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/**
 * Copyright (c) The openTCS Authors.
 *
 * This program is free software and subject to the MIT license. (For details,
 * see the licensing information (LICENSE.txt) you should have received with
 * this copy of the software.)
 */
package org.opentcs.components.kernel.services;

import java.util.List;
import org.opentcs.data.ObjectUnknownException;
import org.opentcs.data.TCSObjectReference;
import org.opentcs.data.model.Vehicle;
import org.opentcs.data.order.DriveOrder;
import org.opentcs.data.order.OrderSequence;
import org.opentcs.data.order.TransportOrder;

/**
 * Declares the methods the transport order service must provide which are not accessible to remote
 * peers.
 *
 * @author Martin Grzenia (Fraunhofer IML)
 */
public interface InternalTransportOrderService
    extends TransportOrderService {

  /**
   * Sets an order sequence's finished flag.
   *
   * @param ref A reference to the order sequence to be modified.
   * @throws ObjectUnknownException If the referenced transport order is not in this pool.
   */
  void markOrderSequenceFinished(TCSObjectReference ref)
      throws ObjectUnknownException;

  /**
   * Updates an order sequence's finished index.
   *
   * @param ref A reference to the order sequence to be modified.
   * @param index The sequence's new finished index.
   * @throws ObjectUnknownException If the referenced transport order is not in this pool.
   */
  void updateOrderSequenceFinishedIndex(TCSObjectReference ref, int index)
      throws ObjectUnknownException;

  /**
   * Updates an order sequence's processing vehicle.
   *
   * @param seqRef A reference to the order sequence to be modified.
   * @param vehicleRef A reference to the vehicle processing the order sequence.
   * @throws ObjectUnknownException If the referenced transport order is not in this pool.
   */
  void updateOrderSequenceProcessingVehicle(TCSObjectReference seqRef,
                                            TCSObjectReference vehicleRef)
      throws ObjectUnknownException;

  /**
   * Updates a transport order's list of drive orders.
   *
   * @param ref A reference to the transport order to be modified.
   * @param driveOrders The drive orders containing the data to be copied into this transport
   * order's drive orders.
   * @throws ObjectUnknownException If the referenced transport order does not exist.
   */
  void updateTransportOrderDriveOrders(TCSObjectReference ref,
                                       List driveOrders)
      throws ObjectUnknownException;

  /**
   * Updates a transport order's current drive order.
   * Marks the current drive order as finished, adds it to the list of past drive orders and sets
   * the current drive order to the next one of the list of future drive orders (or {@code null},
   * if that list is empty).
   * If the current drive order is {@code null} because all drive orders have been finished
   * already or none has been started, yet, nothing happens.
   *
   * @param ref A reference to the transport order to be modified.
   * @throws ObjectUnknownException If the referenced transport order is not in this pool.
   */
  void updateTransportOrderNextDriveOrder(TCSObjectReference ref)
      throws ObjectUnknownException;

  /**
   * Updates a transport order's processing vehicle.
   *
   * @param orderRef A reference to the transport order to be modified.
   * @param vehicleRef A reference to the vehicle processing the order.
   * @param driveOrders The drive orders containing the data to be copied into this transport
   * order's drive orders.
   * @throws ObjectUnknownException If the referenced transport order does not exist.
   * @throws IllegalArgumentException If the destinations of the given drive orders do not match
   * the destinations of the drive orders in this transport order.
   */
  void updateTransportOrderProcessingVehicle(TCSObjectReference orderRef,
                                             TCSObjectReference vehicleRef,
                                             List driveOrders)
      throws ObjectUnknownException, IllegalArgumentException;

  /**
   * Updates a transport order's state.
   * Note that transport order states are intended to be manipulated by the dispatcher only.
   * Calling this method from any other parts of the kernel may result in undefined behaviour.
   *
   * @param ref A reference to the transport order to be modified.
   * @param state The transport order's new state.
   * @throws ObjectUnknownException If the referenced transport order does not exist.
   */
  void updateTransportOrderState(TCSObjectReference ref,
                                 TransportOrder.State state)
      throws ObjectUnknownException;
}