/**
 *    Copyright (C) 2016 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/bson/bsonmisc.h"
#include "mongo/db/write_concern_options.h"
#include "mongo/s/migration_secondary_throttle_options.h"
#include "mongo/unittest/unittest.h"

namespace mongo {

using unittest::assertGet;

namespace {

TEST(MigrationSecondaryThrottleOptions, CreateDefault) {
    MigrationSecondaryThrottleOptions options =
        MigrationSecondaryThrottleOptions::create(MigrationSecondaryThrottleOptions::kDefault);
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kDefault, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
    ASSERT_BSONOBJ_EQ(BSONObj(), options.toBSON());
}

TEST(MigrationSecondaryThrottleOptions, CreateOn) {
    MigrationSecondaryThrottleOptions options =
        MigrationSecondaryThrottleOptions::create(MigrationSecondaryThrottleOptions::kOn);
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
    ASSERT_BSONOBJ_EQ(BSON("secondaryThrottle" << true), options.toBSON());
}

TEST(MigrationSecondaryThrottleOptions, CreateOff) {
    MigrationSecondaryThrottleOptions options =
        MigrationSecondaryThrottleOptions::create(MigrationSecondaryThrottleOptions::kOff);
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOff, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
    ASSERT_BSONOBJ_EQ(BSON("secondaryThrottle" << false), options.toBSON());
}

TEST(MigrationSecondaryThrottleOptions, NotSpecifiedInCommandBSON) {
    MigrationSecondaryThrottleOptions options = assertGet(
        MigrationSecondaryThrottleOptions::createFromCommand(BSON("someOtherField" << 1)));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kDefault, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
    ASSERT_BSONOBJ_EQ(BSONObj(), options.toBSON());
}

TEST(MigrationSecondaryThrottleOptions, EnabledInCommandBSONWithoutWriteConcern) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromCommand(
            BSON("someOtherField" << 1 << "secondaryThrottle" << true)));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
}

TEST(MigrationSecondaryThrottleOptions, EnabledInCommandBSONWithSimpleWriteConcern) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromCommand(
            BSON("someOtherField" << 1 << "secondaryThrottle" << true << "writeConcern"
                                  << BSON("w" << 2))));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(options.isWriteConcernSpecified());

    WriteConcernOptions writeConcern = options.getWriteConcern();
    ASSERT_EQ(2, writeConcern.wNumNodes);
    ASSERT_EQ(static_cast<int>(WriteConcernOptions::SyncMode::UNSET),
              static_cast<int>(writeConcern.syncMode));
    ASSERT_EQ(WriteConcernOptions::kNoTimeout, writeConcern.wTimeout);
}

TEST(MigrationSecondaryThrottleOptions, EnabledInCommandBSONWithCompleteWriteConcern) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromCommand(
            BSON("someOtherField" << 1 << "secondaryThrottle" << true << "writeConcern"
                                  << BSON("w" << 3 << "j" << true))));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(options.isWriteConcernSpecified());

    WriteConcernOptions writeConcern = options.getWriteConcern();
    ASSERT_EQ(3, writeConcern.wNumNodes);
    ASSERT_EQ(static_cast<int>(WriteConcernOptions::SyncMode::JOURNAL),
              static_cast<int>(writeConcern.syncMode));
    ASSERT_EQ(WriteConcernOptions::kNoTimeout, writeConcern.wTimeout);
}

TEST(MigrationSecondaryThrottleOptions, DisabledInCommandBSON) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromCommand(
            BSON("someOtherField" << 1 << "secondaryThrottle" << false)));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOff, options.getSecondaryThrottle());
}

TEST(MigrationSecondaryThrottleOptions, NotSpecifiedInBalancerConfig) {
    MigrationSecondaryThrottleOptions options = assertGet(
        MigrationSecondaryThrottleOptions::createFromBalancerConfig(BSON("someOtherField" << 1)));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kDefault, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
    ASSERT_BSONOBJ_EQ(BSONObj(), options.toBSON());
}

