/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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 software.amazon.documentdb.jdbc.calcite.adapter;

import com.google.common.collect.ImmutableMap;
import org.apache.calcite.linq4j.tree.Types;

import java.lang.reflect.Method;
import java.util.List;

/**
 * Builtin methods in the MongoDB adapter.
 */
public enum DocumentDbMethod {
    // TODO: Investigate using find() here for simpler queries.
    //  See: https://github.com/aws/amazon-documentdb-jdbc-driver/issues/240
    MONGO_QUERYABLE_AGGREGATE(DocumentDbTable.DocumentDbQueryable.class, "aggregate",
            List.class, List.class, List.class);

    @SuppressWarnings("ImmutableEnumChecker")
    private final Method method;

    public Method getMethod() {
        return method;
    }

    public static final ImmutableMap<Method, DocumentDbMethod> MAP;

    static {
        final ImmutableMap.Builder<Method, DocumentDbMethod> builder =
                ImmutableMap.builder();
        for (DocumentDbMethod value : DocumentDbMethod.values()) {
            builder.put(value.method, value);
        }
        MAP = builder.build();
    }

    DocumentDbMethod(final Class clazz, final String methodName, final Class... argumentTypes) {
        this.method = Types.lookupMethod(clazz, methodName, argumentTypes);
    }
}