iap warning view

Shared/views/MonthView/MonthView.swift

@@ -27,7 +27,7 @@ struct MonthView: View {
     @State private var showingSheet = false
     @StateObject private var onboardingData = OnboardingDataDataManager.shared
     @StateObject private var filteredDays = DaysFilterClass.shared
-
+    
     class StupidAssDetailViewObservableObject: ObservableObject {
         @Published var fuckingWrapped: MonthDetailView? = nil
         @Published var showFuckingSheet = false
@@ -44,6 +44,7 @@ struct MonthView: View {
     ]
     
     @ObservedObject var viewModel: DayViewViewModel
+    @State private var iAPWarningViewHidden = false
     
     var body: some View {
         ZStack {
@@ -72,6 +73,12 @@ struct MonthView: View {
                         )
                     }
                     .padding([.leading, .trailing])
+                    .background(
+                        GeometryReader { proxy in
+                            let offset = proxy.frame(in: .named("scroll")).minY
+                            Color.clear.preference(key: ViewOffsetKey.self, value: offset)
+                        }
+                    )
                 }
                 .disabled(iapManager.showIAP)
             }
@@ -81,6 +88,13 @@ struct MonthView: View {
                     Spacer()
                     PurchaseButtonView(height: 175, iapManager: iapManager)
                 }
+            } else if iapManager.showIAPWarning {
+                VStack {
+                    Spacer()
+                    if !iAPWarningViewHidden {
+                        IAPWarningView(height: 75, iapManager: iapManager)
+                    }
+                }
             }
         }
         .onAppear(perform: {
@@ -101,6 +115,10 @@ struct MonthView: View {
                 ShareSheet(photo: uiImage)
             }
         }
+        .onPreferenceChange(ViewOffsetKey.self) { value in
+            print(value)
+            iAPWarningViewHidden = value < 0
+        }
     }
     
     
@@ -230,7 +248,7 @@ extension MonthView {
     }
 }
 
-struct HomeViewTwo_Previews: PreviewProvider {
+struct MonthView_Previews: PreviewProvider {
     static var previews: some View {
         MonthView(viewModel: DayViewViewModel(addMonthStartWeekdayPadding: true))
     }