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/*
 * Copyright © 2009 HotPads ([email protected])
 *
 * 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.datarouter.gcp.spanner.field.array;

import java.util.List;

import com.google.cloud.spanner.Key.Builder;
import com.google.cloud.spanner.ResultSet;
import com.google.cloud.spanner.Value;

import io.datarouter.gcp.spanner.ddl.SpannerColumnType;
import io.datarouter.gcp.spanner.field.SpannerBaseFieldCodec;
import io.datarouter.model.field.imp.array.IntegerArrayField;
import io.datarouter.scanner.IterableScanner;
import io.datarouter.util.number.NumberTool;

public class SpannerIntegerArrayFieldCodec extends SpannerBaseFieldCodec,IntegerArrayField>{

	public SpannerIntegerArrayFieldCodec(IntegerArrayField field){
		super(field);
	}

	@Override
	public SpannerColumnType getSpannerColumnType(){
		return SpannerColumnType.INT64_ARRAY;
	}

	@Override
	public Value getSpannerValue(){
		return IterableScanner.ofNullable(field.getValue())
				.map(NumberTool::longValue)
				.listTo(Value::int64Array);
	}

	@Override
	public Builder setKey(Builder key){
		throw new RuntimeException("Invalid Key type: " + field.getKey().getName());
	}

	@Override
	public List getValueFromResultSet(ResultSet rs){
		List columnResults = rs.getLongList(field.getKey().getColumnName());
		return IterableScanner.ofNullable(columnResults)
				.map(aLong -> aLong == null ? null : aLong.intValue())
				.list();
	}

}