/*
 * 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.apache.tuscany.nosqldatastore.couchdb;

import junit.framework.Assert;
import org.apache.tuscany.nosqldatastore.exception.EntryNotFoundException;
import org.junit.Before;
import org.junit.Test;

import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

import static junit.framework.Assert.*;

public class CouchDBServiceTestCase {

    private URL url;
    private URLConnection connection;

    @Before
    public void testInsertEntry() throws IOException {

        url = new URL("http://localhost:8085/DatastoreService/addEntry?database=twitapp&group=twits&key=twitName1&value=twit1");
        connection = url.openConnection();

        url = new URL("http://localhost:8085/DatastoreService/addEntry?database=twitapp&group=twits&key=twitName1&value=twit1");
        connection = url.openConnection();

        url = new URL("http://localhost:8085/DatastoreService/addEntry?database=twitapp&group=twits&key=twitName3&value=twit3");
        connection = url.openConnection();

        url = new URL("http://localhost:8085/DatastoreService/getEntry?database=twitapp&group=twits&key=twitName1");
        Assert.assertEquals("twit1", read(url.openStream()));

        url = new URL("http://localhost:8085/DatastoreService/getEntry?database=twitapp&group=twits&key=twitName2");
        Assert.assertEquals("twit2", read(url.openStream()));

        url = new URL("http://localhost:8085/DatastoreService/getEntry?database=twitapp&group=twits&key=twitName3");
        Assert.assertEquals("twit3", read(url.openStream()));

    }

    @Test
    public void testUpdateEntry() throws IOException{
        url = new URL("http://localhost:8085/DatastoreService/updateEntry?database=twitapp&group=twits&key=twitName3&value=twit4");
        connection = url.openConnection();

        url = new URL("http://localhost:8085/DatastoreService/getEntry?database=twitapp&group=twits&key=twitName3");
        Assert.assertEquals("twit4", read(url.openStream()));
    }

    @Test(expected = EntryNotFoundException.class)
    public void testDeleteEntry() throws IOException{
        url = new URL("http://localhost:8085/DatastoreService/deleteEntry?database=twitapp&group=twits&key=twitName3");
        connection = url.openConnection();

        url = new URL("http://localhost:8085/DatastoreService/getEntry?database=twitapp&group=twits&key=twitName3");
        Assert.assertNotSame("twit4", read(url.openStream()));
    }

    @Test
    public void testDeleteGroup() throws IOException {
        url = new URL("http://localhost:8085/DatastoreService/deleteGroup?database=twitapp&group=twits");
        connection = url.openConnection();
    }

    @Test
    public void testDeleteDatabase() throws IOException{
        url = new URL("http://localhost:8085/DatastoreService/deleteDatabase?database=twitapp");
        connection = url.openConnection();
    }


    private static String read(InputStream is) throws IOException {
        BufferedReader reader = null;
        try {
            reader = new BufferedReader(new InputStreamReader(is));
            StringBuffer sb = new StringBuffer();
            String str;
            while ((str = reader.readLine()) != null) {
                sb.append(str);
            }
            return sb.toString();
        } finally {
            if (reader != null) {
                reader.close();
            }
        }
    }

}