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package org.opentripplanner.netex.configure;

import java.util.ArrayList;
import java.util.List;
import org.opentripplanner.datastore.api.CompositeDataSource;
import org.opentripplanner.graph_builder.ConfiguredDataSource;
import org.opentripplanner.graph_builder.issue.api.DataImportIssueStore;
import org.opentripplanner.model.impl.OtpTransitServiceBuilder;
import org.opentripplanner.netex.NetexBundle;
import org.opentripplanner.netex.NetexModule;
import org.opentripplanner.netex.config.NetexFeedParameters;
import org.opentripplanner.netex.loader.NetexDataSourceHierarchy;
import org.opentripplanner.routing.graph.Graph;
import org.opentripplanner.service.vehicleparking.VehicleParkingRepository;
import org.opentripplanner.standalone.config.BuildConfig;
import org.opentripplanner.transit.service.TimetableRepository;

/**
 * Responsible for dependency injection and creating main NeTEx module objects. This decouple the
 * main classes in the netex module, and serve as a single entry-point to create a {@link
 * NetexModule} which simplify the code({@link org.opentripplanner.graph_builder.GraphBuilder})
 * using it.
 * 
 * This class inject the build configuration. This way none of the other classes in the
 * `org.opentripplanner.netex` have dependencies to the {@link BuildConfig}.
 * 
 * The naming convention used is close to the defacto standard used by Spring.
 */
public class NetexConfigure {

  private final BuildConfig buildParams;

  public NetexConfigure(BuildConfig builderParams) {
    this.buildParams = builderParams;
  }

  public NetexModule createNetexModule(
    Iterable> netexSources,
    TimetableRepository timetableRepository,
    VehicleParkingRepository parkingRepsitory,
    Graph graph,
    DataImportIssueStore issueStore
  ) {
    List netexBundles = new ArrayList<>();

    for (ConfiguredDataSource it : netexSources) {
      var transitServiceBuilder = new OtpTransitServiceBuilder(
        timetableRepository.getSiteRepository(),
        issueStore
      );
      netexBundles.add(netexBundle(transitServiceBuilder, it));
    }

    return new NetexModule(
      graph,
      timetableRepository,
      parkingRepsitory,
      issueStore,
      buildParams.getSubwayAccessTimeSeconds(),
      buildParams.getTransitServicePeriod(),
      netexBundles
    );
  }

  /** public to enable testing */
  public NetexBundle netexBundle(
    OtpTransitServiceBuilder transitServiceBuilder,
    ConfiguredDataSource configuredDataSource
  ) {
    var source = (CompositeDataSource) configuredDataSource.dataSource();
    var config = configuredDataSource.config();

    return new NetexBundle(
      config.feedId(),
      source,
      hierarchy(source, config),
      transitServiceBuilder,
      config.ferryIdsNotAllowedForBicycle(),
      buildParams.transitRouteToStationCentroid(),
      buildParams.maxStopToShapeSnapDistance,
      config.noTransfersOnIsolatedStops(),
      config.ignoredFeatures()
    );
  }

  private NetexDataSourceHierarchy hierarchy(
    CompositeDataSource source,
    NetexFeedParameters params
  ) {
    return new NetexDataSourceHierarchy(source).prepare(
      params.ignoreFilePattern(),
      params.sharedFilePattern(),
      params.sharedGroupFilePattern(),
      params.groupFilePattern()
    );
  }
}