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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| // | ||
| // AppStorePurchaseFlow.swift | ||
| // | ||
| // Copyright © 2023 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
| import StoreKit | ||
|
|
||
| @available(macOS 12.0, iOS 15.0, *) | ||
| public final class AppStoreRestoreFlow { | ||
|
|
||
| // swiftlint:disable:next large_tuple | ||
| public typealias RestoredAccountDetails = (authToken: String, accessToken: String, externalID: String, email: String?) | ||
|
|
||
| public enum Error: Swift.Error { | ||
| case missingAccountOrTransactions | ||
| case pastTransactionAuthenticationError | ||
| case failedToObtainAccessToken | ||
| case failedToFetchAccountDetails | ||
| case failedToFetchSubscriptionDetails | ||
| case subscriptionExpired(accountDetails: RestoredAccountDetails) | ||
| case somethingWentWrong | ||
| } | ||
|
|
||
| public static func restoreAccountFromPastPurchase() async -> Result<Void, AppStoreRestoreFlow.Error> { | ||
| guard let lastTransactionJWSRepresentation = await PurchaseManager.mostRecentTransaction() else { return .failure(.missingAccountOrTransactions) } | ||
|
|
||
| let accountManager = AccountManager() | ||
|
|
||
| // Do the store login to get short-lived token | ||
| let authToken: String | ||
|
|
||
| switch await AuthService.storeLogin(signature: lastTransactionJWSRepresentation) { | ||
| case .success(let response): | ||
| authToken = response.authToken | ||
| case .failure: | ||
| return .failure(.pastTransactionAuthenticationError) | ||
| } | ||
|
|
||
| let accessToken: String | ||
| let email: String? | ||
| let externalID: String | ||
|
|
||
| switch await accountManager.exchangeAuthTokenToAccessToken(authToken) { | ||
| case .success(let exchangedAccessToken): | ||
| accessToken = exchangedAccessToken | ||
| case .failure: | ||
| return .failure(.failedToObtainAccessToken) | ||
| } | ||
|
|
||
| switch await accountManager.fetchAccountDetails(with: accessToken) { | ||
| case .success(let accountDetails): | ||
| email = accountDetails.email | ||
| externalID = accountDetails.externalID | ||
| case .failure: | ||
| return .failure(.failedToFetchAccountDetails) | ||
| } | ||
|
|
||
| var isSubscriptionActive = false | ||
|
|
||
| switch await SubscriptionService.getSubscriptionDetails(token: accessToken) { | ||
| case .success(let response): | ||
| isSubscriptionActive = response.isSubscriptionActive | ||
| case .failure: | ||
| return .failure(.somethingWentWrong) | ||
| } | ||
|
|
||
| if isSubscriptionActive { | ||
| accountManager.storeAuthToken(token: authToken) | ||
| accountManager.storeAccount(token: accessToken, email: email, externalID: externalID) | ||
| return .success(()) | ||
| } else { | ||
| let details = RestoredAccountDetails(authToken: authToken, accessToken: accessToken, externalID: externalID, email: email) | ||
| return .failure(.subscriptionExpired(accountDetails: details)) | ||
| } | ||
| } | ||
| } | ||
File renamed without changes.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| // | ||
| // StripePurchaseFlow.swift | ||
| // | ||
| // Copyright © 2023 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
| import StoreKit | ||
|
|
||
| public final class StripePurchaseFlow { | ||
|
|
||
| public enum Error: Swift.Error { | ||
| case noProductsFound | ||
| case accountCreationFailed | ||
| } | ||
|
|
||
| public static func subscriptionOptions() async -> Result<SubscriptionOptions, StripePurchaseFlow.Error> { | ||
|
|
||
| guard case let .success(products) = await SubscriptionService.getProducts(), !products.isEmpty else { return .failure(.noProductsFound) } | ||
|
|
||
| let currency = products.first?.currency ?? "USD" | ||
|
|
||
| let formatter = NumberFormatter() | ||
| formatter.numberStyle = .currency | ||
| formatter.locale = Locale(identifier: "en_US@currency=\(currency)") | ||
|
|
||
| let options: [SubscriptionOption] = products.map { | ||
| var displayPrice = "\($0.price) \($0.currency)" | ||
|
|
||
| if let price = Float($0.price), let formattedPrice = formatter.string(from: price as NSNumber) { | ||
| displayPrice = formattedPrice | ||
| } | ||
|
|
||
| let cost = SubscriptionOptionCost(displayPrice: displayPrice, recurrence: $0.billingPeriod.lowercased()) | ||
|
|
||
| return SubscriptionOption(id: $0.productId, | ||
| cost: cost) | ||
| } | ||
|
|
||
| let features = SubscriptionFeatureName.allCases.map { SubscriptionFeature(name: $0.rawValue) } | ||
|
|
||
| return .success(SubscriptionOptions(platform: SubscriptionPlatformName.stripe.rawValue, | ||
| options: options, | ||
| features: features)) | ||
| } | ||
|
|
||
| public static func prepareSubscriptionPurchase(emailAccessToken: String?) async -> Result<PurchaseUpdate, StripePurchaseFlow.Error> { | ||
|
|
||
| var authToken: String = "" | ||
|
|
||
| switch await AuthService.createAccount(emailAccessToken: emailAccessToken) { | ||
| case .success(let response): | ||
| authToken = response.authToken | ||
| AccountManager().storeAuthToken(token: authToken) | ||
| case .failure: | ||
| return .failure(.accountCreationFailed) | ||
| } | ||
|
|
||
| return .success(PurchaseUpdate(type: "redirect", token: authToken)) | ||
| } | ||
|
|
||
| public static func completeSubscriptionPurchase() async { | ||
| let accountManager = AccountManager() | ||
|
|
||
| if let authToken = accountManager.authToken { | ||
| print("Exchanging token") | ||
|
|
||
| if case let .success(accessToken) = await accountManager.exchangeAuthTokenToAccessToken(authToken), | ||
| case let .success(accountDetails) = await accountManager.fetchAccountDetails(with: accessToken) { | ||
| accountManager.storeAuthToken(token: authToken) | ||
| accountManager.storeAccount(token: accessToken, email: accountDetails.email, externalID: accountDetails.externalID) | ||
| } | ||
| } | ||
|
|
||
| if #available(macOS 12.0, iOS 15.0, *) { | ||
| await AppStorePurchaseFlow.checkForEntitlements(wait: 2.0, retry: 5) | ||
| } | ||
| } | ||
| } | ||
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