/**
 *    Copyright (C) 2018-present MongoDB, 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
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the Server Side Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#pragma once

#include <iosfwd>
#include <string>

#include "mongo/db/repl/optime.h"
#include "mongo/util/str.h"

namespace mongo {
namespace repl {

/**
 * Basic structure that contains a value and an opTime.
 */
template <typename T>
struct OpTimeWith {
public:
    OpTimeWith() = default;
    explicit OpTimeWith(T val) : value(std::move(val)) {}
    OpTimeWith(T val, repl::OpTime ts) : value(std::move(val)), opTime(std::move(ts)) {}

    std::string toString() const;

    bool operator==(const OpTimeWith<T>& rhs) const {
        return opTime == rhs.opTime && value == rhs.value;
    }

    T value;
    repl::OpTime opTime;
};

template <typename T>
std::ostream& operator<<(std::ostream& out, const OpTimeWith<T>& opTimeWith) {
    return out << opTimeWith.toString();
}

template <typename T>
std::string OpTimeWith<T>::toString() const {
    return str::stream() << opTime.toString() << "[" << value << "]";
}

}  // namespace repl
}  // namespace mongo