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;

    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);

        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;

    }