Repo created

iphone/Maps/UI/PlacePage/PlacePageLayout/Layouts/PlacePageTrackLayout.swift

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+class PlacePageTrackLayout: IPlacePageLayout {
+  private var placePageData: PlacePageData
+  private var trackData: PlacePageTrackData
+  private var interactor: PlacePageInteractor
+  private let storyboard: UIStoryboard
+  weak var presenter: PlacePagePresenterProtocol?
+
+  lazy var bodyViewControllers: [UIViewController] = {
+    return configureViewControllers()
+  }()
+
+  var actionBar: ActionBarViewController? {
+    actionBarViewController
+  }
+
+  var navigationBar: UIViewController? {
+    placePageNavigationViewController
+  }
+
+  var headerViewControllers: [UIViewController] {
+    [headerViewController, previewViewController]
+  }
+
+  lazy var headerViewController: PlacePageHeaderViewController = {
+    PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .flexible)
+  }()
+
+  private lazy var previewViewController: PlacePagePreviewViewController = {
+    let vc = storyboard.instantiateViewController(ofType: PlacePagePreviewViewController.self)
+    vc.placePagePreviewData = placePageData.previewData
+    return vc
+  }()
+
+  private lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
+    return PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .fixed)
+  }()
+
+  private lazy var editTrackViewController: PlacePageEditBookmarkOrTrackViewController = {
+    let vc = storyboard.instantiateViewController(ofType: PlacePageEditBookmarkOrTrackViewController.self)
+    vc.view.isHidden = true
+    vc.delegate = interactor
+    return vc
+  }()
+
+  lazy var elevationMapViewController: ElevationProfileViewController? = {
+    guard trackData.trackInfo.hasElevationInfo, trackData.elevationProfileData != nil else {
+      return nil
+    }
+    return ElevationProfileBuilder.build(trackData: trackData, delegate: interactor)
+  }()
+
+  private lazy var actionBarViewController: ActionBarViewController = {
+    let vc = storyboard.instantiateViewController(ofType: ActionBarViewController.self)
+    vc.placePageData = placePageData
+    vc.canAddStop = MWMRouter.canAddIntermediatePoint()
+    vc.isRoutePlanning = MWMNavigationDashboardManager.shared().state != .hidden
+    vc.delegate = interactor
+    return vc
+  }()
+
+  init(interactor: PlacePageInteractor, storyboard: UIStoryboard, data: PlacePageData) {
+    self.interactor = interactor
+    self.storyboard = storyboard
+    self.placePageData = data
+    guard let trackData = data.trackData else {
+      fatalError("PlacePageData must contain trackData for the PlacePageTrackLayout")
+    }
+    self.trackData = trackData
+  }
+
+  private func configureViewControllers() -> [UIViewController] {
+    var viewControllers = [UIViewController]()
+
+    viewControllers.append(editTrackViewController)
+    if let trackData = placePageData.trackData {
+      editTrackViewController.view.isHidden = false
+      editTrackViewController.data = .track(trackData)
+    }
+
+    placePageData.onBookmarkStatusUpdate = { [weak self] in
+      guard let self = self else { return }
+      self.previewViewController.placePagePreviewData = self.placePageData.previewData
+      self.updateTrackRelatedSections()
+    }
+
+    if let elevationMapViewController {
+      viewControllers.append(elevationMapViewController)
+    }
+
+    return viewControllers
+  }
+
+  func calculateSteps(inScrollView scrollView: UIScrollView, compact: Bool) -> [PlacePageState] {
+    var steps: [PlacePageState] = []
+    let scrollHeight = scrollView.height
+    steps.append(.closed(-scrollHeight))
+    steps.append(.full(0))
+    return steps
+  }
+}
+
+private extension PlacePageTrackLayout {
+  func updateTrackRelatedSections() {
+    guard let trackData = placePageData.trackData else {
+      presenter?.closeAnimated()
+      return
+    }
+    editTrackViewController.data = .track(trackData)
+    let previewData = placePageData.previewData
+    if let headerViewController = headerViewControllers.compactMap({ $0 as? PlacePageHeaderViewController }).first {
+      headerViewController.setTitle(previewData.title, secondaryTitle: previewData.secondaryTitle)
+      placePageNavigationViewController.setTitle(previewData.title, secondaryTitle: previewData.secondaryTitle)
+    }
+    if let previewViewController = headerViewControllers.compactMap({ $0 as? PlacePagePreviewViewController }).first {
+      previewViewController.placePagePreviewData = previewData
+      previewViewController.updateViews()
+    }
+    presenter?.layoutIfNeeded()
+  }
+}