/*

 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.test.lib.jfr;

import java.time.Duration;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.test.lib.Asserts;

public class SimpleEventHelper {

    public static void enable(Recording r, boolean isEnabled) {

        if (isEnabled) {

            r.enable(SimpleEvent.class).withThreshold(Duration.ofMillis(0)).withoutStackTrace();

        } else {

            r.disable(SimpleEvent.class);

        }

    }

    public static SimpleEvent createEvent(int id) {

        SimpleEvent event = new SimpleEvent();

        event.begin();

        event.id = id;

        event.end();

        event.commit();

        return event;

    }

    public static void verifyEvents(Recording r, int ... ids) throws Exception {

        List<Integer> eventIds = new ArrayList<>();

        for (RecordedEvent event : Events.fromRecording(r)) {

            if (Events.isEventType(event, SimpleEvent.class.getName())) {

                int id = Events.assertField(event, "id").getValue();

                System.out.printf("recording %s: event.id=%d%n", r.getName(), id);

                eventIds.add(id);

            }

        }

        Asserts.assertEquals(eventIds.size(), ids.length, "Wrong number of events");

        for (int i = 0; i < ids.length; ++i) {

            Asserts.assertEquals(eventIds.get(i).intValue(), ids[i], "Wrong id in event");

        }

    }

    public static void verifyContains(List<RecordedEvent> events, int ... ids) throws Exception {

        Set<Integer> missingIds = new HashSet<>();

        for (int id : ids) {

            missingIds.add(id);

        }

        for (RecordedEvent event : getSimpleEvents(events)) {

            int id = Events.assertField(event, "id").getValue();

            System.out.printf("event.id=%d%n", id);

            missingIds.remove(new Integer(id));

        }

        if (!missingIds.isEmpty()) {

            missingIds.forEach(id -> System.out.println("Missing MyEvent with id " + id));

            Asserts.fail("Missing some MyEvent events");

        }

    }

    public static void verifyNotContains(List<RecordedEvent> events, int ... ids) throws Exception {

        for (RecordedEvent event : getSimpleEvents(events)) {

            int eventId = Events.assertField(event, "id").getValue();

            System.out.printf("event.id=%d%n", eventId);

            for (int id : ids) {

                Events.assertField(event, "id").notEqual(id);

            }

        }

    }

    public static List<RecordedEvent> getSimpleEvents(List<RecordedEvent> events) {

        List<RecordedEvent> myEvents = new ArrayList<>();

        for (RecordedEvent event : events) {

            if (Events.isEventType(event, SimpleEvent.class.getName())) {

                myEvents.add(event);

            }

        }

        return myEvents;

    }

}