TEST(MigrationSecondaryThrottleOptions, EnabledInBalancerConfigLegacyStyle) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromBalancerConfig(
            BSON("someOtherField" << 1 << "_secondaryThrottle" << true)));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(!options.isWriteConcernSpecified());
}

TEST(MigrationSecondaryThrottleOptions, EnabledInBalancerConfigWithSimpleWriteConcern) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromBalancerConfig(
            BSON("someOtherField" << 1 << "_secondaryThrottle" << BSON("w" << 2))));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(options.isWriteConcernSpecified());

    WriteConcernOptions writeConcern = options.getWriteConcern();
    ASSERT_EQ(2, writeConcern.wNumNodes);
    ASSERT_EQ(static_cast<int>(WriteConcernOptions::SyncMode::UNSET),
              static_cast<int>(writeConcern.syncMode));
    ASSERT_EQ(WriteConcernOptions::kNoTimeout, writeConcern.wTimeout);
}

TEST(MigrationSecondaryThrottleOptions, EnabledInBalancerConfigWithCompleteWriteConcern) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromBalancerConfig(
            BSON("someOtherField" << 1 << "_secondaryThrottle" << BSON("w" << 3 << "j" << true))));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOn, options.getSecondaryThrottle());
    ASSERT(options.isWriteConcernSpecified());

    WriteConcernOptions writeConcern = options.getWriteConcern();
    ASSERT_EQ(3, writeConcern.wNumNodes);
    ASSERT_EQ(static_cast<int>(WriteConcernOptions::SyncMode::JOURNAL),
              static_cast<int>(writeConcern.syncMode));
    ASSERT_EQ(WriteConcernOptions::kNoTimeout, writeConcern.wTimeout);
}

TEST(MigrationSecondaryThrottleOptions, DisabledInBalancerConfig) {
    MigrationSecondaryThrottleOptions options =
        assertGet(MigrationSecondaryThrottleOptions::createFromCommand(
            BSON("someOtherField" << 1 << "_secondaryThrottle" << false)));
    ASSERT_EQ(MigrationSecondaryThrottleOptions::kOff, options.getSecondaryThrottle());
}

TEST(MigrationSecondaryThrottleOptions, ParseFailsDisabledInCommandBSONWriteConcernSpecified) {
    auto status = MigrationSecondaryThrottleOptions::createFromCommand(
        BSON("someOtherField" << 1 << "secondaryThrottle" << false << "writeConcern"
                              << BSON("w"
                                      << "majority")));
    ASSERT_EQ(ErrorCodes::UnsupportedFormat, status.getStatus().code());
}

TEST(MigrationSecondaryThrottleOptions, ParseFailsNotSpecifiedInCommandBSONWriteConcernSpecified) {
    auto status = MigrationSecondaryThrottleOptions::createFromCommand(
        BSON("someOtherField" << 1 << "writeConcern" << BSON("w"
                                                             << "majority")));
    ASSERT_EQ(ErrorCodes::UnsupportedFormat, status.getStatus().code());
}

TEST(MigrationSecondaryThrottleOptions, EqualityOperatorSameValue) {
    auto value1 = MigrationSecondaryThrottleOptions::createWithWriteConcern(
        WriteConcernOptions("majority", WriteConcernOptions::SyncMode::JOURNAL, 30000));
    auto value2 = MigrationSecondaryThrottleOptions::createWithWriteConcern(
        WriteConcernOptions("majority", WriteConcernOptions::SyncMode::JOURNAL, 30000));

    ASSERT(value1 == value2);
}

TEST(MigrationSecondaryThrottleOptions, EqualityOperatorDifferentValues) {
    auto value1 = MigrationSecondaryThrottleOptions::createWithWriteConcern(
        WriteConcernOptions("majority", WriteConcernOptions::SyncMode::JOURNAL, 30000));
    auto value2 = MigrationSecondaryThrottleOptions::createWithWriteConcern(
        WriteConcernOptions("majority", WriteConcernOptions::SyncMode::JOURNAL, 60000));

    ASSERT(!(value1 == value2));
}

}  // namespace
}  // namespace mongo