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/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * This program 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
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * .
 */
package org.graylog.events.event;

import com.google.auto.value.AutoValue;
import org.graylog2.plugin.Message;

import javax.annotation.Nullable;
import java.util.Optional;

@AutoValue
public abstract class EventWithContext {
    public abstract Event event();

    public abstract Optional messageContext();

    public abstract Optional eventContext();

    public static EventWithContext create(Event event) {
        return builder().event(event).build();
    }

    public static EventWithContext create(Event event, Message messageContext) {
        return builder().event(event).messageContext(messageContext).build();
    }

    public static EventWithContext create(Event event, Event eventContext) {
        return builder().event(event).eventContext(eventContext).build();
    }

    public EventWithContext addMessageContext(Message message) {
        return toBuilder().messageContext(message).build();
    }

    public EventWithContext addEventContext(Event event) {
        return toBuilder().eventContext(event).build();
    }

    public static Builder builder() {
        return new AutoValue_EventWithContext.Builder();
    }

    public abstract Builder toBuilder();

    @AutoValue.Builder
    public static abstract class Builder {
        public abstract Builder event(Event event);

        public abstract Builder messageContext(@Nullable Message message);

        public abstract Builder eventContext(@Nullable Event event);

        public abstract EventWithContext build();
    }
}