IAP

Shared/IAPManager.swift

@@ -20,7 +20,8 @@ public enum StoreError: Error {
 class IAPManager: ObservableObject {
     @Published private(set) var showIAP = false
     @Published private(set) var subscriptions = [Product: (status: [Product.SubscriptionInfo.Status], renewalInfo: RenewalInfo)?]()
-
+    @AppStorage(UserDefaultsStore.Keys.firstLaunchDate.rawValue, store: GroupUserDefaults.groupDefaults) private var firstLaunchDate = Date()
+    
     public var sortedSubscriptionKeysByPriceOptions: [Product] {
         subscriptions.keys.sorted(by: {
             $0.price < $1.price
@@ -74,23 +75,52 @@ class IAPManager: ObservableObject {
     
     var updateListenerTask: Task<Void, Error>? = nil
         
+    public var daysLeftBeforeIAP: Int {
+        let daysSinceInstall = Calendar.current.dateComponents([.day, .hour, .minute, .second], from: firstLaunchDate, to: Date())
+        if let days = daysSinceInstall.day {
+            return 30 - days
+        }
+        return 0
+    }
+    
+    public var expireDate: Date? {
+        Calendar.current.date(byAdding: .day, value: 30, to: firstLaunchDate) ?? nil
+    }
+    
     private let iapIdentifiers = Set([
         "com.88oakapps.ifeel.IAP.subscription.weekly",
         "com.88oakapps.ifeel.IAP.subscription.monthly",
         "com.88oakapps.ifeel.IAP.subscription.yearly"
     ])
     
+    var expireOnTimer: Timer?
+    
     init() {
         //Start a transaction listener as close to app launch as possible so you don't miss any transactions.
         updateListenerTask = listenForTransactions()
         
         refresh()
+        
+        setUpdateTimer()
     }
     
     deinit {
         updateListenerTask?.cancel()
     }
     
+    func setUpdateTimer() {
+        if let expireDate = expireDate {
+            expireOnTimer = Timer.init(fire: expireDate, interval: 0, repeats: false, block: { _ in
+                self.decideShowIAP()
+            })
+            RunLoop.main.add(expireOnTimer!, forMode: .common)
+        } else {
+            if let expireOnTimer = expireOnTimer {
+                expireOnTimer.invalidate()
+            }
+        }
+    }
+    
     func refresh() {
         Task {
             //During store initialization, request products from the App Store.
@@ -104,16 +134,25 @@ class IAPManager: ObservableObject {
     }
     
     func decideShowIAP() {
-        guard !subscriptions.isEmpty else {
-            return
-        }
-        var tmpShowIAP = true
+        // if we have a sub in the subscriptions dict
+        // then we dont need to show
         for (_, value) in self.subscriptions {
             if value != nil {
-                tmpShowIAP = false
+                DispatchQueue.main.async {
+                    self.showIAP = false
+                }
                 return
             }
         }
+        
+        var tmpShowIAP = true
+        // if its passed 30 days with no sub
+        if daysLeftBeforeIAP <= 0 {
+            tmpShowIAP = true
+        } else {
+            tmpShowIAP = false
+        }
+        
         DispatchQueue.main.async {
             self.showIAP = tmpShowIAP
         }