/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.cluster.service;

import org.elasticsearch.common.Priority;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.core.TimeValue;
import org.elasticsearch.xcontent.Text;

import java.io.IOException;

public record PendingClusterTask(long insertOrder, Priority priority, Text source, long timeInQueue, boolean executing)
    implements
        Writeable {

    public PendingClusterTask(StreamInput in) throws IOException {
        this(in.readVLong(), Priority.readFrom(in), in.readText(), in.readLong(), in.readBoolean());
    }

    public PendingClusterTask {
        assert timeInQueue >= 0 : "got a negative timeInQueue [" + timeInQueue + "]";
        assert insertOrder >= 0 : "got a negative insertOrder [" + insertOrder + "]";
    }

    public long getInsertOrder() {
        return insertOrder;
    }

    public Priority getPriority() {
        return priority;
    }

    public Text getSource() {
        return source;
    }

    public long getTimeInQueueInMillis() {
        return timeInQueue;
    }

    public TimeValue getTimeInQueue() {
        return new TimeValue(getTimeInQueueInMillis());
    }

    public boolean isExecuting() {
        return executing;
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        out.writeVLong(insertOrder);
        Priority.writeTo(priority, out);
        out.writeText(source);
        out.writeLong(timeInQueue);
        out.writeBoolean(executing);
    }
}