[Customer Center] Promotional Offers support

RevenueCatUI/CustomerCenter/Abstractions/CustomerCenterPurchasesType.swift

@@ -0,0 +1,32 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  CustomerCenterPurchaseType.swift
+//
+//  Created by Cesar de la Vega on 18/7/24.
+
+import Foundation
+import RevenueCat
+
+@available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, *)
+@available(macOS, unavailable)
+@available(tvOS, unavailable)
+@available(watchOS, unavailable)
+protocol CustomerCenterPurchasesType: Sendable {
+
+    @Sendable
+    func customerInfo() async throws -> CustomerInfo
+
+    @Sendable
+    func products(_ productIdentifiers: [String]) async -> [StoreProduct]
+
+    func promotionalOffer(forProductDiscount discount: StoreProductDiscount,
+                          product: StoreProduct) async throws -> PromotionalOffer
+
+}

RevenueCatUI/CustomerCenter/CustomerInfo+CurrentEntitlement.swift

@@ -0,0 +1,35 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  CustomerInfo+CurrentEntitlement.swift
+//
+//  Created by Cesar de la Vega on 17/7/24.
+
+import Foundation
+import RevenueCat
+
+extension CustomerInfo {
+
+    /// Returns the earliest expiring iOS App Store entitlement. If this CustomerInfo contains multiple lifetime 
+    /// entitlements and no expiring entitlements, the returned entitlement is undefined.
+    func earliestExpiringAppStoreEntitlement() -> EntitlementInfo? {
+        return self.entitlements
+            .active
+            .values
+            .lazy
+            .filter { $0.store == .appStore }
+            .sorted { lhs, rhs in
+                let lhsDateSeconds = lhs.expirationDate?.timeIntervalSince1970 ?? TimeInterval.greatestFiniteMagnitude
+                let rhsDateSeconds = rhs.expirationDate?.timeIntervalSince1970 ?? TimeInterval.greatestFiniteMagnitude
+                return lhsDateSeconds < rhsDateSeconds
+            }
+            .first
+    }
+
+}

RevenueCatUI/CustomerCenter/Data/CustomerCenterConfigTestData.swift

@@ -36,7 +36,12 @@ enum CustomerCenterConfigTestData {
                             id: "2",
                             title: "Request a refund",
                             type: .refundRequest,
-                            detail: nil
+                            detail: .promotionalOffer(CustomerCenterConfigData.HelpPath.PromotionalOffer(
+                                iosOfferId: "offer_id",
+                                eligible: true,
+                                title: "title",
+                                subtitle: "subtitle"
+                            ))
                         ),
                         .init(
                             id: "3",
@@ -53,15 +58,18 @@ enum CustomerCenterConfigTestData {
                                 options: [
                                     .init(
                                         id: "1",
-                                        title: "Too expensive"
+                                        title: "Too expensive",
+                                        promotionalOffer: nil
                                     ),
                                     .init(
                                         id: "2",
-                                        title: "Don't use the app"
+                                        title: "Don't use the app",
+                                        promotionalOffer: nil
                                     ),
                                     .init(
                                         id: "3",
-                                        title: "Bought by mistake"
+                                        title: "Bought by mistake",
+                                        promotionalOffer: nil
                                     )
                                 ]
                             ))

RevenueCatUI/CustomerCenter/Data/CustomerCenterEnvironment.swift

@@ -0,0 +1,31 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  CustomerCenterEnvironment.swift
+//
+//  Created by Cesar de la Vega on 19/7/24.
+
+import Foundation
+import RevenueCat
+import SwiftUI
+
+struct LocalizationKey: EnvironmentKey {
+
+    static let defaultValue: CustomerCenterConfigData.Localization? = nil
+
+}
+
+extension EnvironmentValues {
+
+    var localization: CustomerCenterConfigData.Localization? {
+        get { self[LocalizationKey.self] }
+        set { self[LocalizationKey.self] = newValue }
+    }
+
+}

