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/*
 * 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.paimon.spark.commands

import org.apache.paimon.schema.{SchemaMergingUtils, TableSchema}
import org.apache.paimon.spark.SparkTypeUtils
import org.apache.paimon.table.FileStoreTable
import org.apache.paimon.types.RowType

import org.apache.spark.sql.types.StructType

import scala.collection.JavaConverters._

trait SchemaHelper extends WithFileStoreTable {

  val originTable: FileStoreTable

  protected var newTable: Option[FileStoreTable] = None

  override def table: FileStoreTable = newTable.getOrElse(originTable)

  def tableSchema: TableSchema = table.schema

  def mergeAndCommitSchema(dataSchema: StructType, allowExplicitCast: Boolean): Unit = {
    val dataRowType = SparkTypeUtils.toPaimonType(dataSchema).asInstanceOf[RowType]
    if (table.store().mergeSchema(dataRowType, allowExplicitCast)) {
      newTable = Some(table.copyWithLatestSchema())
    }
  }

  def updateTableWithOptions(options: Map[String, String]): Unit = {
    newTable = Some(table.copy(options.asJava))
  }

}