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/*
 * 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 io.trino.plugin.hive.coercions;

import io.trino.spi.block.Block;
import io.trino.spi.block.BlockBuilder;
import io.trino.spi.block.LongArrayBlock;
import io.trino.spi.type.BigintType;
import io.trino.spi.type.IntegerType;

import static io.trino.spi.type.BigintType.BIGINT;
import static io.trino.spi.type.IntegerType.INTEGER;

public class IntegerToBigintCoercer
        extends TypeCoercer
{
    public IntegerToBigintCoercer()
    {
        super(INTEGER, BIGINT);
    }

    @Override
    public Block apply(Block block)
    {
        // data may have already been coerced by the Avro reader
        if (block instanceof LongArrayBlock) {
            return block;
        }
        return super.apply(block);
    }

    @Override
    protected void applyCoercedValue(BlockBuilder blockBuilder, Block block, int position)
    {
        BIGINT.writeLong(blockBuilder, INTEGER.getInt(block, position));
    }
}