package org.jboss.resteasy.test.request;


import org.jboss.resteasy.core.request.AcceptHeaders;
import org.jboss.resteasy.core.request.QualityValue;
import org.jboss.resteasy.spi.BadRequestException;
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(" "));
    }

}