Revert "[in_app_purchase_storekit] Add support for purchase and transactions #7574" (#7886)

Reverts #7812

See #7812 (comment)

Author: stuartmorgan-g

packages/in_app_purchase/in_app_purchase_storekit/CHANGELOG.md

@@ -1,7 +1,3 @@
-## 0.3.18+2
-
-* Adds support for StoreKit2's `purchase` and `transactions`
-
 ## 0.3.18+1
 
 * Adds support for StoreKit2's `canMakePayments` and `products` 

packages/in_app_purchase/in_app_purchase_storekit/darwin/Classes/InAppPurchasePlugin.swift

@@ -27,21 +27,6 @@ public class InAppPurchasePlugin: NSObject, FlutterPlugin, InAppPurchaseAPI {
   // This property is optional, as it requires self to exist to be initialized.
   public var paymentQueueHandler: FLTPaymentQueueHandlerProtocol?
 
-  // This should be an Task, but Task is on available >= iOS 13
-  private var _updateListenerTask: Any?
-
-  @available(iOS 13.0, *)
-  var updateListenerTask: Task<(), Never> {
-    return self._updateListenerTask as! Task<(), Never>
-  }
-
-  @available(iOS 13.0, *)
-  func setListenerTaskAsTask(task: Task<(), Never>) {
-    self._updateListenerTask = task
-  }
-
-  var transactionCallbackAPI: InAppPurchase2CallbackAPI? = nil
-
   public static func register(with registrar: FlutterPluginRegistrar) {
     #if os(iOS)
       let messenger = registrar.messenger()
@@ -108,7 +93,6 @@ public class InAppPurchasePlugin: NSObject, FlutterPlugin, InAppPurchaseAPI {
       let messenger = registrar.messenger
     #endif
     setupTransactionObserverChannelIfNeeded(withMessenger: messenger)
-    self.transactionCallbackAPI = InAppPurchase2CallbackAPI(binaryMessenger: messenger)
   }
 
   // MARK: - Pigeon Functions

packages/in_app_purchase/in_app_purchase_storekit/darwin/Classes/StoreKit2/InAppPurchaseStoreKit2.swift

@@ -4,17 +4,16 @@
 
 @available(iOS 15.0, macOS 12.0, *)
 extension InAppPurchasePlugin: InAppPurchase2API {
-
   // MARK: - Pigeon Functions
 
-  /// Wrapper method around StoreKit2's canMakePayments() method
-  /// https://developer.apple.com/documentation/storekit/appstore/3822277-canmakepayments
+  // Wrapper method around StoreKit2's canMakePayments() method
+  // https://developer.apple.com/documentation/storekit/appstore/3822277-canmakepayments
   func canMakePayments() throws -> Bool {
     return AppStore.canMakePayments
   }
 
