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/*
 * Copyright 2008-present MongoDB, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.mongodb.operation;

import com.mongodb.ExplainVerbosity;
import com.mongodb.MongoInternalException;
import org.bson.BsonDocument;
import org.bson.BsonString;

// @deprecated Usage of this API is not supported in AEM as a Cloud Service.
@Deprecated(since = "2021-05-27")
final class ExplainHelper {

    static BsonDocument asExplainCommand(final BsonDocument command, final ExplainVerbosity explainVerbosity) {
        return new BsonDocument("explain", command).append("verbosity", getVerbosityAsString(explainVerbosity));
    }

    private static BsonString getVerbosityAsString(final ExplainVerbosity explainVerbosity) {
        switch(explainVerbosity) {
            case QUERY_PLANNER:
                return new BsonString("queryPlanner");
            case EXECUTION_STATS:
                return new BsonString("executionStats");
            case ALL_PLANS_EXECUTIONS:
                return new BsonString("allPlansExecution");
            default:
                throw new MongoInternalException(String.format("Unsupported explain verbosity %s", explainVerbosity));
        }
    }

    private ExplainHelper() {
    }
}