/**
 *    Copyright (C) 2015 MongoDB Inc.
 *
 *    This program is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    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
 *    GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *    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 GNU Affero General 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/platform/basic.h"

#include "mongo/db/repl/optime.h"
#include "mongo/db/repl/repl_set_command.h"
#include "mongo/db/repl/repl_set_declare_election_winner_args.h"
#include "mongo/db/repl/replication_coordinator_global.h"

namespace mongo {
namespace repl {

    class CmdReplSetDeclareElectionWinner : public ReplSetCommand {
    public:
        CmdReplSetDeclareElectionWinner() : ReplSetCommand("replSetDeclareElectionWinner") { }
    private:
        bool run(OperationContext* txn,
                 const std::string&,
                 BSONObj& cmdObj,
                 int,
                 std::string& errmsg,
                 BSONObjBuilder& result) final {

            Status status = getGlobalReplicationCoordinator()->checkReplEnabledForCommand(&result);
            if (!status.isOK()) {
                return appendCommandStatus(result, status);
            }

            ReplSetDeclareElectionWinnerArgs parsedArgs;
            status = parsedArgs.initialize(cmdObj);
            if (!status.isOK()) {
                return appendCommandStatus(result, status);
            }

            long long responseTerm = -1;
            status = getGlobalReplicationCoordinator()->processReplSetDeclareElectionWinner(
                    parsedArgs,
                    &responseTerm);
            result.append("term", responseTerm);
            return appendCommandStatus(result, status);
        }
    } cmdReplSetDeclareElectionWinner;

} // namespace repl
} // namespace mongo