RevenueCatUI/CustomerCenter/Data/CustomerCenterError.swift

@@ -21,6 +21,9 @@ enum CustomerCenterError: Error {
     /// Could not find information for an active subscription.
     case couldNotFindSubscriptionInformation
 
+    /// Could not find offer id for any active product
+    case couldNotFindOfferForActiveProducts
+
 }
 
 extension CustomerCenterError: CustomNSError {
@@ -35,6 +38,8 @@ extension CustomerCenterError: CustomNSError {
         switch self {
         case .couldNotFindSubscriptionInformation:
             return "Could not find information for an active subscription."
+        case .couldNotFindOfferForActiveProducts:
+            return "Could not find any product with specified offer id."
         }
     }
 

RevenueCatUI/CustomerCenter/Data/CustomerCenterPurchases.swift

@@ -0,0 +1,37 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  CustomerCenterPurchases.swift
+//
+//  Created by Cesar de la Vega on 18/7/24.
+
+import Foundation
+import RevenueCat
+
+@available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, *)
+@available(macOS, unavailable)
+@available(tvOS, unavailable)
+@available(watchOS, unavailable)
+final class CustomerCenterPurchases: CustomerCenterPurchasesType {
+
+    func customerInfo() async throws -> RevenueCat.CustomerInfo {
+        try await Purchases.shared.customerInfo()
+    }
+
+    func products(_ productIdentifiers: [String]) async -> [StoreProduct] {
+        await Purchases.shared.products(productIdentifiers)
+    }
+
+    func promotionalOffer(forProductDiscount discount: StoreProductDiscount,
+                          product: StoreProduct) async throws -> PromotionalOffer {
+        try await Purchases.shared.promotionalOffer(forProductDiscount: discount,
+                                                    product: product)
+    }
+
+}

RevenueCatUI/CustomerCenter/Data/FeedbackSurveyData.swift

@@ -25,11 +25,12 @@ import RevenueCat
 class FeedbackSurveyData: ObservableObject {
 
     var configuration: CustomerCenterConfigData.HelpPath.FeedbackSurvey
-    var action: (() -> Void)
+    var onOptionSelected: (() -> Void)
 
-    init(configuration: CustomerCenterConfigData.HelpPath.FeedbackSurvey, action: @escaping (() -> Void)) {
+    init(configuration: CustomerCenterConfigData.HelpPath.FeedbackSurvey,
+         onOptionSelected: @escaping (() -> Void)) {
         self.configuration = configuration
-        self.action = action
+        self.onOptionSelected = onOptionSelected
     }
 
 }

RevenueCatUI/CustomerCenter/Data/LoadPromotionalOfferUseCase.swift

@@ -0,0 +1,74 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  LoadPromotionalOfferUseCase.swift
+//
+//  Created by Cesar de la Vega on 18/7/24.
+
+import Foundation
+import RevenueCat
+
+protocol LoadPromotionalOfferUseCaseType {
+
+    func execute(
+        promoOfferDetails: CustomerCenterConfigData.HelpPath.PromotionalOffer
+    ) async -> Result<PromotionalOfferData, Error>
+
+}
+
+#if os(iOS)
+
+@available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, *)
+@available(macOS, unavailable)
+@available(tvOS, unavailable)
+@available(watchOS, unavailable)
+@available(visionOS, unavailable)
+@MainActor
+class LoadPromotionalOfferUseCase: LoadPromotionalOfferUseCaseType {
+
+    private let purchasesProvider: CustomerCenterPurchasesType
+
+    init(purchasesProvider: CustomerCenterPurchasesType = CustomerCenterPurchases()) {
+        self.purchasesProvider = purchasesProvider
+    }
+
+    func execute(
+        promoOfferDetails: CustomerCenterConfigData.HelpPath.PromotionalOffer
+    ) async -> Result<PromotionalOfferData, Error> {
+        do {
+            let customerInfo = try await self.purchasesProvider.customerInfo()
+
+            guard let productIdentifier = customerInfo.earliestExpiringAppStoreEntitlement()?.productIdentifier,
+                  let subscribedProduct = await self.purchasesProvider.products([productIdentifier]).first else {
+                Logger.warning(Strings.could_not_offer_for_active_subscriptions)
+                return .failure(CustomerCenterError.couldNotFindSubscriptionInformation)
+            }
+
+            guard let discount = subscribedProduct.discounts.first(where: {
+                $0.offerIdentifier == promoOfferDetails.iosOfferId
+            }) else {
+                Logger.warning(Strings.could_not_offer_for_active_subscriptions)
+                return .failure(CustomerCenterError.couldNotFindSubscriptionInformation)
+            }
+
+            let promotionalOffer = try await self.purchasesProvider.promotionalOffer(forProductDiscount: discount,
+                                                                                     product: subscribedProduct)
+            let promotionalOfferData = PromotionalOfferData(promotionalOffer: promotionalOffer,
+                                                            product: subscribedProduct,
+                                                            promoOfferDetails: promoOfferDetails)
+            return .success(promotionalOfferData)
+        } catch {
+            Logger.warning(Strings.error_fetching_promotional_offer(error))
+            return .failure(CustomerCenterError.couldNotFindOfferForActiveProducts)
+        }
+    }
+
+}
+
+#endif

