/*******************************************************************************
 * ============LICENSE_START==================================================
 * * org.onap.dmaap
 * * ===========================================================================
 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * * ===========================================================================
 * * 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.
 * * ============LICENSE_END====================================================
 * *
 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * *
 ******************************************************************************/

package datarouter.provisioning;

import static org.junit.Assert.fail;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONTokener;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import com.att.research.datarouter.provisioning.FeedServlet;

public class testDRFeedsGet extends testBase {
	private JSONArray returnedlist;

	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
	}

	@AfterClass
	public static void tearDownAfterClass() throws Exception {
	}

	@Before
	public void setUp() throws Exception {
		super.setUp();
		getDBstate();
	}

	@Test
	public void testNormal() {
		testCommon(HttpServletResponse.SC_OK);
		int expect = 0;
		JSONArray ja = db_state.getJSONArray("feeds");
		for (int i = 0; i < ja.length(); i++) {
			JSONObject jo = ja.getJSONObject(i);
			if (!jo.getBoolean("deleted"))
				expect++;
		}
		if (returnedlist.length() != expect)
			fail("bad length, got "+ returnedlist.length() + " expect " + expect);
	}
	@Test
	public void testNormalGoodName() {
		JSONArray ja = db_state.getJSONArray("feeds");
		JSONObject feed0 = ja.getJSONObject(0);
		String name = feed0.getString("name");
		String query = "?name=" + name;
		int expect = 0;
		for (int n = 0; n < ja.length(); n++) {
			JSONObject jo = ja.getJSONObject(n);
			if (!jo.getBoolean("deleted") && jo.getString("name").equals(name))
				expect++;
		}
		testCommon(HttpServletResponse.SC_OK, query, FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
		if (returnedlist.length() != expect)
			fail("bad length, got "+ returnedlist.length() + " expect "+expect);
	}
	@Test
	public void testNormalBadName() {
		String query = "?name=ZZTOP123456";
		testCommon(HttpServletResponse.SC_OK, query, FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
		if (returnedlist.length() != 0)
			fail("bad length, got "+ returnedlist.length() + " expect 0");
	}
	@Test
	public void testNormalBadPath() {
		String query = "flarg/?publisher=JUnit";
		testCommon(HttpServletResponse.SC_NOT_FOUND, query, "text/html;charset=ISO-8859-1", "JUnit");
	}
	@Test
	public void testNormalGoodPublisher() {
		JSONArray ja = db_state.getJSONArray("feeds");
		JSONObject feed0 = ja.getJSONObject(0);
		String query = "?publisher=" + feed0.getString("publisher");
		testCommon(HttpServletResponse.SC_OK, query, FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
		int expect = 0;
		for (int i = 0; i < ja.length(); i++) {
			JSONObject jo = ja.getJSONObject(i);
			if (jo.getString("publisher").equals(feed0.getString("publisher")) && !jo.getBoolean("deleted"))
				expect++;
		}
		if (returnedlist.length() != expect)
			fail("bad length, got "+returnedlist.length()+" expected "+expect);
	}
	@Test
	public void testNormalBadPublisher() {
		String query = "?publisher=ZZTOP123456";
		testCommon(HttpServletResponse.SC_OK, query, FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
		if (returnedlist.length() != 0)
			fail("bad length");
	}
	@Test
	public void testNormalGoodSubscriber() {
		JSONArray ja = db_state.getJSONArray("subscriptions");
		if (ja.length() > 0) {
			JSONObject sub0 = ja.getJSONObject(0);
			String query = "?subscriber=" + sub0.getString("subscriber");
			testCommon(HttpServletResponse.SC_OK, query, FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
// aarg! - this is complicated!
//		int expect = 0;
//		for (int i = 0; i < ja.length(); i++) {
//			JSONObject jo = ja.getJSONObject(i);
//			if (jo.getString("subscriber").equals(sub0.getString("subscriber")))
//				expect++;
//		}
//		if (returnedlist.length() != 1)
//			fail("bad length "+returnedlist.toString());
		} else {
			// There are no subscriptions yet, so use a made up name
			testCommon(HttpServletResponse.SC_OK, "?subscriber=foo", FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
		}
	}
	@Test
	public void testNormalBadSubscriber() {
		String query = "?subscriber=ZZTOP123456";
		testCommon(HttpServletResponse.SC_OK, query, FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
		if (returnedlist.length() != 0)
			fail("bad length");
	}
	private void testCommon(int expect) {
		testCommon(expect, "", FeedServlet.FEEDLIST_CONTENT_TYPE, "JUnit");
	}
	private void testCommon(int expect, String query, String ectype, String bhdr) {
		String url = props.getProperty("test.host") + "/" + query;
		HttpGet httpGet = new HttpGet(url);
		try {
			if (bhdr != null)
				httpGet.addHeader(FeedServlet.BEHALF_HEADER, bhdr);

			HttpResponse response = httpclient.execute(httpGet);
		    ckResponse(response, expect);

			HttpEntity entity = response.getEntity();
			String ctype = entity.getContentType().getValue().trim();
			if (!ctype.equals(ectype))
				fail("Got wrong content type: "+ctype);

			// do something useful with the response body and ensure it is fully consumed
			if (ctype.equals(FeedServlet.FEEDLIST_CONTENT_TYPE)) {
				try {
					returnedlist = new JSONArray(new JSONTokener(entity.getContent()));
				} catch (Exception e) {
					fail("Bad JSON: "+e.getMessage());
				}
			} else {
				EntityUtils.consume(entity);
			}
		} catch (IOException e) {
			fail(e.getMessage());
		} finally {
			httpGet.releaseConnection();
		}
	}
}