RealItemConfigurationFlowHandlerFactory.kt

override fun create(
    workingItem: WorkingItem,
    cartId: String?,
    transactionInfo: TransactionInfo
  ): ItemConfigurationFlowHandlerReadWrite {
    check(!workingItem.isItemPartOfCombo) {
      "Use 'createForItemInCombo' for items that are part of a combo."
    }
    workingItem.lockConfiguration = transactionInfo.isItemLocked
    workingItem.selectedVariation = getDefaultVariationIfNeeded(
      variations = workingItem.sellableVariations,
      skipConfigureItemDetailScreenSetting = workingItem.skipConfigureItemDetailScreenSetting,
      currentSelectedVariation = workingItem.selectedVariation,
      checkDefaultVariationAvailability = features.latest(SHOW_ITEM_COUNT_ON_TILES).value,
    )

    // Only set seating, course or quantity if we are not editing an item already in the cart.
    if (cartId == null) {
      workingItem.maybeOverrideQuantity()
      workingItem.maybeSetSeating()
      workingItem.maybeSelectCourse(
        isStraightFire = workingItem.isStraightFireItem,
        sortType = cartLayoutRepository.selectedCartSortType
      )
    }

    val cartItem = workingItem.finish()
    val (index, _) = transaction.findItemAndIndex(cartId!!)

    val configureItemState = ConfigureOrderItemState.loadedOrderItemState(
      voidCompSettings,
      configureItemHost,
      currencyCode,
      index,
      orderItemBundleKey,
      cartItem
    )
    return createV2(
      configureItemState = configureItemState,
      transactionInfo = transactionInfo,
      shouldSkipVariationStep = false,
      priceAdjustmentAmountsForCombo = emptyMap(),
      allowSeatChangesPostFire = itemConfigFlowFlags.canReassignSeatsPostFire,
      cartIdForItemWithAppliedCombo = null,
    )
  }