RevenueCatUI/CustomerCenter/Data/PromotionalOfferData.swift

@@ -0,0 +1,24 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  PromotionalOfferData.swift
+//
+//  Created by Cesar de la Vega on 17/7/24.
+
+import Foundation
+import RevenueCat
+
+struct PromotionalOfferData: Identifiable {
+
+    let id = UUID()
+    let promotionalOffer: PromotionalOffer
+    let product: StoreProduct
+    let promoOfferDetails: CustomerCenterConfigData.HelpPath.PromotionalOffer
+
+}

RevenueCatUI/CustomerCenter/ViewModels/FeedbackSurveyViewModel.swift

@@ -0,0 +1,74 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  FeedbackSurveyViewModel.swift
+//
+//
+//  Created by Cesar de la Vega on 17/6/24.
+//
+
+import Foundation
+import RevenueCat
+
+#if os(iOS)
+
+@available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, *)
+@available(macOS, unavailable)
+@available(tvOS, unavailable)
+@available(watchOS, unavailable)
+@MainActor
+class FeedbackSurveyViewModel: ObservableObject {
+
+    var feedbackSurveyData: FeedbackSurveyData
+
+    @Published
+    var loadingState: String?
+    @Published
+    var promotionalOfferData: PromotionalOfferData?
+
+    private var purchasesProvider: CustomerCenterPurchasesType
+    private let loadPromotionalOfferUseCase: LoadPromotionalOfferUseCaseType
+
+    convenience init(feedbackSurveyData: FeedbackSurveyData) {
+        self.init(feedbackSurveyData: feedbackSurveyData,
+                  purchasesProvider: CustomerCenterPurchases(),
+                  loadPromotionalOfferUseCase: LoadPromotionalOfferUseCase())
+    }
+
+    init(feedbackSurveyData: FeedbackSurveyData,
+         purchasesProvider: CustomerCenterPurchasesType,
+         loadPromotionalOfferUseCase: LoadPromotionalOfferUseCaseType) {
+        self.feedbackSurveyData = feedbackSurveyData
+        self.purchasesProvider = purchasesProvider
+        self.loadPromotionalOfferUseCase = loadPromotionalOfferUseCase
+    }
+
+    func handleAction(for option: CustomerCenterConfigData.HelpPath.FeedbackSurvey.Option) async {
+        if let promotionalOffer = option.promotionalOffer {
+            self.loadingState = option.id
+            let result = await loadPromotionalOfferUseCase.execute(promoOfferDetails: promotionalOffer)
+            switch result {
+            case .success(let promotionalOfferData):
+                self.promotionalOfferData = promotionalOfferData
+            case .failure:
+                self.feedbackSurveyData.onOptionSelected()
+            }
+        } else {
+            self.feedbackSurveyData.onOptionSelected()
+        }
+    }
+
+    func handleSheetDismiss() {
+        self.feedbackSurveyData.onOptionSelected()
+        self.loadingState = nil
+    }
+
+}
+
+#endif