Header.
 * This is used when context-param resteasy.media.type.param.mapping is enabled in web.xml.
 * @tpSince RESTEasy 3.0.16
 */
public class AcceptParameterHttpPreprocessorTest {

   /**
    * @tpTestDetails Basic query parameter with xml type
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void simple() throws Exception {

      String acceptParamName = "accept";
      AcceptParameterHttpPreprocessor processor = new AcceptParameterHttpPreprocessor(acceptParamName);

      String type = MediaType.TEXT_XML;
      HttpRequest request = MockHttpRequest.get("foo?" + acceptParamName + "=" + type);

      MediaType mediaType = MediaType.valueOf(type);

      PreMatchContainerRequestContext context = new PreMatchContainerRequestContext(request, null, null);
      processor.filter(context);

      List<MediaType> list = request.getHttpHeaders().getAcceptableMediaTypes();

      Assert.assertEquals("Incorrect acceptable list size", 1, list.size());
      Assert.assertEquals("Incorrect media type extracted", mediaType, list.get(0));
   }

   /**
    * @tpTestDetails Query parameter with multiple types
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void aLittleMoreComplicated() throws Exception {

      String acceptParamName = "bar";
      AcceptParameterHttpPreprocessor processor = new AcceptParameterHttpPreprocessor(acceptParamName);

      List<MediaType> expected = Arrays.asList(MediaType.TEXT_XML_TYPE, MediaType.TEXT_PLAIN_TYPE, MediaType.TEXT_HTML_TYPE, MediaType.APPLICATION_XHTML_XML_TYPE);

      MockHttpRequest request = MockHttpRequest.get("foo?" + acceptParamName + "=" + expected.get(0) + "," + expected.get(1));
      PreMatchContainerRequestContext context = new PreMatchContainerRequestContext(request, null, null);

      request.accept(expected.get(2));
      request.accept(expected.get(3));

      processor.filter(context);

      List<MediaType> actual = request.getHttpHeaders().getAcceptableMediaTypes();

      for (MediaType expect : expected) {
            Assert.assertTrue(actual.contains(expect));
      }

   }

   /**
    * @tpTestDetails Request without query parameter
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void withoutParam() throws Exception {

      String acceptParamName = "baz";
      AcceptParameterHttpPreprocessor processor = new AcceptParameterHttpPreprocessor(acceptParamName);

      List<MediaType> expected = Arrays.asList(MediaType.TEXT_PLAIN_TYPE, MediaType.TEXT_HTML_TYPE);

      MockHttpRequest request = MockHttpRequest.get("foo");
      PreMatchContainerRequestContext context = new PreMatchContainerRequestContext(request, null, null);
      request.accept(expected.get(0));
      request.accept(expected.get(1));

      processor.filter(context);

      List<MediaType> actual = request.getHttpHeaders().getAcceptableMediaTypes();

      for (MediaType expect : expected) {
            Assert.assertTrue(actual.contains(expect));
      }
   }

   /**
    * @tpTestDetails Request with complex query parameter
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void complex() throws Exception {

      String acceptParamName = "bar";
      AcceptParameterHttpPreprocessor processor = new AcceptParameterHttpPreprocessor(acceptParamName);

      List<MediaType> expected = Arrays.asList(
            MediaType.valueOf("application/xhtml+xml"),
            MediaType.valueOf("text/html"),
            MediaType.valueOf("application/xml;q=0.9"),
            MediaType.valueOf("*/*;q=0.8")
      );

      String param1 = URLEncoder.encode("application/xml;q=0.9,application/xhtml+xml,*/*;q=0.8", StandardCharsets.UTF_8.name());
      String param2 = URLEncoder.encode("text/html", StandardCharsets.UTF_8.name());
      HttpRequest request = MockHttpRequest.get(
            "foo?" + acceptParamName + "=" + param1 + "&" +
                        acceptParamName + "=" + param2);

      PreMatchContainerRequestContext context = new PreMatchContainerRequestContext(request, null, null);
      processor.filter(context);

      List<MediaType> actual = request.getHttpHeaders().getAcceptableMediaTypes();

      Assert.assertEquals("Incorrect acceptable media type extracted", expected, actual);
   }
}
