Action builders also need to be on main actor

Examples/TripKitUIExample/ExampleCustomizer.swift

@@ -41,6 +41,7 @@ extension ExampleCustomizer {
     }
   }
 
+  @MainActor
   private static func buildFavoriteStopAction(stop: TKUIStopAnnotation) -> TKUITimetableCard.Action {
 
     func isFavorite() -> Bool { InMemoryFavoriteManager.shared.hasFavorite(for: stop) }

Sources/TripKitUI/cards/TKUIServiceCard+Configuration.swift

@@ -19,7 +19,7 @@ public extension TKUIServiceCard {
 
     static let empty = Configuration()
 
-    public var serviceActionsFactory: ((EmbarkationPair) -> [TKUICardAction<TKUIServiceCard, EmbarkationPair>])?
+    public var serviceActionsFactory: (@MainActor (EmbarkationPair) -> [TKUICardAction<TKUIServiceCard, EmbarkationPair>])?
   }
 
 }

Sources/TripKitUI/cards/TKUITimetableCard+Configuration.swift

@@ -33,7 +33,7 @@ public extension TKUITimetableCard {
     /// Set this to add a list of action buttons to a timeable card.
     ///
     /// Called when a timetable card gets presented.
-    public var timetableActionsFactory: (([TKUIStopAnnotation]) -> [Action])?
+    public var timetableActionsFactory: (@MainActor ([TKUIStopAnnotation])-> [Action])?
 
     /// This controls whether the title is visible underneath an action icon.
     ///

Sources/TripKitUI/cards/TKUITripOverviewCard+Configuration.swift

@@ -65,7 +65,7 @@ public extension TKUITripOverviewCard {
     ///     more than that will be ignored.
     ///
     /// Called when a trip overview card gets presented.
-    public var tripActionsFactory: ((Trip) -> [TripAction])?
+    public var tripActionsFactory: (@MainActor (Trip) -> [TripAction])?
 
     /// This controls whether the title is visible underneath an action icon.
     ///
@@ -88,7 +88,7 @@ public extension TKUITripOverviewCard {
     ///     more than that will be ignored.
     ///
     /// Called when a trip overview card gets presented.
-    public var segmentActionsfactory: ((TKSegment) -> [SegmentAction])?
+    public var segmentActionsfactory: (@MainActor (TKSegment) -> [SegmentAction])?
 
     /// Set this to limit how many alerts are shown for a segment
     public var maximumAlertsPerSegment: Int = 3

Sources/TripKitUI/view model/TKUITripOverviewViewModel+Content.swift

@@ -274,6 +274,7 @@ fileprivate extension TKSegment {
     return TKUITripOverviewViewModel.TimeInfo(actualTime: arrivalTime, timetableTime: self.scheduledTimetableEndTime)
   }
 
+  @MainActor
   func toTerminal(previous: TKSegment?, next: TKSegment?) -> TKUITripOverviewViewModel.TerminalItem {
     let isStart = order == .start
     let subtitle = platformInfo(previous: previous, next: next)
@@ -292,6 +293,7 @@ fileprivate extension TKSegment {
   }
 
   /// Create a stationary item for a stationary segment
+  @MainActor
   func toStationary(previous: TKSegment?, next: TKSegment?) -> TKUITripOverviewViewModel.StationaryItem {
     assert(isStationary)
 
@@ -343,6 +345,7 @@ fileprivate extension TKSegment {
   }
 
   /// Create a stationary item (bridge) for a non-stationary segment
+  @MainActor
   func toStationaryBridge(to next: TKSegment) -> TKUITripOverviewViewModel.StationaryItem {
     assert(!isStationary && !next.isStationary)
 
@@ -365,10 +368,12 @@ fileprivate extension TKSegment {
     )
   }
 
+  @MainActor
   func toAlert() -> TKUITripOverviewViewModel.AlertItem {
     return TKUITripOverviewViewModel.AlertItem(connection: line, segment: self)
   }
 
+  @MainActor
   func toMoving() -> TKUITripOverviewViewModel.MovingItem {
     var accessories: [TKUITripOverviewViewModel.SegmentAccessory] = []