-  /// Wrapper method around StoreKit2's products() method
-  /// https://developer.apple.com/documentation/storekit/product/3851116-products
+  // Wrapper method around StoreKit2's products() method
+  // https://developer.apple.com/documentation/storekit/product/3851116-products
   func products(
     identifiers: [String], completion: @escaping (Result<[SK2ProductMessage], Error>) -> Void
   ) {
@@ -35,146 +34,4 @@ extension InAppPurchasePlugin: InAppPurchase2API {
       }
     }
   }
-
-  /// Gets the appropriate product, then calls purchase on it.
-  /// https://developer.apple.com/documentation/storekit/product/3791971-purchase
-  func purchase(
-    id: String, options: SK2ProductPurchaseOptionsMessage?,
-    completion: @escaping (Result<SK2ProductPurchaseResultMessage, Error>) -> Void
-  ) {
-    Task { @MainActor in
-      do {
-        guard let product = try await Product.products(for: [id]).first else {
-          let error = PigeonError(
-            code: "storekit2_failed_to_fetch_product",
-            message: "Storekit has failed to fetch this product.",
-            details: "Product ID : \(id)")
-          return completion(.failure(error))
-        }
-
-        let result = try await product.purchase(options: [])
-
-        switch result {
-        case .success(let verification):
-          switch verification {
-          case .verified(let transaction):
-            self.sendTransactionUpdate(transaction: transaction)
-            completion(.success(result.convertToPigeon()))
-          case .unverified(_, let error):
-            completion(.failure(error))
-          }
-        case .pending:
-          completion(
-            .failure(
-              PigeonError(
-                code: "storekit2_purchase_pending",
-                message:
-                  "This transaction is still pending and but may complete in the future. If it completes, it will be delivered via `purchaseStream`",
-                details: "Product ID : \(id)")))
-        case .userCancelled:
-          completion(
-            .failure(
-              PigeonError(
-                code: "storekit2_purchase_cancelled",
-                message: "This transaction has been cancelled by the user.",
-                details: "Product ID : \(id)")))
-        @unknown default:
-          fatalError("An unknown StoreKit PurchaseResult has been encountered.")
-        }
-      } catch {
-        completion(.failure(error))
-      }
-    }
-  }
-
-  /// Wrapper method around StoreKit2's transactions() method
-  /// https://developer.apple.com/documentation/storekit/product/3851116-products
-  func transactions(
-    completion: @escaping (Result<[SK2TransactionMessage], Error>) -> Void
-  ) {
-    Task {
-      @MainActor in
-      do {
-        let transactionsMsgs = await rawTransactions().map {
-          $0.convertToPigeon()
-        }
-        completion(.success(transactionsMsgs))
-      }
-    }
-  }
-
-  /// Wrapper method around StoreKit2's finish() method https://developer.apple.com/documentation/storekit/transaction/3749694-finish
-  func finish(id: Int64, completion: @escaping (Result<Void, Error>) -> Void) {
-    Task {
-      let transaction = try await fetchTransaction(by: UInt64(id))
-      if let transaction = transaction {
-        await transaction.finish()
-      }
-    }
-  }
-
-  /// This Task listens  to Transation.updates as shown here
-  /// https://developer.apple.com/documentation/storekit/transaction/3851206-updates
-  /// This function should be called as soon as the app starts to avoid missing any Transactions done outside of the app.
-  func startListeningToTransactions() throws {
-    self.setListenerTaskAsTask(
-      task: Task { [weak self] in
-        for await verificationResult in Transaction.updates {
-          switch verificationResult {
-          case .verified(let transaction):
-            self?.sendTransactionUpdate(transaction: transaction)
-          case .unverified:
-            break
-          }
-        }
-      })
-  }
-
-  /// Stop subscribing to Transaction.updates
-  func stopListeningToTransactions() throws {
-    updateListenerTask.cancel()
-  }
-
-  /// Sends an transaction back to Dart. Access these transactions with `purchaseStream`
-  func sendTransactionUpdate(transaction: Transaction) {
-    let transactionMessage = transaction.convertToPigeon()
-    transactionCallbackAPI?.onTransactionsUpdated(newTransaction: transactionMessage) { result in
-      switch result {
-      case .success: break
-      case .failure(let error):
-        print("Failed to send transaction updates: \(error)")
-      }
-    }
-  }
-
-  // MARK: - Convenience Functions
-
-  /// Helper function that fetches and unwraps all verified transactions
-  private func rawTransactions() async -> [Transaction] {
-    var transactions: [Transaction] = []
-    for await verificationResult in Transaction.all {
-      switch verificationResult {
-      case .verified(let transaction):
-        transactions.append(transaction)
-      case .unverified:
-        break
-      }
-    }
-    return transactions
-  }
-
-  /// Helper function to fetch specific transaction
-  private func fetchTransaction(by id: UInt64) async throws -> Transaction? {
-    for await result in Transaction.all {
-      switch result {
-      case .verified(let transaction):
-        if transaction.id == id {
-          return transaction
-        }
-      case .unverified:
-        continue
-      }
-    }
-    return nil
-  }
 }

packages/in_app_purchase/in_app_purchase_storekit/darwin/Classes/StoreKit2/StoreKit2Translators.swift

@@ -167,38 +167,3 @@ extension SK2PriceLocaleMessage: Equatable {
     return lhs.currencyCode == rhs.currencyCode && lhs.currencySymbol == rhs.currencySymbol
   }
 }
-
-@available(iOS 15.0, macOS 12.0, *)
-extension Product.PurchaseResult {
-  func convertToPigeon() -> SK2ProductPurchaseResultMessage {
-    switch self {
-    case .success(_):
-      return SK2ProductPurchaseResultMessage.success
-    case .userCancelled:
-      return SK2ProductPurchaseResultMessage.userCancelled
-    case .pending:
-      return SK2ProductPurchaseResultMessage.pending
-    @unknown default:
-      fatalError()
-    }
-  }
-}
-
-@available(iOS 15.0, macOS 12.0, *)
-extension Transaction {
-  func convertToPigeon(restoring: Bool = false) -> SK2TransactionMessage {
-
-    let dateFromatter: DateFormatter = DateFormatter()
-    dateFromatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
-
-    return SK2TransactionMessage(
-      id: Int64(id),
-      originalId: Int64(originalID),
-      productId: productID,
-      purchaseDate: dateFromatter.string(from: purchaseDate),
-      purchasedQuantity: Int64(purchasedQuantity),
-      appAccountToken: appAccountToken?.uuidString,
-      restoring: restoring
-    )
-  }
-}