/*
 * 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 org.apache.amoro.io.writer;

import org.apache.iceberg.FileFormat;
import org.apache.iceberg.PartitionKey;
import org.apache.iceberg.PartitionSpec;
import org.apache.iceberg.Schema;
import org.apache.iceberg.StructLike;
import org.apache.iceberg.data.IcebergRecordWrapper;
import org.apache.iceberg.data.Record;
import org.apache.iceberg.io.FileAppenderFactory;
import org.apache.iceberg.io.FileIO;
import org.apache.iceberg.io.OutputFileFactory;
import org.apache.iceberg.io.PartitionedFanoutWriter;

/**
 * A {@link PartitionedFanoutWriter} for generic records. This class can write multiple partition
 * files.
 */
public class GenericIcebergPartitionedFanoutWriter extends PartitionedFanoutWriter<Record> {

  private final PartitionKey partitionKey;
  private final IcebergRecordWrapper wrapper;

  public GenericIcebergPartitionedFanoutWriter(
      Schema schema,
      PartitionSpec spec,
      FileFormat format,
      FileAppenderFactory<Record> appenderFactory,
      OutputFileFactory fileFactory,
      FileIO io,
      long targetFileSize) {
    super(spec, format, appenderFactory, fileFactory, io, targetFileSize);
    this.partitionKey = new PartitionKey(spec, schema);
    this.wrapper = new IcebergRecordWrapper(schema.asStruct());
  }

  @Override
  protected PartitionKey partition(Record row) {
    StructLike structLike = wrapper.wrap(row);
    partitionKey.partition(structLike);
    return partitionKey;
  }
}
