Only drop features if refunded

Retain existing providers and trusted networks in beta.

Passepartout/App/iOS/Global/ProductManager+App.swift

@@ -41,12 +41,13 @@ extension ProductManager {
     public func reviewPurchases() {
         let service = TransientStore.shared.service
         reloadReceipt(andNotify: false)
+        let isFullVersion = (try? isEligible(forFeature: .fullVersion)) ?? false
         var anyRefund = false
 
         // review features and potentially revert them if they were used (Siri is handled in AppDelegate)
 
         log.debug("Checking 'Trusted networks'")
-        if !((try? isEligible(forFeature: .trustedNetworks)) ?? false) {
+        if isCancelledPurchase(.fullVersion) || (!isFullVersion && isCancelledPurchase(.trustedNetworks)) {
             
             // reset trusted networks for ALL profiles (must load first)
             for key in service.allProfileKeys() {
@@ -76,7 +77,7 @@ extension ProductManager {
             guard let metadata = InfrastructureFactory.shared.metadata(forName: name) else {
                 continue
             }
-            if !((try? isEligible(forProvider: metadata)) ?? false) {
+            if isCancelledPurchase(.fullVersion) || (!isFullVersion && isCancelledPurchase(metadata.product)) {
                 service.removeProfile(ProfileKey(name))
                 log.debug("\tRefunded provider: \(name)")
                 anyRefund = true

Passepartout/Core/Sources/Model/ProductManager.swift

@@ -65,6 +65,8 @@ public class ProductManager: NSObject {
     
     private var purchaseDates: [Product: Date]
     
+    private var cancelledPurchases: Set<Product>
+    
     private var refreshRequest: SKReceiptRefreshRequest?
     
     private var restoreCompletionHandler: ((Error?) -> Void)?
@@ -75,6 +77,7 @@ public class ProductManager: NSObject {
         purchasedAppBuild = nil
         purchasedFeatures = []
         purchaseDates = [:]
+        cancelledPurchases = []
         
         super.init()
 
@@ -185,6 +188,10 @@ public class ProductManager: NSObject {
         #endif
     }
     
+    public func isCancelledPurchase(_ product: Product) -> Bool {
+        return cancelledPurchases.contains(product)
+    }
+    
     public func purchaseDate(forProduct product: Product) -> Date? {
         return purchaseDates[product]
     }
@@ -203,6 +210,7 @@ public class ProductManager: NSObject {
             purchasedAppBuild = buildNumber
         }
         purchasedFeatures.removeAll()
+        cancelledPurchases.removeAll()
 
         if let buildNumber = purchasedAppBuild {
             log.debug("Original purchased build: \(buildNumber)")
@@ -222,6 +230,7 @@ public class ProductManager: NSObject {
                 }
                 if let cancellationDate = $0.cancellationDate {
                     log.debug("\t\(pid) [cancelled on: \(cancellationDate)]")
+                    cancelledPurchases.insert(product)
                     return
                 }
                 if let purchaseDate = $0.originalPurchaseDate {