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/*
 * Copyright 2021 Hazelcast Inc.
 *
 * Licensed under the Hazelcast Community License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://hazelcast.com/hazelcast-community-license
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.jet.sql.impl.opt.physical;

import com.hazelcast.jet.sql.impl.opt.OptUtils;
import com.hazelcast.org.apache.calcite.plan.HazelcastRelOptCluster;
import com.hazelcast.org.apache.calcite.plan.RelOptRule;
import com.hazelcast.org.apache.calcite.plan.RelOptRuleCall;
import com.hazelcast.org.apache.calcite.plan.RelRule;
import com.hazelcast.org.apache.calcite.plan.RelRule.Config;
import com.hazelcast.org.apache.calcite.rel.rules.TransformationRule;
import org.immutables.value.Value;

/**
 * A rule that replaces any streaming SINK INTO without Jet job creation with
 * {@link MustNotExecutePhysicalRel}.
 */
@Value.Enclosing
public final class StreamingInsertMustNotExecuteRule extends RelRule implements TransformationRule {

    @Value.Immutable
    public interface Config extends RelRule.Config {
        Config DEFAULT = ImmutableStreamingInsertMustNotExecuteRule.Config.builder()
                .description(StreamingInsertMustNotExecuteRule.class.getSimpleName())
                .operandSupplier(b0 -> b0.operand(SinkPhysicalRel.class)
                        .predicate(OptUtils::isUnbounded)
                        .anyInputs()
                )
                .build();

        @Override
        default RelOptRule toRule() {
            return new StreamingInsertMustNotExecuteRule(this);
        }
    }

    private StreamingInsertMustNotExecuteRule(Config config) {
        super(config);
    }

    @SuppressWarnings("checkstyle:DeclarationOrder")
    public static final RelOptRule INSTANCE = new StreamingInsertMustNotExecuteRule(Config.DEFAULT);

    @Override
    public void onMatch(RelOptRuleCall call) {
        SinkPhysicalRel sinkRel = call.rel(0);
        HazelcastRelOptCluster cluster = (HazelcastRelOptCluster) sinkRel.getCluster();
        if (!cluster.requiresJob()) {
            call.transformTo(
                    new MustNotExecutePhysicalRel(sinkRel.getCluster(), sinkRel.getTraitSet(), sinkRel.getRowType(),
                            "You must use CREATE JOB statement for a streaming DML query"));
        }
    }
}