/*

 * Copyright (c) 2019, 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

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package jdk.jfr.internal.consumer;

import java.time.Instant;

import java.util.ArrayList;

import java.util.List;

import java.util.function.Consumer;

import jdk.jfr.consumer.RecordedEvent;

import jdk.jfr.internal.Utils;

import jdk.jfr.internal.consumer.Dispatcher.EventDispatcher;

final class StreamConfiguration {

    final List<Runnable> closeActions = new ArrayList<>();

    final List<Runnable> flushActions = new ArrayList<>();

    final List<EventDispatcher> eventActions = new ArrayList<>();

    final List<Consumer<Throwable>> errorActions = new ArrayList<>();

    boolean reuse = true;

    boolean ordered = true;

    Instant startTime = null;

    Instant endTime = null;

    boolean started = false;

    long startNanos = 0;

    long endNanos = Long.MAX_VALUE;

    private volatile boolean changed = true;

    public synchronized boolean remove(Object action) {

        boolean removed = false;

        removed |= flushActions.removeIf(e -> e == action);

        removed |= closeActions.removeIf(e -> e == action);

        removed |= errorActions.removeIf(e -> e == action);

        removed |= eventActions.removeIf(e -> e.getAction() == action);

        if (removed) {

            changed = true;

        }

        return removed;

    }

    public synchronized void addEventAction(String name, Consumer<RecordedEvent> consumer) {

        eventActions.add(new EventDispatcher(name, consumer));

        changed = true;

    }

    public void addEventAction(Consumer<RecordedEvent> action) {

        addEventAction(null, action);

    }

    public synchronized void addFlushAction(Runnable action) {

        flushActions.add(action);

        changed = true;

    }

    public synchronized void addCloseAction(Runnable action) {

        closeActions.add(action);

        changed = true;

    }

    public synchronized void addErrorAction(Consumer<Throwable> action) {

        errorActions.add(action);

        changed = true;

    }

    public synchronized void setReuse(boolean reuse) {

        this.reuse = reuse;

        changed = true;

    }

    public synchronized void setOrdered(boolean ordered) {

        this.ordered = ordered;

        changed = true;

    }

    public synchronized void setEndTime(Instant endTime) {

        this.endTime = endTime;

        this.endNanos = Utils.timeToNanos(endTime);

        changed = true;

    }

    public synchronized void setStartTime(Instant startTime) {

        this.startTime = startTime;

        this.startNanos = Utils.timeToNanos(startTime);

        changed = true;

    }

    public synchronized void setStartNanos(long startNanos) {

        this.startNanos = startNanos;

        changed = true;

    }

    public synchronized void setStarted(boolean started) {

        this.started = started;

        changed = true;

    }

    public boolean hasChanged() {

        return changed;

    }

}