/**
 *    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.
 */

#include "mongo/db/matcher/match_details.h"

#include <sstream>

#include "mongo/util/assert_util.h"

namespace mongo {

using std::string;

MatchDetails::MatchDetails() : _elemMatchKeyRequested() {
    resetOutput();
}

void MatchDetails::resetOutput() {
    _loadedRecord = false;
    _elemMatchKey.reset();
}

bool MatchDetails::hasElemMatchKey() const {
    return _elemMatchKey.get();
}

std::string MatchDetails::elemMatchKey() const {
    verify(hasElemMatchKey());
    return *(_elemMatchKey.get());
}

void MatchDetails::setElemMatchKey(const std::string& elemMatchKey) {
    if (_elemMatchKeyRequested) {
        _elemMatchKey.reset(new std::string(elemMatchKey));
    }
}

string MatchDetails::toString() const {
    std::stringstream ss;
    ss << "loadedRecord: " << _loadedRecord << " ";
    ss << "elemMatchKeyRequested: " << _elemMatchKeyRequested << " ";
    ss << "elemMatchKey: " << (_elemMatchKey ? _elemMatchKey->c_str() : "NONE") << " ";
    return ss.str();
}
}  // namespace mongo