package org.jboss.resteasy.test.request;

import javax.ws.rs.BadRequestException;

import org.jboss.resteasy.core.request.AcceptHeaders;
import org.jboss.resteasy.core.request.QualityValue;
import org.junit.Test;

import javax.ws.rs.core.MediaType;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.fail;



/**
 * @tpSubChapter Requests
 * @tpChapter Unit tests
 * @tpTestCaseDetails Test for AcceptHeaders and QualityValue classes, media type.
 * @tpSince RESTEasy 3.0.16
 */
public class MediaTypeQualityValueTest {

   private static void assertList(String header, MediaType[] fields, QualityValue[] qualities) {
      Map<MediaType, QualityValue> map = AcceptHeaders.getMediaTypeQualityValues(header);
      List<MediaType> expectedKeys = Arrays.asList(fields);
      List<QualityValue> expectedValues = Arrays.asList(qualities);
      assertEquals("Wrong keys in map", expectedKeys, new ArrayList<MediaType>(map.keySet()));
      assertEquals("Wrong values in map", expectedValues, new ArrayList<QualityValue>(map.values()));
   }

   /**
    * @tpTestDetails Test for simple values.
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void simple() {
      String header = "audio/*; q=0.2, audio/basic";
      MediaType[] fields = {
            MediaType.valueOf("audio/*"),
            MediaType.valueOf("audio/basic")
      };
      QualityValue[] qualities = {
            QualityValue.valueOf("0.2"),
            QualityValue.DEFAULT
      };
      assertList(header, fields, qualities);
   }

   /**
    * @tpTestDetails Test for special parameters.
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void parameters() {
      String header = "text/html;level=\"1\", text/html;level=2;q=0.4";
      MediaType[] fields = {
            MediaType.valueOf("text/html;level=1"),
            MediaType.valueOf("text/html;level=2")
      };
      QualityValue[] qualities = {
            QualityValue.DEFAULT,
            QualityValue.valueOf("0.4")
      };
      assertList(header, fields, qualities);
   }

   /**
    * @tpTestDetails Test for unsupported extension.
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void unsupportedExtension() {
      String header = "plain/text; a=b; q=0.2; extension=unsupported";
      MediaType[] fields = {MediaType.valueOf("plain/text;a=b")};
      QualityValue[] qualities = {QualityValue.NOT_ACCEPTABLE};
      assertList(header, fields, qualities);
   }

   /**
    * @tpTestDetails Test for bad requests.
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void badRequests() {
      String[] badHeaders = {
            "a",
            "a,b",
            "a/b,",
            "a/b;",
            "a/b;p",
            "a/b;p=x,",
            "a/b;p=\"x\"y",
            "a/b;p=\"x\"y,c/d",
            "a/b;p=\"x,c/d",
            "a/b;p=\"x\\\",c/d"
      };
      for (String header : badHeaders) {
         try {
            AcceptHeaders.getMediaTypeQualityValues(header);
            fail(header);
         } catch (BadRequestException e) {
         }
      }
   }

   /**
    * @tpTestDetails Test empty quality values.
    * @tpSince RESTEasy 3.0.16
    */
   @Test
   public void empty() {
      final String ERROR_MSG = "Local quality values should not be null";
      assertNull(ERROR_MSG, AcceptHeaders.getMediaTypeQualityValues(null));
      assertNull(ERROR_MSG, AcceptHeaders.getMediaTypeQualityValues(""));
      assertNull(ERROR_MSG, AcceptHeaders.getMediaTypeQualityValues(" "));
   }

}
