/*
/* Copyright 2018-2026 contributors to the OpenLineage project
/* SPDX-License-Identifier: Apache-2.0
*/

package io.openlineage.spark.agent.lifecycle.plan;

import io.openlineage.client.OpenLineage;
import io.openlineage.spark.agent.util.PathUtils;
import io.openlineage.spark.api.OpenLineageContext;
import io.openlineage.spark.api.QueryPlanVisitor;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import org.apache.spark.sql.catalyst.catalog.CatalogTable;
import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan;
import org.apache.spark.sql.execution.command.CreateDataSourceTableCommand;

/**
 * {@link LogicalPlan} visitor that matches an {@link CreateDataSourceTableCommand} and extracts the
 * output {@link OpenLineage.Dataset} being written.
 */
public class CreateDataSourceTableCommandVisitor
    extends QueryPlanVisitor<CreateDataSourceTableCommand, OpenLineage.OutputDataset> {

  public CreateDataSourceTableCommandVisitor(OpenLineageContext context) {
    super(context);
  }

  @Override
  public List<OpenLineage.OutputDataset> apply(LogicalPlan x) {
    if (!context.getSparkSession().isPresent()) {
      return Collections.emptyList();
    }

    CreateDataSourceTableCommand command = (CreateDataSourceTableCommand) x;
    CatalogTable catalogTable = command.table();

    return Collections.singletonList(
        outputDataset()
            .getDataset(
                PathUtils.fromCatalogTable(catalogTable, context.getSparkSession().get()),
                catalogTable.schema(),
                OpenLineage.LifecycleStateChangeDatasetFacet.LifecycleStateChange.CREATE));
  }

  @Override
  public Optional<String> jobNameSuffix(CreateDataSourceTableCommand command) {
    return Optional.of(command.table())
        .map(t -> t.identifier())
        .map(i -> tableIdentifierToSuffix(i));
  }
}
